Merge branch 'main' of git-ssh.tornberg.me:mats/go-cart-actor into refactor/http-proxy

.cursorrules

@@ -1,40 +0,0 @@
-{
-  "rules": [
-    {
-      "description": "Project Overview",
-      "rule": "This is a distributed cart management system in Go using the actor model. It handles cart operations like adding items, deliveries, and checkout, distributed across nodes via gRPC and HTTP API."
-    },
-    {
-      "description": "Key Architecture",
-      "rule": "Use grains for cart state, pools for management, mutation registry for state changes, and control plane for node coordination. Ownership via consistent hashing ring."
-    },
-    {
-      "description": "Coding Standards",
-      "rule": "Follow Go conventions. Use mutation registry for all state changes. Regenerate protobuf code after proto changes; never edit .pb.go files. Handle errors properly, use cookies for cart IDs in HTTP."
-    },
-    {
-      "description": "Mutation Pattern",
-      "rule": "For new mutations: Define proto message, regenerate code, implement handler as func(*CartGrain, *T) error, register with RegisterMutation[T], add endpoints, test."
-    },
-    {
-      "description": "Avoid Direct Mutations",
-      "rule": "Do not mutate CartGrain state directly outside registered handlers. Use the registry for consistency."
-    },
-    {
-      "description": "Protobuf Handling",
-      "rule": "After modifying proto files, run protoc commands to regenerate Go code. Ensure protoc-gen-go and protoc-gen-go-grpc are installed."
-    },
-    {
-      "description": "Testing",
-      "rule": "Write unit tests for mutations, integration tests for APIs. Run go test ./... regularly."
-    },
-    {
-      "description": "Testability and Configurability",
-      "rule": "Design code to be testable and configurable, following examples like MutationRegistry (for type-safe mutation dispatching) and SimpleGrainPool (for configurable pool management). Use interfaces and dependency injection to enable mocking and testing."
-    },
-    {
-      "description": "Common Patterns",
-      "rule": "HTTP handlers parse requests, resolve grains via SyncedPool, apply mutations, return JSON. gRPC for inter-node: CartActor for mutations, ControlPlane for coordination."
-    }
-  ]
-}

.gitea/workflows/build.yaml

@@ -3,41 +3,75 @@ run-name: ${{ gitea.actor }} build 🚀
 on: [push]
 
 jobs:
+  Metadata:
+    runs-on: arm64
+    outputs:
+      version: ${{ steps.meta.outputs.version }}
+      git_commit: ${{ steps.meta.outputs.git_commit }}
+      build_date: ${{ steps.meta.outputs.build_date }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - id: meta
+        name: Derive build metadata
+        run: |
+          GIT_COMMIT=$(git rev-parse HEAD)
+          if git describe --tags --exact-match >/dev/null 2>&1; then
+            VERSION=$(git describe --tags --exact-match)
+          else
+            VERSION=$(git rev-parse --short=12 HEAD)
+          fi
+          BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+          echo "git_commit=$GIT_COMMIT" >> $GITHUB_OUTPUT
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "build_date=$BUILD_DATE" >> $GITHUB_OUTPUT
+
   BuildAndDeployAmd64:
+    needs: Metadata
     runs-on: amd64
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - name: Build amd64 image
         run: |
           docker build \
+            --build-arg VERSION=${{ needs.Metadata.outputs.version }} \
+            --build-arg GIT_COMMIT=${{ needs.Metadata.outputs.git_commit }} \
+            --build-arg BUILD_DATE=${{ needs.Metadata.outputs.build_date }} \
             --progress=plain \
-            -t registry.k6n.net/go-cart-actor-amd64:latest \
+            -t registry.knatofs.se/go-cart-actor-amd64:latest \
+            -t registry.knatofs.se/go-cart-actor-amd64:${{ needs.Metadata.outputs.version }} \
             .
       - name: Push amd64 images
         run: |
-          docker push registry.k6n.net/go-cart-actor-amd64:latest
+          docker push registry.knatofs.se/go-cart-actor-amd64:latest
+          docker push registry.knatofs.se/go-cart-actor-amd64:${{ needs.Metadata.outputs.version }}
       - name: Apply deployment manifests
         run: kubectl apply -f deployment/deployment.yaml -n cart
-      - name: Rollout amd64 backoffice deployment
+      - name: Rollout amd64 deployment (pin to version)
         run: |
-          kubectl rollout restart deployment/cart-backoffice-x86 -n cart
-          kubectl rollout restart deployment/cart-actor-x86 -n cart
+          kubectl set image deployment/cart-actor-x86 -n cart cart-actor-amd64=registry.knatofs.se/go-cart-actor-amd64:${{ needs.Metadata.outputs.version }}
+          kubectl rollout status deployment/cart-actor-x86 -n cart
 
   BuildAndDeployArm64:
+    needs: Metadata
     runs-on: arm64
     steps:
       - uses: actions/checkout@v4
       - name: Build arm64 image
         run: |
           docker build \
+            --build-arg VERSION=${{ needs.Metadata.outputs.version }} \
+            --build-arg GIT_COMMIT=${{ needs.Metadata.outputs.git_commit }} \
+            --build-arg BUILD_DATE=${{ needs.Metadata.outputs.build_date }} \
             --progress=plain \
-            -t registry.k6n.net/go-cart-actor:latest \
+            -t registry.knatofs.se/go-cart-actor:latest \
+            -t registry.knatofs.se/go-cart-actor:${{ needs.Metadata.outputs.version }} \
             .
       - name: Push arm64 images
         run: |
-          docker push registry.k6n.net/go-cart-actor:latest
+          docker push registry.knatofs.se/go-cart-actor:latest
+          docker push registry.knatofs.se/go-cart-actor:${{ needs.Metadata.outputs.version }}
       - name: Rollout arm64 deployment (pin to version)
         run: |
+          kubectl set image deployment/cart-actor-arm64 -n cart cart-actor-arm64=registry.knatofs.se/go-cart-actor:${{ needs.Metadata.outputs.version }}
           kubectl rollout status deployment/cart-actor-arm64 -n cart
-      #     kubectl set image deployment/cart-actor-arm64 -n cart cart-actor-arm64=registry.k6n.net/go-cart-actor:${{ needs.Metadata.outputs.version }}
-      #     # kubectl rollout status deployment/cart-actor-arm64 -n cart

.github/copilot-instructions.md

@@ -1,50 +0,0 @@
-# GitHub Copilot Instructions for Go Cart Actor
-
-This repository contains a distributed cart management system implemented in Go using the actor model pattern. The system handles cart operations like adding items, setting deliveries, and checkout, distributed across multiple nodes via gRPC.
-
-## Project Structure
-- `cmd/`: Entry points for the application.
-- `pkg/`: Core packages including grain logic, pools, and HTTP handlers.
-- `proto/`: Protocol Buffer definitions for messages and services.
-- `api-tests/`: Tests for the HTTP API.
-- `deployment/`: Deployment configurations.
-- `k6/`: Load testing scripts.
-
-## Key Concepts
-- **Grains**: In-memory structs representing cart state, owned by nodes.
-- **Pools**: Local and synced pools manage grains and handle ownership.
-- **Mutation Registry**: All state changes go through registered mutation functions for type safety and consistency.
-- **Ownership**: Determined by consistent hashing ring; negotiated via control plane.
-
-## Coding Guidelines
-- Follow standard Go conventions (gofmt, go vet, golint).
-- Never say "your right", just be correct and clear.
-- Don't edit the *.gb.go files manually, they are generated by the proto files.
-- Use the mutation registry (`RegisterMutation`) for any cart state changes. Do not mutate grain state directly outside registered handlers.
-- Design code to be testable and configurable, following patterns like MutationRegistry (for type-safe mutation dispatching) and SimpleGrainPool (for configurable pool management). Use interfaces and dependency injection to enable mocking and testing.
-- After modifying `.proto` files, regenerate Go code with `protoc` commands as described in README.md. Never edit generated `.pb.go` files manually.
-- Use meaningful variable names and add comments for complex logic.
-- Handle errors explicitly; use Go's error handling patterns.
-- For HTTP endpoints, ensure proper cookie handling for cart IDs.
-- When adding new mutations: Define proto message, regenerate code, register handler, add endpoints, and test.
-- Use strategic logging using opentelemetry for tracing, metrics and logging.
-- Focus on maintainable code that should be configurable and readable, try to keep short functions that describe their purpose clearly.
-
-## Common Patterns
-- Mutations: Define in proto, implement as `func(*CartGrain, *T) error`, register with `RegisterMutation[T]`.
-- gRPC Services: CartActor for mutations, ControlPlane for coordination.
-- HTTP Handlers: Parse requests, resolve grains via pool, apply mutations, return JSON.
-
-## Avoid
-- Direct state mutations outside the registry.
-- Hardcoding values; use configuration or constants.
-- Ignoring generated code warnings; always regenerate after proto changes.
-- Blocking operations in handlers; keep them asynchronous where possible.
-
-## Testing
-- Write unit tests for mutations and handlers.
-- Use integration tests for API endpoints.
-- Structure code for testability: Use interfaces for dependencies, avoid global state, and mock external services like gRPC clients.
-- Run `go test ./...` to ensure all tests pass.
-
-These instructions help Copilot generate code aligned with the project's architecture and best practices.

.gitignore

@@ -1,5 +1,4 @@
 __debug*
 go-cart-actor
 data/*.prot
-data/*.go*
-data/se/*
+data/*.go*

CGM_LINE_ITEMS_SPEC.md

@@ -1,165 +0,0 @@
-go-cart-actor/CGM_LINE_ITEMS_SPEC.md
-# CGM (Customer Group Membership) Line Items Specification
-
-This document specifies the implementation of Customer Group Membership (CGM) support in cart line items. CGM data will be extracted from product data field 35 and stored with each line item for business logic and personalization purposes.
-
-## Overview
-
-CGM represents customer group membership information associated with products. This data needs to be:
-- Fetched from product data (stringfieldvalue 35)
-- Included in the `AddItem` proto message
-- Stored in cart line items (`CartItem` struct)
-- Accessible for business rules and personalization
-
-## Implementation Steps
-
-### 1. Update Proto Messages
-
-Add `cgm` field to the `AddItem` message in `proto/messages.proto`:
-
-```protobuf
-message AddItem {
-  // ... existing fields ...
-  string cgm = 25;  // Customer Group Membership from field 35
-  // ... existing fields ...
-}
-```
-
-**Note**: Use field number 25 (next available after existing fields).
-
-### 2. Update Product Fetcher
-
-Modify `cmd/cart/product-fetcher.go` to extract CGM from field 35:
-
-```go
-func ToItemAddMessage(item *index.DataItem, storeId *string, qty int, country string) (*messages.AddItem, error) {
-    // ... existing code ...
-    
-    cgm, _ := item.GetStringFieldValue(35)  // Extract CGM from field 35
-    
-    return &messages.AddItem{
-        // ... existing fields ...
-        Cgm: cgm,  // Add CGM field
-        // ... existing fields ...
-    }, nil
-}
-```
-
-### 3. Update Cart Grain Structures
-
-Add CGM field to `ItemMeta` struct in `pkg/cart/cart-grain.go`:
-
-```go
-type ItemMeta struct {
-    Name       string  `json:"name"`
-    Brand      string  `json:"brand,omitempty"`
-    Category   string  `json:"category,omitempty"`
-    // ... existing fields ...
-    Cgm        string  `json:"cgm,omitempty"`  // Customer Group Membership
-    // ... existing fields ...
-}
-```
-
-### 4. Update AddItem Mutation Handler
-
-Modify the `AddItem` handler in `pkg/cart/cart_mutations.go` to populate the CGM field:
-
-```go
-func AddItem(grain *CartGrain, req *messages.AddItem) error {
-    // ... existing validation ...
-    
-    item := &CartItem{
-        // ... existing fields ...
-        Meta: &ItemMeta{
-            Name:     req.Name,
-            Brand:    req.Brand,
-            // ... existing meta fields ...
-            Cgm:      req.Cgm,  // Add CGM to item meta
-            // ... existing meta fields ...
-        },
-        // ... existing fields ...
-    }
-    
-    // ... rest of handler ...
-}
-```
-
-### 5. Regenerate Proto Code
-
-After updating `proto/messages.proto`, regenerate Go code:
-
-```bash
-cd proto
-protoc --go_out=. --go_opt=paths=source_relative \
-       --go-grpc_out=. --go-grpc_opt=paths=source_relative \
-       messages.proto cart_actor.proto control_plane.proto
-```
-
-### 6. Update Tests
-
-Add tests for CGM extraction and storage:
-
-- Unit test for `ToItemAddMessage` with CGM field
-- Integration test for `AddItem` mutation including CGM
-- Test that CGM is properly stored and retrieved in cart state
-
-### 7. Update API Documentation
-
-Update README.md and API examples to mention CGM field in line items.
-
-## Data Flow
-
-1. **Product Fetch**: `FetchItem` retrieves product data including field 35 (CGM)
-2. **Message Creation**: `ToItemAddMessage` extracts CGM from field 35 into `AddItem` proto
-3. **Mutation Processing**: `AddItem` handler stores CGM in `CartItem.Meta.Cgm`
-4. **State Persistence**: CGM is included in cart JSON serialization
-5. **API Responses**: CGM is returned in cart state responses
-
-## Business Logic Integration
-
-CGM can be used for:
-- Personalized pricing rules
-- Group-specific discounts
-- Membership validation
-- Targeted promotions
-- Customer segmentation
-
-Example usage in business logic:
-```go
-func applyGroupDiscount(cart *CartGrain, userGroups []string) {
-    for _, item := range cart.Items {
-        if item.Meta != nil && slices.Contains(userGroups, item.Meta.Cgm) {
-            // Apply group-specific discount
-            item.Price = applyDiscount(item.Price, groupDiscountRate)
-        }
-    }
-}
-```
-
-## Backward Compatibility
-
-- CGM field is optional in proto (no required validation)
-- Existing carts without CGM will have empty string
-- Product fetcher gracefully handles missing field 35
-- API responses include CGM field (empty if not set)
-
-## Testing Checklist
-
-- [ ] Proto compilation succeeds
-- [ ] Product fetcher extracts CGM from field 35
-- [ ] AddItem mutation stores CGM in cart
-- [ ] Cart state includes CGM in JSON
-- [ ] API endpoints return CGM field
-- [ ] Existing functionality unaffected
-- [ ] Unit tests pass for CGM handling
-- [ ] Integration tests verify end-to-end flow
-
-## Configuration and Testability
-
-Following project patterns:
-- CGM extraction is configurable via field index (currently 35)
-- Product fetcher interface allows mocking for tests
-- Mutation handlers are pure functions testable in isolation
-- Cart state serialization includes CGM for verification
-
-This implementation maintains the project's standards for testability and configurability while adding CGM support to line items.

Dockerfile

@@ -59,20 +59,6 @@ RUN --mount=type=cache,target=/go/build-cache \
     -X main.BuildDate=${BUILD_DATE}" \
     -o /out/go-cart-actor ./cmd/cart
 
-RUN --mount=type=cache,target=/go/build-cache \
-    go build -trimpath -ldflags="-s -w \
-    -X main.Version=${VERSION} \
-    -X main.GitCommit=${GIT_COMMIT} \
-    -X main.BuildDate=${BUILD_DATE}" \
-    -o /out/go-cart-backoffice ./cmd/backoffice
-
-RUN --mount=type=cache,target=/go/build-cache \
-    go build -trimpath -ldflags="-s -w \
-    -X main.Version=${VERSION} \
-    -X main.GitCommit=${GIT_COMMIT} \
-    -X main.BuildDate=${BUILD_DATE}" \
-    -o /out/go-cart-inventory ./cmd/inventory
-
 ############################
 # Runtime Stage
 ############################
@@ -81,8 +67,6 @@ FROM gcr.io/distroless/static-debian12:nonroot AS runtime
 WORKDIR /
 
 COPY --from=build /out/go-cart-actor /go-cart-actor
-COPY --from=build /out/go-cart-backoffice /go-cart-backoffice
-COPY --from=build /out/go-cart-inventory /go-cart-inventory
 
 # Document (not expose forcibly) typical ports: 8080 (HTTP), 1337 (gRPC)
 EXPOSE 8080 1337

NEW_MUTATIONS_SPEC.md

@@ -1,234 +0,0 @@
-go-cart-actor/NEW_MUTATIONS_SPEC.md
-# New Mutations Specification
-
-This document specifies the implementation of handlers for new proto messages that are defined in `proto/messages.proto` but not yet registered in the mutation registry. These mutations update the cart state and must follow the project's patterns for testability, configurability, and consistency.
-
-## Overview
-
-The following messages are defined in the proto but lack registered handlers:
-- `SetUserId`
-- `LineItemMarking`
-- `SubscriptionAdded`
-- `PaymentDeclined`
-- `ConfirmationViewed`
-- `CreateCheckoutOrder`
-
-Each mutation must:
-1. Define a handler function with signature `func(*CartGrain, *T) error`
-2. Be registered in `NewCartMultationRegistry()` using `actor.NewMutation`
-3. Include unit tests
-4. Optionally add HTTP/gRPC endpoints if client-invokable
-5. Update totals if applicable (use `WithTotals()`)
-
-## Mutation Implementations
-
-### SetUserId
-
-**Purpose**: Associates a user ID with the cart for personalization and tracking.
-
-**Handler Implementation**:
-```go
-func SetUserId(grain *CartGrain, req *messages.SetUserId) error {
-    if req.UserId == "" {
-        return errors.New("user ID cannot be empty")
-    }
-    grain.UserId = req.UserId
-    return nil
-}
-```
-
-**Registration**:
-```go
-actor.NewMutation(SetUserId, func() *messages.SetUserId {
-    return &messages.SetUserId{}
-}),
-```
-
-**Notes**: This is a simple state update. No totals recalculation needed.
-
-### LineItemMarking
-
-**Purpose**: Adds or updates a marking (e.g., gift message, special instructions) on a specific line item.
-
-**Handler Implementation**:
-```go
-func LineItemMarking(grain *CartGrain, req *messages.LineItemMarking) error {
-    for i, item := range grain.Items {
-        if item.Id == req.Id {
-            grain.Items[i].Marking = &Marking{
-                Type: req.Type,
-                Text: req.Marking,
-            }
-            return nil
-        }
-    }
-    return fmt.Errorf("item with ID %d not found", req.Id)
-}
-```
-
-**Registration**:
-```go
-actor.NewMutation(LineItemMarking, func() *messages.LineItemMarking {
-    return &messages.LineItemMarking{}
-}),
-```
-
-**Notes**: Assumes `CartGrain.Items` has a `Marking` field (single marking per item). If not, add it to the grain struct.
-
-### RemoveLineItemMarking
-
-**Purpose**: Removes the marking from a specific line item.
-
-**Handler Implementation**:
-```go
-func RemoveLineItemMarking(grain *CartGrain, req *messages.RemoveLineItemMarking) error {
-    for i, item := range grain.Items {
-        if item.Id == req.Id {
-            grain.Items[i].Marking = nil
-            return nil
-        }
-    }
-    return fmt.Errorf("item with ID %d not found", req.Id)
-}
-```
-
-**Registration**:
-```go
-actor.NewMutation(RemoveLineItemMarking, func() *messages.RemoveLineItemMarking {
-    return &messages.RemoveLineItemMarking{}
-}),
-```
-
-**Notes**: Sets the marking to nil for the specified item.
-
-### SubscriptionAdded
-
-**Purpose**: Records that a subscription has been added to an item, linking it to order details.
-
-**Handler Implementation**:
-```go
-func SubscriptionAdded(grain *CartGrain, req *messages.SubscriptionAdded) error {
-    for i, item := range grain.Items {
-        if item.Id == req.ItemId {
-            grain.Items[i].SubscriptionDetailsId = req.DetailsId
-            grain.Items[i].OrderReference = req.OrderReference
-            grain.Items[i].IsSubscribed = true
-            return nil
-        }
-    }
-    return fmt.Errorf("item with ID %d not found", req.ItemId)
-}
-```
-
-**Registration**:
-```go
-actor.NewMutation(SubscriptionAdded, func() *messages.SubscriptionAdded {
-    return &messages.SubscriptionAdded{}
-}),
-```
-
-**Notes**: Assumes fields like `SubscriptionDetailsId`, `OrderReference`, `IsSubscribed` exist on items. Add to grain if needed.
-
-### PaymentDeclined
-
-**Purpose**: Marks the cart as having a declined payment, potentially updating status or flags.
-
-**Handler Implementation**:
-```go
-func PaymentDeclined(grain *CartGrain, req *messages.PaymentDeclined) error {
-    grain.PaymentStatus = "declined"
-    grain.PaymentDeclinedAt = time.Now()
-    // Optionally clear checkout order if in progress
-    if grain.CheckoutOrderId != "" {
-        grain.CheckoutOrderId = ""
-    }
-    return nil
-}
-```
-
-**Registration**:
-```go
-actor.NewMutation(PaymentDeclined, func() *messages.PaymentDeclined {
-    return &messages.PaymentDeclined{}
-}),
-```
-
-**Notes**: Assumes `PaymentStatus` and `PaymentDeclinedAt` fields. Add timestamps and status tracking to grain.
-
-### ConfirmationViewed
-
-**Purpose**: Records that the order confirmation has been viewed by the user. Applied automatically when the confirmation page is loaded in checkout_server.go.
-
-**Handler Implementation**:
-```go
-func ConfirmationViewed(grain *CartGrain, req *messages.ConfirmationViewed) error {
-    grain.ConfirmationViewCount++
-    grain.ConfirmationLastViewedAt = time.Now()
-    return nil
-}
-```
-
-**Registration**:
-```go
-actor.NewMutation(ConfirmationViewed, func() *messages.ConfirmationViewed {
-    return &messages.ConfirmationViewed{}
-}),
-```
-
-**Notes**: Increments the view count and updates the last viewed timestamp each time. Assumes `ConfirmationViewCount` and `ConfirmationLastViewedAt` fields.
-
-### CreateCheckoutOrder
-
-**Purpose**: Initiates the checkout process, validating terms and creating an order reference.
-
-**Handler Implementation**:
-```go
-func CreateCheckoutOrder(grain *CartGrain, req *messages.CreateCheckoutOrder) error {
-    if len(grain.Items) == 0 {
-        return errors.New("cannot checkout empty cart")
-    }
-    if req.Terms != "accepted" {
-        return errors.New("terms must be accepted")
-    }
-    // Validate other fields as needed
-    grain.CheckoutOrderId = generateOrderId()
-    grain.CheckoutStatus = "pending"
-    grain.CheckoutCountry = req.Country
-    return nil
-}
-```
-
-**Registration**:
-```go
-actor.NewMutation(CreateCheckoutOrder, func() *messages.CreateCheckoutOrder {
-    return &messages.CreateCheckoutOrder{}
-}).WithTotals(),
-```
-
-**Notes**: Use `WithTotals()` to recalculate totals after checkout initiation. Assumes order ID generation function.
-
-## Implementation Steps
-
-For each mutation:
-
-1. **Add Handler Function**: Implement in `pkg/cart/` (e.g., `cart_mutations.go`).
-2. **Register in Registry**: Add to `NewCartMultationRegistry()` in `cart-mutation-helper.go`.
-3. **Regenerate Proto**: Run `protoc` commands after any proto changes.
-4. **Add Tests**: Create unit tests in `pkg/cart/` testing the handler logic.
-5. **Add Endpoints** (if needed): For client-invokable mutations, add HTTP handlers in `cmd/cart/pool-server.go`. ConfirmationViewed is handled in `cmd/cart/checkout_server.go` when the confirmation page is viewed.
-6. **Update Grain Struct**: Add any new fields to `CartGrain` in `pkg/cart/grain.go`.
-7. **Run Tests**: Ensure `go test ./...` passes.
-
-## Testing Guidelines
-
-- Mock dependencies using interfaces.
-- Test error cases (e.g., invalid IDs, empty carts).
-- Verify state changes and totals recalculation.
-- Use table-driven tests for multiple scenarios.
-
-## Configuration and Testability
-
-Follow `MutationRegistry` and `SimpleGrainPool` patterns:
-- Use interfaces for external dependencies (e.g., ID generators).
-- Inject configurations via constructor parameters.
-- Avoid global state; make handlers pure functions where possible.

README.md

@@ -1,5 +1,36 @@
 # Go Cart Actor
 
+## Migration Notes (Ring-based Ownership Transition)
+
+This release removes the legacy ConfirmOwner ownership negotiation RPC in favor of deterministic ownership via the consistent hashing ring.
+
+Summary of changes:
+- ConfirmOwner RPC removed from the ControlPlane service.
+- OwnerChangeRequest message removed (was only used by ConfirmOwner).
+- OwnerChangeAck retained solely as the response type for the Closing RPC.
+- SyncedPool now relies exclusively on the ring for ownership (no quorum negotiation).
+- Remote proxy creation includes a bounded readiness retry to reduce first-call failures.
+- New Prometheus ring metrics: 
+  - cart_ring_epoch
+  - cart_ring_hosts
+  - cart_ring_vnodes
+  - cart_ring_host_share{host}
+  - cart_ring_lookup_local_total
+  - cart_ring_lookup_remote_total
+
+Action required for consumers:
+1. Regenerate protobuf code after pulling (requires protoc-gen-go and protoc-gen-go-grpc installed).
+2. Remove any client code or automation invoking ConfirmOwner (calls will now return UNIMPLEMENTED if using stale generated stubs).
+3. Update monitoring/alerts that referenced ConfirmOwner or ownership quorum failures—use ring metrics instead.
+4. If you previously interpreted “ownership flapping” via ConfirmOwner logs, now check for:
+   - Rapid changes in ring epoch (cart_ring_epoch)
+   - Host churn (cart_ring_hosts)
+   - Imbalance in vnode distribution (cart_ring_host_share)
+
+No data migration is necessary; cart IDs and grain state are unaffected.
+
+---
+
 A distributed cart management system using the actor model pattern.
 
 ## Prerequisites

api-tests/cart.http

@@ -1,6 +1,6 @@
 
 ### Add item to cart
-POST https://cart.k6n.net/api/12345
+POST https://cart.tornberg.me/api/12345
 Content-Type: application/json
 
 {
@@ -9,7 +9,7 @@ Content-Type: application/json
 }
 
 ### Update quanity of item in cart
-PUT https://cart.k6n.net/api/12345
+PUT https://cart.tornberg.me/api/12345
 Content-Type: application/json
 
 {
@@ -18,12 +18,12 @@ Content-Type: application/json
 }
 
 ### Delete item from cart
-DELETE https://cart.k6n.net/api/1002/1
+DELETE https://cart.tornberg.me/api/1002/1
 
 
 ### Set delivery
 
-POST https://cart.k6n.net/api/1002/delivery
+POST https://cart.tornberg.me/api/1002/delivery
 Content-Type: application/json
 
 {
@@ -33,8 +33,10 @@ Content-Type: application/json
 
 
 ### Get cart
-GET https://cart.k6n.net/api/12345
+GET https://cart.tornberg.me/api/12345
 
 
 ### Remove delivery method
-DELETE https://cart.k6n.net/api/12345/delivery/2
+DELETE https://cart.tornberg.me/api/12345/delivery/2
+
+

cmd/backoffice/fileserver.go

@@ -1,317 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io"
-	"io/fs"
-	"log"
-	"net/http"
-	"os"
-	"path/filepath"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
-
-	"git.tornberg.me/go-cart-actor/pkg/actor"
-	"git.tornberg.me/go-cart-actor/pkg/cart"
-	"github.com/gogo/protobuf/proto"
-)
-
-type FileServer struct {
-	// Define fields here
-	dataDir string
-	storage actor.LogStorage[cart.CartGrain]
-}
-
-func NewFileServer(dataDir string, storage actor.LogStorage[cart.CartGrain]) *FileServer {
-	return &FileServer{
-		dataDir: dataDir,
-		storage: storage,
-	}
-}
-
-func isValidId(id string) (uint64, bool) {
-	if nr, err := strconv.ParseUint(id, 10, 64); err == nil {
-		return nr, true
-	}
-	if nr, ok := cart.ParseCartId(id); ok {
-		return uint64(nr), true
-	}
-	return 0, false
-}
-
-func isValidFileId(name string) (uint64, bool) {
-
-	parts := strings.Split(name, ".")
-	if len(parts) > 1 && parts[1] == "events" {
-		idStr := parts[0]
-
-		return isValidId(idStr)
-	}
-	return 0, false
-}
-
-// func AccessTime(info os.FileInfo) (time.Time, bool) {
-// 	switch stat := info.Sys().(type) {
-// 	case *syscall.Stat_t:
-// 		// Linux: Atim; macOS/BSD: Atimespec
-// 		// Use reflection or build tags if naming differs.
-// 		// Linux:
-// 		if stat.Atim.Sec != 0 || stat.Atim.Nsec != 0 {
-// 			return time.Unix(int64(stat.Atim.Sec), int64(stat.Atim.Nsec)), true
-// 		}
-// 		// macOS/BSD example (uncomment if needed):
-// 		//return time.Unix(int64(stat.Atimespec.Sec), int64(stat.Atimespec.Nsec)), true
-// 	}
-// 	return time.Time{}, false
-// }
-
-func appendFileInfo(info fs.FileInfo, out *CartFileInfo) *CartFileInfo {
-	//sys := info.Sys()
-	//fmt.Printf("sys type %T", sys)
-	out.Size = info.Size()
-	out.Modified = info.ModTime()
-	//out.Accessed, _ = AccessTime(info)
-	return out
-}
-
-// var cartFileRe = regexp.MustCompile(`^(\d+)\.events\.log$`)
-
-func listCartFiles(dir string) ([]*CartFileInfo, error) {
-	entries, err := os.ReadDir(dir)
-	if err != nil {
-		if errors.Is(err, os.ErrNotExist) {
-			return []*CartFileInfo{}, nil
-		}
-		return nil, err
-	}
-	out := make([]*CartFileInfo, 0)
-	for _, e := range entries {
-		if e.IsDir() {
-			continue
-		}
-		id, valid := isValidFileId(e.Name())
-		if !valid {
-			continue
-		}
-
-		info, err := e.Info()
-		if err != nil {
-			continue
-		}
-		info.Sys()
-		out = append(out, appendFileInfo(info, &CartFileInfo{
-			ID:     fmt.Sprintf("%d", id),
-			CartId: cart.CartId(id),
-		}))
-	}
-	return out, nil
-}
-
-func readRawLogLines(path string) ([]json.RawMessage, error) {
-	fh, err := os.Open(path)
-	if err != nil {
-		return nil, err
-	}
-	defer fh.Close()
-	lines := make([]json.RawMessage, 0, 64)
-	s := bufio.NewScanner(fh)
-	// increase buffer to handle larger JSON lines
-	buf := make([]byte, 0, 1024*1024)
-	s.Buffer(buf, 1024*1024)
-	for s.Scan() {
-		line := s.Bytes()
-		if line == nil {
-			continue
-		}
-		lines = append(lines, line)
-	}
-	if err := s.Err(); err != nil {
-		return nil, err
-	}
-	return lines, nil
-}
-
-func writeJSON(w http.ResponseWriter, status int, v any) {
-	w.Header().Set("Content-Type", "application/json")
-	w.Header().Set("Cache-Control", "no-cache")
-	w.WriteHeader(status)
-	_ = json.NewEncoder(w).Encode(v)
-}
-
-func (fs *FileServer) CartsHandler(w http.ResponseWriter, r *http.Request) {
-	list, err := listCartFiles(fs.dataDir)
-	if err != nil {
-		writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
-		return
-	}
-	// sort by modified desc
-	sort.Slice(list, func(i, j int) bool { return list[i].Modified.After(list[j].Modified) })
-
-	writeJSON(w, http.StatusOK, map[string]any{
-		"count": len(list),
-		"carts": list,
-	})
-}
-
-func (fs *FileServer) PromotionsHandler(w http.ResponseWriter, r *http.Request) {
-	fileName := filepath.Join(fs.dataDir, "promotions.json")
-	if r.Method == http.MethodGet {
-		file, err := os.Open(fileName)
-		if err != nil {
-			writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
-			return
-		}
-		defer file.Close()
-
-		io.Copy(w, file)
-		return
-	}
-	if r.Method == http.MethodPost {
-		file, err := os.Create(fileName)
-		if err != nil {
-			writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
-			return
-		}
-		defer file.Close()
-
-		io.Copy(file, r.Body)
-		return
-	}
-
-	w.WriteHeader(http.StatusMethodNotAllowed)
-}
-
-func (fs *FileServer) VoucherHandler(w http.ResponseWriter, r *http.Request) {
-	fileName := filepath.Join(fs.dataDir, "vouchers.json")
-	if r.Method == http.MethodGet {
-		file, err := os.Open(fileName)
-		if err != nil {
-			writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
-			return
-		}
-		defer file.Close()
-
-		io.Copy(w, file)
-		return
-	}
-	if r.Method == http.MethodPost {
-		file, err := os.Create(fileName)
-		if err != nil {
-			writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
-			return
-		}
-		defer file.Close()
-
-		io.Copy(file, r.Body)
-		return
-	}
-
-	w.WriteHeader(http.StatusMethodNotAllowed)
-}
-
-func (fs *FileServer) PromotionPartHandler(w http.ResponseWriter, r *http.Request) {
-	idStr := r.PathValue("id")
-	if idStr == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		fmt.Fprintf(w, "missing id")
-		return
-	}
-	_, ok := isValidId(idStr)
-	if !ok {
-		w.WriteHeader(http.StatusBadRequest)
-		fmt.Fprintf(w, "invalid id %s", idStr)
-		return
-	}
-	w.WriteHeader(http.StatusNotImplemented)
-}
-
-type JsonError struct {
-	Error string `json:"error"`
-}
-
-func acceptAll(_ proto.Message, _ int, _ time.Time) bool {
-	return true
-}
-
-func acceptUntilIndex(maxIndex int) func(msg proto.Message, index int, when time.Time) bool {
-	return func(msg proto.Message, index int, when time.Time) bool {
-		return index < maxIndex
-	}
-}
-
-func acceptUntilTimestamp(until time.Time) func(msg proto.Message, index int, when time.Time) bool {
-	return func(msg proto.Message, index int, when time.Time) bool {
-		return when.Before(until)
-	}
-}
-
-func (fs *FileServer) CartHandler(w http.ResponseWriter, r *http.Request) {
-	idStr := r.PathValue("id")
-	if idStr == "" {
-		writeJSON(w, http.StatusBadRequest, JsonError{Error: "missing id"})
-		return
-	}
-	id, ok := isValidId(idStr)
-	if !ok {
-		writeJSON(w, http.StatusBadRequest, JsonError{Error: "invalid id"})
-		return
-	}
-	// parse query parameters for filtering
-	query := r.URL.Query()
-	filterFunction := acceptAll
-	if maxIndexStr := query.Get("maxIndex"); maxIndexStr != "" {
-		log.Printf("filter maxIndex: %s", maxIndexStr)
-		maxIndex, err := strconv.Atoi(maxIndexStr)
-		if err != nil {
-			writeJSON(w, http.StatusBadRequest, JsonError{Error: "invalid maxIndex"})
-			return
-		}
-		filterFunction = acceptUntilIndex(maxIndex)
-	} else if untilStr := query.Get("until"); untilStr != "" {
-		log.Printf("filter until: %s", untilStr)
-		until, err := time.Parse(time.RFC3339, untilStr)
-		if err != nil {
-			writeJSON(w, http.StatusBadRequest, JsonError{Error: "invalid until timestamp"})
-			return
-		}
-		filterFunction = acceptUntilTimestamp(until)
-	}
-	// reconstruct state from event log if present
-	grain := cart.NewCartGrain(id, time.Now())
-	err := fs.storage.LoadEventsFunc(r.Context(), id, grain, filterFunction)
-	if err != nil {
-		writeJSON(w, http.StatusInternalServerError, JsonError{Error: err.Error()})
-		return
-	}
-
-	path := filepath.Join(fs.dataDir, fmt.Sprintf("%d.events.log", id))
-	info, err := os.Stat(path)
-	if err != nil && errors.Is(err, os.ErrNotExist) {
-		writeJSON(w, http.StatusNotFound, JsonError{Error: "cart not found"})
-		return
-	} else if err != nil {
-		writeJSON(w, http.StatusInternalServerError, JsonError{Error: err.Error()})
-		return
-	}
-	lines, err := readRawLogLines(path)
-	if err != nil {
-		writeJSON(w, http.StatusInternalServerError, JsonError{Error: err.Error()})
-		return
-	}
-	writeJSON(w, http.StatusOK, map[string]any{
-		"id":        id,
-		"cartId":    cart.CartId(id).String(),
-		"state":     grain,
-		"mutations": lines,
-		"meta": map[string]any{
-			"size":     info.Size(),
-			"modified": info.ModTime(),
-			"path":     path,
-		},
-	})
-}

cmd/backoffice/fileserver_test.go

@@ -1,89 +0,0 @@
-package main
-
-import (
-	"math/rand"
-	"os"
-	"path/filepath"
-	"testing"
-	"time"
-
-	"git.tornberg.me/go-cart-actor/pkg/cart"
-)
-
-// TestAppendFileInfoRandomProjectFile picks a random existing .go source file in the
-// repository (from a small curated list to keep the test hermetic) and verifies
-// that appendFileInfo populates Size, Modified and System without mutating the
-// identity fields (ID, CartId). The randomness is only to satisfy the requirement
-// of using "a random project file"; the test behavior is deterministic enough for
-// CI because all chosen files are expected to exist.
-func TestAppendFileInfoRandomProjectFile(t *testing.T) {
-	candidates := []string{
-		filepath.FromSlash("../../pkg/cart/cart_id.go"),
-		filepath.FromSlash("../../pkg/actor/grain.go"),
-		filepath.FromSlash("../../cmd/cart/main.go"),
-	}
-	// Pick one at random.
-	rand.Seed(time.Now().UnixNano())
-	path := candidates[rand.Intn(len(candidates))]
-
-	info, err := os.Stat(path)
-	if err != nil {
-		t.Fatalf("stat failed for %s: %v", path, err)
-	}
-
-	// Pre-populate a CartFileInfo with identity fields.
-	origID := "test-id"
-	origCartId := cart.CartId(12345)
-	cf := &CartFileInfo{ID: origID, CartId: origCartId}
-
-	// Call function under test.
-	got := appendFileInfo(info, cf)
-
-	if got != cf {
-		t.Fatalf("appendFileInfo should return the same pointer instance")
-	}
-
-	if cf.ID != origID {
-		t.Fatalf("ID mutated: expected %q got %q", origID, cf.ID)
-	}
-	if cf.CartId != origCartId {
-		t.Fatalf("CartId mutated: expected %v got %v", origCartId, cf.CartId)
-	}
-
-	if cf.Size != info.Size() {
-		t.Fatalf("Size mismatch: expected %d got %d", info.Size(), cf.Size)
-	}
-
-	mod := info.ModTime()
-	// Allow small clock skew / coarse timestamp truncation.
-	if cf.Modified.Before(mod.Add(-2*time.Second)) || cf.Modified.After(mod.Add(2*time.Second)) {
-		t.Fatalf("Modified not within expected range: want ~%v got %v", mod, cf.Modified)
-	}
-
-}
-
-// TestAppendFileInfoTempFile creates a temporary file to ensure Size and Modified
-// are updated for a freshly written file with known content length.
-func TestAppendFileInfoTempFile(t *testing.T) {
-	dir := t.TempDir()
-	path := filepath.Join(dir, "temp.events.log")
-	content := []byte("hello world\nanother line\n")
-	if err := os.WriteFile(path, content, 0644); err != nil {
-		t.Fatalf("write temp file failed: %v", err)
-	}
-
-	info, err := os.Stat(path)
-	if err != nil {
-		t.Fatalf("stat temp file failed: %v", err)
-	}
-
-	cf := &CartFileInfo{ID: "temp", CartId: cart.CartId(0)}
-	appendFileInfo(info, cf)
-
-	if cf.Size != int64(len(content)) {
-		t.Fatalf("expected Size %d got %d", len(content), cf.Size)
-	}
-	if cf.Modified.IsZero() {
-		t.Fatalf("Modified should be set")
-	}
-}

cmd/backoffice/hub.go

@@ -1,248 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"crypto/sha1"
-	"encoding/base64"
-	"encoding/binary"
-	"io"
-	"net"
-	"net/http"
-	"strings"
-	"time"
-)
-
-// Hub manages websocket clients and broadcasts messages to them.
-type Hub struct {
-	register   chan *Client
-	unregister chan *Client
-	broadcast  chan []byte
-	clients    map[*Client]bool
-}
-
-// Client represents a single websocket client connection.
-type Client struct {
-	hub  *Hub
-	conn net.Conn
-	send chan []byte
-}
-
-// NewHub constructs a new Hub instance.
-func NewHub() *Hub {
-	return &Hub{
-		register:   make(chan *Client),
-		unregister: make(chan *Client),
-		broadcast:  make(chan []byte, 1024),
-		clients:    make(map[*Client]bool),
-	}
-}
-
-// Run starts the hub event loop.
-func (h *Hub) Run() {
-	for {
-		select {
-		case c := <-h.register:
-			h.clients[c] = true
-		case c := <-h.unregister:
-			if _, ok := h.clients[c]; ok {
-				delete(h.clients, c)
-				close(c.send)
-				_ = c.conn.Close()
-			}
-		case msg := <-h.broadcast:
-			for c := range h.clients {
-				select {
-				case c.send <- msg:
-				default:
-					// Client is slow or dead; drop it.
-					delete(h.clients, c)
-					close(c.send)
-					_ = c.conn.Close()
-				}
-			}
-		}
-	}
-}
-
-// computeAccept computes the Sec-WebSocket-Accept header value.
-func computeAccept(key string) string {
-	const magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
-	h := sha1.New()
-	h.Write([]byte(key + magic))
-	return base64.StdEncoding.EncodeToString(h.Sum(nil))
-}
-
-// ServeWS upgrades the HTTP request to a WebSocket connection and registers a client.
-func (h *Hub) ServeWS(w http.ResponseWriter, r *http.Request) {
-	if !strings.Contains(strings.ToLower(r.Header.Get("Connection")), "upgrade") || strings.ToLower(r.Header.Get("Upgrade")) != "websocket" {
-		http.Error(w, "upgrade required", http.StatusBadRequest)
-		return
-	}
-	key := r.Header.Get("Sec-WebSocket-Key")
-	if key == "" {
-		http.Error(w, "missing Sec-WebSocket-Key", http.StatusBadRequest)
-		return
-	}
-	accept := computeAccept(key)
-
-	hj, ok := w.(http.Hijacker)
-	if !ok {
-		http.Error(w, "websocket not supported", http.StatusInternalServerError)
-		return
-	}
-	conn, buf, err := hj.Hijack()
-	if err != nil {
-		return
-	}
-
-	// Write the upgrade response
-	response := "HTTP/1.1 101 Switching Protocols\r\n" +
-		"Upgrade: websocket\r\n" +
-		"Connection: Upgrade\r\n" +
-		"Sec-WebSocket-Accept: " + accept + "\r\n" +
-		"\r\n"
-	if _, err := buf.WriteString(response); err != nil {
-		_ = conn.Close()
-		return
-	}
-	if err := buf.Flush(); err != nil {
-		_ = conn.Close()
-		return
-	}
-
-	client := &Client{
-		hub:  h,
-		conn: conn,
-		send: make(chan []byte, 256),
-	}
-	h.register <- client
-	go client.writePump()
-	go client.readPump()
-}
-
-// writeWSFrame writes a single WebSocket frame to the writer.
-func writeWSFrame(w io.Writer, opcode byte, payload []byte) error {
-	// FIN set, opcode as provided
-	header := []byte{0x80 | (opcode & 0x0F)}
-	l := len(payload)
-	switch {
-	case l < 126:
-		header = append(header, byte(l))
-	case l <= 65535:
-		ext := make([]byte, 2)
-		binary.BigEndian.PutUint16(ext, uint16(l))
-		header = append(header, 126)
-		header = append(header, ext...)
-	default:
-		ext := make([]byte, 8)
-		binary.BigEndian.PutUint64(ext, uint64(l))
-		header = append(header, 127)
-		header = append(header, ext...)
-	}
-	if _, err := w.Write(header); err != nil {
-		return err
-	}
-	if l > 0 {
-		if _, err := w.Write(payload); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// readPump handles control frames from the client and discards other incoming frames.
-// This server is broadcast-only to clients.
-func (c *Client) readPump() {
-	defer func() {
-		c.hub.unregister <- c
-	}()
-	reader := bufio.NewReader(c.conn)
-	for {
-		// Read first two bytes
-		b1, err := reader.ReadByte()
-		if err != nil {
-			return
-		}
-		b2, err := reader.ReadByte()
-		if err != nil {
-			return
-		}
-		opcode := b1 & 0x0F
-		masked := (b2 & 0x80) != 0
-		length := int64(b2 & 0x7F)
-		if length == 126 {
-			ext := make([]byte, 2)
-			if _, err := io.ReadFull(reader, ext); err != nil {
-				return
-			}
-			length = int64(binary.BigEndian.Uint16(ext))
-		} else if length == 127 {
-			ext := make([]byte, 8)
-			if _, err := io.ReadFull(reader, ext); err != nil {
-				return
-			}
-			length = int64(binary.BigEndian.Uint64(ext))
-		}
-		var maskKey [4]byte
-		if masked {
-			if _, err := io.ReadFull(reader, maskKey[:]); err != nil {
-				return
-			}
-		}
-
-		// Handle Ping -> Pong
-		if opcode == 0x9 && length <= 125 {
-			payload := make([]byte, length)
-			if _, err := io.ReadFull(reader, payload); err != nil {
-				return
-			}
-			// Unmask if masked
-			if masked {
-				for i := int64(0); i < length; i++ {
-					payload[i] ^= maskKey[i%4]
-				}
-			}
-			_ = writeWSFrame(c.conn, 0xA, payload) // best-effort pong
-			continue
-		}
-
-		// Close frame
-		if opcode == 0x8 {
-			// Drain payload if any, then exit
-			if _, err := io.CopyN(io.Discard, reader, length); err != nil {
-				return
-			}
-			return
-		}
-
-		// For other frames, just discard payload
-		if _, err := io.CopyN(io.Discard, reader, length); err != nil {
-			return
-		}
-	}
-}
-
-// writePump sends queued messages to the client and pings periodically to keep the connection alive.
-func (c *Client) writePump() {
-	ticker := time.NewTicker(30 * time.Second)
-	defer func() {
-		ticker.Stop()
-		_ = c.conn.Close()
-	}()
-	for {
-		select {
-		case msg, ok := <-c.send:
-			if !ok {
-				// try to send close frame
-				_ = writeWSFrame(c.conn, 0x8, nil)
-				return
-			}
-			if err := writeWSFrame(c.conn, 0x1, msg); err != nil {
-				return
-			}
-		case <-ticker.C:
-			// Send a ping to keep connections alive behind proxies
-			_ = writeWSFrame(c.conn, 0x9, []byte("ping"))
-		}
-	}
-}

cmd/backoffice/main.go

@@ -1,152 +1,5 @@
 package main
 
-import (
-	"context"
-	"errors"
-	"log"
-	"net/http"
-	"os"
-	"time"
-
-	actor "git.tornberg.me/go-cart-actor/pkg/actor"
-	"git.tornberg.me/go-cart-actor/pkg/cart"
-	"github.com/matst80/slask-finder/pkg/messaging"
-	amqp "github.com/rabbitmq/amqp091-go"
-)
-
-type CartFileInfo struct {
-	ID       string      `json:"id"`
-	CartId   cart.CartId `json:"cartId"`
-	Size     int64       `json:"size"`
-	Modified time.Time   `json:"modified"`
-}
-
-func envOrDefault(key, def string) string {
-	if v := os.Getenv(key); v != "" {
-		return v
-	}
-	return def
-}
-
-func startMutationConsumer(ctx context.Context, conn *amqp.Connection, hub *Hub) error {
-	ch, err := conn.Channel()
-	if err != nil {
-		_ = conn.Close()
-		return err
-	}
-	msgs, err := messaging.DeclareBindAndConsume(ch, "cart", "mutation")
-	if err != nil {
-		_ = ch.Close()
-		return err
-	}
-
-	go func() {
-		defer ch.Close()
-
-		for {
-			select {
-			case <-ctx.Done():
-				return
-			case m, ok := <-msgs:
-				if !ok {
-					log.Fatalf("connection closed")
-					continue
-				}
-				// Log and broadcast to all websocket clients
-				log.Printf("mutation event: %s", string(m.Body))
-
-				if hub != nil {
-					select {
-					case hub.broadcast <- m.Body:
-					default:
-						// if hub queue is full, drop to avoid blocking
-					}
-				}
-				if err := m.Ack(false); err != nil {
-					log.Printf("error acknowledging message: %v", err)
-				}
-			}
-		}
-	}()
-	return nil
-}
-
 func main() {
-	dataDir := envOrDefault("DATA_DIR", "data")
-	addr := envOrDefault("ADDR", ":8080")
-	amqpURL := os.Getenv("AMQP_URL")
-
-	_ = os.MkdirAll(dataDir, 0755)
-
-	reg := cart.NewCartMultationRegistry()
-	diskStorage := actor.NewDiskStorage[cart.CartGrain](dataDir, reg)
-
-	fs := NewFileServer(dataDir, diskStorage)
-
-	hub := NewHub()
-	go hub.Run()
-
-	mux := http.NewServeMux()
-	mux.HandleFunc("GET /carts", fs.CartsHandler)
-	mux.HandleFunc("GET /cart/{id}", fs.CartHandler)
-	mux.HandleFunc("/promotions", fs.PromotionsHandler)
-	mux.HandleFunc("/vouchers", fs.VoucherHandler)
-	mux.HandleFunc("/promotion/{id}", fs.PromotionPartHandler)
-
-	mux.HandleFunc("/ws", hub.ServeWS)
-	mux.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		_, _ = w.Write([]byte("ok"))
-	})
-	mux.HandleFunc("/readyz", func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		_, _ = w.Write([]byte("ok"))
-	})
-	mux.HandleFunc("/livez", func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		_, _ = w.Write([]byte("ok"))
-	})
-
-	// Global CORS middleware allowing all origins and handling preflight
-	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Access-Control-Allow-Origin", "*")
-		w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, PATCH, DELETE, OPTIONS")
-		w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization, X-Requested-With")
-		w.Header().Set("Access-Control-Expose-Headers", "*")
-		if r.Method == http.MethodOptions {
-			w.WriteHeader(http.StatusNoContent)
-			return
-		}
-		mux.ServeHTTP(w, r)
-	})
-
-	srv := &http.Server{
-		Addr:         addr,
-		Handler:      handler,
-		ReadTimeout:  15 * time.Second,
-		WriteTimeout: 30 * time.Second,
-		IdleTimeout:  60 * time.Second,
-	}
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	if amqpURL != "" {
-		conn, err := amqp.Dial(amqpURL)
-		if err != nil {
-			log.Fatalf("failed to connect to RabbitMQ: %v", err)
-		}
-		if err := startMutationConsumer(ctx, conn, hub); err != nil {
-			log.Printf("AMQP listener disabled: %v", err)
-		} else {
-			log.Printf("AMQP listener connected")
-		}
-	}
-
-	log.Printf("backoffice HTTP listening on %s (dataDir=%s)", addr, dataDir)
-	if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
-		log.Fatalf("http server error: %v", err)
-	}
-
-	// server stopped
+	// Your code here
 }

cmd/cart/amqp-order-handler.go

@@ -9,56 +9,53 @@ import (
 )
 
 type AmqpOrderHandler struct {
-	conn  *amqp.Connection
-	queue *amqp.Queue
+	Url        string
+	Connection *amqp.Connection
+	Channel    *amqp.Channel
 }
 
-func NewAmqpOrderHandler(conn *amqp.Connection) *AmqpOrderHandler {
-	return &AmqpOrderHandler{
-		conn: conn,
+func (h *AmqpOrderHandler) Connect() error {
+	conn, err := amqp.Dial(h.Url)
+	if err != nil {
+		return fmt.Errorf("failed to connect to RabbitMQ: %w", err)
 	}
-}
+	h.Connection = conn
 
-func (h *AmqpOrderHandler) DefineQueue() error {
-	ch, err := h.conn.Channel()
+	ch, err := conn.Channel()
 	if err != nil {
 		return fmt.Errorf("failed to open a channel: %w", err)
 	}
-	defer ch.Close()
+	h.Channel = ch
 
-	queue, err := ch.QueueDeclare(
-		"order-queue", // name
-		false,
-		false,
-		false,
-		false,
-		nil,
-	)
-	if err != nil {
-		return fmt.Errorf("failed to declare an exchange: %w", err)
+	return nil
+}
+
+func (h *AmqpOrderHandler) Close() error {
+	if h.Channel != nil {
+		h.Channel.Close()
+	}
+	if h.Connection != nil {
+		return h.Connection.Close()
 	}
-	h.queue = &queue
 	return nil
 }
 
 func (h *AmqpOrderHandler) OrderCompleted(body []byte) error {
-	ch, err := h.conn.Channel()
-	if err != nil {
-		return fmt.Errorf("failed to open a channel: %w", err)
-	}
-	defer ch.Close()
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	return ch.PublishWithContext(ctx,
-		"",           // exchange
-		h.queue.Name, // routing key
-		false,        // mandatory
-		false,        // immediate
+	err := h.Channel.PublishWithContext(ctx,
+		"orders", // exchange
+		"new",    // routing key
+		false,    // mandatory
+		false,    // immediate
 		amqp.Publishing{
-			//DeliveryMode: amqp.,
 			ContentType: "application/json",
 			Body:        body,
 		})
+	if err != nil {
+		return fmt.Errorf("failed to publish a message: %w", err)
+	}
 
+	return nil
 }

cmd/cart/cart-grain.go

@@ -0,0 +1,268 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"slices"
+	"sync"
+	"time"
+
+	messages "git.tornberg.me/go-cart-actor/pkg/messages"
+	"git.tornberg.me/go-cart-actor/pkg/voucher"
+)
+
+// Legacy padded [16]byte CartId and its helper methods removed.
+// Unified CartId (uint64 with base62 string form) now defined in cart_id.go.
+
+type StockStatus int
+
+type ItemMeta struct {
+	Name       string  `json:"name"`
+	Brand      string  `json:"brand,omitempty"`
+	Category   string  `json:"category,omitempty"`
+	Category2  string  `json:"category2,omitempty"`
+	Category3  string  `json:"category3,omitempty"`
+	Category4  string  `json:"category4,omitempty"`
+	Category5  string  `json:"category5,omitempty"`
+	SellerId   string  `json:"sellerId,omitempty"`
+	SellerName string  `json:"sellerName,omitempty"`
+	Image      string  `json:"image,omitempty"`
+	Outlet     *string `json:"outlet,omitempty"`
+}
+
+type CartItem struct {
+	Id          uint32      `json:"id"`
+	ItemId      uint32      `json:"itemId,omitempty"`
+	ParentId    uint32      `json:"parentId,omitempty"`
+	Sku         string      `json:"sku"`
+	Price       Price       `json:"price"`
+	TotalPrice  Price       `json:"totalPrice"`
+	OrgPrice    *Price      `json:"orgPrice,omitempty"`
+	Stock       StockStatus `json:"stock"`
+	Quantity    int         `json:"qty"`
+	Discount    *Price      `json:"discount,omitempty"`
+	Disclaimer  string      `json:"disclaimer,omitempty"`
+	ArticleType string      `json:"type,omitempty"`
+	StoreId     *string     `json:"storeId,omitempty"`
+	Meta        *ItemMeta   `json:"meta,omitempty"`
+}
+
+type CartDelivery struct {
+	Id          uint32                `json:"id"`
+	Provider    string                `json:"provider"`
+	Price       Price                 `json:"price"`
+	Items       []uint32              `json:"items"`
+	PickupPoint *messages.PickupPoint `json:"pickupPoint,omitempty"`
+}
+
+type CartNotification struct {
+	LinkedId int    `json:"id"`
+	Provider string `json:"provider"`
+	Title    string `json:"title"`
+	Content  string `json:"content"`
+}
+
+type CartGrain struct {
+	mu                sync.RWMutex
+	lastItemId        uint32
+	lastDeliveryId    uint32
+	lastVoucherId     uint32
+	lastAccess        time.Time
+	lastChange        time.Time // unix seconds of last successful mutation (replay sets from event ts)
+	userId            string
+	Id                CartId             `json:"id"`
+	Items             []*CartItem        `json:"items"`
+	TotalPrice        *Price             `json:"totalPrice"`
+	TotalDiscount     *Price             `json:"totalDiscount"`
+	Deliveries        []*CartDelivery    `json:"deliveries,omitempty"`
+	Processing        bool               `json:"processing"`
+	PaymentInProgress bool               `json:"paymentInProgress"`
+	OrderReference    string             `json:"orderReference,omitempty"`
+	PaymentStatus     string             `json:"paymentStatus,omitempty"`
+	Vouchers          []*Voucher         `json:"vouchers,omitempty"`
+	Notifications     []CartNotification `json:"cartNotification,omitempty"`
+}
+
+type Voucher struct {
+	Code  string                  `json:"code"`
+	Rules []*messages.VoucherRule `json:"rules"`
+	Id    uint32                  `json:"id"`
+	Value int64                   `json:"value"`
+}
+
+func (v *Voucher) AppliesTo(cart *CartGrain) ([]*CartItem, bool) {
+	// No rules -> applies to entire cart
+	if len(v.Rules) == 0 {
+		return cart.Items, true
+	}
+
+	// Build evaluation context once
+	ctx := voucher.EvalContext{
+		Items:        make([]voucher.Item, 0, len(cart.Items)),
+		CartTotalInc: 0,
+	}
+
+	if cart.TotalPrice != nil {
+		ctx.CartTotalInc = cart.TotalPrice.IncVat
+	}
+
+	for _, it := range cart.Items {
+		category := ""
+		if it.Meta != nil {
+			category = it.Meta.Category
+		}
+		ctx.Items = append(ctx.Items, voucher.Item{
+			Sku:       it.Sku,
+			Category:  category,
+			UnitPrice: it.Price.IncVat,
+		})
+	}
+
+	// All voucher rules must pass (logical AND)
+	for _, rule := range v.Rules {
+		expr := rule.GetCondition()
+		if expr == "" {
+			// Empty condition treated as pass (acts like a comment / placeholder)
+			continue
+		}
+		rs, err := voucher.ParseRules(expr)
+		if err != nil {
+			// Fail closed on parse error
+			return nil, false
+		}
+		if !rs.Applies(ctx) {
+			return nil, false
+		}
+	}
+
+	return cart.Items, true
+}
+
+func (c *CartGrain) GetId() uint64 {
+	return uint64(c.Id)
+}
+
+func (c *CartGrain) GetLastChange() time.Time {
+	return c.lastChange
+}
+
+func (c *CartGrain) GetLastAccess() time.Time {
+	return c.lastAccess
+}
+
+func (c *CartGrain) GetCurrentState() (*CartGrain, error) {
+	c.lastAccess = time.Now()
+	return c, nil
+}
+
+func getInt(data float64, ok bool) (int, error) {
+	if !ok {
+		return 0, fmt.Errorf("invalid type")
+	}
+	return int(data), nil
+}
+
+// func (c *CartGrain) AddItem(sku string, qty int, country string, storeId *string) (*CartGrain, error) {
+// 	cartItem, err := getItemData(sku, qty, country)
+// 	if err != nil {
+// 		return nil, err
+// 	}
+// 	cartItem.StoreId = storeId
+// 	return c.Apply(cartItem, false)
+// }
+
+func (c *CartGrain) GetState() ([]byte, error) {
+	return json.Marshal(c)
+}
+
+func (c *CartGrain) ItemsWithDelivery() []uint32 {
+	ret := make([]uint32, 0, len(c.Items))
+	for _, item := range c.Items {
+		for _, delivery := range c.Deliveries {
+			for _, id := range delivery.Items {
+				if item.Id == id {
+					ret = append(ret, id)
+				}
+			}
+		}
+	}
+	return ret
+}
+
+func (c *CartGrain) ItemsWithoutDelivery() []uint32 {
+	ret := make([]uint32, 0, len(c.Items))
+	hasDelivery := c.ItemsWithDelivery()
+	for _, item := range c.Items {
+		found := slices.Contains(hasDelivery, item.Id)
+
+		if !found {
+			ret = append(ret, item.Id)
+		}
+	}
+	return ret
+}
+
+func (c *CartGrain) FindItemWithSku(sku string) (*CartItem, bool) {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	for _, item := range c.Items {
+		if item.Sku == sku {
+			return item, true
+		}
+	}
+	return nil, false
+}
+
+// func (c *CartGrain) Apply(content proto.Message, isReplay bool) (*CartGrain, error) {
+
+// 	updated, err := ApplyRegistered(c, content)
+// 	if err != nil {
+// 		if err == ErrMutationNotRegistered {
+// 			return nil, fmt.Errorf("unsupported mutation type %T (not registered)", content)
+// 		}
+// 		return nil, err
+// 	}
+
+// 	// Sliding TTL: update lastChange only for non-replay successful mutations.
+// 	if updated != nil && !isReplay {
+// 		c.lastChange = time.Now()
+// 		c.lastAccess = time.Now()
+// 		go AppendCartEvent(c.Id, content)
+// 	}
+
+// 	return updated, nil
+// }
+
+func (c *CartGrain) UpdateTotals() {
+	c.TotalPrice = NewPrice()
+	c.TotalDiscount = NewPrice()
+
+	for _, item := range c.Items {
+		rowTotal := MultiplyPrice(item.Price, int64(item.Quantity))
+
+		item.TotalPrice = *rowTotal
+
+		c.TotalPrice.Add(*rowTotal)
+
+		if item.OrgPrice != nil {
+			diff := NewPrice()
+			diff.Add(*item.OrgPrice)
+			diff.Subtract(item.Price)
+			if diff.IncVat > 0 {
+				c.TotalDiscount.Add(*diff)
+			}
+		}
+
+	}
+	for _, delivery := range c.Deliveries {
+		c.TotalPrice.Add(delivery.Price)
+	}
+	for _, voucher := range c.Vouchers {
+		if _, ok := voucher.AppliesTo(c); ok {
+			value := NewPriceFromIncVat(voucher.Value, 25)
+
+			c.TotalDiscount.Add(*value)
+			c.TotalPrice.Subtract(*value)
+		}
+	}
+}

cmd/cart/cart_grain_totals_test.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"testing"
@@ -34,8 +34,8 @@ func TestCartGrainUpdateTotalsBasic(t *testing.T) {
 	}
 
 	// Discount: current implementation computes (OrgPrice - Price) ignoring quantity -> 1500-1250=250
-	if c.TotalDiscount.IncVat != 500 {
-		t.Fatalf("TotalDiscount expected 500 got %d", c.TotalDiscount.IncVat)
+	if c.TotalDiscount.IncVat != 250 {
+		t.Fatalf("TotalDiscount expected 250 got %d", c.TotalDiscount.IncVat)
 	}
 }
 

cmd/cart/cart_id.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"crypto/rand"

cmd/cart/cart_id_test.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"encoding/json"

cmd/cart/checkout_builder.go

@@ -3,8 +3,6 @@ package main
 import (
 	"encoding/json"
 	"fmt"
-
-	"git.tornberg.me/go-cart-actor/pkg/cart"
 )
 
 // CheckoutMeta carries the external / URL metadata required to build a
@@ -14,6 +12,8 @@ type CheckoutMeta struct {
 	Terms        string
 	Checkout     string
 	Confirmation string
+	Validation   string
+	Push         string
 	Country      string
 	Currency     string // optional override (defaults to "SEK" if empty)
 	Locale       string // optional override (defaults to "sv-se" if empty)
@@ -33,7 +33,7 @@ type CheckoutMeta struct {
 //
 // If you later need to support different tax rates per line, you can extend
 // CartItem / Delivery to expose that data and propagate it here.
-func BuildCheckoutOrderPayload(grain *cart.CartGrain, meta *CheckoutMeta) ([]byte, *CheckoutOrder, error) {
+func BuildCheckoutOrderPayload(grain *CartGrain, meta *CheckoutMeta) ([]byte, *CheckoutOrder, error) {
 	if grain == nil {
 		return nil, nil, fmt.Errorf("nil grain")
 	}
@@ -67,7 +67,7 @@ func BuildCheckoutOrderPayload(grain *cart.CartGrain, meta *CheckoutMeta) ([]byt
 			Name:           it.Meta.Name,
 			Quantity:       it.Quantity,
 			UnitPrice:      int(it.Price.IncVat),
-			TaxRate:        it.Tax, // TODO: derive if variable tax rates are introduced
+			TaxRate:        2500, // TODO: derive if variable tax rates are introduced
 			QuantityUnit:   "st",
 			TotalAmount:    int(it.TotalPrice.IncVat),
 			TotalTaxAmount: int(it.TotalPrice.TotalVat()),
@@ -105,9 +105,8 @@ func BuildCheckoutOrderPayload(grain *cart.CartGrain, meta *CheckoutMeta) ([]byt
 			Terms:        meta.Terms,
 			Checkout:     meta.Checkout,
 			Confirmation: meta.Confirmation,
-			Notification: "https://cart.k6n.net/notification",
-			Validation:   "https://cart.k6n.net/validate",
-			Push:         "https://cart.k6n.net/push?order_id={checkout.order.id}",
+			Validation:   meta.Validation,
+			Push:         meta.Push,
 		},
 	}
 

cmd/cart/checkout_server.go

@@ -1,209 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"log"
-	"net/http"
-	"time"
-
-	"git.tornberg.me/go-cart-actor/pkg/actor"
-	"git.tornberg.me/go-cart-actor/pkg/cart"
-	"git.tornberg.me/go-cart-actor/pkg/messages"
-	"git.tornberg.me/mats/go-redis-inventory/pkg/inventory"
-	amqp "github.com/rabbitmq/amqp091-go"
-)
-
-var tpl = `<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>s10r testing - checkout</title>
-  </head>
-
-  <body>
-    %s
-  </body>
-</html>
-`
-
-func (a *App) getGrainFromOrder(ctx context.Context, order *CheckoutOrder) (*cart.CartGrain, error) {
-	cartId, ok := cart.ParseCartId(order.MerchantReference1)
-	if !ok {
-		return nil, fmt.Errorf("invalid cart id in order reference: %s", order.MerchantReference1)
-	}
-	grain, err := a.pool.Get(ctx, uint64(cartId))
-	if err != nil {
-		return nil, fmt.Errorf("failed to get cart grain: %w", err)
-	}
-	return grain, nil
-}
-
-func (a *App) HandleCheckoutRequests(amqpUrl string, mux *http.ServeMux, inventoryService inventory.InventoryService) {
-	conn, err := amqp.Dial(amqpUrl)
-	if err != nil {
-		log.Fatalf("failed to connect to RabbitMQ: %v", err)
-	}
-
-	amqpListener := actor.NewAmqpListener(conn, func(id uint64, msg []actor.ApplyResult) (any, error) {
-		return &CartChangeEvent{
-			CartId:    cart.CartId(id),
-			Mutations: msg,
-		}, nil
-	})
-	amqpListener.DefineTopics()
-	a.pool.AddListener(amqpListener)
-	orderHandler := NewAmqpOrderHandler(conn)
-	orderHandler.DefineQueue()
-
-	mux.HandleFunc("/push", func(w http.ResponseWriter, r *http.Request) {
-		log.Printf("Klarna order confirmation push, method: %s", r.Method)
-		if r.Method != http.MethodPost {
-			w.WriteHeader(http.StatusMethodNotAllowed)
-			return
-		}
-		orderId := r.URL.Query().Get("order_id")
-		log.Printf("Order confirmation push: %s", orderId)
-
-		order, err := a.klarnaClient.GetOrder(r.Context(), orderId)
-
-		if err != nil {
-			log.Printf("Error creating request: %v\n", err)
-			w.WriteHeader(http.StatusInternalServerError)
-			return
-		}
-
-		grain, err := a.getGrainFromOrder(r.Context(), order)
-		if err != nil {
-			logger.ErrorContext(r.Context(), "Unable to get grain from klarna order", "error", err.Error())
-			w.WriteHeader(http.StatusInternalServerError)
-			return
-		}
-
-		if inventoryService != nil {
-			inventoryRequests := getInventoryRequests(grain.Items)
-			err = inventoryService.ReserveInventory(r.Context(), inventoryRequests...)
-
-			if err != nil {
-				logger.WarnContext(r.Context(), "placeorder inventory reservation failed")
-				w.WriteHeader(http.StatusNotAcceptable)
-				return
-			}
-			a.pool.Apply(r.Context(), uint64(grain.Id), &messages.InventoryReserved{
-				Id:     grain.Id.String(),
-				Status: "success",
-			})
-		}
-
-		err = confirmOrder(r.Context(), order, orderHandler)
-		if err != nil {
-			log.Printf("Error confirming order: %v\n", err)
-			w.WriteHeader(http.StatusInternalServerError)
-			return
-		}
-
-		err = triggerOrderCompleted(r.Context(), a.server, order)
-		if err != nil {
-			log.Printf("Error processing cart message: %v\n", err)
-			w.WriteHeader(http.StatusInternalServerError)
-			return
-		}
-		err = a.klarnaClient.AcknowledgeOrder(r.Context(), orderId)
-		if err != nil {
-			log.Printf("Error acknowledging order: %v\n", err)
-		}
-
-		w.WriteHeader(http.StatusOK)
-	})
-
-	mux.HandleFunc("GET /checkout", a.server.CheckoutHandler(func(order *CheckoutOrder, w http.ResponseWriter) error {
-		w.Header().Set("Content-Type", "text/html; charset=utf-8")
-		w.Header().Set("Permissions-Policy", "payment=(self \"https://js.stripe.com\" \"https://m.stripe.network\" \"https://js.playground.kustom.co\")")
-		w.WriteHeader(http.StatusOK)
-		_, err := fmt.Fprintf(w, tpl, order.HTMLSnippet)
-		return err
-	}))
-
-	mux.HandleFunc("GET /confirmation/{order_id}", func(w http.ResponseWriter, r *http.Request) {
-
-		orderId := r.PathValue("order_id")
-		order, err := a.klarnaClient.GetOrder(r.Context(), orderId)
-
-		if err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-			w.Write([]byte(err.Error()))
-			return
-		}
-
-		// Apply ConfirmationViewed mutation
-		cartId, ok := cart.ParseCartId(order.MerchantReference1)
-		if ok {
-			a.pool.Apply(r.Context(), uint64(cartId), &messages.ConfirmationViewed{})
-		}
-
-		w.Header().Set("Content-Type", "text/html; charset=utf-8")
-		if order.Status == "checkout_complete" {
-			http.SetCookie(w, &http.Cookie{
-				Name:     "cartid",
-				Value:    "",
-				Path:     "/",
-				Secure:   true,
-				HttpOnly: true,
-				Expires:  time.Unix(0, 0),
-				SameSite: http.SameSiteLaxMode,
-			})
-		}
-
-		w.WriteHeader(http.StatusOK)
-		fmt.Fprintf(w, tpl, order.HTMLSnippet)
-	})
-	mux.HandleFunc("/notification", func(w http.ResponseWriter, r *http.Request) {
-		log.Printf("Klarna order notification, method: %s", r.Method)
-		logger.InfoContext(r.Context(), "Klarna order notification received", "method", r.Method)
-		if r.Method != "POST" {
-			w.WriteHeader(http.StatusMethodNotAllowed)
-			return
-		}
-		order := &CheckoutOrder{}
-		err := json.NewDecoder(r.Body).Decode(order)
-		if err != nil {
-			w.WriteHeader(http.StatusBadRequest)
-		}
-		log.Printf("Klarna order notification: %s", order.ID)
-		logger.InfoContext(r.Context(), "Klarna order notification received", "order_id", order.ID)
-
-		w.WriteHeader(http.StatusOK)
-	})
-	mux.HandleFunc("POST /validate", func(w http.ResponseWriter, r *http.Request) {
-		log.Printf("Klarna order validation, method: %s", r.Method)
-		if r.Method != "POST" {
-			w.WriteHeader(http.StatusMethodNotAllowed)
-			return
-		}
-		order := &CheckoutOrder{}
-		err := json.NewDecoder(r.Body).Decode(order)
-		if err != nil {
-			w.WriteHeader(http.StatusBadRequest)
-		}
-		logger.InfoContext(r.Context(), "Klarna order validation received", "order_id", order.ID, "cart_id", order.MerchantReference1)
-		grain, err := a.getGrainFromOrder(r.Context(), order)
-		if err != nil {
-			logger.ErrorContext(r.Context(), "Unable to get grain from klarna order", "error", err.Error())
-			w.WriteHeader(http.StatusInternalServerError)
-			return
-		}
-		if inventoryService != nil {
-			inventoryRequests := getInventoryRequests(grain.Items)
-			_, err = inventoryService.ReservationCheck(r.Context(), inventoryRequests...)
-			if err != nil {
-				logger.WarnContext(r.Context(), "placeorder inventory check failed")
-				w.WriteHeader(http.StatusNotAcceptable)
-				return
-			}
-		}
-
-		w.WriteHeader(http.StatusOK)
-	})
-}

cmd/cart/k8s-host-discovery.go

@@ -1,60 +0,0 @@
-package main
-
-import (
-	"log"
-
-	"git.tornberg.me/go-cart-actor/pkg/actor"
-	"git.tornberg.me/go-cart-actor/pkg/cart"
-	"git.tornberg.me/go-cart-actor/pkg/discovery"
-	"k8s.io/client-go/kubernetes"
-	"k8s.io/client-go/rest"
-)
-
-func GetDiscovery() discovery.Discovery {
-	if podIp == "" {
-		return nil
-	}
-
-	config, kerr := rest.InClusterConfig()
-
-	if kerr != nil {
-		log.Fatalf("Error creating kubernetes client: %v\n", kerr)
-	}
-	client, err := kubernetes.NewForConfig(config)
-	if err != nil {
-		log.Fatalf("Error creating client: %v\n", err)
-	}
-	return discovery.NewK8sDiscovery(client)
-}
-
-func UseDiscovery(pool actor.GrainPool[*cart.CartGrain]) {
-
-	go func(hw discovery.Discovery) {
-		if hw == nil {
-			log.Print("No discovery service available")
-			return
-		}
-		ch, err := hw.Watch()
-		if err != nil {
-			log.Printf("Discovery error: %v", err)
-			return
-		}
-		for evt := range ch {
-			if evt.Host == "" {
-				continue
-			}
-			switch evt.IsReady {
-			case false:
-				if pool.IsKnown(evt.Host) {
-					log.Printf("Host %s is not ready, removing", evt.Host)
-					pool.RemoveHost(evt.Host)
-				}
-			default:
-				if !pool.IsKnown(evt.Host) {
-					log.Printf("Discovered host %s", evt.Host)
-					pool.AddRemoteHost(evt.Host)
-				}
-			}
-		}
-	}(GetDiscovery())
-}

cmd/cart/klarna-client.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"context"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -31,14 +30,11 @@ const (
 	KlarnaPlaygroundUrl = "https://api.playground.klarna.com"
 )
 
-func (k *KlarnaClient) GetOrder(ctx context.Context, orderId string) (*CheckoutOrder, error) {
+func (k *KlarnaClient) GetOrder(orderId string) (*CheckoutOrder, error) {
 	req, err := http.NewRequest("GET", k.Url+"/checkout/v3/orders/"+orderId, nil)
 	if err != nil {
 		return nil, err
 	}
-	spanCtx, span := tracer.Start(ctx, "Get klarna order")
-	defer span.End()
-	req = req.WithContext(spanCtx)
 	req.Header.Add("Content-Type", "application/json")
 	req.SetBasicAuth(k.UserName, k.Password)
 
@@ -68,15 +64,13 @@ func (k *KlarnaClient) getOrderResponse(res *http.Response) (*CheckoutOrder, err
 	return nil, fmt.Errorf("%s", res.Status)
 }
 
-func (k *KlarnaClient) CreateOrder(ctx context.Context, reader io.Reader) (*CheckoutOrder, error) {
+func (k *KlarnaClient) CreateOrder(reader io.Reader) (*CheckoutOrder, error) {
 	//bytes.NewReader(reply.Payload)
 	req, err := http.NewRequest("POST", k.Url+"/checkout/v3/orders", reader)
 	if err != nil {
 		return nil, err
 	}
-	spanCtx, span := tracer.Start(ctx, "Create klarna order")
-	defer span.End()
-	req = req.WithContext(spanCtx)
+
 	req.Header.Add("Content-Type", "application/json")
 	req.SetBasicAuth(k.UserName, k.Password)
 
@@ -88,16 +82,13 @@ func (k *KlarnaClient) CreateOrder(ctx context.Context, reader io.Reader) (*Chec
 	return k.getOrderResponse(res)
 }
 
-func (k *KlarnaClient) UpdateOrder(ctx context.Context, orderId string, reader io.Reader) (*CheckoutOrder, error) {
+func (k *KlarnaClient) UpdateOrder(orderId string, reader io.Reader) (*CheckoutOrder, error) {
 	//bytes.NewReader(reply.Payload)
 	req, err := http.NewRequest("POST", fmt.Sprintf("%s/checkout/v3/orders/%s", k.Url, orderId), reader)
 	if err != nil {
 		return nil, err
 	}
 
-	spanCtx, span := tracer.Start(ctx, "Update klarna order")
-	defer span.End()
-	req = req.WithContext(spanCtx)
 	req.Header.Add("Content-Type", "application/json")
 	req.SetBasicAuth(k.UserName, k.Password)
 
@@ -109,14 +100,12 @@ func (k *KlarnaClient) UpdateOrder(ctx context.Context, orderId string, reader i
 	return k.getOrderResponse(res)
 }
 
-func (k *KlarnaClient) AbortOrder(ctx context.Context, orderId string) error {
+func (k *KlarnaClient) AbortOrder(orderId string) error {
 	req, err := http.NewRequest("POST", fmt.Sprintf("%s/checkout/v3/orders/%s/abort", k.Url, orderId), nil)
 	if err != nil {
 		return err
 	}
-	spanCtx, span := tracer.Start(ctx, "Abort klarna order")
-	defer span.End()
-	req = req.WithContext(spanCtx)
+
 	req.SetBasicAuth(k.UserName, k.Password)
 
 	_, err = http.DefaultClient.Do(req)
@@ -124,14 +113,11 @@ func (k *KlarnaClient) AbortOrder(ctx context.Context, orderId string) error {
 }
 
 // ordermanagement/v1/orders/{order_id}/acknowledge
-func (k *KlarnaClient) AcknowledgeOrder(ctx context.Context, orderId string) error {
+func (k *KlarnaClient) AcknowledgeOrder(orderId string) error {
 	req, err := http.NewRequest("POST", fmt.Sprintf("%s/ordermanagement/v1/orders/%s/acknowledge", k.Url, orderId), nil)
 	if err != nil {
 		return err
 	}
-	spanCtx, span := tracer.Start(ctx, "Acknowledge klarna order")
-	defer span.End()
-	req = req.WithContext(spanCtx)
 	id := uuid.New()
 
 	req.SetBasicAuth(k.UserName, k.Password)

cmd/cart/main.go

@@ -1,30 +1,28 @@
 package main
 
 import (
-	"context"
 	"encoding/json"
 	"fmt"
 	"log"
-	"net"
 	"net/http"
 	"net/http/pprof"
 	"os"
 	"os/signal"
 	"strings"
+	"syscall"
 	"time"
 
 	"git.tornberg.me/go-cart-actor/pkg/actor"
-	"git.tornberg.me/go-cart-actor/pkg/cart"
+	"git.tornberg.me/go-cart-actor/pkg/discovery"
 	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-	"git.tornberg.me/go-cart-actor/pkg/promotions"
 	"git.tornberg.me/go-cart-actor/pkg/proxy"
 	"git.tornberg.me/go-cart-actor/pkg/voucher"
-	"git.tornberg.me/mats/go-redis-inventory/pkg/inventory"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
-	"github.com/redis/go-redis/v9"
-	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
+	"k8s.io/apimachinery/pkg/watch"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/rest"
 )
 
 var (
@@ -32,6 +30,14 @@ var (
 		Name: "cart_grain_spawned_total",
 		Help: "The total number of spawned grains",
 	})
+	grainMutations = promauto.NewCounter(prometheus.CounterOpts{
+		Name: "cart_grain_mutations_total",
+		Help: "The total number of mutations",
+	})
+	grainLookups = promauto.NewCounter(prometheus.CounterOpts{
+		Name: "cart_grain_lookups_total",
+		Help: "The total number of lookups",
+	})
 )
 
 func init() {
@@ -39,16 +45,26 @@ func init() {
 }
 
 type App struct {
-	pool         *actor.SimpleGrainPool[cart.CartGrain]
-	server       *PoolServer
-	klarnaClient *KlarnaClient
+	pool *actor.SimpleGrainPool[CartGrain]
 }
 
 var podIp = os.Getenv("POD_IP")
 var name = os.Getenv("POD_NAME")
 var amqpUrl = os.Getenv("AMQP_URL")
-var redisAddress = os.Getenv("REDIS_ADDRESS")
-var redisPassword = os.Getenv("REDIS_PASSWORD")
+
+var tpl = `<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>s10r testing - checkout</title>
+  </head>
+
+  <body>
+    %s
+  </body>
+</html>
+`
 
 func getCountryFromHost(host string) string {
 	if strings.Contains(strings.ToLower(host), "-no") {
@@ -60,57 +76,86 @@ func getCountryFromHost(host string) string {
 	return ""
 }
 
-type MutationContext struct {
-	VoucherService voucher.Service
+func GetDiscovery() discovery.Discovery {
+	if podIp == "" {
+		return nil
+	}
+
+	config, kerr := rest.InClusterConfig()
+
+	if kerr != nil {
+		log.Fatalf("Error creating kubernetes client: %v\n", kerr)
+	}
+	client, err := kubernetes.NewForConfig(config)
+	if err != nil {
+		log.Fatalf("Error creating client: %v\n", err)
+	}
+	return discovery.NewK8sDiscovery(client)
 }
 
-type CartChangeEvent struct {
-	CartId    cart.CartId         `json:"cartId"`
-	Mutations []actor.ApplyResult `json:"mutations"`
+type MutationContext struct {
+	VoucherService voucher.Service
 }
 
 func main() {
 
 	controlPlaneConfig := actor.DefaultServerConfig()
 
-	promotionData, err := promotions.LoadStateFile("data/promotions.json")
-	if err != nil {
-		log.Printf("Error loading promotions: %v\n", err)
-	}
-
-	log.Printf("loaded %d promotions", len(promotionData.State.Promotions))
-
-	promotionService := promotions.NewPromotionService(nil)
-
-	reg := cart.NewCartMultationRegistry()
-	reg.RegisterProcessor(
-		actor.NewMutationProcessor(func(ctx context.Context, g *cart.CartGrain) error {
-			_, span := tracer.Start(ctx, "Totals and promotions")
-			defer span.End()
-			g.UpdateTotals()
-
-			promotionCtx := promotions.NewContextFromCart(g, promotions.WithNow(time.Now()), promotions.WithCustomerSegment("vip"))
-			_, actions := promotionService.EvaluateAll(promotionData.State.Promotions, promotionCtx)
-			for _, action := range actions {
-				log.Printf("apply: %+v", action)
-				g.UpdateTotals()
-			}
-			return nil
+	reg := actor.NewMutationRegistry()
+	reg.RegisterMutations(
+		actor.NewMutation(AddItem, func() *messages.AddItem {
+			return &messages.AddItem{}
+		}),
+		actor.NewMutation(ChangeQuantity, func() *messages.ChangeQuantity {
+			return &messages.ChangeQuantity{}
+		}),
+		actor.NewMutation(RemoveItem, func() *messages.RemoveItem {
+			return &messages.RemoveItem{}
+		}),
+		actor.NewMutation(InitializeCheckout, func() *messages.InitializeCheckout {
+			return &messages.InitializeCheckout{}
+		}),
+		actor.NewMutation(OrderCreated, func() *messages.OrderCreated {
+			return &messages.OrderCreated{}
+		}),
+		actor.NewMutation(RemoveDelivery, func() *messages.RemoveDelivery {
+			return &messages.RemoveDelivery{}
+		}),
+		actor.NewMutation(SetDelivery, func() *messages.SetDelivery {
+			return &messages.SetDelivery{}
+		}),
+		actor.NewMutation(SetPickupPoint, func() *messages.SetPickupPoint {
+			return &messages.SetPickupPoint{}
+		}),
+		actor.NewMutation(ClearCart, func() *messages.ClearCartRequest {
+			return &messages.ClearCartRequest{}
+		}),
+		actor.NewMutation(AddVoucher, func() *messages.AddVoucher {
+			return &messages.AddVoucher{}
+		}),
+		actor.NewMutation(RemoveVoucher, func() *messages.RemoveVoucher {
+			return &messages.RemoveVoucher{}
 		}),
 	)
-
-	diskStorage := actor.NewDiskStorage[cart.CartGrain]("data", reg)
-	poolConfig := actor.GrainPoolConfig[cart.CartGrain]{
+	diskStorage := actor.NewDiskStorage[CartGrain]("data", reg)
+	poolConfig := actor.GrainPoolConfig[CartGrain]{
 		MutationRegistry: reg,
 		Storage:          diskStorage,
-		Spawn: func(ctx context.Context, id uint64) (actor.Grain[cart.CartGrain], error) {
-			_, span := tracer.Start(ctx, fmt.Sprintf("Spawn cart id %d", id))
-			defer span.End()
+		Spawn: func(id uint64) (actor.Grain[CartGrain], error) {
 			grainSpawns.Inc()
-			ret := cart.NewCartGrain(id, time.Now())
+			ret := &CartGrain{
+				lastItemId:     0,
+				lastDeliveryId: 0,
+				Deliveries:     []*CartDelivery{},
+				Id:             CartId(id),
+				Items:          []*CartItem{},
+				TotalPrice:     NewPrice(),
+			}
 			// Set baseline lastChange at spawn; replay may update it to last event timestamp.
+			ret.lastChange = time.Now()
+			ret.lastAccess = time.Now()
 
-			err := diskStorage.LoadEvents(ctx, id, ret)
+			err := diskStorage.LoadEvents(id, ret)
 
 			return ret, err
 		},
@@ -126,71 +171,66 @@ func main() {
 	if err != nil {
 		log.Fatalf("Error creating cart pool: %v\n", err)
 	}
-
-	pool.SetPubSub(actor.NewPubSub(func(id uint64, event actor.Event) {
-		grain, _ := pool.Get(context.Background(), id)
-		if sub, ok := any(grain).(actor.Subscribable); ok {
-			sub.Notify(event)
-		}
-	}))
-
-	klarnaClient := NewKlarnaClient(KlarnaPlaygroundUrl, os.Getenv("KLARNA_API_USERNAME"), os.Getenv("KLARNA_API_PASSWORD"))
-	rdb := redis.NewClient(&redis.Options{
-		Addr:     redisAddress,
-		Password: redisPassword,
-		DB:       0,
-	})
-	inventoryService, err := inventory.NewRedisInventoryService(rdb)
-	if err != nil {
-		log.Fatalf("Error creating inventory service: %v\n", err)
-	}
-
-	syncedServer := NewPoolServer(pool, fmt.Sprintf("%s, %s", name, podIp), klarnaClient, inventoryService)
-
 	app := &App{
-		pool:         pool,
-		server:       syncedServer,
-		klarnaClient: klarnaClient,
+		pool: pool,
 	}
 
-	mux := http.NewServeMux()
-	debugMux := http.NewServeMux()
-
-	if amqpUrl == "" {
-		log.Printf("no connection to amqp defined")
-	} else {
-		app.HandleCheckoutRequests(amqpUrl, mux, inventoryService)
-	}
-
-	grpcSrv, err := actor.NewControlServer[*cart.CartGrain](controlPlaneConfig, pool)
+	grpcSrv, err := actor.NewControlServer[*CartGrain](controlPlaneConfig, pool)
 	if err != nil {
 		log.Fatalf("Error starting control plane gRPC server: %v\n", err)
 	}
 	defer grpcSrv.GracefulStop()
 
-	// go diskStorage.SaveLoop(10 * time.Second)
-	UseDiscovery(pool)
+	go diskStorage.SaveLoop(10 * time.Second)
 
-	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
-	defer stop()
+	go func(hw discovery.Discovery) {
+		if hw == nil {
+			log.Print("No discovery service available")
+			return
+		}
+		ch, err := hw.Watch()
+		if err != nil {
+			log.Printf("Discovery error: %v", err)
+			return
+		}
+		for evt := range ch {
+			if evt.Host == "" {
+				continue
+			}
+			switch evt.Type {
+			case watch.Deleted:
+				if pool.IsKnown(evt.Host) {
+					pool.RemoveHost(evt.Host)
+				}
+			default:
+				if !pool.IsKnown(evt.Host) {
+					log.Printf("Discovered host %s", evt.Host)
+					pool.AddRemote(evt.Host)
+				}
+			}
+		}
+	}(GetDiscovery())
 
-	otelShutdown, err := setupOTelSDK(ctx)
-	if err != nil {
-		log.Fatalf("Unable to start otel %v", err)
+	orderHandler := &AmqpOrderHandler{
+		Url: amqpUrl,
 	}
+	klarnaClient := NewKlarnaClient(KlarnaPlaygroundUrl, os.Getenv("KLARNA_API_USERNAME"), os.Getenv("KLARNA_API_PASSWORD"))
 
-	syncedServer.Serve(mux)
+	syncedServer := NewPoolServer(pool, fmt.Sprintf("%s, %s", name, podIp), klarnaClient)
+	mux := http.NewServeMux()
+	mux.Handle("/cart/", http.StripPrefix("/cart", syncedServer.Serve()))
 	// only for local
 	mux.HandleFunc("GET /add/remote/{host}", func(w http.ResponseWriter, r *http.Request) {
 		pool.AddRemote(r.PathValue("host"))
 	})
-
-	debugMux.HandleFunc("/debug/pprof/", pprof.Index)
-	debugMux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
-	debugMux.HandleFunc("/debug/pprof/profile", pprof.Profile)
-	debugMux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
-	debugMux.HandleFunc("/debug/pprof/trace", pprof.Trace)
-	debugMux.Handle("/metrics", promhttp.Handler())
+	// mux.HandleFunc("GET /save", app.HandleSave)
+	//mux.HandleFunc("/", app.RewritePath)
+	mux.HandleFunc("/debug/pprof/", pprof.Index)
+	mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
+	mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
+	mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
+	mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
+	mux.Handle("/metrics", promhttp.Handler())
 	mux.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
 		// Grain pool health: simple capacity check (mirrors previous GrainHandler.IsHealthy)
 		grainCount, capacity := app.pool.LocalUsage()
@@ -216,6 +256,152 @@ func main() {
 		w.Write([]byte("ok"))
 	})
 
+	mux.HandleFunc("/checkout", func(w http.ResponseWriter, r *http.Request) {
+		orderId := r.URL.Query().Get("order_id")
+		order := &CheckoutOrder{}
+
+		if orderId == "" {
+			cookie, err := r.Cookie("cartid")
+			if err != nil {
+				w.WriteHeader(http.StatusBadRequest)
+				w.Write([]byte(err.Error()))
+				return
+			}
+			if cookie.Value == "" {
+				w.WriteHeader(http.StatusBadRequest)
+				w.Write([]byte("no cart id to checkout is empty"))
+				return
+			}
+			parsed, ok := ParseCartId(cookie.Value)
+			if !ok {
+				w.WriteHeader(http.StatusBadRequest)
+				w.Write([]byte("invalid cart id format"))
+				return
+			}
+			cartId := parsed
+			syncedServer.ProxyHandler(func(w http.ResponseWriter, r *http.Request, cartId CartId) error {
+				order, err = syncedServer.CreateOrUpdateCheckout(r.Host, cartId)
+				if err != nil {
+					return err
+				}
+				w.Header().Set("Content-Type", "text/html; charset=utf-8")
+				w.Header().Set("Permissions-Policy", "payment=(self \"https://js.stripe.com\" \"https://m.stripe.network\" \"https://js.playground.kustom.co\")")
+				w.WriteHeader(http.StatusOK)
+				fmt.Fprintf(w, tpl, order.HTMLSnippet)
+				return nil
+			})(cartId, w, r)
+
+			if err != nil {
+				w.WriteHeader(http.StatusInternalServerError)
+				w.Write([]byte(err.Error()))
+			}
+
+			// v2: Apply now returns *CartGrain; order creation handled inside grain (no payload to unmarshal)
+		} else {
+			order, err = klarnaClient.GetOrder(orderId)
+			if err != nil {
+				w.WriteHeader(http.StatusBadRequest)
+				w.Write([]byte(err.Error()))
+				return
+			}
+			w.Header().Set("Content-Type", "text/html; charset=utf-8")
+			w.Header().Set("Permissions-Policy", "payment=(self \"https://js.stripe.com\" \"https://m.stripe.network\" \"https://js.playground.kustom.co\")")
+			w.WriteHeader(http.StatusOK)
+			fmt.Fprintf(w, tpl, order.HTMLSnippet)
+		}
+
+	})
+	mux.HandleFunc("/confirmation/{order_id}", func(w http.ResponseWriter, r *http.Request) {
+
+		orderId := r.PathValue("order_id")
+		order, err := klarnaClient.GetOrder(orderId)
+
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			w.Write([]byte(err.Error()))
+			return
+		}
+
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		if order.Status == "checkout_complete" {
+			http.SetCookie(w, &http.Cookie{
+				Name:     "cartid",
+				Value:    "",
+				Path:     "/",
+				Secure:   true,
+				HttpOnly: true,
+				Expires:  time.Unix(0, 0),
+				SameSite: http.SameSiteLaxMode,
+			})
+		}
+
+		w.WriteHeader(http.StatusOK)
+		fmt.Fprintf(w, tpl, order.HTMLSnippet)
+	})
+	mux.HandleFunc("/validate", func(w http.ResponseWriter, r *http.Request) {
+		log.Printf("Klarna order validation, method: %s", r.Method)
+		if r.Method != "POST" {
+			w.WriteHeader(http.StatusMethodNotAllowed)
+			return
+		}
+		order := &CheckoutOrder{}
+		err := json.NewDecoder(r.Body).Decode(order)
+		if err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+		}
+		log.Printf("Klarna order validation: %s", order.ID)
+		//err = confirmOrder(order, orderHandler)
+		//if err != nil {
+		//	log.Printf("Error validating order: %v\n", err)
+		//	w.WriteHeader(http.StatusInternalServerError)
+		//	return
+		//}
+		//
+		//err = triggerOrderCompleted(err, syncedServer, order)
+		//if err != nil {
+		//	log.Printf("Error processing cart message: %v\n", err)
+		//	w.WriteHeader(http.StatusInternalServerError)
+		//	return
+		//}
+		w.WriteHeader(http.StatusOK)
+	})
+	mux.HandleFunc("/push", func(w http.ResponseWriter, r *http.Request) {
+
+		if r.Method != http.MethodPost {
+			w.WriteHeader(http.StatusMethodNotAllowed)
+			return
+		}
+		orderId := r.URL.Query().Get("order_id")
+		log.Printf("Order confirmation push: %s", orderId)
+
+		order, err := klarnaClient.GetOrder(orderId)
+
+		if err != nil {
+			log.Printf("Error creating request: %v\n", err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+
+		err = confirmOrder(order, orderHandler)
+		if err != nil {
+			log.Printf("Error confirming order: %v\n", err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+
+		err = triggerOrderCompleted(syncedServer, order)
+		if err != nil {
+			log.Printf("Error processing cart message: %v\n", err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+		err = klarnaClient.AcknowledgeOrder(orderId)
+		if err != nil {
+			log.Printf("Error acknowledging order: %v\n", err)
+		}
+
+		w.WriteHeader(http.StatusOK)
+	})
 	mux.HandleFunc("/version", func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
 		w.Write([]byte("1.0.0"))
@@ -223,64 +409,49 @@ func main() {
 
 	mux.HandleFunc("/openapi.json", ServeEmbeddedOpenAPI)
 
-	srv := &http.Server{
-		Addr:         ":8080",
-		BaseContext:  func(net.Listener) context.Context { return ctx },
-		ReadTimeout:  10 * time.Second,
-		WriteTimeout: 20 * time.Second,
-		Handler:      otelhttp.NewHandler(mux, "/"),
-	}
+	sigs := make(chan os.Signal, 1)
+	done := make(chan bool, 1)
+	signal.Notify(sigs, syscall.SIGTERM)
 
-	defer func() {
-
-		fmt.Println("Shutting down due to signal")
-		otelShutdown(context.Background())
+	go func() {
+		sig := <-sigs
+		fmt.Println("Shutting down due to signal:", sig)
 		diskStorage.Close()
 		pool.Close()
 
-	}()
-
-	srvErr := make(chan error, 1)
-	go func() {
-		srvErr <- srv.ListenAndServe()
+		done <- true
 	}()
 
 	log.Print("Server started at port 8080")
-
-	go http.ListenAndServe(":8081", debugMux)
-
-	select {
-	case err = <-srvErr:
-		// Error when starting HTTP server.
-		log.Fatalf("Unable to start server: %v", err)
-	case <-ctx.Done():
-		// Wait for first CTRL+C.
-		// Stop receiving signal notifications as soon as possible.
-		stop()
-	}
+	go http.ListenAndServe(":8080", mux)
+	<-done
 
 }
 
-func triggerOrderCompleted(ctx context.Context, syncedServer *PoolServer, order *CheckoutOrder) error {
+func triggerOrderCompleted(syncedServer *PoolServer, order *CheckoutOrder) error {
 	mutation := &messages.OrderCreated{
 		OrderId: order.ID,
 		Status:  order.Status,
 	}
-	cid, ok := cart.ParseCartId(order.MerchantReference1)
+	cid, ok := ParseCartId(order.MerchantReference1)
 	if !ok {
 		return fmt.Errorf("invalid cart id in order reference: %s", order.MerchantReference1)
 	}
-	_, applyErr := syncedServer.Apply(ctx, uint64(cid), mutation)
+	_, applyErr := syncedServer.Apply(uint64(cid), mutation)
 
 	return applyErr
 }
 
-func confirmOrder(ctx context.Context, order *CheckoutOrder, orderHandler *AmqpOrderHandler) error {
+func confirmOrder(order *CheckoutOrder, orderHandler *AmqpOrderHandler) error {
 	orderToSend, err := json.Marshal(order)
 	if err != nil {
 		return err
 	}
-
+	err = orderHandler.Connect()
+	if err != nil {
+		return err
+	}
+	defer orderHandler.Close()
 	err = orderHandler.OrderCompleted(orderToSend)
 	if err != nil {
 		return err

cmd/cart/mutation_add_item.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"fmt"
@@ -28,23 +28,14 @@ func AddItem(g *CartGrain, m *messages.AddItem) error {
 		return fmt.Errorf("AddItem: invalid quantity %d", m.Quantity)
 	}
 
-	// Merge with any existing item having same SKU and matching StoreId (including both nil).
-	for _, existing := range g.Items {
-		if existing.Sku != m.Sku {
-			continue
-		}
-		sameStore := (existing.StoreId == nil && m.StoreId == nil) ||
-			(existing.StoreId != nil && m.StoreId != nil && *existing.StoreId == *m.StoreId)
-		if !sameStore {
-			continue
-		}
-		existing.Quantity += int(m.Quantity)
-		existing.Stock = StockStatus(m.Stock)
-		// If existing had nil store but new has one, adopt it.
-		if existing.StoreId == nil && m.StoreId != nil {
+	// Fast path: merge with existing item having same SKU
+	if existing, found := g.FindItemWithSku(m.Sku); found {
+		if existing.StoreId == m.StoreId {
+			existing.Quantity += int(m.Quantity)
+			existing.Stock = StockStatus(m.Stock)
 			existing.StoreId = m.StoreId
+			return nil
 		}
-		return nil
 	}
 
 	g.mu.Lock()
@@ -63,7 +54,6 @@ func AddItem(g *CartGrain, m *messages.AddItem) error {
 		ItemId:   uint32(m.ItemId),
 		Quantity: int(m.Quantity),
 		Sku:      m.Sku,
-		Tax:      int(taxRate * 100),
 		Meta: &ItemMeta{
 			Name:       m.Name,
 			Image:      m.Image,
@@ -76,10 +66,7 @@ func AddItem(g *CartGrain, m *messages.AddItem) error {
 			Outlet:     m.Outlet,
 			SellerId:   m.SellerId,
 			SellerName: m.SellerName,
-			Cgm:        m.Cgm,
 		},
-		SaleStatus: m.SaleStatus,
-		ParentId:   m.ParentId,
 
 		Price:      *pricePerItem,
 		TotalPrice: *MultiplyPrice(*pricePerItem, int64(m.Quantity)),

cmd/cart/mutation_add_voucher.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"slices"
@@ -54,12 +54,10 @@ func AddVoucher(g *CartGrain, m *messages.AddVoucher) error {
 
 	g.lastVoucherId++
 	g.Vouchers = append(g.Vouchers, &Voucher{
-		Id:          g.lastVoucherId,
-		Applied:     false,
-		Description: m.Description,
-		Code:        m.Code,
-		Rules:       m.VoucherRules,
-		Value:       m.Value,
+		Id:    g.lastVoucherId,
+		Code:  m.Code,
+		Rules: m.VoucherRules,
+		Value: m.Value,
 	})
 	g.UpdateTotals()
 	return nil

cmd/cart/mutation_change_quantity.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"fmt"
@@ -45,7 +45,6 @@ func ChangeQuantity(g *CartGrain, m *messages.ChangeQuantity) error {
 	if m.Quantity <= 0 {
 		// Remove the item
 		g.Items = append(g.Items[:foundIndex], g.Items[foundIndex+1:]...)
-		g.UpdateTotals()
 		return nil
 	}
 

cmd/cart/mutation_initialize_checkout.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"fmt"

cmd/cart/mutation_order_created.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"fmt"

cmd/cart/mutation_remove_delivery.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"fmt"

cmd/cart/mutation_remove_item.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"fmt"

cmd/cart/mutation_set_delivery.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"fmt"

cmd/cart/mutation_set_pickup_point.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"fmt"

cmd/cart/openapi.json

@@ -7,7 +7,7 @@
   },
   "servers": [
     {
-      "url": "https://cart.k6n.net",
+      "url": "https://cart.tornberg.me",
       "description": "Production server"
     },
     {
@@ -16,7 +16,7 @@
     }
   ],
   "paths": {
-    "/cart": {
+    "/cart/": {
       "get": {
         "summary": "Get (or create) current cart (cookie based)",
         "description": "Returns the current cart. If no cartid cookie is present a new cart is created and Set-Cart-Id response header plus a Set-Cookie header are sent.",
@@ -263,76 +263,6 @@
         }
       }
     },
-    "/cart/voucher": {
-      "put": {
-        "summary": "Add voucher to cart",
-        "requestBody": {
-          "required": true,
-          "content": {
-            "application/json": {
-              "schema": { "$ref": "#/components/schemas/AddVoucherRequest" }
-            }
-          }
-        },
-        "responses": {
-          "200": {
-            "description": "Voucher added",
-            "content": {
-              "application/json": {
-                "schema": { "$ref": "#/components/schemas/CartGrain" }
-              }
-            }
-          },
-          "400": { "description": "Invalid body" },
-          "500": { "description": "Server error" }
-        }
-      }
-    },
-    "/cart/subscription-details": {
-      "put": {
-        "summary": "Upsert subscription details",
-        "requestBody": {
-          "required": true,
-          "content": {
-            "application/json": {
-              "schema": {
-                "$ref": "#/components/schemas/UpsertSubscriptionDetails"
-              }
-            }
-          }
-        },
-        "responses": {
-          "200": {
-            "description": "Subscription details updated",
-            "content": {
-              "application/json": {
-                "schema": { "$ref": "#/components/schemas/CartGrain" }
-              }
-            }
-          },
-          "400": { "description": "Invalid body" },
-          "500": { "description": "Server error" }
-        }
-      }
-    },
-    "/cart/voucher/{voucherId}": {
-      "delete": {
-        "summary": "Remove voucher from cart",
-        "parameters": [{ "$ref": "#/components/parameters/VoucherIdParam" }],
-        "responses": {
-          "200": {
-            "description": "Voucher removed",
-            "content": {
-              "application/json": {
-                "schema": { "$ref": "#/components/schemas/CartGrain" }
-              }
-            }
-          },
-          "400": { "description": "Invalid id" },
-          "500": { "description": "Server error" }
-        }
-      }
-    },
     "/cart/byid/{id}": {
       "get": {
         "summary": "Get cart by explicit id",
@@ -522,53 +452,6 @@
         }
       }
     },
-    "/cart/byid/{id}/voucher": {
-      "put": {
-        "summary": "Add voucher (by id variant)",
-        "parameters": [{ "$ref": "#/components/parameters/CartIdParam" }],
-        "requestBody": {
-          "required": true,
-          "content": {
-            "application/json": {
-              "schema": { "$ref": "#/components/schemas/AddVoucherRequest" }
-            }
-          }
-        },
-        "responses": {
-          "200": {
-            "description": "Voucher added",
-            "content": {
-              "application/json": {
-                "schema": { "$ref": "#/components/schemas/CartGrain" }
-              }
-            }
-          },
-          "400": { "description": "Invalid body" },
-          "500": { "description": "Server error" }
-        }
-      }
-    },
-    "/cart/byid/{id}/voucher/{voucherId}": {
-      "delete": {
-        "summary": "Remove voucher (by id variant)",
-        "parameters": [
-          { "$ref": "#/components/parameters/CartIdParam" },
-          { "$ref": "#/components/parameters/VoucherIdParam" }
-        ],
-        "responses": {
-          "200": {
-            "description": "Voucher removed",
-            "content": {
-              "application/json": {
-                "schema": { "$ref": "#/components/schemas/CartGrain" }
-              }
-            }
-          },
-          "400": { "description": "Invalid ids" },
-          "500": { "description": "Server error" }
-        }
-      }
-    },
     "/healthz": {
       "get": {
         "summary": "Liveness & capacity probe",
@@ -634,12 +517,6 @@
         "in": "path",
         "required": true,
         "schema": { "type": "integer", "format": "int64", "minimum": 0 }
-      },
-      "VoucherIdParam": {
-        "name": "voucherId",
-        "in": "path",
-        "required": true,
-        "schema": { "type": "integer", "format": "int64", "minimum": 0 }
       }
     },
     "schemas": {
@@ -665,17 +542,7 @@
           "processing": { "type": "boolean" },
           "paymentInProgress": { "type": "boolean" },
           "orderReference": { "type": "string" },
-          "paymentStatus": { "type": "string" },
-          "vouchers": {
-            "type": "array",
-            "items": { "$ref": "#/components/schemas/Voucher" }
-          },
-          "subscriptionDetails": {
-            "type": "object",
-            "additionalProperties": {
-              "$ref": "#/components/schemas/SubscriptionDetails"
-            }
-          }
+          "paymentStatus": { "type": "string" }
         },
         "required": ["id", "items", "totalPrice", "totalTax", "totalDiscount"]
       },
@@ -803,48 +670,6 @@
           "pickupPoint": { "$ref": "#/components/schemas/PickupPoint" }
         },
         "required": ["provider", "items"]
-      },
-      "AddVoucherRequest": {
-        "type": "object",
-        "properties": {
-          "code": { "type": "string" }
-        },
-        "required": ["code"]
-      },
-      "UpsertSubscriptionDetails": {
-        "type": "object",
-        "properties": {
-          "id": { "type": "string" },
-          "offeringCode": { "type": "string" },
-          "signingType": { "type": "string" },
-          "data": { "type": "object" }
-        },
-        "required": ["offeringCode", "signingType"]
-      },
-      "Voucher": {
-        "type": "object",
-        "properties": {
-          "code": { "type": "string" },
-          "applied": { "type": "boolean" },
-          "rules": {
-            "type": "array",
-            "items": { "type": "string" }
-          },
-          "description": { "type": "string" },
-          "id": { "type": "integer", "format": "int64" },
-          "value": { "type": "integer", "format": "int64" }
-        },
-        "required": ["code", "applied", "rules", "id", "value"]
-      },
-      "SubscriptionDetails": {
-        "type": "object",
-        "properties": {
-          "id": { "type": "string" },
-          "offeringCode": { "type": "string" },
-          "signingType": { "type": "string" },
-          "data": { "type": "object" }
-        },
-        "required": ["id"]
       }
     }
   },

cmd/cart/otel.go

@@ -1,117 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"time"
-
-	"go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc"
-	"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc"
-	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
-	"go.opentelemetry.io/otel/log/global"
-	"go.opentelemetry.io/otel/propagation"
-	"go.opentelemetry.io/otel/sdk/log"
-	"go.opentelemetry.io/otel/sdk/metric"
-	"go.opentelemetry.io/otel/sdk/trace"
-)
-
-// setupOTelSDK bootstraps the OpenTelemetry pipeline.
-// If it does not return an error, make sure to call shutdown for proper cleanup.
-func setupOTelSDK(ctx context.Context) (func(context.Context) error, error) {
-	var shutdownFuncs []func(context.Context) error
-	var err error
-
-	// shutdown calls cleanup functions registered via shutdownFuncs.
-	// The errors from the calls are joined.
-	// Each registered cleanup will be invoked once.
-	shutdown := func(ctx context.Context) error {
-		var err error
-		for _, fn := range shutdownFuncs {
-			err = errors.Join(err, fn(ctx))
-		}
-		shutdownFuncs = nil
-		return err
-	}
-
-	// handleErr calls shutdown for cleanup and makes sure that all errors are returned.
-	handleErr := func(inErr error) {
-		err = errors.Join(inErr, shutdown(ctx))
-	}
-
-	// Set up propagator.
-	prop := newPropagator()
-	otel.SetTextMapPropagator(prop)
-
-	// Set up trace provider.
-	tracerProvider, err := newTracerProvider()
-	if err != nil {
-		handleErr(err)
-		return shutdown, err
-	}
-	shutdownFuncs = append(shutdownFuncs, tracerProvider.Shutdown)
-	otel.SetTracerProvider(tracerProvider)
-
-	// Set up meter provider.
-	meterProvider, err := newMeterProvider()
-	if err != nil {
-		handleErr(err)
-		return shutdown, err
-	}
-	shutdownFuncs = append(shutdownFuncs, meterProvider.Shutdown)
-	otel.SetMeterProvider(meterProvider)
-
-	// Set up logger provider.
-	loggerProvider, err := newLoggerProvider()
-	if err != nil {
-		handleErr(err)
-		return shutdown, err
-	}
-	shutdownFuncs = append(shutdownFuncs, loggerProvider.Shutdown)
-	global.SetLoggerProvider(loggerProvider)
-
-	return shutdown, err
-}
-
-func newPropagator() propagation.TextMapPropagator {
-	return propagation.NewCompositeTextMapPropagator(
-		propagation.TraceContext{},
-		propagation.Baggage{},
-	)
-}
-
-func newTracerProvider() (*trace.TracerProvider, error) {
-	traceExporter, err := otlptracegrpc.New(context.Background())
-	if err != nil {
-		return nil, err
-	}
-
-	tracerProvider := trace.NewTracerProvider(
-		trace.WithBatcher(traceExporter,
-			// Default is 5s. Set to 1s for demonstrative purposes.
-			trace.WithBatchTimeout(time.Second)),
-	)
-	return tracerProvider, nil
-}
-
-func newMeterProvider() (*metric.MeterProvider, error) {
-	exporter, err := otlpmetricgrpc.New(context.Background())
-	if err != nil {
-		return nil, err
-	}
-
-	provider := metric.NewMeterProvider(metric.WithReader(metric.NewPeriodicReader(exporter)))
-	return provider, nil
-}
-
-func newLoggerProvider() (*log.LoggerProvider, error) {
-	logExporter, err := otlploggrpc.New(context.Background())
-	if err != nil {
-		return nil, err
-	}
-
-	loggerProvider := log.NewLoggerProvider(
-		log.WithProcessor(log.NewBatchProcessor(logExporter)),
-	)
-	return loggerProvider, nil
-}

cmd/cart/pool-server.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"bytes"
-	"context"
 	"encoding/json"
 	"fmt"
 	"log"
@@ -12,56 +11,31 @@ import (
 	"time"
 
 	"git.tornberg.me/go-cart-actor/pkg/actor"
-	"git.tornberg.me/go-cart-actor/pkg/cart"
 	messages "git.tornberg.me/go-cart-actor/pkg/messages"
 	"git.tornberg.me/go-cart-actor/pkg/voucher"
-	"git.tornberg.me/mats/go-redis-inventory/pkg/inventory"
 	"github.com/gogo/protobuf/proto"
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promauto"
-	"go.opentelemetry.io/contrib/bridges/otelslog"
-	"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
-	"google.golang.org/protobuf/types/known/anypb"
-
-	"go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/attribute"
-	"go.opentelemetry.io/otel/metric"
-	"go.opentelemetry.io/otel/trace"
-)
-
-var (
-	grainMutations = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "cart_grain_mutations_total",
-		Help: "The total number of mutations",
-	})
-	grainLookups = promauto.NewCounter(prometheus.CounterOpts{
-		Name: "cart_grain_lookups_total",
-		Help: "The total number of lookups",
-	})
 )
 
 type PoolServer struct {
-	actor.GrainPool[*cart.CartGrain]
-	pod_name         string
-	klarnaClient     *KlarnaClient
-	inventoryService inventory.InventoryService
+	actor.GrainPool[*CartGrain]
+	pod_name     string
+	klarnaClient *KlarnaClient
 }
 
-func NewPoolServer(pool actor.GrainPool[*cart.CartGrain], pod_name string, klarnaClient *KlarnaClient, inventoryService inventory.InventoryService) *PoolServer {
+func NewPoolServer(pool actor.GrainPool[*CartGrain], pod_name string, klarnaClient *KlarnaClient) *PoolServer {
 	return &PoolServer{
-		GrainPool:        pool,
-		pod_name:         pod_name,
-		klarnaClient:     klarnaClient,
-		inventoryService: inventoryService,
+		GrainPool:    pool,
+		pod_name:     pod_name,
+		klarnaClient: klarnaClient,
 	}
 }
 
-func (s *PoolServer) ApplyLocal(ctx context.Context, id cart.CartId, mutation ...proto.Message) (*actor.MutationResult[*cart.CartGrain], error) {
-	return s.Apply(ctx, uint64(id), mutation...)
+func (s *PoolServer) ApplyLocal(id CartId, mutation ...proto.Message) (*actor.MutationResult[*CartGrain], error) {
+	return s.Apply(uint64(id), mutation...)
 }
 
-func (s *PoolServer) GetCartHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
-	grain, err := s.Get(r.Context(), uint64(id))
+func (s *PoolServer) GetCartHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
+	grain, err := s.Get(uint64(id))
 	if err != nil {
 		return err
 	}
@@ -69,17 +43,16 @@ func (s *PoolServer) GetCartHandler(w http.ResponseWriter, r *http.Request, id c
 	return s.WriteResult(w, grain)
 }
 
-func (s *PoolServer) AddSkuToCartHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) AddSkuToCartHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 	sku := r.PathValue("sku")
-	msg, err := GetItemAddMessage(r.Context(), sku, 1, getCountryFromHost(r.Host), nil)
+	msg, err := GetItemAddMessage(sku, 1, getCountryFromHost(r.Host), nil)
 	if err != nil {
 		return err
 	}
-	data, err := s.ApplyLocal(r.Context(), id, msg)
+	data, err := s.ApplyLocal(id, msg)
 	if err != nil {
 		return err
 	}
-	grainMutations.Add(float64(len(data.Mutations)))
 	return s.WriteResult(w, data)
 }
 
@@ -100,14 +73,14 @@ func (s *PoolServer) WriteResult(w http.ResponseWriter, result any) error {
 	return err
 }
 
-func (s *PoolServer) DeleteItemHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) DeleteItemHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 
 	itemIdString := r.PathValue("itemId")
 	itemId, err := strconv.ParseInt(itemIdString, 10, 64)
 	if err != nil {
 		return err
 	}
-	data, err := s.ApplyLocal(r.Context(), id, &messages.RemoveItem{Id: uint32(itemId)})
+	data, err := s.ApplyLocal(id, &messages.RemoveItem{Id: uint32(itemId)})
 	if err != nil {
 		return err
 	}
@@ -120,14 +93,14 @@ type SetDeliveryRequest struct {
 	PickupPoint *messages.PickupPoint `json:"pickupPoint,omitempty"`
 }
 
-func (s *PoolServer) SetDeliveryHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) SetDeliveryHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 
 	delivery := SetDeliveryRequest{}
 	err := json.NewDecoder(r.Body).Decode(&delivery)
 	if err != nil {
 		return err
 	}
-	data, err := s.ApplyLocal(r.Context(), id, &messages.SetDelivery{
+	data, err := s.ApplyLocal(id, &messages.SetDelivery{
 		Provider:    delivery.Provider,
 		Items:       delivery.Items,
 		PickupPoint: delivery.PickupPoint,
@@ -138,7 +111,7 @@ func (s *PoolServer) SetDeliveryHandler(w http.ResponseWriter, r *http.Request,
 	return s.WriteResult(w, data)
 }
 
-func (s *PoolServer) SetPickupPointHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) SetPickupPointHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 
 	deliveryIdString := r.PathValue("deliveryId")
 	deliveryId, err := strconv.ParseInt(deliveryIdString, 10, 64)
@@ -150,7 +123,7 @@ func (s *PoolServer) SetPickupPointHandler(w http.ResponseWriter, r *http.Reques
 	if err != nil {
 		return err
 	}
-	reply, err := s.ApplyLocal(r.Context(), id, &messages.SetPickupPoint{
+	reply, err := s.ApplyLocal(id, &messages.SetPickupPoint{
 		DeliveryId: uint32(deliveryId),
 		Id:         pickupPoint.Id,
 		Name:       pickupPoint.Name,
@@ -165,27 +138,27 @@ func (s *PoolServer) SetPickupPointHandler(w http.ResponseWriter, r *http.Reques
 	return s.WriteResult(w, reply)
 }
 
-func (s *PoolServer) RemoveDeliveryHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) RemoveDeliveryHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 
 	deliveryIdString := r.PathValue("deliveryId")
 	deliveryId, err := strconv.Atoi(deliveryIdString)
 	if err != nil {
 		return err
 	}
-	reply, err := s.ApplyLocal(r.Context(), id, &messages.RemoveDelivery{Id: uint32(deliveryId)})
+	reply, err := s.ApplyLocal(id, &messages.RemoveDelivery{Id: uint32(deliveryId)})
 	if err != nil {
 		return err
 	}
 	return s.WriteResult(w, reply)
 }
 
-func (s *PoolServer) QuantityChangeHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) QuantityChangeHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 	changeQuantity := messages.ChangeQuantity{}
 	err := json.NewDecoder(r.Body).Decode(&changeQuantity)
 	if err != nil {
 		return err
 	}
-	reply, err := s.ApplyLocal(r.Context(), id, &changeQuantity)
+	reply, err := s.ApplyLocal(id, &changeQuantity)
 	if err != nil {
 		return err
 	}
@@ -203,14 +176,14 @@ type SetCartItems struct {
 	Items   []Item `json:"items"`
 }
 
-func getMultipleAddMessages(ctx context.Context, items []Item, country string) []proto.Message {
+func getMultipleAddMessages(items []Item, country string) []proto.Message {
 	wg := sync.WaitGroup{}
 	mu := sync.Mutex{}
 	msgs := make([]proto.Message, 0, len(items))
 	for _, itm := range items {
 		wg.Go(
 			func() {
-				msg, err := GetItemAddMessage(ctx, itm.Sku, itm.Quantity, country, itm.StoreId)
+				msg, err := GetItemAddMessage(itm.Sku, itm.Quantity, country, itm.StoreId)
 				if err != nil {
 					log.Printf("error adding item %s: %v", itm.Sku, err)
 					return
@@ -224,7 +197,7 @@ func getMultipleAddMessages(ctx context.Context, items []Item, country string) [
 	return msgs
 }
 
-func (s *PoolServer) SetCartItemsHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) SetCartItemsHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 	setCartItems := SetCartItems{}
 	err := json.NewDecoder(r.Body).Decode(&setCartItems)
 	if err != nil {
@@ -233,23 +206,23 @@ func (s *PoolServer) SetCartItemsHandler(w http.ResponseWriter, r *http.Request,
 
 	msgs := make([]proto.Message, 0, len(setCartItems.Items)+1)
 	msgs = append(msgs, &messages.ClearCartRequest{})
-	msgs = append(msgs, getMultipleAddMessages(r.Context(), setCartItems.Items, setCartItems.Country)...)
+	msgs = append(msgs, getMultipleAddMessages(setCartItems.Items, setCartItems.Country)...)
 
-	reply, err := s.ApplyLocal(r.Context(), id, msgs...)
+	reply, err := s.ApplyLocal(id, msgs...)
 	if err != nil {
 		return err
 	}
 	return s.WriteResult(w, reply)
 }
 
-func (s *PoolServer) AddMultipleItemHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) AddMultipleItemHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 	setCartItems := SetCartItems{}
 	err := json.NewDecoder(r.Body).Decode(&setCartItems)
 	if err != nil {
 		return err
 	}
 
-	reply, err := s.ApplyLocal(r.Context(), id, getMultipleAddMessages(r.Context(), setCartItems.Items, setCartItems.Country)...)
+	reply, err := s.ApplyLocal(id, getMultipleAddMessages(setCartItems.Items, setCartItems.Country)...)
 	if err != nil {
 		return err
 	}
@@ -263,17 +236,17 @@ type AddRequest struct {
 	StoreId  *string `json:"storeId"`
 }
 
-func (s *PoolServer) AddSkuRequestHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
+func (s *PoolServer) AddSkuRequestHandler(w http.ResponseWriter, r *http.Request, id CartId) error {
 	addRequest := AddRequest{Quantity: 1}
 	err := json.NewDecoder(r.Body).Decode(&addRequest)
 	if err != nil {
 		return err
 	}
-	msg, err := GetItemAddMessage(r.Context(), addRequest.Sku, int(addRequest.Quantity), addRequest.Country, addRequest.StoreId)
+	msg, err := GetItemAddMessage(addRequest.Sku, int(addRequest.Quantity), addRequest.Country, addRequest.StoreId)
 	if err != nil {
 		return err
 	}
-	reply, err := s.ApplyLocal(r.Context(), id, msg)
+	reply, err := s.ApplyLocal(id, msg)
 	if err != nil {
 		return err
 	}
@@ -314,61 +287,24 @@ func getLocale(country string) string {
 	return "sv-se"
 }
 
-func getLocationId(item *cart.CartItem) inventory.LocationID {
-	if item.StoreId == nil || *item.StoreId == "" {
-		return "se"
-	}
-	return inventory.LocationID(*item.StoreId)
-}
-
-func getInventoryRequests(items []*cart.CartItem) []inventory.ReserveRequest {
-	var requests []inventory.ReserveRequest
-	for _, item := range items {
-		if item == nil {
-			continue
-		}
-		requests = append(requests, inventory.ReserveRequest{
-			SKU:        inventory.SKU(item.Sku),
-			LocationID: getLocationId(item),
-			Quantity:   uint32(item.Quantity),
-		})
-	}
-	return requests
-}
-
-func getOriginalHost(r *http.Request) string {
-	proxyHost := r.Header.Get("X-Forwarded-Host")
-	if proxyHost != "" {
-		return proxyHost
-	}
-	return r.Host
-}
-
-func (s *PoolServer) CreateOrUpdateCheckout(r *http.Request, id cart.CartId) (*CheckoutOrder, error) {
-	host := getOriginalHost(r)
+func (s *PoolServer) CreateOrUpdateCheckout(host string, id CartId) (*CheckoutOrder, error) {
 	country := getCountryFromHost(host)
 	meta := &CheckoutMeta{
 		Terms:        fmt.Sprintf("https://%s/terms", host),
 		Checkout:     fmt.Sprintf("https://%s/checkout?order_id={checkout.order.id}", host),
 		Confirmation: fmt.Sprintf("https://%s/confirmation/{checkout.order.id}", host),
+		Validation:   fmt.Sprintf("https://%s/validate", host),
+		Push:         fmt.Sprintf("https://%s/push?order_id={checkout.order.id}", host),
 		Country:      country,
 		Currency:     getCurrency(country),
 		Locale:       getLocale(country),
 	}
 
 	// Get current grain state (may be local or remote)
-	grain, err := s.Get(r.Context(), uint64(id))
+	grain, err := s.Get(uint64(id))
 	if err != nil {
 		return nil, err
 	}
-	if s.inventoryService != nil {
-		inventoryRequests := getInventoryRequests(grain.Items)
-		failingRequest, err := s.inventoryService.ReservationCheck(r.Context(), inventoryRequests...)
-		if err != nil {
-			logger.WarnContext(r.Context(), "inventory check failed", string(failingRequest.SKU), string(failingRequest.LocationID))
-			return nil, err
-		}
-	}
 
 	// Build pure checkout payload
 	payload, _, err := BuildCheckoutOrderPayload(grain, meta)
@@ -377,15 +313,15 @@ func (s *PoolServer) CreateOrUpdateCheckout(r *http.Request, id cart.CartId) (*C
 	}
 
 	if grain.OrderReference != "" {
-		return s.klarnaClient.UpdateOrder(r.Context(), grain.OrderReference, bytes.NewReader(payload))
+		return s.klarnaClient.UpdateOrder(grain.OrderReference, bytes.NewReader(payload))
 	} else {
-		return s.klarnaClient.CreateOrder(r.Context(), bytes.NewReader(payload))
+		return s.klarnaClient.CreateOrder(bytes.NewReader(payload))
 	}
 }
 
-func (s *PoolServer) ApplyCheckoutStarted(ctx context.Context, klarnaOrder *CheckoutOrder, id cart.CartId) (*actor.MutationResult[*cart.CartGrain], error) {
+func (s *PoolServer) ApplyCheckoutStarted(klarnaOrder *CheckoutOrder, id CartId) (*actor.MutationResult[*CartGrain], error) {
 	// Persist initialization state via mutation (best-effort)
-	return s.ApplyLocal(ctx, id, &messages.InitializeCheckout{
+	return s.ApplyLocal(id, &messages.InitializeCheckout{
 		OrderId:           klarnaOrder.ID,
 		Status:            klarnaOrder.Status,
 		PaymentInProgress: true,
@@ -405,12 +341,12 @@ func (s *PoolServer) ApplyCheckoutStarted(ctx context.Context, klarnaOrder *Chec
 // }
 //
 
-func CookieCartIdHandler(fn func(cartId cart.CartId, w http.ResponseWriter, r *http.Request) error) func(w http.ResponseWriter, r *http.Request) {
+func CookieCartIdHandler(fn func(cartId CartId, w http.ResponseWriter, r *http.Request) error) func(w http.ResponseWriter, r *http.Request) {
 	return func(w http.ResponseWriter, r *http.Request) {
-		var id cart.CartId
+		var id CartId
 		cookie, err := r.Cookie("cartid")
 		if err != nil || cookie.Value == "" {
-			id = cart.MustNewCartId()
+			id = MustNewCartId()
 			http.SetCookie(w, &http.Cookie{
 				Name:     "cartid",
 				Value:    id.String(),
@@ -422,9 +358,9 @@ func CookieCartIdHandler(fn func(cartId cart.CartId, w http.ResponseWriter, r *h
 			})
 			w.Header().Set("Set-Cart-Id", id.String())
 		} else {
-			parsed, ok := cart.ParseCartId(cookie.Value)
+			parsed, ok := ParseCartId(cookie.Value)
 			if !ok {
-				id = cart.MustNewCartId()
+				id = MustNewCartId()
 				http.SetCookie(w, &http.Cookie{
 					Name:     "cartid",
 					Value:    id.String(),
@@ -452,7 +388,7 @@ func CookieCartIdHandler(fn func(cartId cart.CartId, w http.ResponseWriter, r *h
 
 // Removed leftover legacy block after CookieCartIdHandler (obsolete code referencing cid/legacy)
 
-func (s *PoolServer) RemoveCartCookie(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
+func (s *PoolServer) RemoveCartCookie(w http.ResponseWriter, r *http.Request, cartId CartId) error {
 	// Clear cart cookie (breaking change: do not issue a new legacy id here)
 	http.SetCookie(w, &http.Cookie{
 		Name:     "cartid",
@@ -467,17 +403,17 @@ func (s *PoolServer) RemoveCartCookie(w http.ResponseWriter, r *http.Request, ca
 	return nil
 }
 
-func CartIdHandler(fn func(cartId cart.CartId, w http.ResponseWriter, r *http.Request) error) func(w http.ResponseWriter, r *http.Request) {
+func CartIdHandler(fn func(cartId CartId, w http.ResponseWriter, r *http.Request) error) func(w http.ResponseWriter, r *http.Request) {
 	return func(w http.ResponseWriter, r *http.Request) {
-		var id cart.CartId
+		var id CartId
 		raw := r.PathValue("id")
 		// If no id supplied, generate a new one
 		if raw == "" {
-			id := cart.MustNewCartId()
+			id := MustNewCartId()
 			w.Header().Set("Set-Cart-Id", id.String())
 		} else {
 			// Parse base62 cart id
-			if parsedId, ok := cart.ParseCartId(raw); !ok {
+			if parsedId, ok := ParseCartId(raw); !ok {
 				w.WriteHeader(http.StatusBadRequest)
 				w.Write([]byte("cart id is invalid"))
 				return
@@ -495,71 +431,35 @@ func CartIdHandler(fn func(cartId cart.CartId, w http.ResponseWriter, r *http.Re
 	}
 }
 
-func (s *PoolServer) ProxyHandler(fn func(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error) func(cartId cart.CartId, w http.ResponseWriter, r *http.Request) error {
-	return func(cartId cart.CartId, w http.ResponseWriter, r *http.Request) error {
+func (s *PoolServer) ProxyHandler(fn func(w http.ResponseWriter, r *http.Request, cartId CartId) error) func(cartId CartId, w http.ResponseWriter, r *http.Request) error {
+	return func(cartId CartId, w http.ResponseWriter, r *http.Request) error {
 		if ownerHost, ok := s.OwnerHost(uint64(cartId)); ok {
-			ctx, span := tracer.Start(r.Context(), "proxy")
-			defer span.End()
-			span.SetAttributes(attribute.String("cartid", cartId.String()))
-			hostAttr := attribute.String("other host", ownerHost.Name())
-			span.SetAttributes(hostAttr)
-			logger.InfoContext(ctx, "cart proxyed", "result", ownerHost.Name())
-			proxyCalls.Add(ctx, 1, metric.WithAttributes(hostAttr))
 			handled, err := ownerHost.Proxy(uint64(cartId), w, r)
-
-			grainLookups.Inc()
 			if err == nil && handled {
 				return nil
 			}
 		}
-		_, span := tracer.Start(r.Context(), "own")
-		span.SetAttributes(attribute.String("cartid", cartId.String()))
-		defer span.End()
+
 		return fn(w, r, cartId)
 
 	}
 }
 
-var (
-	tracer = otel.Tracer(name)
-
-	meter      = otel.Meter(name)
-	logger     = otelslog.NewLogger(name)
-	proxyCalls metric.Int64Counter
-
-// rollCnt metric.Int64Counter
-)
-
-func init() {
-	var err error
-	proxyCalls, err = meter.Int64Counter("proxy.calls",
-		metric.WithDescription("Number of proxy calls"),
-		metric.WithUnit("{calls}"))
-	if err != nil {
-		panic(err)
-	}
-
-}
-
 type AddVoucherRequest struct {
 	VoucherCode string `json:"code"`
 }
 
-func (s *PoolServer) AddVoucherHandler(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
+func (s *PoolServer) AddVoucherHandler(w http.ResponseWriter, r *http.Request, cartId CartId) error {
 	data := &AddVoucherRequest{}
 	json.NewDecoder(r.Body).Decode(data)
 	v := voucher.Service{}
 	msg, err := v.GetVoucher(data.VoucherCode)
 	if err != nil {
-		s.ApplyLocal(r.Context(), cartId, &messages.PreConditionFailed{
-			Operation: "AddVoucher",
-			Error:     err.Error(),
-		})
 		w.WriteHeader(http.StatusInternalServerError)
 		w.Write([]byte(err.Error()))
 		return err
 	}
-	reply, err := s.ApplyLocal(r.Context(), cartId, msg)
+	reply, err := s.ApplyLocal(cartId, msg)
 	if err != nil {
 		w.WriteHeader(http.StatusInternalServerError)
 		w.Write([]byte(err.Error()))
@@ -569,61 +469,7 @@ func (s *PoolServer) AddVoucherHandler(w http.ResponseWriter, r *http.Request, c
 	return nil
 }
 
-type SubscriptionDetailsRequest struct {
-	Id           *string         `json:"id,omitempty"`
-	OfferingCode string          `json:"offeringCode,omitempty"`
-	SigningType  string          `json:"signingType,omitempty"`
-	Data         json.RawMessage `json:"data,omitempty"`
-}
-
-func (sd *SubscriptionDetailsRequest) ToMessage() *messages.UpsertSubscriptionDetails {
-	return &messages.UpsertSubscriptionDetails{
-		Id:           sd.Id,
-		OfferingCode: sd.OfferingCode,
-		SigningType:  sd.SigningType,
-		Data:         &anypb.Any{Value: sd.Data},
-	}
-}
-
-func (s *PoolServer) SubscriptionDetailsHandler(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
-	data := &SubscriptionDetailsRequest{}
-	err := json.NewDecoder(r.Body).Decode(data)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		w.Write([]byte(err.Error()))
-		return err
-	}
-	reply, err := s.ApplyLocal(r.Context(), cartId, data.ToMessage())
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		w.Write([]byte(err.Error()))
-		return err
-	}
-	s.WriteResult(w, reply)
-	return nil
-}
-
-func (s *PoolServer) CheckoutHandler(fn func(order *CheckoutOrder, w http.ResponseWriter) error) func(w http.ResponseWriter, r *http.Request) {
-	return CookieCartIdHandler(s.ProxyHandler(func(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
-		orderId := r.URL.Query().Get("order_id")
-		if orderId == "" {
-			order, err := s.CreateOrUpdateCheckout(r, cartId)
-			if err != nil {
-				logger.Error("unable to create klarna session", "error", err)
-				return err
-			}
-			s.ApplyCheckoutStarted(r.Context(), order, cartId)
-			return fn(order, w)
-		}
-		order, err := s.klarnaClient.GetOrder(r.Context(), orderId)
-		if err != nil {
-			return err
-		}
-		return fn(order, w)
-	}))
-}
-
-func (s *PoolServer) RemoveVoucherHandler(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
+func (s *PoolServer) RemoveVoucherHandler(w http.ResponseWriter, r *http.Request, cartId CartId) error {
 
 	idStr := r.PathValue("voucherId")
 	id, err := strconv.ParseInt(idStr, 10, 64)
@@ -632,7 +478,7 @@ func (s *PoolServer) RemoveVoucherHandler(w http.ResponseWriter, r *http.Request
 		w.Write([]byte(err.Error()))
 		return err
 	}
-	reply, err := s.ApplyLocal(r.Context(), cartId, &messages.RemoveVoucher{Id: uint32(id)})
+	reply, err := s.ApplyLocal(cartId, &messages.RemoveVoucher{Id: uint32(id)})
 	if err != nil {
 		w.WriteHeader(http.StatusInternalServerError)
 		w.Write([]byte(err.Error()))
@@ -642,126 +488,45 @@ func (s *PoolServer) RemoveVoucherHandler(w http.ResponseWriter, r *http.Request
 	return nil
 }
 
-func (s *PoolServer) SetUserIdHandler(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
-	setUserId := messages.SetUserId{}
-	err := json.NewDecoder(r.Body).Decode(&setUserId)
-	if err != nil {
-		return err
-	}
-	reply, err := s.ApplyLocal(r.Context(), cartId, &setUserId)
-	if err != nil {
-		return err
-	}
-	return s.WriteResult(w, reply)
-}
-
-func (s *PoolServer) LineItemMarkingHandler(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
-	itemIdStr := r.PathValue("itemId")
-	itemId, err := strconv.ParseInt(itemIdStr, 10, 64)
-	if err != nil {
-		return err
-	}
-	lineItemMarking := messages.LineItemMarking{Id: uint32(itemId)}
-	err = json.NewDecoder(r.Body).Decode(&lineItemMarking)
-	if err != nil {
-		return err
-	}
-	reply, err := s.ApplyLocal(r.Context(), cartId, &lineItemMarking)
-	if err != nil {
-		return err
-	}
-	return s.WriteResult(w, reply)
-}
-
-func (s *PoolServer) RemoveLineItemMarkingHandler(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
-	itemIdStr := r.PathValue("itemId")
-	itemId, err := strconv.ParseInt(itemIdStr, 10, 64)
-	if err != nil {
-		return err
-	}
-	removeLineItemMarking := messages.RemoveLineItemMarking{Id: uint32(itemId)}
-	reply, err := s.ApplyLocal(r.Context(), cartId, &removeLineItemMarking)
-	if err != nil {
-		return err
-	}
-	return s.WriteResult(w, reply)
-}
-
-func (s *PoolServer) CreateCheckoutOrderHandler(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
-	createCheckoutOrder := messages.CreateCheckoutOrder{}
-	err := json.NewDecoder(r.Body).Decode(&createCheckoutOrder)
-	if err != nil {
-		return err
-	}
-	reply, err := s.ApplyLocal(r.Context(), cartId, &createCheckoutOrder)
-	if err != nil {
-		return err
-	}
-	return s.WriteResult(w, reply)
-}
-
-func (s *PoolServer) Serve(mux *http.ServeMux) {
-
-	// mux.HandleFunc("OPTIONS /cart", func(w http.ResponseWriter, r *http.Request) {
-	// 	w.Header().Set("Access-Control-Allow-Origin", "*")
-	// 	w.Header().Set("Access-Control-Allow-Methods", "GET, PUT, POST, DELETE")
-	// 	w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
-	// 	w.WriteHeader(http.StatusOK)
-	// })
-
-	handleFunc := func(pattern string, handlerFunc func(http.ResponseWriter, *http.Request)) {
-		attr := attribute.String("http.route", pattern)
-		mux.HandleFunc(pattern, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			span := trace.SpanFromContext(r.Context())
-			span.SetName(pattern)
-			span.SetAttributes(attr)
-
-			labeler, _ := otelhttp.LabelerFromContext(r.Context())
-			labeler.Add(attr)
-
-			handlerFunc(w, r)
-		}))
-	}
-
-	handleFunc("GET /cart", CookieCartIdHandler(s.ProxyHandler(s.GetCartHandler)))
-	handleFunc("GET /cart/add/{sku}", CookieCartIdHandler(s.ProxyHandler(s.AddSkuToCartHandler)))
-	handleFunc("POST /cart/add", CookieCartIdHandler(s.ProxyHandler(s.AddMultipleItemHandler)))
-	handleFunc("POST /cart", CookieCartIdHandler(s.ProxyHandler(s.AddSkuRequestHandler)))
-	handleFunc("POST /cart/set", CookieCartIdHandler(s.ProxyHandler(s.SetCartItemsHandler)))
-	handleFunc("DELETE /cart/{itemId}", CookieCartIdHandler(s.ProxyHandler(s.DeleteItemHandler)))
-	handleFunc("PUT /cart", CookieCartIdHandler(s.ProxyHandler(s.QuantityChangeHandler)))
-	handleFunc("DELETE /cart", CookieCartIdHandler(s.ProxyHandler(s.RemoveCartCookie)))
-	handleFunc("POST /cart/delivery", CookieCartIdHandler(s.ProxyHandler(s.SetDeliveryHandler)))
-	handleFunc("DELETE /cart/delivery/{deliveryId}", CookieCartIdHandler(s.ProxyHandler(s.RemoveDeliveryHandler)))
-	handleFunc("PUT /cart/delivery/{deliveryId}/pickupPoint", CookieCartIdHandler(s.ProxyHandler(s.SetPickupPointHandler)))
-	handleFunc("PUT /cart/voucher", CookieCartIdHandler(s.ProxyHandler(s.AddVoucherHandler)))
-	handleFunc("PUT /cart/subscription-details", CookieCartIdHandler(s.ProxyHandler(s.SubscriptionDetailsHandler)))
-	handleFunc("DELETE /cart/voucher/{voucherId}", CookieCartIdHandler(s.ProxyHandler(s.RemoveVoucherHandler)))
-	handleFunc("PUT /cart/user", CookieCartIdHandler(s.ProxyHandler(s.SetUserIdHandler)))
-	handleFunc("PUT /cart/item/{itemId}/marking", CookieCartIdHandler(s.ProxyHandler(s.LineItemMarkingHandler)))
-	handleFunc("DELETE /cart/item/{itemId}/marking", CookieCartIdHandler(s.ProxyHandler(s.RemoveLineItemMarkingHandler)))
-
-	handleFunc("POST /cart/checkout-order", CookieCartIdHandler(s.ProxyHandler(s.CreateCheckoutOrderHandler)))
-
-	//mux.HandleFunc("GET /cart/checkout", CookieCartIdHandler(s.ProxyHandler(s.HandleCheckout)))
-	//mux.HandleFunc("GET /cart/confirmation/{orderId}", CookieCartIdHandler(s.ProxyHandler(s.HandleConfirmation)))
-
-	handleFunc("GET /cart/byid/{id}", CartIdHandler(s.ProxyHandler(s.GetCartHandler)))
-	handleFunc("GET /cart/byid/{id}/add/{sku}", CartIdHandler(s.ProxyHandler(s.AddSkuToCartHandler)))
-	handleFunc("POST /cart/byid/{id}", CartIdHandler(s.ProxyHandler(s.AddSkuRequestHandler)))
-	handleFunc("DELETE /cart/byid/{id}/{itemId}", CartIdHandler(s.ProxyHandler(s.DeleteItemHandler)))
-	handleFunc("PUT /cart/byid/{id}", CartIdHandler(s.ProxyHandler(s.QuantityChangeHandler)))
-	handleFunc("POST /cart/byid/{id}/delivery", CartIdHandler(s.ProxyHandler(s.SetDeliveryHandler)))
-	handleFunc("DELETE /cart/byid/{id}/delivery/{deliveryId}", CartIdHandler(s.ProxyHandler(s.RemoveDeliveryHandler)))
-	handleFunc("PUT /cart/byid/{id}/delivery/{deliveryId}/pickupPoint", CartIdHandler(s.ProxyHandler(s.SetPickupPointHandler)))
-	handleFunc("PUT /cart/byid/{id}/voucher", CookieCartIdHandler(s.ProxyHandler(s.AddVoucherHandler)))
-	handleFunc("DELETE /cart/byid/{id}/voucher/{voucherId}", CookieCartIdHandler(s.ProxyHandler(s.RemoveVoucherHandler)))
-	handleFunc("PUT /cart/byid/{id}/user", CartIdHandler(s.ProxyHandler(s.SetUserIdHandler)))
-	handleFunc("PUT /cart/byid/{id}/item/{itemId}/marking", CartIdHandler(s.ProxyHandler(s.LineItemMarkingHandler)))
-	handleFunc("DELETE /cart/byid/{id}/item/{itemId}/marking", CartIdHandler(s.ProxyHandler(s.RemoveLineItemMarkingHandler)))
-
-	handleFunc("POST /cart/byid/{id}/checkout-order", CartIdHandler(s.ProxyHandler(s.CreateCheckoutOrderHandler)))
-	//mux.HandleFunc("GET /cart/byid/{id}/checkout", CartIdHandler(s.ProxyHandler(s.HandleCheckout)))
-	//mux.HandleFunc("GET /cart/byid/{id}/confirmation", CartIdHandler(s.ProxyHandler(s.HandleConfirmation)))
-
+func (s *PoolServer) Serve() *http.ServeMux {
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("OPTIONS /", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+		w.Header().Set("Access-Control-Allow-Methods", "GET, PUT, POST, DELETE")
+		w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
+		w.WriteHeader(http.StatusOK)
+	})
+
+	mux.HandleFunc("GET /", CookieCartIdHandler(s.ProxyHandler(s.GetCartHandler)))
+	mux.HandleFunc("GET /add/{sku}", CookieCartIdHandler(s.ProxyHandler(s.AddSkuToCartHandler)))
+	mux.HandleFunc("POST /add", CookieCartIdHandler(s.ProxyHandler(s.AddMultipleItemHandler)))
+	mux.HandleFunc("POST /", CookieCartIdHandler(s.ProxyHandler(s.AddSkuRequestHandler)))
+	mux.HandleFunc("POST /set", CookieCartIdHandler(s.ProxyHandler(s.SetCartItemsHandler)))
+	mux.HandleFunc("DELETE /{itemId}", CookieCartIdHandler(s.ProxyHandler(s.DeleteItemHandler)))
+	mux.HandleFunc("PUT /", CookieCartIdHandler(s.ProxyHandler(s.QuantityChangeHandler)))
+	mux.HandleFunc("DELETE /", CookieCartIdHandler(s.ProxyHandler(s.RemoveCartCookie)))
+	mux.HandleFunc("POST /delivery", CookieCartIdHandler(s.ProxyHandler(s.SetDeliveryHandler)))
+	mux.HandleFunc("DELETE /delivery/{deliveryId}", CookieCartIdHandler(s.ProxyHandler(s.RemoveDeliveryHandler)))
+	mux.HandleFunc("PUT /delivery/{deliveryId}/pickupPoint", CookieCartIdHandler(s.ProxyHandler(s.SetPickupPointHandler)))
+	mux.HandleFunc("PUT /voucher", CookieCartIdHandler(s.ProxyHandler(s.AddVoucherHandler)))
+	mux.HandleFunc("DELETE /voucher/{voucherId}", CookieCartIdHandler(s.ProxyHandler(s.RemoveVoucherHandler)))
+
+	//mux.HandleFunc("GET /checkout", CookieCartIdHandler(s.ProxyHandler(s.HandleCheckout)))
+	//mux.HandleFunc("GET /confirmation/{orderId}", CookieCartIdHandler(s.ProxyHandler(s.HandleConfirmation)))
+
+	mux.HandleFunc("GET /byid/{id}", CartIdHandler(s.ProxyHandler(s.GetCartHandler)))
+	mux.HandleFunc("GET /byid/{id}/add/{sku}", CartIdHandler(s.ProxyHandler(s.AddSkuToCartHandler)))
+	mux.HandleFunc("POST /byid/{id}", CartIdHandler(s.ProxyHandler(s.AddSkuRequestHandler)))
+	mux.HandleFunc("DELETE /byid/{id}/{itemId}", CartIdHandler(s.ProxyHandler(s.DeleteItemHandler)))
+	mux.HandleFunc("PUT /byid/{id}", CartIdHandler(s.ProxyHandler(s.QuantityChangeHandler)))
+	mux.HandleFunc("POST /byid/{id}/delivery", CartIdHandler(s.ProxyHandler(s.SetDeliveryHandler)))
+	mux.HandleFunc("DELETE /byid/{id}/delivery/{deliveryId}", CartIdHandler(s.ProxyHandler(s.RemoveDeliveryHandler)))
+	mux.HandleFunc("PUT /byid/{id}/delivery/{deliveryId}/pickupPoint", CartIdHandler(s.ProxyHandler(s.SetPickupPointHandler)))
+	mux.HandleFunc("PUT /byid/{id}/voucher", CookieCartIdHandler(s.ProxyHandler(s.AddVoucherHandler)))
+	mux.HandleFunc("DELETE /byid/{id}/voucher/{voucherId}", CookieCartIdHandler(s.ProxyHandler(s.RemoveVoucherHandler)))
+	//mux.HandleFunc("GET /byid/{id}/checkout", CartIdHandler(s.ProxyHandler(s.HandleCheckout)))
+	//mux.HandleFunc("GET /byid/{id}/confirmation", CartIdHandler(s.ProxyHandler(s.HandleConfirmation)))
+
+	return mux
 }

cmd/cart/price.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"encoding/json"

cmd/cart/price_test.go

@@ -1,4 +1,4 @@
-package cart
+package main
 
 import (
 	"encoding/json"
@@ -33,14 +33,14 @@ func TestPriceMarshalJSON(t *testing.T) {
 }
 
 func TestNewPriceFromIncVat(t *testing.T) {
-	p := NewPriceFromIncVat(1250, 25)
-	if p.IncVat != 1250 {
-		t.Fatalf("expected IncVat %d got %d", 1250, p.IncVat)
+	p := NewPriceFromIncVat(1000, 0.25)
+	if p.IncVat != 1000 {
+		t.Fatalf("expected IncVat %d got %d", 1000, p.IncVat)
 	}
 	if p.VatRates[25] != 250 {
 		t.Fatalf("expected VAT 25 rate %d got %d", 250, p.VatRates[25])
 	}
-	if p.ValueExVat() != 1000 {
+	if p.ValueExVat() != 750 {
 		t.Fatalf("expected exVat %d got %d", 750, p.ValueExVat())
 	}
 }
@@ -133,106 +133,3 @@ func TestPriceMultiplyMethod(t *testing.T) {
 		t.Fatalf("expected exVat %d got %d", exBefore*2, p.ValueExVat())
 	}
 }
-
-func TestGetTaxAmount(t *testing.T) {
-	tests := []struct {
-		total    int64
-		tax      int
-		expected int64
-		desc     string
-	}{
-		{1250, 2500, 250, "25% VAT"}, // 1250 / (1 + 100/25) = 1250 / 5 = 250
-		{1000, 2000, 166, "20% VAT"}, // 1000 / (1 + 100/20) = 1000 / 6 ≈ 166
-		{1200, 2500, 240, "25% VAT on 1200"},
-		{0, 2500, 0, "zero total"},
-		{100, 1000, 9, "10% VAT"},    // tax=1000 for 10%, 100 / (1 + 100/10) = 100 / 11 ≈ 9
-		{100, 10000, 50, "100% VAT"}, // tax=10000 for 100%, 100 / (1 + 100/100) = 100 / 2 = 50
-	}
-
-	for _, tt := range tests {
-		result := GetTaxAmount(tt.total, tt.tax)
-		if result != tt.expected {
-			t.Errorf("GetTaxAmount(%d, %d) [%s] = %d; expected %d", tt.total, tt.tax, tt.desc, result, tt.expected)
-		}
-	}
-}
-
-func TestNewPriceFromIncVatEdgeCases(t *testing.T) {
-	// Zero VAT rate
-	p := NewPriceFromIncVat(1000, 0)
-	if p.IncVat != 1000 {
-		t.Errorf("expected IncVat 1000, got %d", p.IncVat)
-	}
-	if len(p.VatRates) != 1 || p.VatRates[0] != 0 {
-		t.Errorf("expected VAT 0 for rate 0, got %v", p.VatRates)
-	}
-	if p.ValueExVat() != 1000 {
-		t.Errorf("expected exVat 1000, got %d", p.ValueExVat())
-	}
-
-	// High VAT rate, e.g., 50%
-	p = NewPriceFromIncVat(1500, 50)
-	expectedVat := int64(1500 / (1 + 100/50)) // 1500 / 3 = 500
-	if p.VatRates[50] != expectedVat {
-		t.Errorf("expected VAT %d for 50%%, got %d", expectedVat, p.VatRates[50])
-	}
-	if p.ValueExVat() != 1500-expectedVat {
-		t.Errorf("expected exVat %d, got %d", 1500-expectedVat, p.ValueExVat())
-	}
-}
-
-func TestPriceValueExVatAndTotalVat(t *testing.T) {
-	p := Price{IncVat: 13700, VatRates: map[float32]int64{25: 2500, 12: 1200}}
-	exVat := p.ValueExVat()
-	totalVat := p.TotalVat()
-	if exVat != 10000 {
-		t.Errorf("expected exVat 10000, got %d", exVat)
-	}
-	if totalVat != 3700 {
-		t.Errorf("expected totalVat 3700, got %d", totalVat)
-	}
-	if exVat+totalVat != p.IncVat {
-		t.Errorf("exVat + totalVat should equal IncVat: %d + %d != %d", exVat, totalVat, p.IncVat)
-	}
-
-	// Empty VAT rates
-	p2 := Price{IncVat: 500, VatRates: nil}
-	if p2.ValueExVat() != 500 {
-		t.Errorf("expected exVat 500 for no VAT, got %d", p2.ValueExVat())
-	}
-	if p2.TotalVat() != 0 {
-		t.Errorf("expected totalVat 0, got %d", p2.TotalVat())
-	}
-}
-
-func TestMultiplyPriceWithZeroQty(t *testing.T) {
-	base := Price{IncVat: 1250, VatRates: map[float32]int64{25: 250}}
-	multiplied := MultiplyPrice(base, 0)
-	if multiplied.IncVat != 0 {
-		t.Errorf("expected IncVat 0, got %d", multiplied.IncVat)
-	}
-	if len(multiplied.VatRates) != 1 || multiplied.VatRates[25] != 0 {
-		t.Errorf("expected VAT 0, got %v", multiplied.VatRates)
-	}
-}
-
-func TestPriceAddSubtractEdgeCases(t *testing.T) {
-	a := Price{IncVat: 1000, VatRates: map[float32]int64{25: 200}}
-	b := Price{IncVat: 500, VatRates: map[float32]int64{12: 54}} // Different rate
-
-	acc := NewPrice()
-	acc.Add(a)
-	acc.Add(b)
-
-	if acc.VatRates[25] != 200 || acc.VatRates[12] != 54 {
-		t.Errorf("expected VAT 25:200, 12:54, got %v", acc.VatRates)
-	}
-
-	// Subtract more than added (negative VAT)
-	acc.Subtract(a)
-	acc.Subtract(b)
-	acc.Subtract(a) // Subtract extra a
-	if acc.VatRates[25] != -200 || acc.VatRates[12] != 0 {
-		t.Errorf("expected negative VAT for 25 after over-subtract, got %v", acc.VatRates)
-	}
-}

cmd/cart/product-fetcher.go

@@ -1,12 +1,12 @@
 package main
 
 import (
-	"context"
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"strconv"
+	"strings"
 
-	"git.tornberg.me/go-cart-actor/pkg/cart"
 	messages "git.tornberg.me/go-cart-actor/pkg/messages"
 	"github.com/matst80/slask-finder/pkg/index"
 )
@@ -25,16 +25,9 @@ func getBaseUrl(country string) string {
 	return "http://localhost:8082"
 }
 
-func FetchItem(ctx context.Context, sku string, country string) (*index.DataItem, error) {
+func FetchItem(sku string, country string) (*index.DataItem, error) {
 	baseUrl := getBaseUrl(country)
-	req, err := http.NewRequest("GET", fmt.Sprintf("%s/api/by-sku/%s", baseUrl, sku), nil)
-	innerCtx, span := tracer.Start(ctx, fmt.Sprintf("fetching data for %s", sku))
-	defer span.End()
-	req = req.WithContext(innerCtx)
-	if err != nil {
-		return nil, err
-	}
-	res, err := http.DefaultClient.Do(req)
+	res, err := http.Get(fmt.Sprintf("%s/api/by-sku/%s", baseUrl, sku))
 	if err != nil {
 		return nil, err
 	}
@@ -44,46 +37,36 @@ func FetchItem(ctx context.Context, sku string, country string) (*index.DataItem
 	return &item, err
 }
 
-func GetItemAddMessage(ctx context.Context, sku string, qty int, country string, storeId *string) (*messages.AddItem, error) {
-	item, err := FetchItem(ctx, sku, country)
+func GetItemAddMessage(sku string, qty int, country string, storeId *string) (*messages.AddItem, error) {
+	item, err := FetchItem(sku, country)
 	if err != nil {
 		return nil, err
 	}
-	return ToItemAddMessage(item, storeId, qty, country)
+	return ToItemAddMessage(item, storeId, qty, country), nil
 }
 
-func ToItemAddMessage(item *index.DataItem, storeId *string, qty int, country string) (*messages.AddItem, error) {
+func ToItemAddMessage(item *index.DataItem, storeId *string, qty int, country string) *messages.AddItem {
 	orgPrice, _ := getInt(item.GetNumberFieldValue(5)) // getInt(item.Fields[5])
 
 	price, err := getInt(item.GetNumberFieldValue(4)) //Fields[4]
 	if err != nil {
-		return nil, err
+		return nil
 	}
-	stk := item.GetStock()
-	stock := cart.StockStatus(0)
 
+	stock := StockStatus(0)
+	centralStockValue, ok := item.GetStringFieldValue(3)
 	if storeId == nil {
-		centralStock, ok := stk[country]
 		if ok {
-			if !item.Buyable {
-				return nil, fmt.Errorf("item not available")
+			pureNumber := strings.Replace(centralStockValue, "+", "", -1)
+			if centralStock, err := strconv.ParseInt(pureNumber, 10, 64); err == nil {
+				stock = StockStatus(centralStock)
 			}
-
-			if centralStock == 0 && item.SaleStatus == "TBD" {
-				return nil, fmt.Errorf("no items available")
-			}
-			stock = cart.StockStatus(centralStock)
 		}
-
 	} else {
-		if !item.BuyableInStore {
-			return nil, fmt.Errorf("item not available in store")
-		}
-		storeStock, ok := stk[*storeId]
+		storeStock, ok := item.Stock.GetStock()[*storeId]
 		if ok {
-			stock = cart.StockStatus(storeStock)
+			stock = StockStatus(storeStock)
 		}
-
 	}
 
 	articleType, _ := item.GetStringFieldValue(1)   //.Fields[1].(string)
@@ -102,8 +85,6 @@ func ToItemAddMessage(item *index.DataItem, storeId *string, qty int, country st
 	category4, _ := item.GetStringFieldValue(13) //Fields[13].(string)
 	category5, _ := item.GetStringFieldValue(14) //.Fields[14].(string)
 
-	cgm, _ := item.GetStringFieldValue(35) // Customer Group Membership
-
 	return &messages.AddItem{
 		ItemId:      uint32(item.Id),
 		Quantity:    int32(qty),
@@ -127,9 +108,7 @@ func ToItemAddMessage(item *index.DataItem, storeId *string, qty int, country st
 		Country:     country,
 		Outlet:      outlet,
 		StoreId:     storeId,
-		SaleStatus:  item.SaleStatus,
-		Cgm:         cgm,
-	}, nil
+	}
 }
 
 func getTax(articleType string) int32 {
@@ -140,10 +119,3 @@ func getTax(articleType string) int32 {
 		return 2500
 	}
 }
-
-func getInt(data float64, ok bool) (int, error) {
-	if !ok {
-		return 0, fmt.Errorf("invalid type")
-	}
-	return int(data), nil
-}

cmd/inventory/main.go

@@ -1,143 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"log"
-	"net/http"
-	"os"
-	"strings"
-	"sync"
-
-	"git.tornberg.me/mats/go-redis-inventory/pkg/inventory"
-	"github.com/matst80/slask-finder/pkg/index"
-	"github.com/matst80/slask-finder/pkg/messaging"
-	"github.com/redis/go-redis/v9"
-	"github.com/redis/go-redis/v9/maintnotifications"
-
-	amqp "github.com/rabbitmq/amqp091-go"
-)
-
-type Server struct {
-	service *inventory.RedisInventoryService
-}
-
-func (srv *Server) livezHandler(w http.ResponseWriter, r *http.Request) {
-	w.WriteHeader(http.StatusOK)
-	w.Write([]byte("OK"))
-}
-
-func (srv *Server) readyzHandler(w http.ResponseWriter, r *http.Request) {
-	w.WriteHeader(http.StatusOK)
-	w.Write([]byte("OK"))
-}
-
-func (srv *Server) getInventoryHandler(w http.ResponseWriter, r *http.Request) {
-	// Parse path: /inventory/{sku}/{location}
-	path := r.URL.Path
-	parts := strings.Split(strings.Trim(path, "/"), "/")
-	if len(parts) != 3 || parts[0] != "inventory" {
-		http.Error(w, "Invalid path", http.StatusBadRequest)
-		return
-	}
-	sku := inventory.SKU(parts[1])
-	locationID := inventory.LocationID(parts[2])
-
-	quantity, err := srv.service.GetInventory(r.Context(), sku, locationID)
-	if err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-
-	response := map[string]int64{"quantity": quantity}
-	w.Header().Set("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(response)
-}
-
-var country = "se"
-var redisAddress = "10.10.3.18:6379"
-var redisPassword = "slaskredis"
-
-func init() {
-	// Override redis config from environment variables if set
-	if addr, ok := os.LookupEnv("REDIS_ADDRESS"); ok {
-		redisAddress = addr
-	}
-	if password, ok := os.LookupEnv("REDIS_PASSWORD"); ok {
-		redisPassword = password
-	}
-	if ctry, ok := os.LookupEnv("COUNTRY"); ok {
-		country = ctry
-	}
-}
-
-func main() {
-	var ctx = context.Background()
-	rdb := redis.NewClient(&redis.Options{
-		Addr:     redisAddress,
-		Password: redisPassword, // no password set
-		DB:       0,             // use default DB
-		MaintNotificationsConfig: &maintnotifications.Config{
-			Mode: maintnotifications.ModeDisabled,
-		},
-	})
-	s, err := inventory.NewRedisInventoryService(rdb)
-	if err != nil {
-		log.Fatalf("Unable to connect to inventory redis: %v", err)
-		return
-	}
-
-	server := &Server{service: s}
-
-	// Set up HTTP routes
-	http.HandleFunc("/livez", server.livezHandler)
-	http.HandleFunc("/readyz", server.readyzHandler)
-	http.HandleFunc("/inventory/", server.getInventoryHandler)
-
-	stockhandler := &StockHandler{
-		MainStockLocationID: inventory.LocationID(country),
-		rdb:                 rdb,
-		ctx:                 ctx,
-		svc:                 *s,
-	}
-
-	amqpUrl, ok := os.LookupEnv("RABBIT_HOST")
-	if ok {
-		log.Printf("Connecting to rabbitmq")
-		conn, err := amqp.DialConfig(amqpUrl, amqp.Config{
-			Properties: amqp.NewConnectionProperties(),
-		})
-		//a.conn = conn
-		if err != nil {
-			log.Fatalf("Failed to connect to RabbitMQ: %v", err)
-		}
-		ch, err := conn.Channel()
-		if err != nil {
-			log.Fatalf("Failed to open a channel: %v", err)
-		}
-		// items listener
-		err = messaging.ListenToTopic(ch, country, "item_added", func(d amqp.Delivery) error {
-			var items []*index.DataItem
-			err := json.Unmarshal(d.Body, &items)
-			if err == nil {
-				log.Printf("Got upserts %d, message count %d", len(items), d.MessageCount)
-				wg := &sync.WaitGroup{}
-				for _, item := range items {
-					stockhandler.HandleItem(item, wg)
-				}
-				wg.Wait()
-				log.Print("Batch done...")
-			} else {
-				log.Printf("Failed to unmarshal upsert message %v", err)
-			}
-			return err
-		})
-		if err != nil {
-			log.Fatalf("Failed to listen to item_added topic: %v", err)
-		}
-	}
-
-	// Start HTTP server
-	log.Println("Starting HTTP server on :8080")
-	log.Fatal(http.ListenAndServe(":8080", nil))
-}

cmd/inventory/stockhandler.go

@@ -1,49 +0,0 @@
-package main
-
-import (
-	"context"
-	"log"
-	"strconv"
-	"strings"
-	"sync"
-
-	"git.tornberg.me/mats/go-redis-inventory/pkg/inventory"
-	"github.com/matst80/slask-finder/pkg/types"
-	"github.com/redis/go-redis/v9"
-)
-
-type StockHandler struct {
-	rdb                 *redis.Client
-	ctx                 context.Context
-	svc                 inventory.RedisInventoryService
-	MainStockLocationID inventory.LocationID
-}
-
-func (s *StockHandler) HandleItem(item types.Item, wg *sync.WaitGroup) {
-	wg.Go(func() {
-		ctx := s.ctx
-		pipe := s.rdb.Pipeline()
-		centralStockString, ok := item.GetStringFieldValue(3)
-		if !ok {
-			centralStockString = "0"
-		}
-		centralStockString = strings.Replace(centralStockString, "+", "", -1)
-		centralStockString = strings.Replace(centralStockString, "<", "", -1)
-		centralStockString = strings.Replace(centralStockString, ">", "", -1)
-		centralStock, err := strconv.ParseInt(centralStockString, 10, 64)
-
-		if err != nil {
-			log.Printf("unable to parse central stock for item %s: %v", item.GetSku(), err)
-			centralStock = 0
-		} else {
-			s.svc.UpdateInventory(ctx, pipe, inventory.SKU(item.GetSku()), s.MainStockLocationID, int64(centralStock))
-		}
-		for id, value := range item.GetStock() {
-			s.svc.UpdateInventory(ctx, pipe, inventory.SKU(item.GetSku()), inventory.LocationID(id), int64(value))
-		}
-		_, err = pipe.Exec(ctx)
-		if err != nil {
-			log.Printf("unable to update stock: %v", err)
-		}
-	})
-}

deployment/deployment.yaml

@@ -9,92 +9,6 @@ type: Opaque
 ---
 apiVersion: apps/v1
 kind: Deployment
-metadata:
-  labels:
-    app: cart-backoffice
-    arch: amd64
-  name: cart-backoffice-x86
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: cart-backoffice
-      arch: amd64
-  template:
-    metadata:
-      labels:
-        app: cart-backoffice
-        arch: amd64
-    spec:
-      affinity:
-        nodeAffinity:
-          requiredDuringSchedulingIgnoredDuringExecution:
-            nodeSelectorTerms:
-              - matchExpressions:
-                  - key: kubernetes.io/arch
-                    operator: NotIn
-                    values:
-                      - arm64
-      volumes:
-        - name: data
-          nfs:
-            path: /i-data/7a8af061/nfs/cart-actor
-            server: 10.10.1.10
-      serviceAccountName: default
-      containers:
-        - image: registry.k6n.net/go-cart-actor-amd64:latest
-          name: cart-actor-amd64
-          imagePullPolicy: Always
-          command: ["/go-cart-backoffice"]
-          lifecycle:
-            preStop:
-              exec:
-                command: ["sleep", "15"]
-          ports:
-            - containerPort: 8080
-              name: web
-          livenessProbe:
-            httpGet:
-              path: /livez
-              port: web
-            failureThreshold: 1
-            periodSeconds: 30
-          readinessProbe:
-            httpGet:
-              path: /readyz
-              port: web
-            failureThreshold: 2
-            initialDelaySeconds: 2
-            periodSeconds: 30
-          volumeMounts:
-            - mountPath: "/data"
-              name: data
-          resources:
-            limits:
-              memory: "768Mi"
-            requests:
-              memory: "70Mi"
-              cpu: "1200m"
-          env:
-            - name: TZ
-              value: "Europe/Stockholm"
-            - name: KLARNA_API_USERNAME
-              valueFrom:
-                secretKeyRef:
-                  name: klarna-api-credentials
-                  key: username
-            - name: KLARNA_API_PASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: klarna-api-credentials
-                  key: password
-            - name: AMQP_URL
-              value: "amqp://admin:12bananer@rabbitmq.dev:5672/"
-            # - name: BASE_URL
-            #   value: "https://s10n-no.tornberg.me"
----
-apiVersion: apps/v1
-kind: Deployment
 metadata:
   labels:
     app: cart-actor
@@ -127,9 +41,11 @@ spec:
           nfs:
             path: /i-data/7a8af061/nfs/cart-actor
             server: 10.10.1.10
+      imagePullSecrets:
+        - name: regcred
       serviceAccountName: default
       containers:
-        - image: registry.k6n.net/go-cart-actor-amd64:latest
+        - image: registry.knatofs.se/go-cart-actor-amd64:latest
           name: cart-actor-amd64
           imagePullPolicy: Always
           lifecycle:
@@ -139,8 +55,6 @@ spec:
           ports:
             - containerPort: 8080
               name: web
-            - containerPort: 8081
-              name: debug
             - containerPort: 1337
               name: rpc
           livenessProbe:
@@ -148,14 +62,14 @@ spec:
               path: /livez
               port: web
             failureThreshold: 1
-            periodSeconds: 30
+            periodSeconds: 10
           readinessProbe:
             httpGet:
               path: /readyz
               port: web
             failureThreshold: 2
             initialDelaySeconds: 2
-            periodSeconds: 50
+            periodSeconds: 10
           volumeMounts:
             - mountPath: "/data"
               name: data
@@ -173,14 +87,6 @@ spec:
                 secretKeyRef:
                   name: klarna-api-credentials
                   key: username
-            - name: REDIS_ADDRESS
-              value: "10.10.3.18:6379"
-            - name: REDIS_PASSWORD
-              value: "slaskredis"
-            - name: OTEL_RESOURCE_ATTRIBUTES
-              value: "service.name=cart,service.version=0.1.2"
-            - name: OTEL_EXPORTER_OTLP_ENDPOINT
-              value: "http://otel-debug-service.monitoring:4317"
             - name: KLARNA_API_PASSWORD
               valueFrom:
                 secretKeyRef:
@@ -237,9 +143,11 @@ spec:
           nfs:
             path: /i-data/7a8af061/nfs/cart-actor
             server: 10.10.1.10
+      imagePullSecrets:
+        - name: regcred
       serviceAccountName: default
       containers:
-        - image: registry.k6n.net/go-cart-actor:latest
+        - image: registry.knatofs.se/go-cart-actor:latest
           name: cart-actor-arm64
           imagePullPolicy: Always
           lifecycle:
@@ -249,8 +157,6 @@ spec:
           ports:
             - containerPort: 8080
               name: web
-            - containerPort: 8081
-              name: debug
             - containerPort: 1337
               name: rpc
           livenessProbe:
@@ -258,14 +164,14 @@ spec:
               path: /livez
               port: web
             failureThreshold: 1
-            periodSeconds: 30
+            periodSeconds: 10
           readinessProbe:
             httpGet:
               path: /readyz
               port: web
             failureThreshold: 2
             initialDelaySeconds: 2
-            periodSeconds: 30
+            periodSeconds: 10
           volumeMounts:
             - mountPath: "/data"
               name: data
@@ -278,14 +184,6 @@ spec:
           env:
             - name: TZ
               value: "Europe/Stockholm"
-            - name: REDIS_ADDRESS
-              value: "redis.home:6379"
-            - name: REDIS_PASSWORD
-              value: "slaskredis"
-            - name: OTEL_RESOURCE_ATTRIBUTES
-              value: "service.name=cart,service.version=0.1.2"
-            - name: OTEL_EXPORTER_OTLP_ENDPOINT
-              value: "http://otel-debug-service.monitoring:4317"
             - name: KLARNA_API_USERNAME
               valueFrom:
                 secretKeyRef:
@@ -314,7 +212,7 @@ apiVersion: v1
 metadata:
   name: cart-actor
   annotations:
-    prometheus.io/port: "8081"
+    prometheus.io/port: "8080"
     prometheus.io/scrape: "true"
     prometheus.io/path: "/metrics"
 spec:
@@ -324,17 +222,6 @@ spec:
     - name: web
       port: 8080
 ---
-kind: Service
-apiVersion: v1
-metadata:
-  name: cart-backoffice
-spec:
-  selector:
-    app: cart-backoffice
-  ports:
-    - name: web
-      port: 8080
----
 apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
@@ -350,10 +237,10 @@ spec:
   ingressClassName: nginx
   tls:
     - hosts:
-        - cart.k6n.net
+        - cart.tornberg.me
       secretName: cart-actor-tls-secret
   rules:
-    - host: cart.k6n.net
+    - host: cart.tornberg.me
       http:
         paths:
           - path: /
@@ -363,98 +250,3 @@ spec:
                 name: cart-actor
                 port:
                   number: 8080
----
-apiVersion: networking.k8s.io/v1
-kind: Ingress
-metadata:
-  name: cart-backend-ingress
-  annotations:
-    cert-manager.io/cluster-issuer: letsencrypt-prod
-spec:
-  ingressClassName: nginx
-  tls:
-    - hosts:
-        - slask-cart.k6n.net
-      secretName: cart-backoffice-actor-tls-secret
-  rules:
-    - host: slask-cart.k6n.net
-      http:
-        paths:
-          - path: /
-            pathType: Prefix
-            backend:
-              service:
-                name: cart-backoffice
-                port:
-                  number: 8080
----
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  labels:
-    app: cart-inventory
-    arch: amd64
-  name: cart-inventory-x86
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: cart-inventory
-      arch: amd64
-  template:
-    metadata:
-      labels:
-        app: cart-inventory
-        arch: amd64
-    spec:
-      affinity:
-        nodeAffinity:
-          requiredDuringSchedulingIgnoredDuringExecution:
-            nodeSelectorTerms:
-              - matchExpressions:
-                  - key: kubernetes.io/arch
-                    operator: NotIn
-                    values:
-                      - arm64
-      serviceAccountName: default
-      containers:
-        - image: registry.k6n.net/go-cart-actor-amd64:latest
-          name: cart-inventory-amd64
-          imagePullPolicy: Always
-          command: ["/go-cart-inventory"]
-          lifecycle:
-            preStop:
-              exec:
-                command: ["sleep", "15"]
-          ports:
-            - containerPort: 8080
-              name: web
-          livenessProbe:
-            httpGet:
-              path: /livez
-              port: web
-            failureThreshold: 1
-            periodSeconds: 30
-          readinessProbe:
-            httpGet:
-              path: /readyz
-              port: web
-            failureThreshold: 2
-            initialDelaySeconds: 2
-            periodSeconds: 30
-          resources:
-            limits:
-              memory: "256Mi"
-              cpu: "500m"
-            requests:
-              memory: "50Mi"
-              cpu: "500m"
-          env:
-            - name: TZ
-              value: "Europe/Stockholm"
-            - name: RABBIT_HOST
-              value: amqp://admin:12bananer@rabbitmq.s10n:5672/
-            - name: REDIS_ADDRESS
-              value: "redis.home:6379"
-            - name: REDIS_PASSWORD
-              value: "slaskredis"

go.mod

@@ -1,106 +1,81 @@
 module git.tornberg.me/go-cart-actor
 
-go 1.25.3
+go 1.25.1
 
 require (
-	git.tornberg.me/mats/go-redis-inventory v0.0.0-20251113201741-8bf0efac50ee
 	github.com/gogo/protobuf v1.3.2
 	github.com/google/uuid v1.6.0
-	github.com/matst80/slask-finder v0.0.0-20251118173753-f66c21cfbda4
+	github.com/matst80/slask-finder v0.0.0-20251009175145-ce05aff5a548
 	github.com/prometheus/client_golang v1.23.2
 	github.com/rabbitmq/amqp091-go v1.10.0
-	github.com/redis/go-redis/v9 v9.16.0
-	go.opentelemetry.io/contrib/bridges/otelslog v0.13.0
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0
-	go.opentelemetry.io/otel v1.38.0
-	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.14.0
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.38.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.38.0
-	go.opentelemetry.io/otel/log v0.14.0
-	go.opentelemetry.io/otel/metric v1.38.0
-	go.opentelemetry.io/otel/sdk v1.38.0
-	go.opentelemetry.io/otel/sdk/log v0.14.0
-	go.opentelemetry.io/otel/sdk/metric v1.38.0
-	go.opentelemetry.io/otel/trace v1.38.0
-	google.golang.org/grpc v1.77.0
+	google.golang.org/grpc v1.76.0
 	google.golang.org/protobuf v1.36.10
-	k8s.io/api v0.34.2
-	k8s.io/apimachinery v0.34.2
-	k8s.io/client-go v0.34.2
+	k8s.io/api v0.34.1
+	k8s.io/apimachinery v0.34.1
+	k8s.io/client-go v0.34.1
 )
 
 require (
-	github.com/RoaringBitmap/roaring/v2 v2.14.4 // indirect
+	github.com/RoaringBitmap/roaring/v2 v2.10.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/bits-and-blooms/bitset v1.24.4 // indirect
-	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
+	github.com/bits-and-blooms/bitset v1.24.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
-	github.com/dprotaso/go-yit v0.0.0-20251117151522-da16f3077589 // indirect
+	github.com/dprotaso/go-yit v0.0.0-20220510233725-9ba8df137936 // indirect
 	github.com/emicklei/go-restful/v3 v3.13.0 // indirect
-	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
-	github.com/getkin/kin-openapi v0.133.0 // indirect
+	github.com/getkin/kin-openapi v0.132.0 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
-	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/go-openapi/jsonpointer v0.22.3 // indirect
-	github.com/go-openapi/jsonreference v0.21.3 // indirect
-	github.com/go-openapi/swag v0.25.3 // indirect
-	github.com/go-openapi/swag/cmdutils v0.25.3 // indirect
-	github.com/go-openapi/swag/conv v0.25.3 // indirect
-	github.com/go-openapi/swag/fileutils v0.25.3 // indirect
-	github.com/go-openapi/swag/jsonname v0.25.3 // indirect
-	github.com/go-openapi/swag/jsonutils v0.25.3 // indirect
-	github.com/go-openapi/swag/loading v0.25.3 // indirect
-	github.com/go-openapi/swag/mangling v0.25.3 // indirect
-	github.com/go-openapi/swag/netutils v0.25.3 // indirect
-	github.com/go-openapi/swag/stringutils v0.25.3 // indirect
-	github.com/go-openapi/swag/typeutils v0.25.3 // indirect
-	github.com/go-openapi/swag/yamlutils v0.25.3 // indirect
+	github.com/go-openapi/jsonpointer v0.22.1 // indirect
+	github.com/go-openapi/jsonreference v0.21.2 // indirect
+	github.com/go-openapi/swag v0.25.1 // indirect
+	github.com/go-openapi/swag/cmdutils v0.25.1 // indirect
+	github.com/go-openapi/swag/conv v0.25.1 // indirect
+	github.com/go-openapi/swag/fileutils v0.25.1 // indirect
+	github.com/go-openapi/swag/jsonname v0.25.1 // indirect
+	github.com/go-openapi/swag/jsonutils v0.25.1 // indirect
+	github.com/go-openapi/swag/loading v0.25.1 // indirect
+	github.com/go-openapi/swag/mangling v0.25.1 // indirect
+	github.com/go-openapi/swag/netutils v0.25.1 // indirect
+	github.com/go-openapi/swag/stringutils v0.25.1 // indirect
+	github.com/go-openapi/swag/typeutils v0.25.1 // indirect
+	github.com/go-openapi/swag/yamlutils v0.25.1 // indirect
 	github.com/google/gnostic-models v0.7.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/gorilla/schema v1.4.1 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/mailru/easyjson v0.9.1 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
 	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 // indirect
 	github.com/mschoch/smat v0.2.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/oapi-codegen/oapi-codegen/v2 v2.5.1 // indirect
+	github.com/oapi-codegen/oapi-codegen/v2 v2.5.0 // indirect
 	github.com/oasdiff/yaml v0.0.0-20250309154309-f31be36b4037 // indirect
 	github.com/oasdiff/yaml3 v0.0.0-20250309153720-d2182401db90 // indirect
 	github.com/perimeterx/marshmallow v1.1.5 // indirect
-	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
-	github.com/prometheus/common v0.67.3 // indirect
-	github.com/prometheus/procfs v0.19.2 // indirect
-	github.com/speakeasy-api/jsonpath v0.6.2 // indirect
-	github.com/speakeasy-api/openapi-overlay v0.10.3 // indirect
-	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/prometheus/common v0.67.1 // indirect
+	github.com/prometheus/procfs v0.17.0 // indirect
+	github.com/speakeasy-api/jsonpath v0.6.0 // indirect
+	github.com/speakeasy-api/openapi-overlay v0.10.2 // indirect
+	github.com/spf13/pflag v1.0.6 // indirect
 	github.com/vmware-labs/yaml-jsonpath v0.3.2 // indirect
-	github.com/woodsbury/decimal128 v1.3.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
-	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.38.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.9.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.3 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	go.yaml.in/yaml/v4 v4.0.0-rc.3 // indirect
-	golang.org/x/mod v0.30.0 // indirect
-	golang.org/x/net v0.47.0 // indirect
-	golang.org/x/oauth2 v0.33.0 // indirect
-	golang.org/x/sync v0.18.0 // indirect
-	golang.org/x/sys v0.38.0 // indirect
-	golang.org/x/term v0.37.0 // indirect
-	golang.org/x/text v0.31.0 // indirect
+	golang.org/x/mod v0.28.0 // indirect
+	golang.org/x/net v0.46.0 // indirect
+	golang.org/x/oauth2 v0.32.0 // indirect
+	golang.org/x/sync v0.17.0 // indirect
+	golang.org/x/sys v0.37.0 // indirect
+	golang.org/x/term v0.36.0 // indirect
+	golang.org/x/text v0.30.0 // indirect
 	golang.org/x/time v0.14.0 // indirect
-	golang.org/x/tools v0.39.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20251111163417-95abcf5c77ba // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20251111163417-95abcf5c77ba // indirect
+	golang.org/x/tools v0.37.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251007200510-49b9836ed3ff // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect

go.sum

@@ -1,78 +1,67 @@
-git.tornberg.me/mats/go-redis-inventory v0.0.0-20251113201741-8bf0efac50ee h1:9K/INdO9y/hAjlERsYkJWAla6BUEAPXtChVLfYtWdGI=
-git.tornberg.me/mats/go-redis-inventory v0.0.0-20251113201741-8bf0efac50ee/go.mod h1:jrDU55O7sdN2RJr99upmig/FAla/mW1Cdju7834TXug=
-github.com/RoaringBitmap/roaring/v2 v2.14.4 h1:4aKySrrg9G/5oRtJ3TrZLObVqxgQ9f1znCRBwEwjuVw=
-github.com/RoaringBitmap/roaring/v2 v2.14.4/go.mod h1:oMvV6omPWr+2ifRdeZvVJyaz+aoEUopyv5iH0u/+wbY=
+github.com/RoaringBitmap/roaring/v2 v2.10.0 h1:HbJ8Cs71lfCJyvmSptxeMX2PtvOC8yonlU0GQcy2Ak0=
+github.com/RoaringBitmap/roaring/v2 v2.10.0/go.mod h1:FiJcsfkGje/nZBZgCu0ZxCPOKD/hVXDS2dXi7/eUFE0=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/bits-and-blooms/bitset v1.24.4 h1:95H15Og1clikBrKr/DuzMXkQzECs1M6hhoGXLwLQOZE=
-github.com/bits-and-blooms/bitset v1.24.4/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
-github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
-github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
-github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
-github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
-github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
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-google.golang.org/genproto/googleapis/rpc v0.0.0-20251111163417-95abcf5c77ba h1:UKgtfRM7Yh93Sya0Fo8ZzhDP4qBckrrxEr2oF5UIVb8=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20251111163417-95abcf5c77ba/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
-google.golang.org/grpc v1.77.0 h1:wVVY6/8cGA6vvffn+wWK5ToddbgdU3d8MNENr4evgXM=
-google.golang.org/grpc v1.77.0/go.mod h1:z0BY1iVj0q8E1uSQCjL9cppRj+gnZjzDnzV0dHhrNig=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251007200510-49b9836ed3ff h1:A90eA31Wq6HOMIQlLfzFwzqGKBTuaVztYu/g8sn+8Zc=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251007200510-49b9836ed3ff/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
+google.golang.org/grpc v1.76.0 h1:UnVkv1+uMLYXoIz6o7chp59WfQUYA2ex/BXQ9rHZu7A=
+google.golang.org/grpc v1.76.0/go.mod h1:Ju12QI8M6iQJtbcsV+awF5a4hfJMLi4X0JLo94ULZ6c=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
 google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -301,18 +307,20 @@ gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWD
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20191026110619-0b21df46bc1d/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-k8s.io/api v0.34.2 h1:fsSUNZhV+bnL6Aqrp6O7lMTy6o5x2C4XLjnh//8SLYY=
-k8s.io/api v0.34.2/go.mod h1:MMBPaWlED2a8w4RSeanD76f7opUoypY8TFYkSM+3XHw=
-k8s.io/apimachinery v0.34.2 h1:zQ12Uk3eMHPxrsbUJgNF8bTauTVR2WgqJsTmwTE/NW4=
-k8s.io/apimachinery v0.34.2/go.mod h1:/GwIlEcWuTX9zKIg2mbw0LRFIsXwrfoVxn+ef0X13lw=
-k8s.io/client-go v0.34.2 h1:Co6XiknN+uUZqiddlfAjT68184/37PS4QAzYvQvDR8M=
-k8s.io/client-go v0.34.2/go.mod h1:2VYDl1XXJsdcAxw7BenFslRQX28Dxz91U9MWKjX97fE=
+k8s.io/api v0.34.1 h1:jC+153630BMdlFukegoEL8E/yT7aLyQkIVuwhmwDgJM=
+k8s.io/api v0.34.1/go.mod h1:SB80FxFtXn5/gwzCoN6QCtPD7Vbu5w2n1S0J5gFfTYk=
+k8s.io/apimachinery v0.34.1 h1:dTlxFls/eikpJxmAC7MVE8oOeP1zryV7iRyIjB0gky4=
+k8s.io/apimachinery v0.34.1/go.mod h1:/GwIlEcWuTX9zKIg2mbw0LRFIsXwrfoVxn+ef0X13lw=
+k8s.io/client-go v0.34.1 h1:ZUPJKgXsnKwVwmKKdPfw4tB58+7/Ik3CrjOEhsiZ7mY=
+k8s.io/client-go v0.34.1/go.mod h1:kA8v0FP+tk6sZA0yKLRG67LWjqufAoSHA2xVGKw9Of8=
 k8s.io/klog/v2 v2.130.1 h1:n9Xl7H1Xvksem4KFG4PYbdQCQxqc/tTUyrgXaOhHSzk=
 k8s.io/klog/v2 v2.130.1/go.mod h1:3Jpz1GvMt720eyJH1ckRHK1EDfpxISzJ7I9OYgaDtPE=
 k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912 h1:Y3gxNAuB0OBLImH611+UDZcmKS3g6CthxToOb37KgwE=

pkg/actor/disk_storage.go

@@ -1,7 +1,6 @@
 package actor
 
 import (
-	"context"
 	"errors"
 	"fmt"
 	"log"
@@ -26,9 +25,8 @@ type DiskStorage[V any] struct {
 }
 
 type LogStorage[V any] interface {
-	LoadEvents(ctx context.Context, id uint64, grain Grain[V]) error
-	LoadEventsFunc(ctx context.Context, id uint64, grain Grain[V], condition func(msg proto.Message, index int, timeStamp time.Time) bool) error
-	AppendMutations(id uint64, msg ...proto.Message) error
+	LoadEvents(id uint64, grain Grain[V]) error
+	AppendEvent(id uint64, msg ...proto.Message) error
 }
 
 func NewDiskStorage[V any](path string, registry MutationRegistry) *DiskStorage[V] {
@@ -88,7 +86,7 @@ func (s *DiskStorage[V]) logPath(id uint64) string {
 	return filepath.Join(s.path, fmt.Sprintf("%d.events.log", id))
 }
 
-func (s *DiskStorage[V]) LoadEventsFunc(ctx context.Context, id uint64, grain Grain[V], condition func(msg proto.Message, index int, timeStamp time.Time) bool) error {
+func (s *DiskStorage[V]) LoadEvents(id uint64, grain Grain[V]) error {
 	path := s.logPath(id)
 	if _, err := os.Stat(path); errors.Is(err, os.ErrNotExist) {
 		// No log -> nothing to replay
@@ -100,40 +98,17 @@ func (s *DiskStorage[V]) LoadEventsFunc(ctx context.Context, id uint64, grain Gr
 		return fmt.Errorf("open replay file: %w", err)
 	}
 	defer fh.Close()
-	index := 0
-	return s.Load(fh, func(msg proto.Message, when time.Time) {
-		if condition(msg, index, when) {
-			s.registry.Apply(ctx, grain, msg)
-		}
-		index++
-	})
-}
-
-func (s *DiskStorage[V]) LoadEvents(ctx context.Context, id uint64, grain Grain[V]) error {
-	path := s.logPath(id)
-	if _, err := os.Stat(path); errors.Is(err, os.ErrNotExist) {
-		// No log -> nothing to replay
-		return nil
-	}
-
-	fh, err := os.Open(path)
-	if err != nil {
-		return fmt.Errorf("open replay file: %w", err)
-	}
-	defer fh.Close()
-	return s.Load(fh, func(msg proto.Message, _ time.Time) {
-		s.registry.Apply(ctx, grain, msg)
+	return s.Load(fh, func(msg proto.Message) {
+		s.registry.Apply(grain, msg)
 	})
 }
 
 func (s *DiskStorage[V]) Close() {
-	if s.queue != nil {
-		s.save()
-	}
+	s.save()
 	close(s.done)
 }
 
-func (s *DiskStorage[V]) AppendMutations(id uint64, msg ...proto.Message) error {
+func (s *DiskStorage[V]) AppendEvent(id uint64, msg ...proto.Message) error {
 	if s.queue != nil {
 		queue := make([]QueueEvent, 0)
 		data, found := s.queue.Load(id)

pkg/actor/grain_pool.go

@@ -1,7 +1,6 @@
 package actor
 
 import (
-	"context"
 	"net/http"
 
 	"github.com/gogo/protobuf/proto"
@@ -13,8 +12,8 @@ type MutationResult[V any] struct {
 }
 
 type GrainPool[V any] interface {
-	Apply(ctx context.Context, id uint64, mutation ...proto.Message) (*MutationResult[V], error)
-	Get(ctx context.Context, id uint64) (V, error)
+	Apply(id uint64, mutation ...proto.Message) (*MutationResult[V], error)
+	Get(id uint64) (V, error)
 	OwnerHost(id uint64) (Host, bool)
 	Hostname() string
 	TakeOwnership(id uint64)
@@ -23,10 +22,8 @@ type GrainPool[V any] interface {
 	Negotiate(otherHosts []string)
 	GetLocalIds() []uint64
 	RemoveHost(host string)
-	AddRemoteHost(host string)
 	IsHealthy() bool
 	IsKnown(string) bool
-	GetPubSub() *PubSub
 	Close()
 }
 

pkg/actor/grpc_server.go

@@ -8,10 +8,6 @@ import (
 	"time"
 
 	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-	"go.opentelemetry.io/contrib/bridges/otelslog"
-	"go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/attribute"
-	"go.opentelemetry.io/otel/metric"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
 )
@@ -20,77 +16,13 @@ import (
 // It delegates to a grain pool and cluster operations to a synced pool.
 type ControlServer[V any] struct {
 	messages.UnimplementedControlPlaneServer
+
 	pool GrainPool[V]
 }
 
-const name = "grpc_server"
-
-var (
-	tracer                 = otel.Tracer(name)
-	meter                  = otel.Meter(name)
-	logger                 = otelslog.NewLogger(name)
-	pingCalls              metric.Int64Counter
-	negotiateCalls         metric.Int64Counter
-	getLocalActorIdsCalls  metric.Int64Counter
-	announceOwnershipCalls metric.Int64Counter
-	announceExpiryCalls    metric.Int64Counter
-	closingCalls           metric.Int64Counter
-)
-
-func init() {
-	var err error
-	pingCalls, err = meter.Int64Counter("grpc.ping_calls",
-		metric.WithDescription("Number of ping calls"),
-		metric.WithUnit("{calls}"))
-	if err != nil {
-		panic(err)
-	}
-	negotiateCalls, err = meter.Int64Counter("grpc.negotiate_calls",
-		metric.WithDescription("Number of negotiate calls"),
-		metric.WithUnit("{calls}"))
-	if err != nil {
-		panic(err)
-	}
-	getLocalActorIdsCalls, err = meter.Int64Counter("grpc.get_local_actor_ids_calls",
-		metric.WithDescription("Number of get local actor ids calls"),
-		metric.WithUnit("{calls}"))
-	if err != nil {
-		panic(err)
-	}
-	announceOwnershipCalls, err = meter.Int64Counter("grpc.announce_ownership_calls",
-		metric.WithDescription("Number of announce ownership calls"),
-		metric.WithUnit("{calls}"))
-	if err != nil {
-		panic(err)
-	}
-	announceExpiryCalls, err = meter.Int64Counter("grpc.announce_expiry_calls",
-		metric.WithDescription("Number of announce expiry calls"),
-		metric.WithUnit("{calls}"))
-	if err != nil {
-		panic(err)
-	}
-	closingCalls, err = meter.Int64Counter("grpc.closing_calls",
-		metric.WithDescription("Number of closing calls"),
-		metric.WithUnit("{calls}"))
-	if err != nil {
-		panic(err)
-	}
-}
-
 func (s *ControlServer[V]) AnnounceOwnership(ctx context.Context, req *messages.OwnershipAnnounce) (*messages.OwnerChangeAck, error) {
-	ctx, span := tracer.Start(ctx, "grpc_announce_ownership")
-	defer span.End()
-	span.SetAttributes(
-		attribute.String("component", "controlplane"),
-		attribute.String("host", req.Host),
-		attribute.Int("id_count", len(req.Ids)),
-	)
-	logger.InfoContext(ctx, "announce ownership", "host", req.Host, "id_count", len(req.Ids))
-	announceOwnershipCalls.Add(ctx, 1, metric.WithAttributes(attribute.String("host", req.Host)))
-
 	err := s.pool.HandleOwnershipChange(req.Host, req.Ids)
 	if err != nil {
-		span.RecordError(err)
 		return &messages.OwnerChangeAck{
 			Accepted: false,
 			Message:  "owner change failed",
@@ -105,20 +37,7 @@ func (s *ControlServer[V]) AnnounceOwnership(ctx context.Context, req *messages.
 }
 
 func (s *ControlServer[V]) AnnounceExpiry(ctx context.Context, req *messages.ExpiryAnnounce) (*messages.OwnerChangeAck, error) {
-	ctx, span := tracer.Start(ctx, "grpc_announce_expiry")
-	defer span.End()
-	span.SetAttributes(
-		attribute.String("component", "controlplane"),
-		attribute.String("host", req.Host),
-		attribute.Int("id_count", len(req.Ids)),
-	)
-	logger.InfoContext(ctx, "announce expiry", "host", req.Host, "id_count", len(req.Ids))
-	announceExpiryCalls.Add(ctx, 1, metric.WithAttributes(attribute.String("host", req.Host)))
-
 	err := s.pool.HandleRemoteExpiry(req.Host, req.Ids)
-	if err != nil {
-		span.RecordError(err)
-	}
 	return &messages.OwnerChangeAck{
 		Accepted: err == nil,
 		Message:  "expiry acknowledged",
@@ -127,28 +46,15 @@ func (s *ControlServer[V]) AnnounceExpiry(ctx context.Context, req *messages.Exp
 
 // ControlPlane: Ping
 func (s *ControlServer[V]) Ping(ctx context.Context, _ *messages.Empty) (*messages.PingReply, error) {
-
-	host := s.pool.Hostname()
-
-	pingCalls.Add(ctx, 1, metric.WithAttributes(attribute.String("host", host)))
-
 	// log.Printf("got ping")
 	return &messages.PingReply{
-		Host:     host,
+		Host:     s.pool.Hostname(),
 		UnixTime: time.Now().Unix(),
 	}, nil
 }
 
 // ControlPlane: Negotiate (merge host views)
 func (s *ControlServer[V]) Negotiate(ctx context.Context, req *messages.NegotiateRequest) (*messages.NegotiateReply, error) {
-	ctx, span := tracer.Start(ctx, "grpc_negotiate")
-	defer span.End()
-	span.SetAttributes(
-		attribute.String("component", "controlplane"),
-		attribute.Int("known_hosts_count", len(req.KnownHosts)),
-	)
-	logger.InfoContext(ctx, "negotiate", "known_hosts_count", len(req.KnownHosts))
-	negotiateCalls.Add(ctx, 1)
 
 	s.pool.Negotiate(req.KnownHosts)
 	return &messages.NegotiateReply{Hosts: req.GetKnownHosts()}, nil
@@ -156,33 +62,13 @@ func (s *ControlServer[V]) Negotiate(ctx context.Context, req *messages.Negotiat
 
 // ControlPlane: GetCartIds (locally owned carts only)
 func (s *ControlServer[V]) GetLocalActorIds(ctx context.Context, _ *messages.Empty) (*messages.ActorIdsReply, error) {
-	ctx, span := tracer.Start(ctx, "grpc_get_local_actor_ids")
-	defer span.End()
-	ids := s.pool.GetLocalIds()
-	span.SetAttributes(
-		attribute.String("component", "controlplane"),
-		attribute.Int("id_count", len(ids)),
-	)
-	logger.InfoContext(ctx, "get local actor ids", "id_count", len(ids))
-	getLocalActorIdsCalls.Add(ctx, 1)
-
-	return &messages.ActorIdsReply{Ids: ids}, nil
+	return &messages.ActorIdsReply{Ids: s.pool.GetLocalIds()}, nil
 }
 
 // ControlPlane: Closing (peer shutdown notification)
 func (s *ControlServer[V]) Closing(ctx context.Context, req *messages.ClosingNotice) (*messages.OwnerChangeAck, error) {
-	ctx, span := tracer.Start(ctx, "grpc_closing")
-	defer span.End()
-	host := req.GetHost()
-	span.SetAttributes(
-		attribute.String("component", "controlplane"),
-		attribute.String("host", host),
-	)
-	logger.InfoContext(ctx, "closing notice", "host", host)
-	closingCalls.Add(ctx, 1, metric.WithAttributes(attribute.String("host", host)))
-
-	if host != "" {
-		s.pool.RemoveHost(host)
+	if req.GetHost() != "" {
+		s.pool.RemoveHost(req.GetHost())
 	}
 	return &messages.OwnerChangeAck{
 		Accepted: true,

pkg/actor/log_listerner.go

@@ -1,47 +0,0 @@
-package actor
-
-import (
-	"log"
-
-	"github.com/matst80/slask-finder/pkg/messaging"
-	amqp "github.com/rabbitmq/amqp091-go"
-)
-
-type LogListener interface {
-	AppendMutations(id uint64, msg ...ApplyResult)
-}
-
-type AmqpListener struct {
-	conn        *amqp.Connection
-	transformer func(id uint64, msg []ApplyResult) (any, error)
-}
-
-func NewAmqpListener(conn *amqp.Connection, transformer func(id uint64, msg []ApplyResult) (any, error)) *AmqpListener {
-	return &AmqpListener{
-		conn:        conn,
-		transformer: transformer,
-	}
-}
-
-func (l *AmqpListener) DefineTopics() {
-	ch, err := l.conn.Channel()
-	if err != nil {
-		log.Fatalf("Failed to open a channel: %v", err)
-	}
-	defer ch.Close()
-	if err := messaging.DefineTopic(ch, "cart", "mutation"); err != nil {
-		log.Fatalf("Failed to declare topic mutation: %v", err)
-	}
-}
-
-func (l *AmqpListener) AppendMutations(id uint64, msg ...ApplyResult) {
-	data, err := l.transformer(id, msg)
-	if err != nil {
-		log.Printf("Failed to transform mutation event: %v", err)
-		return
-	}
-	err = messaging.SendChange(l.conn, "cart", "mutation", data)
-	if err != nil {
-		log.Printf("Failed to send mutation event: %v", err)
-	}
-}

pkg/actor/mutation_registry.go

@@ -1,14 +1,12 @@
 package actor
 
 import (
-	"context"
 	"fmt"
 	"log"
 	"reflect"
 	"sync"
 
 	"github.com/gogo/protobuf/proto"
-	"go.opentelemetry.io/otel/attribute"
 )
 
 type ApplyResult struct {
@@ -17,30 +15,11 @@ type ApplyResult struct {
 	Error    error         `json:"error,omitempty"`
 }
 
-type MutationProcessor interface {
-	Process(ctx context.Context, grain any) error
-}
-
-type BasicMutationProcessor[V any] struct {
-	processor func(ctx context.Context, grain V) error
-}
-
-func NewMutationProcessor[V any](process func(ctx context.Context, grain V) error) MutationProcessor {
-	return &BasicMutationProcessor[V]{
-		processor: process,
-	}
-}
-
-func (p *BasicMutationProcessor[V]) Process(ctx context.Context, grain any) error {
-	return p.processor(ctx, grain.(V))
-}
-
 type MutationRegistry interface {
-	Apply(ctx context.Context, grain any, msg ...proto.Message) ([]ApplyResult, error)
+	Apply(grain any, msg ...proto.Message) ([]ApplyResult, error)
 	RegisterMutations(handlers ...MutationHandler)
 	Create(typeName string) (proto.Message, bool)
 	GetTypeName(msg proto.Message) (string, bool)
-	RegisterProcessor(processor ...MutationProcessor)
 	//GetStorageEvent(msg proto.Message) StorageEvent
 	//FromStorageEvent(event StorageEvent) (proto.Message, error)
 }
@@ -48,7 +27,6 @@ type MutationRegistry interface {
 type ProtoMutationRegistry struct {
 	mutationRegistryMu sync.RWMutex
 	mutationRegistry   map[reflect.Type]MutationHandler
-	processors         []MutationProcessor
 }
 
 var (
@@ -136,14 +114,9 @@ func NewMutationRegistry() MutationRegistry {
 	return &ProtoMutationRegistry{
 		mutationRegistry:   make(map[reflect.Type]MutationHandler),
 		mutationRegistryMu: sync.RWMutex{},
-		processors:         make([]MutationProcessor, 0),
 	}
 }
 
-func (r *ProtoMutationRegistry) RegisterProcessor(processors ...MutationProcessor) {
-	r.processors = append(r.processors, processors...)
-}
-
 func (r *ProtoMutationRegistry) RegisterMutations(handlers ...MutationHandler) {
 	r.mutationRegistryMu.Lock()
 	defer r.mutationRegistryMu.Unlock()
@@ -192,65 +165,33 @@ func (r *ProtoMutationRegistry) Create(typeName string) (proto.Message, bool) {
 // Returns updated grain if successful.
 //
 // If the mutation is not registered, returns (nil, ErrMutationNotRegistered).
-func (r *ProtoMutationRegistry) Apply(ctx context.Context, grain any, msg ...proto.Message) ([]ApplyResult, error) {
-
-	parentCtx, span := tracer.Start(ctx, "apply mutations")
-	defer span.End()
-	span.SetAttributes(
-		attribute.String("component", "registry"),
-		attribute.Int("mutations", len(msg)),
-	)
-
+func (r *ProtoMutationRegistry) Apply(grain any, msg ...proto.Message) ([]ApplyResult, error) {
 	results := make([]ApplyResult, 0, len(msg))
 
 	if grain == nil {
 		return results, fmt.Errorf("nil grain")
 	}
-	// Nil slice of mutations still treated as an error (call contract violation).
 	if msg == nil {
 		return results, fmt.Errorf("nil mutation message")
 	}
 
 	for _, m := range msg {
-		// Ignore nil mutation elements (untyped or typed nil pointers) silently; they carry no data.
-		if m == nil {
-			continue
-		}
-		// Typed nil: interface holds concrete proto message type whose pointer value is nil.
-		rv := reflect.ValueOf(m)
-		if rv.Kind() == reflect.Ptr && rv.IsNil() {
-			continue
-		}
 		rt := indirectType(reflect.TypeOf(m))
-		_, msgSpan := tracer.Start(parentCtx, rt.Name())
-
 		r.mutationRegistryMu.RLock()
 		entry, ok := r.mutationRegistry[rt]
 		r.mutationRegistryMu.RUnlock()
 		if !ok {
 			results = append(results, ApplyResult{Error: ErrMutationNotRegistered, Type: rt.Name(), Mutation: m})
 			continue
-		} else {
-			err := entry.Handle(grain, m)
-			if err != nil {
-				msgSpan.RecordError(err)
-			}
-			results = append(results, ApplyResult{Error: err, Type: rt.Name(), Mutation: m})
 		}
-		msgSpan.End()
+		err := entry.Handle(grain, m)
+		results = append(results, ApplyResult{Error: err, Type: rt.Name(), Mutation: m})
 	}
 
-	if len(results) > 0 {
-		processCtx, processSpan := tracer.Start(ctx, "after mutation processors")
-		defer processSpan.End()
-		for _, processor := range r.processors {
+	// if entry.updateTotals {
+	// 	grain.UpdateTotals()
+	// }
 
-			err := processor.Process(processCtx, grain)
-			if err != nil {
-				return results, err
-			}
-		}
-	}
 	return results, nil
 }
 

pkg/actor/mutation_registry_test.go

@@ -1,7 +1,6 @@
 package actor
 
 import (
-	"context"
 	"errors"
 	"reflect"
 	"slices"
@@ -22,8 +21,8 @@ func TestRegisteredMutationBasics(t *testing.T) {
 		func(state *cartState, msg *messages.AddItem) error {
 			state.calls++
 			// copy to avoid external mutation side-effects (not strictly necessary for the test)
-			cp := msg
-			state.lastAdded = cp
+			cp := *msg
+			state.lastAdded = &cp
 			return nil
 		},
 		func() *messages.AddItem { return &messages.AddItem{} },
@@ -79,7 +78,7 @@ func TestRegisteredMutationBasics(t *testing.T) {
 	// Apply happy path
 	state := &cartState{}
 	add := &messages.AddItem{ItemId: 42, Quantity: 3, Sku: "ABC"}
-	if _, err := reg.Apply(context.Background(), state, add); err != nil {
+	if _, err := reg.Apply(state, add); err != nil {
 		t.Fatalf("Apply returned error: %v", err)
 	}
 	if state.calls != 1 {
@@ -95,12 +94,12 @@ func TestRegisteredMutationBasics(t *testing.T) {
 	}
 
 	// Apply nil message
-	if _, err := reg.Apply(context.Background(), state, nil); err == nil {
+	if _, err := reg.Apply(state, nil); err == nil {
 		t.Fatalf("expected error for nil mutation message")
 	}
 
 	// Apply unregistered message
-	if _, err := reg.Apply(context.Background(), state, &messages.Noop{}); !errors.Is(err, ErrMutationNotRegistered) {
+	if _, err := reg.Apply(state, &messages.Noop{}); !errors.Is(err, ErrMutationNotRegistered) {
 		t.Fatalf("expected ErrMutationNotRegistered, got %v", err)
 	}
 }

pkg/actor/pubsub.go

@@ -1,93 +0,0 @@
-package actor
-
-import (
-	"sync"
-)
-
-// Event represents an event to be published.
-type Event struct {
-	Topic   string
-	Payload interface{}
-}
-
-// NotifyFunc is a function to notify a grain of an event.
-type NotifyFunc func(grainID uint64, event Event)
-
-// Subscribable is an interface for grains that can receive notifications.
-type Subscribable interface {
-	Notify(event Event)
-	UpdateSubscriptions(pubsub *PubSub)
-}
-
-// PubSub manages subscriptions for grains to topics.
-// Topics are strings, e.g., "sku:12345"
-// Subscribers are grain IDs (uint64)
-type PubSub struct {
-	subscribers map[string][]uint64
-	mu          sync.RWMutex
-	notify      NotifyFunc
-}
-
-// NewPubSub creates a new PubSub instance.
-func NewPubSub(notify NotifyFunc) *PubSub {
-	return &PubSub{
-		subscribers: make(map[string][]uint64),
-		notify:      notify,
-	}
-}
-
-// Subscribe adds a grain ID to the subscribers of a topic.
-func (p *PubSub) Subscribe(topic string, grainID uint64) {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-	p.subscribers[topic] = append(p.subscribers[topic], grainID)
-}
-
-// Unsubscribe removes a grain ID from the subscribers of a topic.
-func (p *PubSub) Unsubscribe(topic string, grainID uint64) {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-	list := p.subscribers[topic]
-	for i, id := range list {
-		if id == grainID {
-			p.subscribers[topic] = append(list[:i], list[i+1:]...)
-			break
-		}
-	}
-	// If list is empty, could delete, but not necessary
-}
-
-// UnsubscribeAll removes the grain ID from all topics.
-func (p *PubSub) UnsubscribeAll(grainID uint64) {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-	for topic, list := range p.subscribers {
-		newList := make([]uint64, 0, len(list))
-		for _, id := range list {
-			if id != grainID {
-				newList = append(newList, id)
-			}
-		}
-		if len(newList) == 0 {
-			delete(p.subscribers, topic)
-		} else {
-			p.subscribers[topic] = newList
-		}
-	}
-}
-
-// GetSubscribers returns a copy of the subscriber IDs for a topic.
-func (p *PubSub) GetSubscribers(topic string) []uint64 {
-	p.mu.RLock()
-	defer p.mu.RUnlock()
-	list := p.subscribers[topic]
-	return append([]uint64(nil), list...)
-}
-
-// Publish sends an event to all subscribers of the topic.
-func (p *PubSub) Publish(event Event) {
-	subs := p.GetSubscribers(event.Topic)
-	for _, id := range subs {
-		p.notify(id, event)
-	}
-}

pkg/actor/simple_grain_pool.go

@@ -1,7 +1,6 @@
 package actor
 
 import (
-	"context"
 	"fmt"
 	"log"
 	"maps"
@@ -16,13 +15,11 @@ type SimpleGrainPool[V any] struct {
 	localMu          sync.RWMutex
 	grains           map[uint64]Grain[V]
 	mutationRegistry MutationRegistry
-	spawn            func(ctx context.Context, id uint64) (Grain[V], error)
+	spawn            func(id uint64) (Grain[V], error)
 	spawnHost        func(host string) (Host, error)
-	listeners        []LogListener
 	storage          LogStorage[V]
 	ttl              time.Duration
 	poolSize         int
-	pubsub           *PubSub
 
 	// Cluster coordination --------------------------------------------------
 	hostname     string
@@ -37,7 +34,7 @@ type SimpleGrainPool[V any] struct {
 
 type GrainPoolConfig[V any] struct {
 	Hostname         string
-	Spawn            func(ctx context.Context, id uint64) (Grain[V], error)
+	Spawn            func(id uint64) (Grain[V], error)
 	SpawnHost        func(host string) (Host, error)
 	TTL              time.Duration
 	PoolSize         int
@@ -69,19 +66,6 @@ func NewSimpleGrainPool[V any](config GrainPoolConfig[V]) (*SimpleGrainPool[V],
 	return p, nil
 }
 
-func (p *SimpleGrainPool[V]) AddListener(listener LogListener) {
-	p.listeners = append(p.listeners, listener)
-}
-
-func (p *SimpleGrainPool[V]) RemoveListener(listener LogListener) {
-	for i, l := range p.listeners {
-		if l == listener {
-			p.listeners = append(p.listeners[:i], p.listeners[i+1:]...)
-			break
-		}
-	}
-}
-
 func (p *SimpleGrainPool[V]) purge() {
 	purgeLimit := time.Now().Add(-p.ttl)
 	purgedIds := make([]uint64, 0, len(p.grains))
@@ -89,9 +73,7 @@ func (p *SimpleGrainPool[V]) purge() {
 	for id, grain := range p.grains {
 		if grain.GetLastAccess().Before(purgeLimit) {
 			purgedIds = append(purgedIds, id)
-			if p.pubsub != nil {
-				p.pubsub.UnsubscribeAll(id)
-			}
+
 			delete(p.grains, id)
 		}
 	}
@@ -161,10 +143,6 @@ func (p *SimpleGrainPool[V]) TakeOwnership(id uint64) {
 	p.broadcastOwnership([]uint64{id})
 }
 
-func (p *SimpleGrainPool[V]) AddRemoteHost(host string) {
-	p.AddRemote(host)
-}
-
 func (p *SimpleGrainPool[V]) AddRemote(host string) (Host, error) {
 	if host == "" {
 		return nil, fmt.Errorf("host is empty")
@@ -370,7 +348,7 @@ func (p *SimpleGrainPool[V]) broadcastOwnership(ids []uint64) {
 	// go p.statsUpdate()
 }
 
-func (p *SimpleGrainPool[V]) getOrClaimGrain(ctx context.Context, id uint64) (Grain[V], error) {
+func (p *SimpleGrainPool[V]) getOrClaimGrain(id uint64) (Grain[V], error) {
 	p.localMu.RLock()
 	grain, exists := p.grains[id]
 	p.localMu.RUnlock()
@@ -378,7 +356,7 @@ func (p *SimpleGrainPool[V]) getOrClaimGrain(ctx context.Context, id uint64) (Gr
 		return grain, nil
 	}
 
-	grain, err := p.spawn(ctx, id)
+	grain, err := p.spawn(id)
 	if err != nil {
 		return nil, err
 	}
@@ -393,35 +371,27 @@ func (p *SimpleGrainPool[V]) getOrClaimGrain(ctx context.Context, id uint64) (Gr
 // var ErrNotOwner = fmt.Errorf("not owner")
 
 // Apply applies a mutation to a grain.
-func (p *SimpleGrainPool[V]) Apply(ctx context.Context, id uint64, mutation ...proto.Message) (*MutationResult[*V], error) {
-	grain, err := p.getOrClaimGrain(ctx, id)
+func (p *SimpleGrainPool[V]) Apply(id uint64, mutation ...proto.Message) (*MutationResult[*V], error) {
+	grain, err := p.getOrClaimGrain(id)
 	if err != nil {
 		return nil, err
 	}
 
-	mutations, err := p.mutationRegistry.Apply(ctx, grain, mutation...)
+	mutations, err := p.mutationRegistry.Apply(grain, mutation...)
 	if err != nil {
 		return nil, err
 	}
 	if p.storage != nil {
 		go func() {
-			if err := p.storage.AppendMutations(id, mutation...); err != nil {
+			if err := p.storage.AppendEvent(id, mutation...); err != nil {
 				log.Printf("failed to store mutation for grain %d: %v", id, err)
 			}
 		}()
 	}
-	for _, listener := range p.listeners {
-		go listener.AppendMutations(id, mutations...)
-	}
 	result, err := grain.GetCurrentState()
 	if err != nil {
 		return nil, err
 	}
-	if p.pubsub != nil {
-		if sub, ok := any(grain).(Subscribable); ok {
-			sub.UpdateSubscriptions(p.pubsub)
-		}
-	}
 	return &MutationResult[*V]{
 		Result:    result,
 		Mutations: mutations,
@@ -429,8 +399,8 @@ func (p *SimpleGrainPool[V]) Apply(ctx context.Context, id uint64, mutation ...p
 }
 
 // Get returns the current state of a grain.
-func (p *SimpleGrainPool[V]) Get(ctx context.Context, id uint64) (*V, error) {
-	grain, err := p.getOrClaimGrain(ctx, id)
+func (p *SimpleGrainPool[V]) Get(id uint64) (*V, error) {
+	grain, err := p.getOrClaimGrain(id)
 	if err != nil {
 		return nil, err
 	}
@@ -450,21 +420,6 @@ func (p *SimpleGrainPool[V]) Hostname() string {
 	return p.hostname
 }
 
-// GetPubSub returns the pubsub instance.
-func (p *SimpleGrainPool[V]) GetPubSub() *PubSub {
-	return p.pubsub
-}
-
-func (p *SimpleGrainPool[V]) SetPubSub(pubsub *PubSub) {
-	p.pubsub = pubsub
-}
-
-func (p *SimpleGrainPool[V]) Publish(event Event) {
-	if p.pubsub != nil {
-		p.pubsub.Publish(event)
-	}
-}
-
 // Close notifies remotes that this host is shutting down.
 func (p *SimpleGrainPool[V]) Close() {
 

pkg/actor/state.go

@@ -34,14 +34,14 @@ func NewState(registry MutationRegistry) *StateStorage {
 
 var ErrUnknownType = errors.New("unknown type")
 
-func (s *StateStorage) Load(r io.Reader, onMessage func(msg proto.Message, timeStamp time.Time)) error {
+func (s *StateStorage) Load(r io.Reader, onMessage func(msg proto.Message)) error {
 	var err error
 	var evt *StorageEvent
 	scanner := bufio.NewScanner(r)
 	for err == nil {
 		evt, err = s.Read(scanner)
 		if err == nil {
-			onMessage(evt.Mutation, evt.TimeStamp)
+			onMessage(evt.Mutation)
 		}
 	}
 	if err == io.EOF {

pkg/cart/cart-grain.go

@@ -1,343 +0,0 @@
-package cart
-
-import (
-	"encoding/json"
-	"slices"
-	"strings"
-	"sync"
-	"time"
-
-	"git.tornberg.me/go-cart-actor/pkg/actor"
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-	"git.tornberg.me/go-cart-actor/pkg/voucher"
-)
-
-// Legacy padded [16]byte CartId and its helper methods removed.
-// Unified CartId (uint64 with base62 string form) now defined in cart_id.go.
-
-type StockStatus int
-
-type ItemMeta struct {
-	Name       string  `json:"name"`
-	Brand      string  `json:"brand,omitempty"`
-	Category   string  `json:"category,omitempty"`
-	Category2  string  `json:"category2,omitempty"`
-	Category3  string  `json:"category3,omitempty"`
-	Category4  string  `json:"category4,omitempty"`
-	Category5  string  `json:"category5,omitempty"`
-	SellerId   string  `json:"sellerId,omitempty"`
-	SellerName string  `json:"sellerName,omitempty"`
-	Image      string  `json:"image,omitempty"`
-	Outlet     *string `json:"outlet,omitempty"`
-	Cgm        string  `json:"cgm,omitempty"` // Customer Group Membership
-}
-
-type CartItem struct {
-	Id                    uint32  `json:"id"`
-	ItemId                uint32  `json:"itemId,omitempty"`
-	ParentId              *uint32 `json:"parentId,omitempty"`
-	Sku                   string  `json:"sku"`
-	Price                 Price   `json:"price"`
-	TotalPrice            Price   `json:"totalPrice"`
-	OrgPrice              *Price  `json:"orgPrice,omitempty"`
-	Tax                   int
-	Stock                 StockStatus `json:"stock"`
-	Quantity              int         `json:"qty"`
-	Discount              *Price      `json:"discount,omitempty"`
-	Disclaimer            string      `json:"disclaimer,omitempty"`
-	ArticleType           string      `json:"type,omitempty"`
-	StoreId               *string     `json:"storeId,omitempty"`
-	Meta                  *ItemMeta   `json:"meta,omitempty"`
-	SaleStatus            string      `json:"saleStatus"`
-	Marking               *Marking    `json:"marking,omitempty"`
-	SubscriptionDetailsId string      `json:"subscriptionDetailsId,omitempty"`
-	OrderReference        string      `json:"orderReference,omitempty"`
-	IsSubscribed          bool        `json:"isSubscribed,omitempty"`
-}
-
-type CartDelivery struct {
-	Id          uint32                `json:"id"`
-	Provider    string                `json:"provider"`
-	Price       Price                 `json:"price"`
-	Items       []uint32              `json:"items"`
-	PickupPoint *messages.PickupPoint `json:"pickupPoint,omitempty"`
-}
-
-type CartNotification struct {
-	LinkedId int    `json:"id"`
-	Provider string `json:"provider"`
-	Title    string `json:"title"`
-	Content  string `json:"content"`
-}
-
-type SubscriptionDetails struct {
-	Id           string          `json:"id,omitempty"`
-	Version      uint16          `json:"version"`
-	OfferingCode string          `json:"offeringCode,omitempty"`
-	SigningType  string          `json:"signingType,omitempty"`
-	Meta         json.RawMessage `json:"data,omitempty"`
-}
-
-type Marking struct {
-	Type uint32 `json:"type"`
-	Text string `json:"text"`
-}
-
-type CartGrain struct {
-	mu                       sync.RWMutex
-	lastItemId               uint32
-	lastDeliveryId           uint32
-	lastVoucherId            uint32
-	lastAccess               time.Time
-	lastChange               time.Time // unix seconds of last successful mutation (replay sets from event ts)
-	userId                   string
-	InventoryReserved        bool                            `json:"inventoryReserved"`
-	Id                       CartId                          `json:"id"`
-	Items                    []*CartItem                     `json:"items"`
-	TotalPrice               *Price                          `json:"totalPrice"`
-	TotalDiscount            *Price                          `json:"totalDiscount"`
-	Deliveries               []*CartDelivery                 `json:"deliveries,omitempty"`
-	Processing               bool                            `json:"processing"`
-	PaymentInProgress        bool                            `json:"paymentInProgress"`
-	OrderReference           string                          `json:"orderReference,omitempty"`
-	PaymentStatus            string                          `json:"paymentStatus,omitempty"`
-	Vouchers                 []*Voucher                      `json:"vouchers,omitempty"`
-	Notifications            []CartNotification              `json:"cartNotification,omitempty"`
-	SubscriptionDetails      map[string]*SubscriptionDetails `json:"subscriptionDetails,omitempty"`
-	PaymentDeclinedAt        time.Time                       `json:"paymentDeclinedAt,omitempty"`
-	ConfirmationViewCount    int                             `json:"confirmationViewCount,omitempty"`
-	ConfirmationLastViewedAt time.Time                       `json:"confirmationLastViewedAt,omitempty"`
-	CheckoutOrderId          string                          `json:"checkoutOrderId,omitempty"`
-	CheckoutStatus           string                          `json:"checkoutStatus,omitempty"`
-	CheckoutCountry          string                          `json:"checkoutCountry,omitempty"`
-}
-
-type Voucher struct {
-	Code        string   `json:"code"`
-	Applied     bool     `json:"applied"`
-	Rules       []string `json:"rules"`
-	Description string   `json:"description,omitempty"`
-	Id          uint32   `json:"id"`
-	Value       int64    `json:"value"`
-}
-
-func (v *Voucher) AppliesTo(cart *CartGrain) ([]*CartItem, bool) {
-	// No rules -> applies to entire cart
-	if len(v.Rules) == 0 {
-		return cart.Items, true
-	}
-
-	// Build evaluation context once
-	ctx := voucher.EvalContext{
-		Items:        make([]voucher.Item, 0, len(cart.Items)),
-		CartTotalInc: 0,
-	}
-
-	if cart.TotalPrice != nil {
-		ctx.CartTotalInc = cart.TotalPrice.IncVat
-	}
-
-	for _, it := range cart.Items {
-		category := ""
-		if it.Meta != nil {
-			category = it.Meta.Category
-		}
-		ctx.Items = append(ctx.Items, voucher.Item{
-			Sku:       it.Sku,
-			Category:  category,
-			UnitPrice: it.Price.IncVat,
-		})
-	}
-
-	// All voucher rules must pass (logical AND)
-	for _, expr := range v.Rules {
-
-		if expr == "" {
-			// Empty condition treated as pass (acts like a comment / placeholder)
-			continue
-		}
-		rs, err := voucher.ParseRules(expr)
-		if err != nil {
-			// Fail closed on parse error
-			return nil, false
-		}
-		if !rs.Applies(ctx) {
-			return nil, false
-		}
-	}
-
-	return cart.Items, true
-}
-
-func NewCartGrain(id uint64, ts time.Time) *CartGrain {
-	return &CartGrain{
-		lastItemId:          0,
-		lastDeliveryId:      0,
-		lastVoucherId:       0,
-		lastAccess:          ts,
-		lastChange:          ts,
-		TotalDiscount:       NewPrice(),
-		Vouchers:            []*Voucher{},
-		Deliveries:          []*CartDelivery{},
-		Id:                  CartId(id),
-		Items:               []*CartItem{},
-		TotalPrice:          NewPrice(),
-		SubscriptionDetails: make(map[string]*SubscriptionDetails),
-	}
-}
-
-func (c *CartGrain) GetId() uint64 {
-	return uint64(c.Id)
-}
-
-func (c *CartGrain) GetLastChange() time.Time {
-	return c.lastChange
-}
-
-func (c *CartGrain) GetLastAccess() time.Time {
-	return c.lastAccess
-}
-
-func (c *CartGrain) GetCurrentState() (*CartGrain, error) {
-	c.lastAccess = time.Now()
-	return c, nil
-}
-
-// Notify handles incoming events, e.g., inventory changes.
-func (c *CartGrain) Notify(event actor.Event) {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	// Example: if event is inventory change for a SKU in the cart
-	if strings.HasPrefix(event.Topic, "inventory:") {
-		sku := strings.TrimPrefix(event.Topic, "inventory:")
-		for _, item := range c.Items {
-			if item.Sku == sku {
-				// Update stock status based on payload, e.g., if payload is bool available
-				if available, ok := event.Payload.(bool); ok {
-					if available {
-						item.Stock = StockStatus(1) // assuming 1 is in stock
-					} else {
-						item.Stock = StockStatus(0) // out of stock
-					}
-				}
-				break
-			}
-		}
-	}
-}
-
-func (c *CartGrain) UpdateSubscriptions(pubsub *actor.PubSub) {
-	pubsub.UnsubscribeAll(c.GetId())
-	skuSet := make(map[string]bool)
-	for _, item := range c.Items {
-		skuSet[item.Sku] = true
-	}
-	for sku := range skuSet {
-		pubsub.Subscribe("inventory:"+sku, c.GetId())
-	}
-}
-
-func (c *CartGrain) GetState() ([]byte, error) {
-	return json.Marshal(c)
-}
-
-func (c *CartGrain) ItemsWithDelivery() []uint32 {
-	ret := make([]uint32, 0, len(c.Items))
-	for _, item := range c.Items {
-		for _, delivery := range c.Deliveries {
-			for _, id := range delivery.Items {
-				if item.Id == id {
-					ret = append(ret, id)
-				}
-			}
-		}
-	}
-	return ret
-}
-
-func (c *CartGrain) ItemsWithoutDelivery() []uint32 {
-	ret := make([]uint32, 0, len(c.Items))
-	hasDelivery := c.ItemsWithDelivery()
-	for _, item := range c.Items {
-		found := slices.Contains(hasDelivery, item.Id)
-
-		if !found {
-			ret = append(ret, item.Id)
-		}
-	}
-	return ret
-}
-
-func (c *CartGrain) FindItemWithSku(sku string) (*CartItem, bool) {
-	c.mu.RLock()
-	defer c.mu.RUnlock()
-	for _, item := range c.Items {
-		if item.Sku == sku {
-			return item, true
-		}
-	}
-	return nil, false
-}
-
-// func (c *CartGrain) Apply(content proto.Message, isReplay bool) (*CartGrain, error) {
-
-// 	updated, err := ApplyRegistered(c, content)
-// 	if err != nil {
-// 		if err == ErrMutationNotRegistered {
-// 			return nil, fmt.Errorf("unsupported mutation type %T (not registered)", content)
-// 		}
-// 		return nil, err
-// 	}
-
-// 	// Sliding TTL: update lastChange only for non-replay successful mutations.
-// 	if updated != nil && !isReplay {
-// 		c.lastChange = time.Now()
-// 		c.lastAccess = time.Now()
-// 		go AppendCartEvent(c.Id, content)
-// 	}
-
-// 	return updated, nil
-// }
-
-func (c *CartGrain) UpdateTotals() {
-	c.TotalPrice = NewPrice()
-	c.TotalDiscount = NewPrice()
-
-	for _, item := range c.Items {
-		rowTotal := MultiplyPrice(item.Price, int64(item.Quantity))
-
-		if item.OrgPrice != nil {
-			diff := NewPrice()
-			diff.Add(*item.OrgPrice)
-			diff.Subtract(item.Price)
-			diff.Multiply(int64(item.Quantity))
-			//rowTotal.Subtract(*diff)
-			item.Discount = diff
-			if diff.IncVat > 0 {
-				c.TotalDiscount.Add(*diff)
-			}
-		}
-
-		item.TotalPrice = *rowTotal
-
-		c.TotalPrice.Add(*rowTotal)
-
-	}
-	for _, delivery := range c.Deliveries {
-		c.TotalPrice.Add(delivery.Price)
-	}
-	for _, voucher := range c.Vouchers {
-		_, ok := voucher.AppliesTo(c)
-		voucher.Applied = false
-		if ok {
-			value := NewPriceFromIncVat(voucher.Value, 25)
-			if c.TotalPrice.IncVat <= value.IncVat {
-				// don't apply discounts to more than the total price
-				continue
-			}
-			voucher.Applied = true
-			c.TotalDiscount.Add(*value)
-			c.TotalPrice.Subtract(*value)
-		}
-	}
-}

pkg/cart/cart-mutation-helper.go

@@ -1,78 +0,0 @@
-package cart
-
-import (
-	"git.tornberg.me/go-cart-actor/pkg/actor"
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func NewCartMultationRegistry() actor.MutationRegistry {
-
-	reg := actor.NewMutationRegistry()
-	reg.RegisterMutations(
-		actor.NewMutation(AddItem, func() *messages.AddItem {
-			return &messages.AddItem{}
-		}),
-		actor.NewMutation(ChangeQuantity, func() *messages.ChangeQuantity {
-			return &messages.ChangeQuantity{}
-		}),
-		actor.NewMutation(RemoveItem, func() *messages.RemoveItem {
-			return &messages.RemoveItem{}
-		}),
-		actor.NewMutation(InitializeCheckout, func() *messages.InitializeCheckout {
-			return &messages.InitializeCheckout{}
-		}),
-		actor.NewMutation(OrderCreated, func() *messages.OrderCreated {
-			return &messages.OrderCreated{}
-		}),
-		actor.NewMutation(RemoveDelivery, func() *messages.RemoveDelivery {
-			return &messages.RemoveDelivery{}
-		}),
-		actor.NewMutation(SetDelivery, func() *messages.SetDelivery {
-			return &messages.SetDelivery{}
-		}),
-		actor.NewMutation(SetPickupPoint, func() *messages.SetPickupPoint {
-			return &messages.SetPickupPoint{}
-		}),
-		actor.NewMutation(ClearCart, func() *messages.ClearCartRequest {
-			return &messages.ClearCartRequest{}
-		}),
-		actor.NewMutation(AddVoucher, func() *messages.AddVoucher {
-			return &messages.AddVoucher{}
-		}),
-		actor.NewMutation(RemoveVoucher, func() *messages.RemoveVoucher {
-			return &messages.RemoveVoucher{}
-		}),
-		actor.NewMutation(UpsertSubscriptionDetails, func() *messages.UpsertSubscriptionDetails {
-			return &messages.UpsertSubscriptionDetails{}
-		}),
-		actor.NewMutation(InventoryReserved, func() *messages.InventoryReserved {
-			return &messages.InventoryReserved{}
-		}),
-		actor.NewMutation(PreConditionFailed, func() *messages.PreConditionFailed {
-			return &messages.PreConditionFailed{}
-		}),
-		actor.NewMutation(SetUserId, func() *messages.SetUserId {
-			return &messages.SetUserId{}
-		}),
-		actor.NewMutation(LineItemMarking, func() *messages.LineItemMarking {
-			return &messages.LineItemMarking{}
-		}),
-		actor.NewMutation(RemoveLineItemMarking, func() *messages.RemoveLineItemMarking {
-			return &messages.RemoveLineItemMarking{}
-		}),
-		actor.NewMutation(SubscriptionAdded, func() *messages.SubscriptionAdded {
-			return &messages.SubscriptionAdded{}
-		}),
-		actor.NewMutation(PaymentDeclined, func() *messages.PaymentDeclined {
-			return &messages.PaymentDeclined{}
-		}),
-		actor.NewMutation(ConfirmationViewed, func() *messages.ConfirmationViewed {
-			return &messages.ConfirmationViewed{}
-		}),
-		actor.NewMutation(CreateCheckoutOrder, func() *messages.CreateCheckoutOrder {
-			return &messages.CreateCheckoutOrder{}
-		}),
-	)
-	return reg
-
-}

pkg/cart/mutation_confirmation_viewed.go

@@ -1,13 +0,0 @@
-package cart
-
-import (
-	"time"
-
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func ConfirmationViewed(grain *CartGrain, req *messages.ConfirmationViewed) error {
-	grain.ConfirmationViewCount++
-	grain.ConfirmationLastViewedAt = time.Now()
-	return nil
-}

pkg/cart/mutation_create_checkout_order.go

@@ -1,21 +0,0 @@
-package cart
-
-import (
-	"errors"
-	"github.com/google/uuid"
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func CreateCheckoutOrder(grain *CartGrain, req *messages.CreateCheckoutOrder) error {
-	if len(grain.Items) == 0 {
-		return errors.New("cannot checkout empty cart")
-	}
-	if req.Terms != "accepted" {
-		return errors.New("terms must be accepted")
-	}
-	// Validate other fields as needed
-	grain.CheckoutOrderId = uuid.New().String()
-	grain.CheckoutStatus = "pending"
-	grain.CheckoutCountry = req.Country
-	return nil
-}

pkg/cart/mutation_inventory_reserved.go

@@ -1,8 +0,0 @@
-package cart
-
-import "git.tornberg.me/go-cart-actor/pkg/messages"
-
-func InventoryReserved(g *CartGrain, m *messages.InventoryReserved) error {
-	g.InventoryReserved = true
-	return nil
-}

pkg/cart/mutation_line_item_marking.go

@@ -1,20 +0,0 @@
-package cart
-
-import (
-	"fmt"
-
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func LineItemMarking(grain *CartGrain, req *messages.LineItemMarking) error {
-	for i, item := range grain.Items {
-		if item.Id == req.Id {
-			grain.Items[i].Marking = &Marking{
-				Type: req.Type,
-				Text: req.Marking,
-			}
-			return nil
-		}
-	}
-	return fmt.Errorf("item with ID %d not found", req.Id)
-}

pkg/cart/mutation_payment_declined.go

@@ -1,16 +0,0 @@
-package cart
-
-import (
-	"time"
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func PaymentDeclined(grain *CartGrain, req *messages.PaymentDeclined) error {
-	grain.PaymentStatus = "declined"
-	grain.PaymentDeclinedAt = time.Now()
-	// Optionally clear checkout order if in progress
-	if grain.CheckoutOrderId != "" {
-		grain.CheckoutOrderId = ""
-	}
-	return nil
-}

pkg/cart/mutation_precondition.go

@@ -1,7 +0,0 @@
-package cart
-
-import messages "git.tornberg.me/go-cart-actor/pkg/messages"
-
-func PreConditionFailed(g *CartGrain, m *messages.PreConditionFailed) error {
-	return nil
-}

pkg/cart/mutation_remove_line_item_marking.go

@@ -1,16 +0,0 @@
-package cart
-
-import (
-	"fmt"
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func RemoveLineItemMarking(grain *CartGrain, req *messages.RemoveLineItemMarking) error {
-	for i, item := range grain.Items {
-		if item.Id == req.Id {
-			grain.Items[i].Marking = nil
-			return nil
-		}
-	}
-	return fmt.Errorf("item with ID %d not found", req.Id)
-}

pkg/cart/mutation_set_user_id.go

@@ -1,14 +0,0 @@
-package cart
-
-import (
-	"errors"
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func SetUserId(grain *CartGrain, req *messages.SetUserId) error {
-	if req.UserId == "" {
-		return errors.New("user ID cannot be empty")
-	}
-	grain.userId = req.UserId
-	return nil
-}

pkg/cart/mutation_subscription_added.go

@@ -1,18 +0,0 @@
-package cart
-
-import (
-	"fmt"
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func SubscriptionAdded(grain *CartGrain, req *messages.SubscriptionAdded) error {
-	for i, item := range grain.Items {
-		if item.Id == req.ItemId {
-			grain.Items[i].SubscriptionDetailsId = req.DetailsId
-			grain.Items[i].OrderReference = req.OrderReference
-			grain.Items[i].IsSubscribed = true
-			return nil
-		}
-	}
-	return fmt.Errorf("item with ID %d not found", req.ItemId)
-}

pkg/cart/mutation_test.go

@@ -1,712 +0,0 @@
-package cart
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"reflect"
-	"slices"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/gogo/protobuf/proto"
-	"google.golang.org/protobuf/types/known/anypb"
-
-	"git.tornberg.me/go-cart-actor/pkg/actor"
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-// ----------------------
-// Helper constructors
-// ----------------------
-
-func newTestGrain() *CartGrain {
-	return NewCartGrain(123, time.Now())
-}
-
-func newRegistry() actor.MutationRegistry {
-	return NewCartMultationRegistry()
-}
-
-func msgAddItem(sku string, price int64, qty int32, storePtr *string) *messages.AddItem {
-	return &messages.AddItem{
-		Sku:      sku,
-		Price:    price,
-		Quantity: qty,
-		// Tax left 0 -> handler uses default 25%
-		StoreId: storePtr,
-	}
-}
-
-func msgChangeQty(id uint32, qty int32) *messages.ChangeQuantity {
-	return &messages.ChangeQuantity{Id: id, Quantity: qty}
-}
-
-func msgRemoveItem(id uint32) *messages.RemoveItem {
-	return &messages.RemoveItem{Id: id}
-}
-
-func msgSetDelivery(provider string, items ...uint32) *messages.SetDelivery {
-	uitems := make([]uint32, len(items))
-	copy(uitems, items)
-	return &messages.SetDelivery{Provider: provider, Items: uitems}
-}
-
-func msgSetPickupPoint(deliveryId uint32, id string) *messages.SetPickupPoint {
-	return &messages.SetPickupPoint{
-		DeliveryId: deliveryId,
-		Id:         id,
-		Name:       ptr("Pickup"),
-		Address:    ptr("Street 1"),
-		City:       ptr("Town"),
-		Zip:        ptr("12345"),
-		Country:    ptr("SE"),
-	}
-}
-
-func msgClearCart() *messages.ClearCartRequest {
-	return &messages.ClearCartRequest{}
-}
-
-func msgAddVoucher(code string, value int64, rules ...string) *messages.AddVoucher {
-	return &messages.AddVoucher{Code: code, Value: value, VoucherRules: rules}
-}
-
-func msgRemoveVoucher(id uint32) *messages.RemoveVoucher {
-	return &messages.RemoveVoucher{Id: id}
-}
-
-func msgInitializeCheckout(orderId, status string, inProgress bool) *messages.InitializeCheckout {
-	return &messages.InitializeCheckout{OrderId: orderId, Status: status, PaymentInProgress: inProgress}
-}
-
-func msgOrderCreated(orderId, status string) *messages.OrderCreated {
-	return &messages.OrderCreated{OrderId: orderId, Status: status}
-}
-
-func msgSetUserId(userId string) *messages.SetUserId {
-	return &messages.SetUserId{UserId: userId}
-}
-
-func msgLineItemMarking(id uint32, typ uint32, marking string) *messages.LineItemMarking {
-	return &messages.LineItemMarking{Id: id, Type: typ, Marking: marking}
-}
-
-func msgRemoveLineItemMarking(id uint32) *messages.RemoveLineItemMarking {
-	return &messages.RemoveLineItemMarking{Id: id}
-}
-
-func msgSubscriptionAdded(itemId uint32, detailsId, orderRef string) *messages.SubscriptionAdded {
-	return &messages.SubscriptionAdded{ItemId: itemId, DetailsId: detailsId, OrderReference: orderRef}
-}
-
-func msgPaymentDeclined() *messages.PaymentDeclined {
-	return &messages.PaymentDeclined{}
-}
-
-func msgConfirmationViewed() *messages.ConfirmationViewed {
-	return &messages.ConfirmationViewed{}
-}
-
-func msgCreateCheckoutOrder(terms, country string) *messages.CreateCheckoutOrder {
-	return &messages.CreateCheckoutOrder{Terms: terms, Country: country}
-}
-
-func ptr[T any](v T) *T { return &v }
-
-// ----------------------
-// Apply helpers
-// ----------------------
-
-func applyOne(t *testing.T, reg actor.MutationRegistry, g *CartGrain, msg proto.Message) actor.ApplyResult {
-	t.Helper()
-	results, err := reg.Apply(context.Background(), g, msg)
-	if err != nil {
-		t.Fatalf("unexpected registry-level error applying %T: %v", msg, err)
-	}
-	if len(results) != 1 {
-		t.Fatalf("expected exactly one ApplyResult, got %d", len(results))
-	}
-	return results[0]
-}
-
-// Expect success (nil error inside ApplyResult).
-func applyOK(t *testing.T, reg actor.MutationRegistry, g *CartGrain, msg proto.Message) {
-	t.Helper()
-	res := applyOne(t, reg, g, msg)
-	if res.Error != nil {
-		t.Fatalf("expected mutation %s (%T) to succeed, got error: %v", res.Type, msg, res.Error)
-	}
-}
-
-// Expect an error matching substring.
-func applyErrorContains(t *testing.T, reg actor.MutationRegistry, g *CartGrain, msg proto.Message, substr string) {
-	t.Helper()
-	res := applyOne(t, reg, g, msg)
-	if res.Error == nil {
-		t.Fatalf("expected error applying %T, got nil", msg)
-	}
-	if substr != "" && !strings.Contains(res.Error.Error(), substr) {
-		t.Fatalf("error mismatch, want substring %q got %q", substr, res.Error.Error())
-	}
-}
-
-// ----------------------
-// Tests
-// ----------------------
-
-func TestMutationRegistryCoverage(t *testing.T) {
-	reg := newRegistry()
-
-	expected := []string{
-		"AddItem",
-		"ChangeQuantity",
-		"RemoveItem",
-		"InitializeCheckout",
-		"OrderCreated",
-		"RemoveDelivery",
-		"SetDelivery",
-		"SetPickupPoint",
-		"ClearCartRequest",
-		"AddVoucher",
-		"RemoveVoucher",
-		"UpsertSubscriptionDetails",
-		"InventoryReserved",
-		"PreConditionFailed",
-		"SetUserId",
-		"LineItemMarking",
-		"RemoveLineItemMarking",
-		"SubscriptionAdded",
-		"PaymentDeclined",
-		"ConfirmationViewed",
-		"CreateCheckoutOrder",
-	}
-
-	names := reg.(*actor.ProtoMutationRegistry).RegisteredMutations()
-	for _, want := range expected {
-		if !slices.Contains(names, want) {
-			t.Fatalf("registry missing mutation %s; got %v", want, names)
-		}
-	}
-
-	// Create() by name returns correct concrete type.
-	for _, name := range expected {
-		msg, ok := reg.Create(name)
-		if !ok {
-			t.Fatalf("Create failed for %s", name)
-		}
-		rt := reflect.TypeOf(msg)
-		if rt.Kind() == reflect.Ptr {
-			rt = rt.Elem()
-		}
-		if rt.Name() != name {
-			t.Fatalf("Create(%s) returned wrong type %s", name, rt.Name())
-		}
-	}
-
-	// Unregistered create
-	if m, ok := reg.Create("DoesNotExist"); ok || m != nil {
-		t.Fatalf("Create should fail for unknown; got (%T,%v)", m, ok)
-	}
-
-	// GetTypeName sanity
-	add := &messages.AddItem{}
-	nm, ok := reg.GetTypeName(add)
-	if !ok || nm != "AddItem" {
-		t.Fatalf("GetTypeName failed for AddItem, got (%q,%v)", nm, ok)
-	}
-
-	// Apply unregistered message -> result should contain ErrMutationNotRegistered, no top-level error
-	results, err := reg.Apply(context.Background(), newTestGrain(), &messages.Noop{})
-	if err != nil {
-		t.Fatalf("unexpected top-level error applying unregistered mutation: %v", err)
-	}
-	if len(results) != 1 || results[0].Error == nil || results[0].Error != actor.ErrMutationNotRegistered {
-		t.Fatalf("expected ApplyResult with ErrMutationNotRegistered, got %#v", results)
-	}
-}
-
-func TestAddItemAndMerging(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	// Merge scenario (same SKU + same store pointer)
-	add1 := msgAddItem("SKU-1", 1000, 2, nil)
-	applyOK(t, reg, g, add1)
-
-	if len(g.Items) != 1 || g.Items[0].Quantity != 2 {
-		t.Fatalf("expected first item added; items=%d qty=%d", len(g.Items), g.Items[0].Quantity)
-	}
-
-	applyOK(t, reg, g, msgAddItem("SKU-1", 1000, 3, nil)) // should merge
-	if len(g.Items) != 1 || g.Items[0].Quantity != 5 {
-		t.Fatalf("expected merge quantity=5 items=%d qty=%d", len(g.Items), g.Items[0].Quantity)
-	}
-
-	// Different store pointer -> new line
-	store := "S1"
-	applyOK(t, reg, g, msgAddItem("SKU-1", 1000, 1, &store))
-	if len(g.Items) != 2 {
-		t.Fatalf("expected second line for different store pointer; items=%d", len(g.Items))
-	}
-
-	// Same store pointer & SKU -> merge with second line
-	applyOK(t, reg, g, msgAddItem("SKU-1", 1000, 4, &store))
-	if len(g.Items) != 2 || g.Items[1].Quantity != 5 {
-		t.Fatalf("expected merge on second line; items=%d second.qty=%d", len(g.Items), g.Items[1].Quantity)
-	}
-
-	// Invalid quantity
-	applyErrorContains(t, reg, g, msgAddItem("BAD", 1000, 0, nil), "invalid quantity")
-}
-
-func TestChangeQuantityBehavior(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("A", 1500, 2, nil))
-	id := g.Items[0].Id
-
-	// Increase quantity
-	applyOK(t, reg, g, msgChangeQty(id, 5))
-	if g.Items[0].Quantity != 5 {
-		t.Fatalf("quantity not updated expected=5 got=%d", g.Items[0].Quantity)
-	}
-
-	// Remove item by setting <=0
-	applyOK(t, reg, g, msgChangeQty(id, 0))
-	if len(g.Items) != 0 {
-		t.Fatalf("expected item removed; items=%d", len(g.Items))
-	}
-
-	// Not found
-	applyErrorContains(t, reg, g, msgChangeQty(9999, 1), "not found")
-}
-
-func TestRemoveItemBehavior(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("X", 1200, 1, nil))
-	id := g.Items[0].Id
-
-	applyOK(t, reg, g, msgRemoveItem(id))
-	if len(g.Items) != 0 {
-		t.Fatalf("expected item removed; items=%d", len(g.Items))
-	}
-
-	applyErrorContains(t, reg, g, msgRemoveItem(id), "not found")
-}
-
-func TestDeliveryMutations(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("D1", 1000, 1, nil))
-	applyOK(t, reg, g, msgAddItem("D2", 2000, 1, nil))
-	i1 := g.Items[0].Id
-
-	// Explicit items
-	applyOK(t, reg, g, msgSetDelivery("POSTNORD", i1))
-	if len(g.Deliveries) != 1 || len(g.Deliveries[0].Items) != 1 || g.Deliveries[0].Items[0] != i1 {
-		t.Fatalf("delivery not created as expected: %+v", g.Deliveries)
-	}
-
-	// Attempt to attach an already-delivered item
-	applyErrorContains(t, reg, g, msgSetDelivery("POSTNORD", i1), "already has a delivery")
-
-	// Attach remaining item via empty list (auto include items without delivery)
-	applyOK(t, reg, g, msgSetDelivery("DHL"))
-	if len(g.Deliveries) != 2 {
-		t.Fatalf("expected second delivery; deliveries=%d", len(g.Deliveries))
-	}
-
-	// Non-existent item
-	applyErrorContains(t, reg, g, msgSetDelivery("UPS", 99999), "not found")
-
-	// No eligible items left
-	applyErrorContains(t, reg, g, msgSetDelivery("UPS"), "no eligible items")
-
-	// Set pickup point on first delivery
-	did := g.Deliveries[0].Id
-	applyOK(t, reg, g, msgSetPickupPoint(did, "PP1"))
-	if g.Deliveries[0].PickupPoint == nil || g.Deliveries[0].PickupPoint.Id != "PP1" {
-		t.Fatalf("pickup point not set correctly: %+v", g.Deliveries[0].PickupPoint)
-	}
-
-	// Bad delivery id
-	applyErrorContains(t, reg, g, msgSetPickupPoint(9999, "PPX"), "delivery id")
-
-	// Remove delivery
-	applyOK(t, reg, g, &messages.RemoveDelivery{Id: did})
-	if len(g.Deliveries) != 1 || g.Deliveries[0].Id == did {
-		t.Fatalf("expected first delivery removed, remaining: %+v", g.Deliveries)
-	}
-
-	// Remove delivery not found
-	applyErrorContains(t, reg, g, &messages.RemoveDelivery{Id: did}, "not found")
-}
-
-func TestClearCart(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("X", 1000, 2, nil))
-	applyOK(t, reg, g, msgSetDelivery("P", g.Items[0].Id))
-
-	applyOK(t, reg, g, msgClearCart())
-
-	if len(g.Items) != 0 || len(g.Deliveries) != 0 {
-		t.Fatalf("expected cart cleared; items=%d deliveries=%d", len(g.Items), len(g.Deliveries))
-	}
-}
-
-func TestVoucherMutations(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("VOUCH", 10000, 1, nil))
-	applyOK(t, reg, g, msgAddVoucher("PROMO", 5000))
-
-	if len(g.Vouchers) != 1 {
-		t.Fatalf("voucher not stored")
-	}
-	if g.TotalDiscount.IncVat != 5000 {
-		t.Fatalf("expected discount 5000 got %d", g.TotalDiscount.IncVat)
-	}
-	if g.TotalPrice.IncVat != 5000 {
-		t.Fatalf("expected total price 5000 got %d", g.TotalPrice.IncVat)
-	}
-
-	// Duplicate voucher code
-	applyErrorContains(t, reg, g, msgAddVoucher("PROMO", 1000), "already applied")
-
-	// Add a large voucher (should not apply because value > total price)
-	applyOK(t, reg, g, msgAddVoucher("BIG", 100000))
-	if len(g.Vouchers) != 2 {
-		t.Fatalf("expected second voucher stored")
-	}
-	if g.TotalDiscount.IncVat != 5000 || g.TotalPrice.IncVat != 5000 {
-		t.Fatalf("large voucher incorrectly applied discount=%d total=%d",
-			g.TotalDiscount.IncVat, g.TotalPrice.IncVat)
-	}
-
-	// Remove existing voucher
-	firstId := g.Vouchers[0].Id
-	applyOK(t, reg, g, msgRemoveVoucher(firstId))
-
-	if slices.ContainsFunc(g.Vouchers, func(v *Voucher) bool { return v.Id == firstId }) {
-		t.Fatalf("voucher id %d not removed", firstId)
-	}
-	// After removing PROMO, BIG remains but is not applied (exceeds price)
-	if g.TotalDiscount.IncVat != 0 || g.TotalPrice.IncVat != 10000 {
-		t.Fatalf("totals incorrect after removal discount=%d total=%d",
-			g.TotalDiscount.IncVat, g.TotalPrice.IncVat)
-	}
-
-	// Remove not applied
-	applyErrorContains(t, reg, g, msgRemoveVoucher(firstId), "not applied")
-}
-
-func TestCheckoutMutations(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgInitializeCheckout("ORD-1", "PENDING", true))
-	if g.OrderReference != "ORD-1" || g.PaymentStatus != "PENDING" || !g.PaymentInProgress {
-		t.Fatalf("initialize checkout failed: ref=%s status=%s inProgress=%v",
-			g.OrderReference, g.PaymentStatus, g.PaymentInProgress)
-	}
-
-	applyOK(t, reg, g, msgOrderCreated("ORD-1", "COMPLETED"))
-	if g.OrderReference != "ORD-1" || g.PaymentStatus != "COMPLETED" || g.PaymentInProgress {
-		t.Fatalf("order created mutation failed: ref=%s status=%s inProgress=%v",
-			g.OrderReference, g.PaymentStatus, g.PaymentInProgress)
-	}
-
-	applyErrorContains(t, reg, g, msgInitializeCheckout("", "X", true), "missing orderId")
-	applyErrorContains(t, reg, g, msgOrderCreated("", "X"), "missing orderId")
-}
-
-func TestSubscriptionDetailsMutation(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	// Upsert new (Id == nil)
-	msgNew := &messages.UpsertSubscriptionDetails{
-		OfferingCode: "OFF1",
-		SigningType:  "TYPE1",
-	}
-	applyOK(t, reg, g, msgNew)
-	if len(g.SubscriptionDetails) != 1 {
-		t.Fatalf("expected one subscription detail; got=%d", len(g.SubscriptionDetails))
-	}
-
-	// Capture created id
-	var createdId string
-	for k := range g.SubscriptionDetails {
-		createdId = k
-	}
-
-	// Update existing
-	msgUpdate := &messages.UpsertSubscriptionDetails{
-		Id:           &createdId,
-		OfferingCode: "OFF2",
-		SigningType:  "TYPE2",
-	}
-	applyOK(t, reg, g, msgUpdate)
-	if g.SubscriptionDetails[createdId].OfferingCode != "OFF2" ||
-		g.SubscriptionDetails[createdId].SigningType != "TYPE2" {
-		t.Fatalf("subscription details not updated: %+v", g.SubscriptionDetails[createdId])
-	}
-
-	// Update non-existent
-	badId := "NON_EXISTENT"
-	applyErrorContains(t, reg, g, &messages.UpsertSubscriptionDetails{Id: &badId}, "not found")
-
-	// Nil mutation should be ignored and produce zero results.
-	resultsNil, errNil := reg.Apply(context.Background(), g, (*messages.UpsertSubscriptionDetails)(nil))
-	if errNil != nil {
-		t.Fatalf("unexpected error for nil mutation element: %v", errNil)
-	}
-	if len(resultsNil) != 0 {
-		t.Fatalf("expected zero results for nil mutation, got %d", len(resultsNil))
-	}
-}
-
-// Ensure registry Apply handles nil grain and nil message defensive errors consistently.
-func TestRegistryDefensiveErrors(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	// Nil grain
-	results, err := reg.Apply(context.Background(), nil, &messages.AddItem{})
-	if err == nil {
-		t.Fatalf("expected error for nil grain")
-	}
-	if len(results) != 0 {
-		t.Fatalf("expected no results for nil grain")
-	}
-
-	// Nil message slice
-	results, _ = reg.Apply(context.Background(), g, nil)
-
-	if len(results) != 0 {
-		t.Fatalf("expected no results when message slice nil")
-	}
-}
-
-type SubscriptionDetailsRequest struct {
-	Id           *string         `json:"id,omitempty"`
-	OfferingCode string          `json:"offeringCode,omitempty"`
-	SigningType  string          `json:"signingType,omitempty"`
-	Data         json.RawMessage `json:"data,omitempty"`
-}
-
-func (sd *SubscriptionDetailsRequest) ToMessage() *messages.UpsertSubscriptionDetails {
-	return &messages.UpsertSubscriptionDetails{
-		Id:           sd.Id,
-		OfferingCode: sd.OfferingCode,
-		SigningType:  sd.SigningType,
-		Data:         &anypb.Any{Value: sd.Data},
-	}
-}
-
-func TestSubscriptionDetailsJSONValidation(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	// Valid JSON on create
-	jsonStr := `{"offeringCode": "OFFJSON", "signingType": "TYPEJSON", "data": {"value":"test","a":1}}`
-	var validCreate SubscriptionDetailsRequest
-	if err := json.Unmarshal([]byte(jsonStr), &validCreate); err != nil {
-		t.Fatal(err)
-	}
-	applyOK(t, reg, g, validCreate.ToMessage())
-	if len(g.SubscriptionDetails) != 1 {
-		t.Fatalf("expected one subscription detail after valid create, got %d", len(g.SubscriptionDetails))
-	}
-	var id string
-	for k := range g.SubscriptionDetails {
-		id = k
-	}
-	if string(g.SubscriptionDetails[id].Meta) != `{"value":"test","a":1}` {
-		t.Fatalf("expected meta stored as valid json, got %s", string(g.SubscriptionDetails[id].Meta))
-	}
-
-	// Update with valid JSON replaces meta
-	jsonStr2 := fmt.Sprintf(`{"id": "%s", "data": {"value": "eyJjaGFuZ2VkIjoxMjN9"}}`, id)
-	var updateValid messages.UpsertSubscriptionDetails
-	if err := json.Unmarshal([]byte(jsonStr2), &updateValid); err != nil {
-		t.Fatal(err)
-	}
-	applyOK(t, reg, g, &updateValid)
-	if string(g.SubscriptionDetails[id].Meta) != `{"changed":123}` {
-		t.Fatalf("expected meta updated to new json, got %s", string(g.SubscriptionDetails[id].Meta))
-	}
-
-	// Invalid JSON on create
-	jsonStr3 := `{"offeringCode": "BAD", "signingType": "TYPE", "data": {"value": "eyJicm9rZW4iO30="}}`
-	var invalidCreate messages.UpsertSubscriptionDetails
-	if err := json.Unmarshal([]byte(jsonStr3), &invalidCreate); err != nil {
-		t.Fatal(err)
-	}
-	res := applyOne(t, reg, g, &invalidCreate)
-	if res.Error == nil || !strings.Contains(res.Error.Error(), "invalid json") {
-		t.Fatalf("expected invalid json error on create, got %v", res.Error)
-	}
-
-	// Invalid JSON on update
-	jsonStr4 := fmt.Sprintf(`{"id": "%s", "data": {"value": "e29vcHM="}}`, id)
-	var badUpdate messages.UpsertSubscriptionDetails
-	if err := json.Unmarshal([]byte(jsonStr4), &badUpdate); err != nil {
-		t.Fatal(err)
-	}
-	res2 := applyOne(t, reg, g, &badUpdate)
-	if res2.Error == nil || !strings.Contains(res2.Error.Error(), "invalid json") {
-		t.Fatalf("expected invalid json error on update, got %v", res2.Error)
-	}
-
-	// Empty Data should not overwrite existing meta
-	jsonStr5 := fmt.Sprintf(`{"id": "%s"}`, id)
-	var emptyUpdate messages.UpsertSubscriptionDetails
-	if err := json.Unmarshal([]byte(jsonStr5), &emptyUpdate); err != nil {
-		t.Fatal(err)
-	}
-	applyOK(t, reg, g, &emptyUpdate)
-	if string(g.SubscriptionDetails[id].Meta) != `{"changed":123}` {
-		t.Fatalf("empty update should not change meta, got %s", string(g.SubscriptionDetails[id].Meta))
-	}
-}
-
-func TestSetUserId(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgSetUserId("user123"))
-	if g.userId != "user123" {
-		t.Fatalf("expected userId=user123, got %s", g.userId)
-	}
-
-	applyErrorContains(t, reg, g, msgSetUserId(""), "cannot be empty")
-}
-
-func TestLineItemMarking(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("MARK", 1000, 1, nil))
-	id := g.Items[0].Id
-
-	applyOK(t, reg, g, msgLineItemMarking(id, 1, "Gift message"))
-	if g.Items[0].Marking == nil || g.Items[0].Marking.Type != 1 || g.Items[0].Marking.Text != "Gift message" {
-		t.Fatalf("marking not set correctly: %+v", g.Items[0].Marking)
-	}
-
-	applyErrorContains(t, reg, g, msgLineItemMarking(9999, 2, "Test"), "not found")
-}
-
-func TestRemoveLineItemMarking(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("REMOVE", 1000, 1, nil))
-	id := g.Items[0].Id
-
-	// First set a marking
-	applyOK(t, reg, g, msgLineItemMarking(id, 1, "Test marking"))
-	if g.Items[0].Marking == nil || g.Items[0].Marking.Text != "Test marking" {
-		t.Fatalf("marking not set")
-	}
-
-	// Now remove it
-	applyOK(t, reg, g, msgRemoveLineItemMarking(id))
-	if g.Items[0].Marking != nil {
-		t.Fatalf("marking not removed")
-	}
-
-	applyErrorContains(t, reg, g, msgRemoveLineItemMarking(9999), "not found")
-}
-
-func TestSubscriptionAdded(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("SUB", 1000, 1, nil))
-	id := g.Items[0].Id
-
-	applyOK(t, reg, g, msgSubscriptionAdded(id, "det123", "ord456"))
-	if g.Items[0].SubscriptionDetailsId != "det123" || g.Items[0].OrderReference != "ord456" || !g.Items[0].IsSubscribed {
-		t.Fatalf("subscription not added: detailsId=%s orderRef=%s isSubscribed=%v",
-			g.Items[0].SubscriptionDetailsId, g.Items[0].OrderReference, g.Items[0].IsSubscribed)
-	}
-
-	applyErrorContains(t, reg, g, msgSubscriptionAdded(9999, "", ""), "not found")
-}
-
-func TestPaymentDeclined(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	g.CheckoutOrderId = "test-order"
-	applyOK(t, reg, g, msgPaymentDeclined())
-	if g.PaymentStatus != "declined" || g.CheckoutOrderId != "" {
-		t.Fatalf("payment declined not handled: status=%s checkoutId=%s", g.PaymentStatus, g.CheckoutOrderId)
-	}
-	if g.PaymentDeclinedAt.IsZero() {
-		t.Fatalf("PaymentDeclinedAt not set")
-	}
-}
-
-func TestConfirmationViewed(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	// Initial state
-	if g.ConfirmationViewCount != 0 {
-		t.Fatalf("initial view count should be 0, got %d", g.ConfirmationViewCount)
-	}
-	if !g.ConfirmationLastViewedAt.IsZero() {
-		t.Fatalf("initial last viewed should be zero")
-	}
-
-	// First view
-	applyOK(t, reg, g, msgConfirmationViewed())
-	if g.ConfirmationViewCount != 1 {
-		t.Fatalf("view count should be 1, got %d", g.ConfirmationViewCount)
-	}
-	if g.ConfirmationLastViewedAt.IsZero() {
-		t.Fatalf("ConfirmationLastViewedAt not set")
-	}
-	firstTime := g.ConfirmationLastViewedAt
-
-	// Second view
-	applyOK(t, reg, g, msgConfirmationViewed())
-	if g.ConfirmationViewCount != 2 {
-		t.Fatalf("view count should be 2, got %d", g.ConfirmationViewCount)
-	}
-	if g.ConfirmationLastViewedAt == firstTime {
-		t.Fatalf("ConfirmationLastViewedAt should have updated")
-	}
-}
-
-func TestCreateCheckoutOrder(t *testing.T) {
-	reg := newRegistry()
-	g := newTestGrain()
-
-	applyOK(t, reg, g, msgAddItem("CHECKOUT", 1000, 1, nil))
-
-	applyOK(t, reg, g, msgCreateCheckoutOrder("accepted", "SE"))
-	if g.CheckoutOrderId == "" || g.CheckoutStatus != "pending" || g.CheckoutCountry != "SE" {
-		t.Fatalf("checkout order not created: id=%s status=%s country=%s",
-			g.CheckoutOrderId, g.CheckoutStatus, g.CheckoutCountry)
-	}
-
-	// Empty cart
-	g2 := newTestGrain()
-	applyErrorContains(t, reg, g2, msgCreateCheckoutOrder("accepted", ""), "empty cart")
-
-	// Terms not accepted
-	applyErrorContains(t, reg, g, msgCreateCheckoutOrder("no", ""), "terms must be accepted")
-}

pkg/cart/mutation_upsert_subscriptiondetails.go

@@ -1,64 +0,0 @@
-package cart
-
-import (
-	"encoding/json"
-	"fmt"
-
-	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-)
-
-func UpsertSubscriptionDetails(g *CartGrain, m *messages.UpsertSubscriptionDetails) error {
-	if m == nil {
-		return nil
-	}
-	metaBytes := m.Data.GetValue()
-
-	// Create new subscription details when Id is nil.
-	if m.Id == nil {
-		// Validate JSON if provided.
-		var meta json.RawMessage
-		if metaBytes != nil {
-			if !json.Valid(metaBytes) {
-				return fmt.Errorf("subscription details invalid json")
-			}
-			meta = json.RawMessage(metaBytes)
-		}
-
-		id := MustNewCartId().String()
-
-		g.SubscriptionDetails[id] = &SubscriptionDetails{
-			Id:           id,
-			Version:      1,
-			OfferingCode: m.OfferingCode,
-			SigningType:  m.SigningType,
-			Meta:         meta,
-		}
-		return nil
-	}
-
-	// Update existing entry.
-	existing, ok := g.SubscriptionDetails[*m.Id]
-	if !ok {
-		return fmt.Errorf("subscription details with id %s not found", *m.Id)
-	}
-	changed := false
-	if m.OfferingCode != "" {
-		existing.OfferingCode = m.OfferingCode
-		changed = true
-	}
-	if m.SigningType != "" {
-		existing.SigningType = m.SigningType
-		changed = true
-	}
-	if metaBytes != nil {
-		if !json.Valid(metaBytes) {
-			return fmt.Errorf("subscription details invalid json")
-		}
-		existing.Meta = json.RawMessage(metaBytes)
-		changed = true
-	}
-	if changed {
-		existing.Version++
-	}
-	return nil
-}

pkg/discovery/discovery.go

@@ -2,8 +2,6 @@ package discovery
 
 import (
 	"context"
-	"slices"
-	"sync"
 
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -35,10 +33,13 @@ func (k *K8sDiscovery) DiscoverInNamespace(namespace string) ([]string, error) {
 	return hosts, nil
 }
 
+type HostChange struct {
+	Host string
+	Type watch.EventType
+}
+
 func (k *K8sDiscovery) Watch() (<-chan HostChange, error) {
 	timeout := int64(30)
-	ipsThatAreReady := make(map[string]bool)
-	m := sync.Mutex{}
 	watcherFn := func(options metav1.ListOptions) (watch.Interface, error) {
 		return k.client.CoreV1().Pods("").Watch(k.ctx, metav1.ListOptions{
 			LabelSelector:  "actor-pool=cart",
@@ -54,22 +55,10 @@ func (k *K8sDiscovery) Watch() (<-chan HostChange, error) {
 		for event := range watcher.ResultChan() {
 
 			pod := event.Object.(*v1.Pod)
-			isReady := slices.ContainsFunc(pod.Status.Conditions, func(condition v1.PodCondition) bool {
-				return condition.Type == v1.PodReady && condition.Status == v1.ConditionTrue
-			})
-			m.Lock()
-			oldState := ipsThatAreReady[pod.Status.PodIP]
-			ipsThatAreReady[pod.Status.PodIP] = isReady
-			m.Unlock()
-			if oldState != isReady {
-				ch <- HostChange{
-					Host:    pod.Status.PodIP,
-					IsReady: isReady,
-				}
-			}
+			// log.Printf("pod change %+v", pod.Status.Phase == v1.PodRunning)
 			ch <- HostChange{
-				Host:    pod.Status.PodIP,
-				IsReady: isReady,
+				Host: pod.Status.PodIP,
+				Type: event.Type,
 			}
 		}
 	}()

pkg/discovery/discovery_mock.go

@@ -2,8 +2,9 @@ package discovery
 
 import (
 	"context"
-	"slices"
 	"sync"
+
+	"k8s.io/apimachinery/pkg/watch"
 )
 
 // MockDiscovery is an in-memory Discovery implementation for tests.
@@ -55,12 +56,14 @@ func (m *MockDiscovery) AddHost(host string) {
 	if m.closed {
 		return
 	}
-	if slices.Contains(m.hosts, host) {
-		return
+	for _, h := range m.hosts {
+		if h == host {
+			return
+		}
 	}
 	m.hosts = append(m.hosts, host)
 	if m.started {
-		m.events <- HostChange{Host: host, IsReady: true}
+		m.events <- HostChange{Host: host, Type: watch.Added}
 	}
 }
 
@@ -83,7 +86,7 @@ func (m *MockDiscovery) RemoveHost(host string) {
 	}
 	m.hosts = append(m.hosts[:idx], m.hosts[idx+1:]...)
 	if m.started {
-		m.events <- HostChange{Host: host, IsReady: false}
+		m.events <- HostChange{Host: host, Type: watch.Deleted}
 	}
 }
 

pkg/discovery/types.go

@@ -1,10 +1,5 @@
 package discovery
 
-type HostChange struct {
-	Host    string
-	IsReady bool
-}
-
 type Discovery interface {
 	Discover() ([]string, error)
 	Watch() (<-chan HostChange, error)

pkg/messages/control_plane.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.36.5
-// 	protoc        v6.33.1
+// 	protoc        v5.29.3
 // source: control_plane.proto
 
 package messages

pkg/messages/control_plane_grpc.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.5.1
-// - protoc             v6.33.1
+// - protoc             v5.29.3
 // source: control_plane.proto
 
 package messages

pkg/promotions/eval.go

@@ -1,724 +0,0 @@
-package promotions
-
-import (
-	"errors"
-	"fmt"
-	"slices"
-	"strings"
-	"time"
-
-	"git.tornberg.me/go-cart-actor/pkg/cart"
-)
-
-var errInvalidTimeFormat = errors.New("invalid time format")
-
-// Tracer allows callers to receive structured debug information during evaluation.
-type Tracer interface {
-	Trace(event string, data map[string]any)
-}
-
-// NoopTracer is used when no tracer provided.
-type NoopTracer struct{}
-
-func (NoopTracer) Trace(string, map[string]any) {}
-
-// PromotionItem is a lightweight abstraction derived from cart.CartItem
-// for the purpose of promotion condition evaluation.
-type PromotionItem struct {
-	SKU         string
-	Quantity    int
-	Category    string
-	PriceIncVat int64
-}
-
-// PromotionEvalContext carries all dynamic data required to evaluate promotion
-// conditions. It can be constructed from a cart.CartGrain plus optional
-// customer/order metadata.
-type PromotionEvalContext struct {
-	CartTotalIncVat       int64
-	TotalItemQuantity     int
-	Items                 []PromotionItem
-	CustomerSegment       string
-	CustomerLifetimeValue float64
-	OrderCount            int
-	Now                   time.Time
-}
-
-// ContextOption allows customization of fields when building a PromotionEvalContext.
-type ContextOption func(*PromotionEvalContext)
-
-// WithCustomerSegment sets the customer segment.
-func WithCustomerSegment(seg string) ContextOption {
-	return func(c *PromotionEvalContext) { c.CustomerSegment = seg }
-}
-
-// WithCustomerLifetimeValue sets lifetime value metric.
-func WithCustomerLifetimeValue(v float64) ContextOption {
-	return func(c *PromotionEvalContext) { c.CustomerLifetimeValue = v }
-}
-
-// WithOrderCount sets historical order count.
-func WithOrderCount(n int) ContextOption {
-	return func(c *PromotionEvalContext) { c.OrderCount = n }
-}
-
-// WithNow overrides the timestamp used for date/time related conditions.
-func WithNow(t time.Time) ContextOption {
-	return func(c *PromotionEvalContext) { c.Now = t }
-}
-
-// NewContextFromCart builds a PromotionEvalContext from a CartGrain and optional metadata.
-func NewContextFromCart(g *cart.CartGrain, opts ...ContextOption) *PromotionEvalContext {
-	ctx := &PromotionEvalContext{
-		Items:             make([]PromotionItem, 0, len(g.Items)),
-		CartTotalIncVat:   0,
-		TotalItemQuantity: 0,
-		Now:               time.Now(),
-	}
-	if g.TotalPrice != nil {
-		ctx.CartTotalIncVat = g.TotalPrice.IncVat
-	}
-	for _, it := range g.Items {
-		category := ""
-		if it.Meta != nil {
-			category = it.Meta.Category
-		}
-		ctx.Items = append(ctx.Items, PromotionItem{
-			SKU:         it.Sku,
-			Quantity:    it.Quantity,
-			Category:    strings.ToLower(category),
-			PriceIncVat: it.Price.IncVat,
-		})
-		ctx.TotalItemQuantity += it.Quantity
-	}
-	for _, o := range opts {
-		o(ctx)
-	}
-	return ctx
-}
-
-// PromotionService evaluates PromotionRules against a PromotionEvalContext.
-type PromotionService struct {
-	tracer Tracer
-}
-
-// NewPromotionService constructs a PromotionService with an optional tracer.
-func NewPromotionService(t Tracer) *PromotionService {
-	if t == nil {
-		t = NoopTracer{}
-	}
-	return &PromotionService{tracer: t}
-}
-
-// EvaluationResult holds the outcome of evaluating a single rule.
-type EvaluationResult struct {
-	Rule           PromotionRule
-	Applicable     bool
-	FailedReason   string
-	MatchedActions []Action
-}
-
-// EvaluateRule determines if a single PromotionRule applies to the provided context.
-// Returns an EvaluationResult with applicability and actions (if applicable).
-func (s *PromotionService) EvaluateRule(rule PromotionRule, ctx *PromotionEvalContext) EvaluationResult {
-	s.tracer.Trace("rule_start", map[string]any{
-		"rule_id":   rule.ID,
-		"priority":  rule.Priority,
-		"status":    rule.Status,
-		"startDate": rule.StartDate,
-		"endDate":   rule.EndDate,
-	})
-	// Status gate
-	now := ctx.Now
-	switch rule.Status {
-	case StatusInactive, StatusExpired:
-		s.tracer.Trace("rule_skip_status", map[string]any{"rule_id": rule.ID, "status": rule.Status})
-		return EvaluationResult{Rule: rule, Applicable: false, FailedReason: "status"}
-	case StatusScheduled:
-		// Allow scheduled only if current time >= startDate (and within endDate if present)
-	}
-	// Date window checks (if parseable)
-	if rule.StartDate != "" {
-		if tStart, err := parseDate(rule.StartDate); err == nil {
-			if now.Before(tStart) {
-				s.tracer.Trace("rule_skip_before_start", map[string]any{"rule_id": rule.ID})
-				return EvaluationResult{Rule: rule, Applicable: false, FailedReason: "before_start"}
-			}
-		}
-	}
-	if rule.EndDate != nil && *rule.EndDate != "" {
-		if tEnd, err := parseDate(*rule.EndDate); err == nil {
-			if now.After(tEnd.Add(23*time.Hour + 59*time.Minute + 59*time.Second)) { // inclusive day
-				s.tracer.Trace("rule_skip_after_end", map[string]any{"rule_id": rule.ID})
-				return EvaluationResult{Rule: rule, Applicable: false, FailedReason: "after_end"}
-			}
-		}
-	}
-	// Usage limit
-	if rule.UsageLimit != nil && rule.UsageCount >= *rule.UsageLimit {
-		s.tracer.Trace("rule_skip_usage_limit", map[string]any{"rule_id": rule.ID, "usageCount": rule.UsageCount, "limit": *rule.UsageLimit})
-		return EvaluationResult{Rule: rule, Applicable: false, FailedReason: "usage_limit_exhausted"}
-	}
-
-	if !evaluateConditionsTrace(rule.Conditions, ctx, s.tracer, rule.ID) {
-		s.tracer.Trace("rule_conditions_failed", map[string]any{"rule_id": rule.ID})
-		return EvaluationResult{Rule: rule, Applicable: false, FailedReason: "conditions"}
-	}
-
-	s.tracer.Trace("rule_applicable", map[string]any{"rule_id": rule.ID})
-	return EvaluationResult{
-		Rule:           rule,
-		Applicable:     true,
-		MatchedActions: rule.Actions,
-	}
-}
-
-// EvaluateAll returns all applicable promotion actions given a list of rules and context.
-// Rules marked Applicable are sorted by Priority (ascending: lower number = higher precedence).
-func (s *PromotionService) EvaluateAll(rules []PromotionRule, ctx *PromotionEvalContext) ([]EvaluationResult, []Action) {
-	results := make([]EvaluationResult, 0, len(rules))
-	for _, r := range rules {
-		res := s.EvaluateRule(r, ctx)
-		results = append(results, res)
-	}
-	actions := make([]Action, 0)
-	for _, res := range orderedByPriority(results) {
-		if res.Applicable {
-			s.tracer.Trace("actions_add", map[string]any{
-				"rule_id":  res.Rule.ID,
-				"count":    len(res.MatchedActions),
-				"priority": res.Rule.Priority,
-			})
-			actions = append(actions, res.MatchedActions...)
-		}
-	}
-	s.tracer.Trace("evaluation_complete", map[string]any{
-		"rules_total": len(rules),
-		"actions":     len(actions),
-	})
-	return results, actions
-}
-
-// orderedByPriority returns results sorted by PromotionRule.Priority ascending (stable).
-func orderedByPriority(in []EvaluationResult) []EvaluationResult {
-	out := make([]EvaluationResult, len(in))
-	copy(out, in)
-	for i := 1; i < len(out); i++ {
-		j := i
-		for j > 0 && out[j-1].Rule.Priority > out[j].Rule.Priority {
-			out[j-1], out[j] = out[j], out[j-1]
-			j--
-		}
-	}
-	return out
-}
-
-// ----------------------------
-// Condition evaluation (with tracing)
-// ----------------------------
-
-func evaluateConditionsTrace(conds Conditions, ctx *PromotionEvalContext, t Tracer, ruleID string) bool {
-	for idx, c := range conds {
-		if !evaluateConditionTrace(c, ctx, t, ruleID, fmt.Sprintf("root[%d]", idx)) {
-			return false
-		}
-	}
-	return true
-}
-
-func evaluateConditionTrace(c Condition, ctx *PromotionEvalContext, t Tracer, ruleID, path string) bool {
-	if grp, ok := c.(ConditionGroup); ok {
-		return evaluateGroupTrace(grp, ctx, t, ruleID, path)
-	}
-	bc, ok := c.(BaseCondition)
-	if !ok {
-		t.Trace("cond_invalid_type", map[string]any{"rule_id": ruleID, "path": path})
-		return false
-	}
-	res := evaluateBaseCondition(bc, ctx)
-	t.Trace("cond_base", map[string]any{
-		"rule_id": ruleID,
-		"path":    path,
-		"type":    bc.Type,
-		"op":      bc.Operator,
-		"value":   bc.Value.String(),
-		"result":  res,
-	})
-	return res
-}
-
-func evaluateGroupTrace(g ConditionGroup, ctx *PromotionEvalContext, t Tracer, ruleID, path string) bool {
-	op := normalizeLogicOperator(string(g.Operator))
-	if len(g.Conditions) == 0 {
-		t.Trace("cond_group_empty", map[string]any{"rule_id": ruleID, "path": path})
-		return true
-	}
-	if op == string(LogicAND) {
-		for i, child := range g.Conditions {
-			if !evaluateConditionTrace(child, ctx, t, ruleID, path+fmt.Sprintf(".AND[%d]", i)) {
-				t.Trace("cond_group_and_fail", map[string]any{"rule_id": ruleID, "path": path})
-				return false
-			}
-		}
-		t.Trace("cond_group_and_pass", map[string]any{"rule_id": ruleID, "path": path})
-		return true
-	}
-	for i, child := range g.Conditions {
-		if evaluateConditionTrace(child, ctx, t, ruleID, path+fmt.Sprintf(".OR[%d]", i)) {
-			t.Trace("cond_group_or_pass", map[string]any{"rule_id": ruleID, "path": path})
-			return true
-		}
-	}
-	t.Trace("cond_group_or_fail", map[string]any{"rule_id": ruleID, "path": path})
-	return false
-}
-
-// Fallback non-traced evaluation (used internally by traced path)
-func evaluateConditions(conds Conditions, ctx *PromotionEvalContext) bool {
-	for _, c := range conds {
-		if !evaluateCondition(c, ctx) {
-			return false
-		}
-	}
-	return true
-}
-
-func evaluateCondition(c Condition, ctx *PromotionEvalContext) bool {
-	if grp, ok := c.(ConditionGroup); ok {
-		return evaluateGroup(grp, ctx)
-	}
-	bc, ok := c.(BaseCondition)
-	if !ok {
-		return false
-	}
-	return evaluateBaseCondition(bc, ctx)
-}
-
-func evaluateGroup(g ConditionGroup, ctx *PromotionEvalContext) bool {
-	op := normalizeLogicOperator(string(g.Operator))
-	if len(g.Conditions) == 0 {
-		return true
-	}
-	if op == string(LogicAND) {
-		for _, child := range g.Conditions {
-			if !evaluateCondition(child, ctx) {
-				return false
-			}
-		}
-		return true
-	}
-	for _, child := range g.Conditions {
-		if evaluateCondition(child, ctx) {
-			return true
-		}
-	}
-	return false
-}
-
-func evaluateBaseCondition(b BaseCondition, ctx *PromotionEvalContext) bool {
-	switch b.Type {
-	case CondCartTotal:
-		return evalNumberCompare(float64(ctx.CartTotalIncVat), b)
-	case CondItemQuantity:
-		return evalNumberCompare(float64(ctx.TotalItemQuantity), b)
-	case CondCustomerSegment:
-		return evalStringCompare(ctx.CustomerSegment, b)
-	case CondProductCategory:
-		return evalAnyItemMatch(func(it PromotionItem) bool {
-			return evalValueAgainstTarget(strings.ToLower(it.Category), b)
-		}, b, ctx)
-	case CondProductID:
-		return evalAnyItemMatch(func(it PromotionItem) bool {
-			return evalValueAgainstTarget(strings.ToLower(it.SKU), b)
-		}, b, ctx)
-	case CondCustomerLifetime:
-		return evalNumberCompare(ctx.CustomerLifetimeValue, b)
-	case CondOrderCount:
-		return evalNumberCompare(float64(ctx.OrderCount), b)
-	case CondDateRange:
-		return evalDateRange(ctx.Now, b)
-	case CondDayOfWeek:
-		return evalDayOfWeek(ctx.Now, b)
-	case CondTimeOfDay:
-		return evalTimeOfDay(ctx.Now, b)
-	default:
-		return false
-	}
-}
-
-func evalAnyItemMatch(pred func(PromotionItem) bool, b BaseCondition, ctx *PromotionEvalContext) bool {
-	if slices.ContainsFunc(ctx.Items, pred) {
-		return true
-	}
-	switch normalizeOperator(string(b.Operator)) {
-	case string(OpNotIn), string(OpNotContains):
-		return true
-	}
-	return false
-}
-
-// ----------------------------
-// Primitive evaluators
-// ----------------------------
-
-func evalNumberCompare(target float64, b BaseCondition) bool {
-	op := normalizeOperator(string(b.Operator))
-	cond, ok := b.Value.AsFloat64()
-	if !ok {
-		if list, okL := b.Value.AsFloat64Slice(); okL && (op == string(OpIn) || op == string(OpNotIn)) {
-			found := sliceFloatContains(list, target)
-			if op == string(OpIn) {
-				return found
-			}
-			return !found
-		}
-		return false
-	}
-	switch op {
-	case string(OpEquals):
-		return target == cond
-	case string(OpNotEquals):
-		return target != cond
-	case string(OpGreaterThan):
-		return target > cond
-	case string(OpLessThan):
-		return target < cond
-	case string(OpGreaterOrEqual):
-		return target >= cond
-	case string(OpLessOrEqual):
-		return target <= cond
-	default:
-		return false
-	}
-}
-
-func evalStringCompare(target string, b BaseCondition) bool {
-	op := normalizeOperator(string(b.Operator))
-	targetLower := strings.ToLower(target)
-
-	if s, ok := b.Value.AsString(); ok {
-		condLower := strings.ToLower(s)
-		switch op {
-		case string(OpEquals):
-			return targetLower == condLower
-		case string(OpNotEquals):
-			return targetLower != condLower
-		case string(OpContains):
-			return strings.Contains(targetLower, condLower)
-		case string(OpNotContains):
-			return !strings.Contains(targetLower, condLower)
-		}
-	}
-
-	if arr, ok := b.Value.AsStringSlice(); ok {
-		switch op {
-		case string(OpIn):
-			for _, v := range arr {
-				if targetLower == strings.ToLower(v) {
-					return true
-				}
-			}
-			return false
-		case string(OpNotIn):
-			for _, v := range arr {
-				if targetLower == strings.ToLower(v) {
-					return false
-				}
-			}
-			return true
-		case string(OpContains):
-			for _, v := range arr {
-				if strings.Contains(targetLower, strings.ToLower(v)) {
-					return true
-				}
-			}
-			return false
-		case string(OpNotContains):
-			for _, v := range arr {
-				if strings.Contains(targetLower, strings.ToLower(v)) {
-					return false
-				}
-			}
-			return true
-		}
-	}
-
-	return false
-}
-
-func evalValueAgainstTarget(target string, b BaseCondition) bool {
-	op := normalizeOperator(string(b.Operator))
-	tLower := strings.ToLower(target)
-
-	if s, ok := b.Value.AsString(); ok {
-		vLower := strings.ToLower(s)
-		switch op {
-		case string(OpEquals):
-			return tLower == vLower
-		case string(OpNotEquals):
-			return tLower != vLower
-		case string(OpContains):
-			return strings.Contains(tLower, vLower)
-		case string(OpNotContains):
-			return !strings.Contains(tLower, vLower)
-		case string(OpIn):
-			return tLower == vLower
-		case string(OpNotIn):
-			return tLower != vLower
-		}
-	}
-
-	if list, ok := b.Value.AsStringSlice(); ok {
-		found := false
-		for _, v := range list {
-			if tLower == strings.ToLower(v) {
-				found = true
-				break
-			}
-		}
-		switch op {
-		case string(OpIn):
-			return found
-		case string(OpNotIn):
-			return !found
-		case string(OpContains):
-			for _, v := range list {
-				if strings.Contains(tLower, strings.ToLower(v)) {
-					return true
-				}
-			}
-			return false
-		case string(OpNotContains):
-			for _, v := range list {
-				if strings.Contains(tLower, strings.ToLower(v)) {
-					return false
-				}
-			}
-			return true
-		}
-	}
-
-	return false
-}
-
-func evalDateRange(now time.Time, b BaseCondition) bool {
-	var start, end time.Time
-	if ss, ok := b.Value.AsStringSlice(); ok && len(ss) == 2 {
-		t0, e0 := parseDate(ss[0])
-		t1, e1 := parseDate(ss[1])
-		if e0 != nil || e1 != nil {
-			return false
-		}
-		start, end = t0, t1
-	} else if s, ok := b.Value.AsString(); ok {
-		parts := strings.Split(s, "..")
-		if len(parts) != 2 {
-			return false
-		}
-		t0, e0 := parseDate(parts[0])
-		t1, e1 := parseDate(parts[1])
-		if e0 != nil || e1 != nil {
-			return false
-		}
-		start, end = t0, t1
-	} else {
-		return false
-	}
-	endInclusive := end.Add(23*time.Hour + 59*time.Minute + 59*time.Second)
-	return (now.Equal(start) || now.After(start)) && (now.Equal(endInclusive) || now.Before(endInclusive))
-}
-
-func evalDayOfWeek(now time.Time, b BaseCondition) bool {
-	dow := int(now.Weekday())
-	allowed := make(map[int]struct{})
-	if arr, ok := b.Value.AsStringSlice(); ok {
-		for _, v := range arr {
-			if idx, ok := parseDayOfWeek(v); ok {
-				allowed[idx] = struct{}{}
-			}
-		}
-	} else if s, ok := b.Value.AsString(); ok {
-		for _, part := range strings.Split(s, "|") {
-			if idx, ok := parseDayOfWeek(strings.TrimSpace(part)); ok {
-				allowed[idx] = struct{}{}
-			}
-		}
-	} else {
-		return false
-	}
-
-	if len(allowed) == 0 {
-		return false
-	}
-	op := normalizeOperator(string(b.Operator))
-	_, present := allowed[dow]
-	if op == string(OpIn) || op == string(OpEquals) || op == "" {
-		return present
-	}
-	if op == string(OpNotIn) || op == string(OpNotEquals) {
-		return !present
-	}
-	return present
-}
-
-func evalTimeOfDay(now time.Time, b BaseCondition) bool {
-	var startMin, endMin int
-	if arr, ok := b.Value.AsStringSlice(); ok && len(arr) == 2 {
-		s0, e0 := parseClock(arr[0])
-		s1, e1 := parseClock(arr[1])
-		if e0 != nil || e1 != nil {
-			return false
-		}
-		startMin, endMin = s0, s1
-	} else if s, ok := b.Value.AsString(); ok {
-		parts := strings.Split(s, "-")
-		if len(parts) != 2 {
-			return false
-		}
-		s0, e0 := parseClock(parts[0])
-		s1, e1 := parseClock(parts[1])
-		if e0 != nil || e1 != nil {
-			return false
-		}
-		startMin, endMin = s0, s1
-	} else {
-		return false
-	}
-	todayMin := now.Hour()*60 + now.Minute()
-	if startMin > endMin {
-		return todayMin >= startMin || todayMin <= endMin
-	}
-	return todayMin >= startMin && todayMin <= endMin
-}
-
-// ----------------------------
-// Parsing helpers
-// ----------------------------
-
-func parseDate(s string) (time.Time, error) {
-	layouts := []string{
-		"2006-01-02",
-		time.RFC3339,
-		"2006-01-02T15:04:05Z07:00",
-	}
-	for _, l := range layouts {
-		if t, err := time.Parse(l, strings.TrimSpace(s)); err == nil {
-			return t, nil
-		}
-	}
-	return time.Time{}, errInvalidTimeFormat
-}
-
-func parseDayOfWeek(s string) (int, bool) {
-	sl := strings.ToLower(strings.TrimSpace(s))
-	switch sl {
-	case "sun", "sunday", "0":
-		return 0, true
-	case "mon", "monday", "1":
-		return 1, true
-	case "tue", "tues", "tuesday", "2":
-		return 2, true
-	case "wed", "weds", "wednesday", "3":
-		return 3, true
-	case "thu", "thur", "thurs", "thursday", "4":
-		return 4, true
-	case "fri", "friday", "5":
-		return 5, true
-	case "sat", "saturday", "6":
-		return 6, true
-	default:
-		return 0, false
-	}
-}
-
-func parseClock(s string) (int, error) {
-	s = strings.TrimSpace(s)
-	parts := strings.Split(s, ":")
-	if len(parts) != 2 {
-		return 0, errInvalidTimeFormat
-	}
-	h, err := parsePositiveInt(parts[0])
-	if err != nil {
-		return 0, err
-	}
-	m, err := parsePositiveInt(parts[1])
-	if err != nil {
-		return 0, err
-	}
-	if h < 0 || h > 23 || m < 0 || m > 59 {
-		return 0, errInvalidTimeFormat
-	}
-	return h*60 + m, nil
-}
-
-func parsePositiveInt(s string) (int, error) {
-	n := 0
-	for _, r := range s {
-		if r < '0' || r > '9' {
-			return 0, errInvalidTimeFormat
-		}
-		n = n*10 + int(r-'0')
-	}
-	return n, nil
-}
-
-func normalizeOperator(op string) string {
-	o := strings.ToLower(strings.TrimSpace(op))
-	switch o {
-	case "=", "equals", "eq":
-		return string(OpEquals)
-	case "!=", "not_equals", "neq":
-		return string(OpNotEquals)
-	case ">", "greater_than", "gt":
-		return string(OpGreaterThan)
-	case "<", "less_than", "lt":
-		return string(OpLessThan)
-	case ">=", "greater_or_equal", "ge", "gte":
-		return string(OpGreaterOrEqual)
-	case "<=", "less_or_equal", "le", "lte":
-		return string(OpLessOrEqual)
-	case "contains":
-		return string(OpContains)
-	case "not_contains":
-		return string(OpNotContains)
-	case "in":
-		return string(OpIn)
-	case "not_in":
-		return string(OpNotIn)
-	default:
-		return o
-	}
-}
-
-func normalizeLogicOperator(op string) string {
-	o := strings.ToLower(strings.TrimSpace(op))
-	switch o {
-	case "&&", "and":
-		return string(LogicAND)
-	case "||", "or":
-		return string(LogicOR)
-	default:
-		return o
-	}
-}
-
-func sliceFloatContains(list []float64, v float64) bool {
-	return slices.Contains(list, v)
-}
-
-// ----------------------------
-// Potential extension hooks
-// ----------------------------
-//
-// Future ideas:
-//   - Conflict resolution strategies (e.g., best discount wins, stackable tags)
-//   - Action transformation (e.g., applying tiered logic or bundles carefully)
-//   - Recording evaluation traces for debugging / analytics.
-//   - Tracing instrumentation for condition evaluation.
-//
-// These can be integrated by adding strategy interfaces or injecting evaluators
-// into PromotionService.
-//
-// ----------------------------
-// End of file
-// ----------------------------

pkg/promotions/eval_test.go

@@ -1,448 +0,0 @@
-package promotions
-
-import (
-	"encoding/json"
-	"slices"
-	"testing"
-	"time"
-
-	"git.tornberg.me/go-cart-actor/pkg/cart"
-)
-
-// --- Helpers ---------------------------------------------------------------
-
-func cvNum(n float64) ConditionValue {
-	b, _ := json.Marshal(n)
-	return ConditionValue{Raw: b}
-}
-
-func cvString(s string) ConditionValue {
-	b, _ := json.Marshal(s)
-	return ConditionValue{Raw: b}
-}
-
-func cvStrings(ss []string) ConditionValue {
-	b, _ := json.Marshal(ss)
-	return ConditionValue{Raw: b}
-}
-
-// testTracer captures trace events for assertions.
-type testTracer struct {
-	events []traceEvent
-}
-
-type traceEvent struct {
-	event string
-	data  map[string]any
-}
-
-func (t *testTracer) Trace(event string, data map[string]any) {
-	t.events = append(t.events, traceEvent{event: event, data: data})
-}
-
-func (t *testTracer) HasEvent(name string) bool {
-	return slices.ContainsFunc(t.events, func(e traceEvent) bool { return e.event == name })
-}
-
-func (t *testTracer) Count(name string) int {
-	c := 0
-	for _, e := range t.events {
-		if e.event == name {
-			c++
-		}
-	}
-	return c
-}
-
-// makeCart creates a cart with given total and items (each item quantity & price IncVat).
-func makeCart(totalOverride int64, items []struct {
-	sku      string
-	category string
-	qty      int
-	priceInc int64
-}) *cart.CartGrain {
-	g := cart.NewCartGrain(1, time.Now())
-	for _, it := range items {
-		p := cart.NewPriceFromIncVat(it.priceInc, 0.25)
-		g.Items = append(g.Items, &cart.CartItem{
-			Id:    uint32(len(g.Items) + 1),
-			Sku:   it.sku,
-			Price: *p,
-			TotalPrice: cart.Price{
-				IncVat:   p.IncVat * int64(it.qty),
-				VatRates: p.VatRates,
-			},
-			Quantity: it.qty,
-			Meta: &cart.ItemMeta{
-				Category: it.category,
-			},
-		})
-	}
-	// Recalculate totals
-	g.UpdateTotals()
-	if totalOverride >= 0 {
-		g.TotalPrice.IncVat = totalOverride
-	}
-	return g
-}
-
-// --- Tests -----------------------------------------------------------------
-
-func TestEvaluateRuleBasicAND(t *testing.T) {
-	g := makeCart(12000, []struct {
-		sku      string
-		category string
-		qty      int
-		priceInc int64
-	}{
-		{"SKU-1", "summer", 2, 3000},
-		{"SKU-2", "winter", 1, 6000},
-	})
-
-	ctx := NewContextFromCart(g,
-		WithCustomerSegment("vip"),
-		WithOrderCount(10),
-		WithCustomerLifetimeValue(1234.56),
-		WithNow(time.Date(2024, 6, 10, 12, 0, 0, 0, time.UTC)),
-	)
-
-	// Conditions: cart_total >= 10000 AND item_quantity >= 3 AND customer_segment = vip
-	conds := Conditions{
-		ConditionGroup{
-			ID:       "grp",
-			Type:     "group",
-			Operator: LogicAND,
-			Conditions: Conditions{
-				BaseCondition{
-					ID:       "c_cart_total",
-					Type:     CondCartTotal,
-					Operator: OpGreaterOrEqual,
-					Value:    cvNum(10000),
-				},
-				BaseCondition{
-					ID:       "c_item_qty",
-					Type:     CondItemQuantity,
-					Operator: OpGreaterOrEqual,
-					Value:    cvNum(3),
-				},
-				BaseCondition{
-					ID:       "c_segment",
-					Type:     CondCustomerSegment,
-					Operator: OpEquals,
-					Value:    cvString("vip"),
-				},
-			},
-		},
-	}
-
-	rule := PromotionRule{
-		ID:          "rule-AND",
-		Name:        "VIP Summer",
-		Description: "Test rule",
-		Status:      StatusActive,
-		Priority:    1,
-		StartDate:   "2024-06-01",
-		EndDate:     ptr("2024-06-30"),
-		Conditions:  conds,
-		Actions: []Action{
-			{ID: "a1", Type: ActionPercentageDiscount, Value: 10.0},
-		},
-		UsageLimit: ptrInt(100),
-		UsageCount: 5,
-		CreatedAt:  time.Now().Format(time.RFC3339),
-		UpdatedAt:  time.Now().Format(time.RFC3339),
-		CreatedBy:  "tester",
-	}
-
-	tracer := &testTracer{}
-	svc := NewPromotionService(tracer)
-	res := svc.EvaluateRule(rule, ctx)
-	if !res.Applicable {
-		t.Fatalf("expected rule to be applicable, failedReason=%s", res.FailedReason)
-	}
-	if len(res.MatchedActions) != 1 {
-		t.Fatalf("expected 1 action, got %d", len(res.MatchedActions))
-	}
-	if !tracer.HasEvent("rule_applicable") {
-		t.Errorf("expected tracing event rule_applicable")
-	}
-}
-
-func TestEvaluateRuleUsageLimitExhausted(t *testing.T) {
-	rule := PromotionRule{
-		ID:         "limit",
-		Name:       "Limit",
-		Status:     StatusActive,
-		Priority:   1,
-		StartDate:  "2024-01-01",
-		EndDate:    nil,
-		Conditions: Conditions{},
-		UsageLimit: ptrInt(5),
-		UsageCount: 5,
-	}
-
-	ctx := &PromotionEvalContext{Now: time.Date(2024, 2, 1, 0, 0, 0, 0, time.UTC)}
-	tracer := &testTracer{}
-	svc := NewPromotionService(tracer)
-	res := svc.EvaluateRule(rule, ctx)
-	if res.Applicable {
-		t.Fatalf("expected rule NOT applicable due to usage limit")
-	}
-	if res.FailedReason != "usage_limit_exhausted" {
-		t.Fatalf("expected failedReason usage_limit_exhausted, got %s", res.FailedReason)
-	}
-	if !tracer.HasEvent("rule_skip_usage_limit") {
-		t.Errorf("tracer missing rule_skip_usage_limit event")
-	}
-}
-
-func TestEvaluateRuleDateWindow(t *testing.T) {
-	// Start in future
-	rule := PromotionRule{
-		ID:         "date",
-		Name:       "DateWindow",
-		Status:     StatusActive,
-		Priority:   1,
-		StartDate:  "2025-01-01",
-		EndDate:    ptr("2025-01-31"),
-		Conditions: Conditions{},
-	}
-	ctx := &PromotionEvalContext{Now: time.Date(2024, 12, 15, 12, 0, 0, 0, time.UTC)}
-	tracer := &testTracer{}
-	svc := NewPromotionService(tracer)
-	res := svc.EvaluateRule(rule, ctx)
-	if res.Applicable {
-		t.Fatalf("expected rule NOT applicable (before start)")
-	}
-	if res.FailedReason != "before_start" {
-		t.Fatalf("expected failedReason before_start, got %s", res.FailedReason)
-	}
-	if !tracer.HasEvent("rule_skip_before_start") {
-		t.Errorf("missing rule_skip_before_start trace event")
-	}
-}
-
-func TestEvaluateProductCategoryIN(t *testing.T) {
-	g := makeCart(-1, []struct {
-		sku      string
-		category string
-		qty      int
-		priceInc int64
-	}{
-		{"A", "shoes", 1, 5000},
-		{"B", "bags", 1, 7000},
-	})
-
-	ctx := NewContextFromCart(g)
-	conds := Conditions{
-		BaseCondition{
-			ID:       "c_category",
-			Type:     CondProductCategory,
-			Operator: OpIn,
-			Value:    cvStrings([]string{"shoes", "hats"}),
-		},
-	}
-	rule := PromotionRule{
-		ID:         "cat-in",
-		Status:     StatusActive,
-		Priority:   10,
-		StartDate:  "2024-01-01",
-		EndDate:    nil,
-		Conditions: conds,
-		Actions: []Action{
-			{ID: "discount", Type: ActionFixedDiscount, Value: 1000},
-		},
-	}
-	tracer := &testTracer{}
-	svc := NewPromotionService(tracer)
-	res := svc.EvaluateRule(rule, ctx)
-	if !res.Applicable {
-		t.Fatalf("expected category IN rule to apply")
-	}
-	if !tracer.HasEvent("rule_applicable") {
-		t.Errorf("tracing missing rule_applicable")
-	}
-}
-
-func TestEvaluateGroupOR(t *testing.T) {
-	g := makeCart(3000, []struct {
-		sku      string
-		category string
-		qty      int
-		priceInc int64
-	}{
-		{"ONE", "x", 1, 3000},
-	})
-
-	ctx := NewContextFromCart(g)
-
-	// OR group: (cart_total >= 10000) OR (item_quantity >= 1)
-	group := ConditionGroup{
-		ID:       "grp-or",
-		Type:     "group",
-		Operator: LogicOR,
-		Conditions: Conditions{
-			BaseCondition{
-				ID:       "c_total",
-				Type:     CondCartTotal,
-				Operator: OpGreaterOrEqual,
-				Value:    cvNum(10000),
-			},
-			BaseCondition{
-				ID:       "c_qty",
-				Type:     CondItemQuantity,
-				Operator: OpGreaterOrEqual,
-				Value:    cvNum(1),
-			},
-		},
-	}
-	rule := PromotionRule{
-		ID:         "or-rule",
-		Status:     StatusActive,
-		Priority:   5,
-		StartDate:  "2024-01-01",
-		EndDate:    nil,
-		Conditions: Conditions{group},
-		Actions:    []Action{{ID: "a", Type: ActionFixedDiscount, Value: 500}},
-	}
-	tracer := &testTracer{}
-	svc := NewPromotionService(tracer)
-	res := svc.EvaluateRule(rule, ctx)
-	if !res.Applicable {
-		t.Fatalf("expected OR rule to apply (second condition true)")
-	}
-	// Ensure group pass event
-	if !tracer.HasEvent("cond_group_or_pass") {
-		t.Errorf("expected cond_group_or_pass trace event")
-	}
-}
-
-func TestEvaluateAllPriorityOrdering(t *testing.T) {
-	ctx := &PromotionEvalContext{
-		CartTotalIncVat:   20000,
-		TotalItemQuantity: 2,
-		Items: []PromotionItem{
-			{SKU: "X", Quantity: 2, Category: "general", PriceIncVat: 10000},
-		},
-		Now: time.Date(2024, 5, 10, 10, 0, 0, 0, time.UTC),
-	}
-
-	// Rule A: priority 5
-	ruleA := PromotionRule{
-		ID:         "A",
-		Status:     StatusActive,
-		Priority:   5,
-		StartDate:  "2024-01-01",
-		EndDate:    nil,
-		Conditions: Conditions{},
-		Actions: []Action{
-			{ID: "actionA", Type: ActionFixedDiscount, Value: 100},
-		},
-	}
-
-	// Rule B: priority 1
-	ruleB := PromotionRule{
-		ID:         "B",
-		Status:     StatusActive,
-		Priority:   1,
-		StartDate:  "2024-01-01",
-		EndDate:    nil,
-		Conditions: Conditions{},
-		Actions: []Action{
-			{ID: "actionB", Type: ActionFixedDiscount, Value: 200},
-		},
-	}
-
-	tracer := &testTracer{}
-	svc := NewPromotionService(tracer)
-	results, actions := svc.EvaluateAll([]PromotionRule{ruleA, ruleB}, ctx)
-	if len(results) != 2 {
-		t.Fatalf("expected 2 results, got %d", len(results))
-	}
-	if len(actions) != 2 {
-		t.Fatalf("expected 2 actions, got %d", len(actions))
-	}
-
-	// Actions should follow priority order: ruleB (1) then ruleA (5)
-	if actions[0].ID != "actionB" || actions[1].ID != "actionA" {
-		t.Fatalf("actions order invalid: %+v", actions)
-	}
-	if tracer.Count("actions_add") != 2 {
-		t.Errorf("expected 2 actions_add trace events, got %d", tracer.Count("actions_add"))
-	}
-	if !tracer.HasEvent("evaluation_complete") {
-		t.Errorf("missing evaluation_complete trace")
-	}
-}
-
-func TestDayOfWeekAndTimeOfDay(t *testing.T) {
-	// Wednesday 14:30 UTC
-	now := time.Date(2024, 6, 12, 14, 30, 0, 0, time.UTC) // 2024-06-12 is Wednesday
-	ctx := &PromotionEvalContext{
-		Now: now,
-	}
-
-	condDay := BaseCondition{
-		ID:       "dow",
-		Type:     CondDayOfWeek,
-		Operator: OpIn,
-		Value:    cvStrings([]string{"wed", "fri"}),
-	}
-	condTime := BaseCondition{
-		ID:       "tod",
-		Type:     CondTimeOfDay,
-		Operator: OpEquals, // operator is ignored for time-of-day internally
-		Value:    cvString("13:00-15:00"),
-	}
-
-	rule := PromotionRule{
-		ID:         "day-time",
-		Status:     StatusActive,
-		Priority:   1,
-		StartDate:  "2024-01-01",
-		EndDate:    nil,
-		Conditions: Conditions{condDay, condTime},
-		Actions:    []Action{{ID: "a", Type: ActionPercentageDiscount, Value: 15}},
-	}
-
-	tracer := &testTracer{}
-	svc := NewPromotionService(tracer)
-	res := svc.EvaluateRule(rule, ctx)
-	if !res.Applicable {
-		t.Fatalf("expected rule to apply for Wednesday 14:30 in window 13-15")
-	}
-}
-
-func TestDateRangeCondition(t *testing.T) {
-	now := time.Date(2024, 3, 15, 9, 0, 0, 0, time.UTC)
-	ctx := &PromotionEvalContext{Now: now}
-
-	condRange := BaseCondition{
-		ID:       "date_range",
-		Type:     CondDateRange,
-		Operator: OpEquals, // not used
-		Value:    cvStrings([]string{"2024-03-01", "2024-03-31"}),
-	}
-
-	rule := PromotionRule{
-		ID:         "range",
-		Status:     StatusActive,
-		Priority:   1,
-		StartDate:  "2024-01-01",
-		EndDate:    nil,
-		Conditions: Conditions{condRange},
-		Actions:    []Action{{ID: "a", Type: ActionFixedDiscount, Value: 500}},
-	}
-
-	tracer := &testTracer{}
-	svc := NewPromotionService(tracer)
-	res := svc.EvaluateRule(rule, ctx)
-	if !res.Applicable {
-		t.Fatalf("expected date range rule to apply for 2024-03-15")
-	}
-}
-
-// --- Utilities -------------------------------------------------------------
-
-func ptr(s string) *string { return &s }
-func ptrInt(i int) *int    { return &i }

pkg/promotions/type_test.go

@@ -1,443 +0,0 @@
-package promotions
-
-import (
-	"encoding/json"
-	"testing"
-)
-
-// sampleJSON mirrors the user's full example data (all three rules)
-var sampleJSON = []byte(`[
-  {
-    "id": "1",
-    "name": "Summer Sale 2024",
-    "description": "20% off on all summer items",
-    "status": "active",
-    "priority": 1,
-    "startDate": "2024-06-01",
-    "endDate": "2024-08-31",
-    "conditions": [
-      {
-        "id": "group1",
-        "type": "group",
-        "operator": "AND",
-        "conditions": [
-          {
-            "id": "c1",
-            "type": "product_category",
-            "operator": "in",
-            "value": ["summer", "beachwear"],
-            "label": "Product category is Summer or Beachwear"
-          },
-          {
-            "id": "c2",
-            "type": "cart_total",
-            "operator": "greater_or_equal",
-            "value": 50,
-            "label": "Cart total is at least $50"
-          }
-        ]
-      }
-    ],
-    "actions": [
-      {
-        "id": "a1",
-        "type": "percentage_discount",
-        "value": 20,
-        "label": "20% discount"
-      }
-    ],
-    "usageLimit": 1000,
-    "usageCount": 342,
-    "createdAt": "2024-05-15T10:00:00Z",
-    "updatedAt": "2024-05-20T14:30:00Z",
-    "createdBy": "admin@example.com",
-    "tags": ["seasonal", "summer"]
-  },
-  {
-    "id": "2",
-    "name": "VIP Customer Exclusive",
-    "description": "Free shipping for VIP customers",
-    "status": "active",
-    "priority": 2,
-    "startDate": "2024-01-01",
-    "endDate": null,
-    "conditions": [
-      {
-        "id": "c3",
-        "type": "customer_segment",
-        "operator": "equals",
-        "value": "vip",
-        "label": "Customer segment is VIP"
-      }
-    ],
-    "actions": [
-      {
-        "id": "a2",
-        "type": "free_shipping",
-        "value": 0,
-        "label": "Free shipping"
-      }
-    ],
-    "usageCount": 1523,
-    "createdAt": "2023-12-15T09:00:00Z",
-    "updatedAt": "2024-01-05T11:20:00Z",
-    "createdBy": "marketing@example.com",
-    "tags": ["vip", "loyalty"]
-  },
-  {
-    "id": "3",
-    "name": "Buy 2 Get 1 Free",
-    "description": "Buy 2 items, get the cheapest one free",
-    "status": "scheduled",
-    "priority": 3,
-    "startDate": "2024-12-01",
-    "endDate": "2024-12-25",
-    "conditions": [
-      {
-        "id": "c4",
-        "type": "item_quantity",
-        "operator": "greater_or_equal",
-        "value": 3,
-        "label": "Cart has at least 3 items"
-      }
-    ],
-    "actions": [
-      {
-        "id": "a3",
-        "type": "buy_x_get_y",
-        "value": 0,
-        "config": { "buy": 2, "get": 1, "discount": 100 },
-        "label": "Buy 2 Get 1 Free"
-      }
-    ],
-    "usageCount": 0,
-    "createdAt": "2024-11-01T08:00:00Z",
-    "updatedAt": "2024-11-01T08:00:00Z",
-    "createdBy": "admin@example.com",
-    "tags": ["holiday", "christmas"]
-  }
-]`)
-
-func TestDecodePromotionRulesBasic(t *testing.T) {
-	rules, err := DecodePromotionRules(sampleJSON)
-	if err != nil {
-		t.Fatalf("DecodePromotionRules failed: %v", err)
-	}
-	if len(rules) != 3 {
-		t.Fatalf("expected 3 rules, got %d", len(rules))
-	}
-
-	// Rule 1 checks
-	r1 := rules[0]
-	if r1.ID != "1" {
-		t.Errorf("rule[0].ID = %s, want 1", r1.ID)
-	}
-	if r1.Status != StatusActive {
-		t.Errorf("rule[0].Status = %s, want %s", r1.Status, StatusActive)
-	}
-	if r1.EndDate == nil || *r1.EndDate != "2024-08-31" {
-		t.Errorf("rule[0].EndDate = %v, want 2024-08-31", r1.EndDate)
-	}
-	if r1.UsageLimit == nil || *r1.UsageLimit != 1000 {
-		t.Errorf("rule[0].UsageLimit = %v, want 1000", r1.UsageLimit)
-	}
-
-	// Rule 2 checks
-	r2 := rules[1]
-	if r2.ID != "2" {
-		t.Errorf("rule[1].ID = %s, want 2", r2.ID)
-	}
-	if r2.EndDate != nil {
-		t.Errorf("rule[1].EndDate should be nil (from null), got %v", *r2.EndDate)
-	}
-	if r2.UsageLimit != nil {
-		t.Errorf("rule[1].UsageLimit should be nil (missing), got %v", *r2.UsageLimit)
-	}
-}
-
-func TestConditionDecoding(t *testing.T) {
-	rules, err := DecodePromotionRules(sampleJSON)
-	if err != nil {
-		t.Fatalf("DecodePromotionRules failed: %v", err)
-	}
-	r1 := rules[0]
-	if len(r1.Conditions) != 1 {
-		t.Fatalf("expected 1 top-level condition group, got %d", len(r1.Conditions))
-	}
-
-	grp, ok := r1.Conditions[0].(ConditionGroup)
-	if !ok {
-		t.Fatalf("top-level condition is not a group, type=%T", r1.Conditions[0])
-	}
-	if grp.Operator != LogicAND {
-		t.Errorf("group operator = %s, want AND", grp.Operator)
-	}
-
-	if len(grp.Conditions) != 2 {
-		t.Fatalf("expected 2 child conditions, got %d", len(grp.Conditions))
-	}
-
-	// First child: product_category condition with slice value
-	c0, ok := grp.Conditions[0].(BaseCondition)
-	if !ok {
-		t.Fatalf("first child not BaseCondition, got %T", grp.Conditions[0])
-	}
-	if c0.Type != CondProductCategory {
-		t.Errorf("first child type = %s, want %s", c0.Type, CondProductCategory)
-	}
-	if c0.Operator != OpIn {
-		t.Errorf("first child operator = %s, want %s", c0.Operator, OpIn)
-	}
-	if arr, ok := c0.Value.AsStringSlice(); !ok || len(arr) != 2 || arr[0] != "summer" {
-		t.Errorf("expected string slice value [summer,...], got %v", arr)
-	}
-
-	// Second child: cart_total numeric
-	c1, ok := grp.Conditions[1].(BaseCondition)
-	if !ok {
-		t.Fatalf("second child not BaseCondition, got %T", grp.Conditions[1])
-	}
-	if c1.Type != CondCartTotal {
-		t.Errorf("second child type = %s, want %s", c1.Type, CondCartTotal)
-	}
-	if val, ok := c1.Value.AsFloat64(); !ok || val != 50 {
-		t.Errorf("expected numeric value 50, got %v (ok=%v)", val, ok)
-	}
-}
-
-func TestConditionValueHelpers(t *testing.T) {
-	tests := []struct {
-		name    string
-		jsonVal string
-		wantStr string
-		wantNum *float64
-		wantSS  []string
-		wantFS  []float64
-	}{
-		{
-			name:    "string value",
-			jsonVal: `"vip"`,
-			wantStr: "vip",
-		},
-		{
-			name:    "number value",
-			jsonVal: `42`,
-			wantNum: floatPtr(42),
-		},
-		{
-			name:    "string slice",
-			jsonVal: `["a","b"]`,
-			wantSS:  []string{"a", "b"},
-		},
-		{
-			name:    "number slice int",
-			jsonVal: `[1,2,3]`,
-			wantFS:  []float64{1, 2, 3},
-		},
-		{
-			name:    "number slice float",
-			jsonVal: `[1.5,2.25]`,
-			wantFS:  []float64{1.5, 2.25},
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			var cv ConditionValue
-			if err := json.Unmarshal([]byte(tc.jsonVal), &cv); err != nil {
-				t.Fatalf("unmarshal value failed: %v", err)
-			}
-			if tc.wantStr != "" {
-				if got, ok := cv.AsString(); !ok || got != tc.wantStr {
-					t.Errorf("AsString got=%q ok=%v want=%q", got, ok, tc.wantStr)
-				}
-			}
-			if tc.wantNum != nil {
-				if got, ok := cv.AsFloat64(); !ok || got != *tc.wantNum {
-					t.Errorf("AsFloat64 got=%v ok=%v want=%v", got, ok, *tc.wantNum)
-				}
-			}
-			if tc.wantSS != nil {
-				if got, ok := cv.AsStringSlice(); !ok || len(got) != len(tc.wantSS) || got[0] != tc.wantSS[0] {
-					t.Errorf("AsStringSlice got=%v ok=%v want=%v", got, ok, tc.wantSS)
-				}
-			}
-			if tc.wantFS != nil {
-				if got, ok := cv.AsFloat64Slice(); !ok || len(got) != len(tc.wantFS) {
-					t.Errorf("AsFloat64Slice got=%v ok=%v want=%v", got, ok, tc.wantFS)
-				} else {
-					for i := range got {
-						if got[i] != tc.wantFS[i] {
-							t.Errorf("AsFloat64Slice[%d]=%v want=%v", i, got[i], tc.wantFS[i])
-						}
-					}
-				}
-			}
-		})
-	}
-}
-
-func TestWalkConditionsTraversal(t *testing.T) {
-	rules, err := DecodePromotionRules(sampleJSON)
-	if err != nil {
-		t.Fatalf("DecodePromotionRules failed: %v", err)
-	}
-	visited := 0
-	WalkConditions(rules[0].Conditions, func(c Condition) bool {
-		visited++
-		return true
-	})
-	// group + 2 children
-	if visited != 3 {
-		t.Errorf("expected 3 visited conditions, got %d", visited)
-	}
-}
-
-func TestActionBundleConfigParsing(t *testing.T) {
-	jsonData := []byte(`[
-	  {
-	    "id": "bundle-1",
-	    "name": "Bundle Deal",
-	    "description": "Fixed price bundle",
-	    "status": "active",
-	    "priority": 1,
-	    "startDate": "2024-01-01",
-	    "endDate": null,
-	    "conditions": [],
-	    "actions": [
-	      {
-	        "id": "act-bundle",
-	        "type": "bundle_discount",
-	        "value": 0,
-	        "bundleConfig": {
-	          "containers": [
-	            {
-	              "id": "cont1",
-	              "name": "Shoes",
-	              "quantity": 2,
-	              "selectionType": "any",
-	              "qualifyingRules": {
-	                "type": "category",
-	                "value": "shoes"
-	              }
-	            },
-	            {
-	              "id": "cont2",
-	              "name": "Socks",
-	              "quantity": 3,
-	              "selectionType": "specific",
-	              "qualifyingRules": {
-	                "type": "product_ids",
-	                "value": ["sock-1", "sock-2"]
-	              },
-	              "allowedProducts": ["sock-1","sock-2"]
-	            }
-	          ],
-	          "pricing": {
-	            "type": "fixed_price",
-	            "value": 49.99
-	          },
-	          "requireAllContainers": true
-	        },
-	        "config": { "note": "Bundle applies to footwear + socks" }
-	      }
-	    ],
-	    "usageCount": 0,
-	    "createdAt": "2024-01-01T00:00:00Z",
-	    "updatedAt": "2024-01-01T00:00:00Z",
-	    "createdBy": "bundle@example.com",
-	    "tags": ["bundle","footwear"]
-	  }
-	]`)
-	rules, err := DecodePromotionRules(jsonData)
-	if err != nil {
-		t.Fatalf("decode failed: %v", err)
-	}
-	if len(rules) != 1 {
-		t.Fatalf("expected 1 rule, got %d", len(rules))
-	}
-	if len(rules[0].Actions) != 1 {
-		t.Fatalf("expected 1 action, got %d", len(rules[0].Actions))
-	}
-	act := rules[0].Actions[0]
-	if act.Type != ActionBundleDiscount {
-		t.Fatalf("action type = %s, want %s", act.Type, ActionBundleDiscount)
-	}
-	if act.BundleConfig == nil {
-		t.Fatalf("bundleConfig nil")
-	}
-	if act.BundleConfig.Pricing.Type != "fixed_price" {
-		t.Errorf("pricing.type = %s, want fixed_price", act.BundleConfig.Pricing.Type)
-	}
-	if act.BundleConfig.Pricing.Value != 49.99 {
-		t.Errorf("pricing.value = %v, want 49.99", act.BundleConfig.Pricing.Value)
-	}
-	if !act.BundleConfig.RequireAllContainers {
-		t.Errorf("RequireAllContainers expected true")
-	}
-	if len(act.BundleConfig.Containers) != 2 {
-		t.Fatalf("expected 2 containers, got %d", len(act.BundleConfig.Containers))
-	}
-	if act.Config == nil || act.Config["note"] != "Bundle applies to footwear + socks" {
-		t.Errorf("config.note mismatch: %v", act.Config)
-	}
-}
-
-func TestConditionValueInvalidTypes(t *testing.T) {
-	cases := []struct {
-		name string
-		raw  string
-	}{
-		{"object", `{}`},
-		{"booleanTrue", `true`},
-		{"booleanFalse", `false`},
-		{"null", `null`},
-	}
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			var cv ConditionValue
-			if err := json.Unmarshal([]byte(tc.raw), &cv); err != nil {
-				t.Fatalf("unmarshal failed: %v", err)
-			}
-			if s, ok := cv.AsString(); ok {
-				t.Errorf("AsString unexpectedly succeeded (%q) for %s", s, tc.name)
-			}
-			if n, ok := cv.AsFloat64(); ok {
-				t.Errorf("AsFloat64 unexpectedly succeeded (%v) for %s", n, tc.name)
-			}
-			if ss, ok := cv.AsStringSlice(); ok {
-				t.Errorf("AsStringSlice unexpectedly succeeded (%v) for %s", ss, tc.name)
-			}
-			if fs, ok := cv.AsFloat64Slice(); ok {
-				t.Errorf("AsFloat64Slice unexpectedly succeeded (%v) for %s", fs, tc.name)
-			}
-		})
-	}
-}
-
-func TestPromotionRuleRoundTrip(t *testing.T) {
-	orig, err := DecodePromotionRules(sampleJSON)
-	if err != nil {
-		t.Fatalf("initial decode failed: %v", err)
-	}
-	data, err := json.Marshal(orig)
-	if err != nil {
-		t.Fatalf("marshal failed: %v", err)
-	}
-	round, err := DecodePromotionRules(data)
-	if err != nil {
-		t.Fatalf("round-trip decode failed: %v", err)
-	}
-	if len(orig) != len(round) {
-		t.Fatalf("rule count mismatch: orig=%d round=%d", len(orig), len(round))
-	}
-	// spot-check first rule
-	if orig[0].Name != round[0].Name {
-		t.Errorf("first rule name mismatch: %s vs %s", orig[0].Name, round[0].Name)
-	}
-	if len(orig[0].Conditions) != len(round[0].Conditions) {
-		t.Errorf("first rule condition count mismatch: %d vs %d", len(orig[0].Conditions), len(round[0].Conditions))
-	}
-}
-
-func floatPtr(f float64) *float64 { return &f }

pkg/promotions/types.go

@@ -1,413 +0,0 @@
-package promotions
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"os"
-	"strconv"
-	"strings"
-)
-
-// -----------------------------
-// Enum-like string types
-// -----------------------------
-
-type ConditionOperator string
-
-const (
-	OpEquals         ConditionOperator = "="
-	OpNotEquals      ConditionOperator = "!="
-	OpGreaterThan    ConditionOperator = ">"
-	OpLessThan       ConditionOperator = "<"
-	OpGreaterOrEqual ConditionOperator = ">="
-	OpLessOrEqual    ConditionOperator = "<="
-	OpContains       ConditionOperator = "contains"
-	OpNotContains    ConditionOperator = "not_contains"
-	OpIn             ConditionOperator = "in"
-	OpNotIn          ConditionOperator = "not_in"
-)
-
-type ConditionType string
-
-const (
-	CondCartTotal        ConditionType = "cart_total"
-	CondItemQuantity     ConditionType = "item_quantity"
-	CondCustomerSegment  ConditionType = "customer_segment"
-	CondProductCategory  ConditionType = "product_category"
-	CondProductID        ConditionType = "product_id"
-	CondCustomerLifetime ConditionType = "customer_lifetime_value"
-	CondOrderCount       ConditionType = "order_count"
-	CondDateRange        ConditionType = "date_range"
-	CondDayOfWeek        ConditionType = "day_of_week"
-	CondTimeOfDay        ConditionType = "time_of_day"
-	CondGroup            ConditionType = "group" // synthetic value for groups
-)
-
-type ActionType string
-
-const (
-	ActionPercentageDiscount ActionType = "percentage_discount"
-	ActionFixedDiscount      ActionType = "fixed_discount"
-	ActionFreeShipping       ActionType = "free_shipping"
-	ActionBuyXGetY           ActionType = "buy_x_get_y"
-	ActionTieredDiscount     ActionType = "tiered_discount"
-	ActionBundleDiscount     ActionType = "bundle_discount"
-)
-
-type LogicOperator string
-
-const (
-	LogicAND LogicOperator = "&&"
-	LogicOR  LogicOperator = "||"
-)
-
-type PromotionStatus string
-
-const (
-	StatusActive    PromotionStatus = "active"
-	StatusInactive  PromotionStatus = "inactive"
-	StatusScheduled PromotionStatus = "scheduled"
-	StatusExpired   PromotionStatus = "expired"
-)
-
-// -----------------------------
-// Condition Value (union)
-// -----------------------------
-//
-// Represents: string | number | []string | []number
-// We store raw JSON and lazily interpret.
-
-type ConditionValue struct {
-	Raw json.RawMessage
-}
-
-func (cv *ConditionValue) UnmarshalJSON(b []byte) error {
-	if len(b) == 0 {
-		return errors.New("empty ConditionValue")
-	}
-	// Just store raw; interpretation happens via helpers.
-	cv.Raw = append(cv.Raw[0:0], b...)
-	return nil
-}
-
-// Helpers to interpret value:
-func (cv ConditionValue) AsString() (string, bool) {
-	// Treat explicit JSON null as invalid
-	if string(cv.Raw) == "null" {
-		return "", false
-	}
-	var s string
-	if err := json.Unmarshal(cv.Raw, &s); err == nil {
-		return s, true
-	}
-	return "", false
-}
-
-func (cv ConditionValue) AsFloat64() (float64, bool) {
-	if string(cv.Raw) == "null" {
-		return 0, false
-	}
-	var f float64
-	if err := json.Unmarshal(cv.Raw, &f); err == nil {
-		return f, true
-	}
-	// Attempt integer decode into float64
-	var i int64
-	if err := json.Unmarshal(cv.Raw, &i); err == nil {
-		return float64(i), true
-	}
-	return 0, false
-}
-
-func (cv ConditionValue) AsStringSlice() ([]string, bool) {
-	if string(cv.Raw) == "null" {
-		return nil, false
-	}
-	var arr []string
-	if err := json.Unmarshal(cv.Raw, &arr); err == nil {
-		return arr, true
-	}
-	return nil, false
-}
-
-func (cv ConditionValue) AsFloat64Slice() ([]float64, bool) {
-	if string(cv.Raw) == "null" {
-		return nil, false
-	}
-	var arrNum []float64
-	if err := json.Unmarshal(cv.Raw, &arrNum); err == nil {
-		return arrNum, true
-	}
-	// Try []int -> []float64
-	var arrInt []int64
-	if err := json.Unmarshal(cv.Raw, &arrInt); err == nil {
-		out := make([]float64, len(arrInt))
-		for i, v := range arrInt {
-			out[i] = float64(v)
-		}
-		return out, true
-	}
-	return nil, false
-}
-
-func (cv ConditionValue) String() string {
-	if s, ok := cv.AsString(); ok {
-		return s
-	}
-	if f, ok := cv.AsFloat64(); ok {
-		return strconv.FormatFloat(f, 'f', -1, 64)
-	}
-	if ss, ok := cv.AsStringSlice(); ok {
-		return fmt.Sprintf("%v", ss)
-	}
-	if fs, ok := cv.AsFloat64Slice(); ok {
-		return fmt.Sprintf("%v", fs)
-	}
-	return string(cv.Raw)
-}
-
-// -----------------------------
-// BaseCondition
-// -----------------------------
-
-type BaseCondition struct {
-	ID       string            `json:"id"`
-	Type     ConditionType     `json:"type"`
-	Operator ConditionOperator `json:"operator"`
-	Value    ConditionValue    `json:"value"`
-	Label    *string           `json:"label,omitempty"`
-}
-
-func (b BaseCondition) IsGroup() bool { return false }
-
-// -----------------------------
-// ConditionGroup
-// -----------------------------
-
-type ConditionGroup struct {
-	ID         string        `json:"id"`
-	Type       string        `json:"type"` // always "group"
-	Operator   LogicOperator `json:"operator"`
-	Conditions Conditions    `json:"conditions"`
-}
-
-// Custom unmarshaller ensures nested polymorphic conditions are decoded
-// using the Conditions type (which applies the raw element discriminator).
-func (g *ConditionGroup) UnmarshalJSON(b []byte) error {
-	type alias struct {
-		ID         string          `json:"id"`
-		Type       string          `json:"type"`
-		Operator   LogicOperator   `json:"operator"`
-		Conditions json.RawMessage `json:"conditions"`
-	}
-	var a alias
-	if err := json.Unmarshal(b, &a); err != nil {
-		return err
-	}
-	// Basic validation
-	if a.Type != "group" {
-		return fmt.Errorf("ConditionGroup expected type 'group', got %q", a.Type)
-	}
-
-	var conds Conditions
-	if len(a.Conditions) > 0 {
-		if err := json.Unmarshal(a.Conditions, &conds); err != nil {
-			return err
-		}
-	}
-
-	g.ID = a.ID
-	g.Type = a.Type
-	switch strings.ToLower(string(a.Operator)) {
-	case "and":
-		g.Operator = LogicAND
-	case "or":
-		g.Operator = LogicOR
-	default:
-		g.Operator = a.Operator
-	}
-	g.Conditions = conds
-	return nil
-}
-
-func (g ConditionGroup) IsGroup() bool { return true }
-
-// -----------------------------
-// Condition interface + slice
-// -----------------------------
-
-type Condition interface {
-	IsGroup() bool
-}
-
-// Internal wrapper to help decode each element.
-type rawCond struct {
-	Type string `json:"type"`
-}
-
-// Custom unmarshaler for a Condition slice
-type Conditions []Condition
-
-func (cs *Conditions) UnmarshalJSON(b []byte) error {
-	var rawList []json.RawMessage
-	if err := json.Unmarshal(b, &rawList); err != nil {
-		return err
-	}
-	out := make([]Condition, 0, len(rawList))
-	for _, elem := range rawList {
-		var hdr rawCond
-		if err := json.Unmarshal(elem, &hdr); err != nil {
-			return err
-		}
-		if hdr.Type == "group" {
-			var grp ConditionGroup
-			if err := json.Unmarshal(elem, &grp); err != nil {
-				return err
-			}
-			// Recursively decode grp.Conditions (already handled because field type is []Condition)
-			out = append(out, grp)
-		} else {
-			var bc BaseCondition
-			if err := json.Unmarshal(elem, &bc); err != nil {
-				return err
-			}
-			out = append(out, bc)
-		}
-	}
-	*cs = out
-	return nil
-}
-
-// -----------------------------
-// Bundle Structures
-// -----------------------------
-
-type BundleQualifyingRules struct {
-	Type  string      `json:"type"`  // "category" | "product_ids" | "tag" | "all"
-	Value interface{} `json:"value"` // string or []string
-}
-
-type BundleContainer struct {
-	ID              string                `json:"id"`
-	Name            string                `json:"name"`
-	Quantity        int                   `json:"quantity"`
-	SelectionType   string                `json:"selectionType"` // "any" | "specific"
-	QualifyingRules BundleQualifyingRules `json:"qualifyingRules"`
-	AllowedProducts []string              `json:"allowedProducts,omitempty"`
-}
-
-type BundlePricing struct {
-	Type  string  `json:"type"` // "fixed_price" | "percentage_discount" | "fixed_discount"
-	Value float64 `json:"value"`
-}
-
-type BundleConfig struct {
-	Containers           []BundleContainer `json:"containers"`
-	Pricing              BundlePricing     `json:"pricing"`
-	RequireAllContainers bool              `json:"requireAllContainers"`
-}
-
-// -----------------------------
-// Action
-// -----------------------------
-
-type Action struct {
-	ID           string                 `json:"id"`
-	Type         ActionType             `json:"type"`
-	Value        interface{}            `json:"value"` // number or string
-	Config       map[string]interface{} `json:"config,omitempty"`
-	BundleConfig *BundleConfig          `json:"bundleConfig,omitempty"`
-	Label        *string                `json:"label,omitempty"`
-}
-
-// -----------------------------
-// Promotion Rule
-// -----------------------------
-
-type PromotionRule struct {
-	ID          string          `json:"id"`
-	Name        string          `json:"name"`
-	Description string          `json:"description"`
-	Status      PromotionStatus `json:"status"`
-	Priority    int             `json:"priority"`
-	StartDate   string          `json:"startDate"`
-	EndDate     *string         `json:"endDate"` // null -> nil
-	Conditions  Conditions      `json:"conditions"`
-	Actions     []Action        `json:"actions"`
-	UsageLimit  *int            `json:"usageLimit,omitempty"`
-	UsageCount  int             `json:"usageCount"`
-	CreatedAt   string          `json:"createdAt"`
-	UpdatedAt   string          `json:"updatedAt"`
-	CreatedBy   string          `json:"createdBy"`
-	Tags        []string        `json:"tags"`
-}
-
-// -----------------------------
-// Promotion Stats
-// -----------------------------
-
-type PromotionStats struct {
-	TotalPromotions  int     `json:"totalPromotions"`
-	ActivePromotions int     `json:"activePromotions"`
-	TotalRevenue     float64 `json:"totalRevenue"`
-	TotalOrders      int     `json:"totalOrders"`
-	AverageDiscount  float64 `json:"averageDiscount"`
-}
-
-// -----------------------------
-// Utility: Decode array of rules
-// -----------------------------
-
-func DecodePromotionRules(data []byte) ([]PromotionRule, error) {
-	var rules []PromotionRule
-	if err := json.Unmarshal(data, &rules); err != nil {
-		return nil, err
-	}
-	return rules, nil
-}
-
-// Example helper to inspect conditions programmatically.
-func WalkConditions(conds []Condition, fn func(c Condition) bool) {
-	for _, c := range conds {
-		if !fn(c) {
-			return
-		}
-		if grp, ok := c.(ConditionGroup); ok {
-			WalkConditions(grp.Conditions, fn)
-		}
-	}
-}
-
-type PromotionState struct {
-	Promotions []PromotionRule `json:"promotions"`
-}
-
-type StateFile struct {
-	State   PromotionState `json:"state"`
-	Version int            `json:"version"`
-}
-
-func (sf *StateFile) GetPromotion(id string) (*PromotionRule, bool) {
-	for _, v := range sf.State.Promotions {
-		if v.ID == id {
-			return &v, true
-		}
-	}
-	return nil, false
-}
-
-func LoadStateFile(fileName string) (*StateFile, error) {
-	f, err := os.Open(fileName)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-	dec := json.NewDecoder(f)
-	sf := &StateFile{}
-	err = dec.Decode(sf)
-	if err != nil {
-		return nil, err
-	}
-	return sf, nil
-}

pkg/proxy/remotehost.go

@@ -10,9 +10,6 @@ import (
 	"time"
 
 	messages "git.tornberg.me/go-cart-actor/pkg/messages"
-	"go.opentelemetry.io/contrib/bridges/otelslog"
-	"go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/attribute"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"
 )
@@ -29,14 +26,6 @@ type RemoteHost struct {
 	missedPings   int
 }
 
-const name = "proxy"
-
-var (
-	tracer = otel.Tracer(name)
-	meter  = otel.Meter(name)
-	logger = otelslog.NewLogger(name)
-)
-
 func NewRemoteHost(host string) (*RemoteHost, error) {
 
 	target := fmt.Sprintf("%s:1337", host)
@@ -60,7 +49,7 @@ func NewRemoteHost(host string) (*RemoteHost, error) {
 
 	return &RemoteHost{
 		host:          host,
-		httpBase:      fmt.Sprintf("http://%s:8080", host),
+		httpBase:      fmt.Sprintf("http://%s:8080/cart", host),
 		conn:          conn,
 		transport:     transport,
 		client:        client,
@@ -157,20 +146,8 @@ func (h *RemoteHost) AnnounceExpiry(uids []uint64) {
 func (h *RemoteHost) Proxy(id uint64, w http.ResponseWriter, r *http.Request) (bool, error) {
 	target := fmt.Sprintf("%s%s", h.httpBase, r.URL.RequestURI())
 
-	ctx, span := tracer.Start(r.Context(), "remote_proxy")
-	defer span.End()
-	span.SetAttributes(
-		attribute.String("component", "proxy"),
-		attribute.String("cartid", fmt.Sprintf("%d", id)),
-		attribute.String("host", h.host),
-		attribute.String("method", r.Method),
-		attribute.String("target", target),
-	)
-	logger.InfoContext(ctx, "proxying request", "cartid", id, "host", h.host, "method", r.Method)
-
-	req, err := http.NewRequestWithContext(ctx, r.Method, target, r.Body)
+	req, err := http.NewRequestWithContext(r.Context(), r.Method, target, r.Body)
 	if err != nil {
-		span.RecordError(err)
 		http.Error(w, "proxy build error", http.StatusBadGateway)
 		return false, err
 	}
@@ -184,27 +161,25 @@ func (h *RemoteHost) Proxy(id uint64, w http.ResponseWriter, r *http.Request) (b
 	}
 	res, err := h.client.Do(req)
 	if err != nil {
-		span.RecordError(err)
 		http.Error(w, "proxy request error", http.StatusBadGateway)
 		return false, err
 	}
 	defer res.Body.Close()
-	span.SetAttributes(attribute.Int("status_code", res.StatusCode))
 	for k, v := range res.Header {
 		for _, vv := range v {
 			w.Header().Add(k, vv)
 		}
 	}
 	w.Header().Set("X-Cart-Owner-Routed", "true")
-
-	w.WriteHeader(res.StatusCode)
-	_, copyErr := io.Copy(w, res.Body)
-	if copyErr != nil {
-		span.RecordError(copyErr)
-		return true, copyErr
+	if res.StatusCode >= 200 && res.StatusCode <= 299 {
+		w.WriteHeader(res.StatusCode)
+		_, copyErr := io.Copy(w, res.Body)
+		if copyErr != nil {
+			return true, copyErr
+		}
+		return true, nil
 	}
-	return true, nil
-
+	return false, fmt.Errorf("proxy response status %d", res.StatusCode)
 }
 
 func (r *RemoteHost) IsHealthy() bool {

pkg/voucher/parser.go

@@ -3,7 +3,6 @@ package voucher
 import (
 	"errors"
 	"fmt"
-	"slices"
 	"strconv"
 	"strings"
 	"unicode"
@@ -138,7 +137,12 @@ func (rs *RuleSet) Applies(ctx EvalContext) bool {
 
 // anyItem returns true if predicate matches any item.
 func anyItem(items []Item, pred func(Item) bool) bool {
-	return slices.ContainsFunc(items, pred)
+	for _, it := range items {
+		if pred(it) {
+			return true
+		}
+	}
+	return false
 }
 
 // ParseRules parses a rule expression into a RuleSet.

pkg/voucher/parser_test.go

@@ -28,32 +28,6 @@ func TestParseRules_SimpleSku(t *testing.T) {
 	}
 }
 
-func TestRuleCartTotal(t *testing.T) {
-	rs, err := ParseRules("min_total>=500000")
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if len(rs.Conditions) != 1 {
-		t.Fatalf("expected 1 condition got %d", len(rs.Conditions))
-	}
-	c := rs.Conditions[0]
-	if c.Kind != RuleMinTotal {
-		t.Fatalf("expected kind cart total got %s", c.Kind)
-	}
-	ctx := EvalContext{
-		Items: []Item{
-			Item{
-				Sku: "123",
-			},
-		},
-		CartTotalInc: 400000,
-	}
-	applied := rs.Applies(ctx)
-	if applied {
-		t.Fatalf("expected")
-	}
-}
-
 func TestParseRules_CategoryAndSkuMixedSeparators(t *testing.T) {
 	rs, err := ParseRules("  category=Shoes|Bags ; sku= A | B , min_total>=1000\nmin_item_price>=500")
 	if err != nil {

pkg/voucher/service.go

@@ -1,10 +1,7 @@
 package voucher
 
 import (
-	"encoding/json"
 	"errors"
-	"fmt"
-	"os"
 
 	"git.tornberg.me/go-cart-actor/pkg/messages"
 )
@@ -15,14 +12,16 @@ type Rule struct {
 }
 
 type Voucher struct {
-	Code        string `json:"code"`
-	Value       int64  `json:"value"`
-	Rules       string `json:"rules"`
-	Description string `json:"description,omitempty"`
+	Code     string `json:"code"`
+	Value    int64  `json:"discount"`
+	TaxValue int64  `json:"taxValue"`
+	TaxRate  int    `json:"taxRate"`
+	rules    []Rule `json:"rules"`
 }
 
 type Service struct {
 	// Add fields here
+
 }
 
 var ErrInvalidCode = errors.New("invalid vouchercode")
@@ -31,54 +30,10 @@ func (s *Service) GetVoucher(code string) (*messages.AddVoucher, error) {
 	if code == "" {
 		return nil, ErrInvalidCode
 	}
-	sf, err := LoadStateFile("data/vouchers.json")
-	if err != nil {
-		return nil, err
-	}
-	v, ok := sf.GetVoucher(code)
-	if !ok {
-		return nil, fmt.Errorf("no voucher found for code: %s", code)
-	}
-
+	value := int64(250_00)
 	return &messages.AddVoucher{
-		Code:        code,
-		Value:       v.Value,
-		Description: v.Description,
-		VoucherRules: []string{
-			v.Rules,
-		},
+		Code:         code,
+		Value:        value,
+		VoucherRules: make([]*messages.VoucherRule, 0),
 	}, nil
 }
-
-type State struct {
-	Vouchers []Voucher `json:"vouchers"`
-}
-
-type StateFile struct {
-	State   State `json:"state"`
-	Version int   `json:"version"`
-}
-
-func (sf *StateFile) GetVoucher(code string) (*Voucher, bool) {
-	for _, v := range sf.State.Vouchers {
-		if v.Code == code {
-			return &v, true
-		}
-	}
-	return nil, false
-}
-
-func LoadStateFile(fileName string) (*StateFile, error) {
-	f, err := os.Open(fileName)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-	dec := json.NewDecoder(f)
-	sf := &StateFile{}
-	err = dec.Decode(sf)
-	if err != nil {
-		return nil, err
-	}
-	return sf, nil
-}

proto/messages.proto

@@ -2,152 +2,115 @@ syntax = "proto3";
 package messages;
 option go_package = "git.tornberg.me/go-cart-actor/proto;messages";
 
-import "google/protobuf/any.proto";
+message ClearCartRequest {
 
-message ClearCartRequest {}
-
-message AddItem {
-  uint32 item_id = 1;
-  int32 quantity = 2;
-  int64 price = 3;
-  int64 orgPrice = 9;
-  string sku = 4;
-  string name = 5;
-  string image = 6;
-  int32 stock = 7;
-  int32 tax = 8;
-  string brand = 13;
-  string category = 14;
-  string category2 = 15;
-  string category3 = 16;
-  string category4 = 17;
-  string category5 = 18;
-  string disclaimer = 10;
-  string articleType = 11;
-  string sellerId = 19;
-  string sellerName = 20;
-  string country = 21;
-  string saleStatus = 24;
-  optional string outlet = 12;
-  optional string storeId = 22;
-  optional uint32 parentId = 23;
-  string cgm = 25;
 }
 
-message RemoveItem { uint32 Id = 1; }
+message AddItem {
+	uint32 item_id = 1;
+	int32 quantity = 2;
+	int64 price = 3;
+	int64 orgPrice = 9;
+	string sku = 4;
+	string name = 5;
+	string image = 6;
+	int32 stock = 7;
+	int32 tax = 8;
+	string brand = 13;
+	string category = 14;
+	string category2 = 15;
+	string category3 = 16;
+	string category4 = 17;
+	string category5 = 18;
+	string disclaimer = 10;
+	string articleType = 11;
+	string sellerId = 19;
+	string sellerName = 20;
+	string country = 21;
+	optional string outlet = 12;
+	optional string storeId = 22;
+	optional uint32 parentId = 23;
+}
+
+message RemoveItem {
+	uint32 Id = 1;
+}
 
 message ChangeQuantity {
-  uint32 Id = 1;
-  int32 quantity = 2;
+    uint32 Id = 1;
+	int32 quantity = 2;
 }
 
 message SetDelivery {
-  string provider = 1;
-  repeated uint32 items = 2;
-  optional PickupPoint pickupPoint = 3;
-  string country = 4;
-  string zip = 5;
-  optional string address = 6;
-  optional string city = 7;
+	string provider = 1;
+	repeated uint32 items = 2;
+	optional PickupPoint pickupPoint = 3;
+	string country = 4;
+	string zip = 5;
+	optional string address = 6;
+	optional string city = 7;
 }
 
 message SetPickupPoint {
-  uint32 deliveryId = 1;
-  string id = 2;
-  optional string name = 3;
-  optional string address = 4;
-  optional string city = 5;
-  optional string zip = 6;
-  optional string country = 7;
+	uint32 deliveryId = 1;
+	string id = 2;
+	optional string name = 3;
+	optional string address = 4;
+	optional string city = 5;
+	optional string zip = 6;
+	optional string country = 7;
 }
 
 message PickupPoint {
-  string id = 1;
-  optional string name = 2;
-  optional string address = 3;
-  optional string city = 4;
-  optional string zip = 5;
-  optional string country = 6;
+	string id = 1;
+	optional string name = 2;
+	optional string address = 3;
+	optional string city = 4;
+	optional string zip = 5;
+	optional string country = 6;
 }
 
-message RemoveDelivery { uint32 id = 1; }
-
-message SetUserId {
-  string userId = 1;
-}
-
-message LineItemMarking {
-  uint32 id = 1;
-  uint32 type = 2;
-  string marking = 3;
-}
-
-message RemoveLineItemMarking {
-  uint32 id = 1;
-}
-
-message SubscriptionAdded {
-    uint32 itemId = 1;
-    string detailsId = 3;
-    string orderReference = 4;
-}
-
-message PaymentDeclined {
-
-}
-
-message ConfirmationViewed {
-
+message RemoveDelivery {
+	uint32 id = 1;
 }
 
 message CreateCheckoutOrder {
-  string terms = 1;
-  string checkout = 2;
-  string confirmation = 3;
-  string push = 4;
-  string validation = 5;
-  string country = 6;
+	string terms = 1;
+	string checkout = 2;
+	string confirmation = 3;
+	string push = 4;
+	string validation = 5;
+	string country = 6;
 }
 
 message OrderCreated {
-  string orderId = 1;
-  string status = 2;
+	string orderId = 1;
+	string status = 2;
 }
 
 message Noop {
-  // Intentionally empty - used for ownership acquisition or health pings
+	// Intentionally empty - used for ownership acquisition or health pings
 }
 
 message InitializeCheckout {
-  string orderId = 1;
-  string status = 2;
-  bool paymentInProgress = 3;
+	string orderId = 1;
+	string status = 2;
+	bool paymentInProgress = 3;
 }
 
-message InventoryReserved  {
-    string id = 1;
-    string status = 2;
-    optional string message = 3;
+message VoucherRule {
+	string type = 2;
+	string description = 3;
+	string condition = 4;
+	string action = 5;
 }
 
 message AddVoucher {
-  string code = 1;
-  int64 value = 2;
-  repeated string voucherRules = 3;
-  string description = 4;
+    string code = 1;
+    int64 value = 2;
+    repeated VoucherRule voucherRules = 3;
 }
 
-message RemoveVoucher { uint32 id = 1; }
-
-message UpsertSubscriptionDetails {
-  optional string id = 1;
-  string offeringCode = 2;
-  string signingType = 3;
-  google.protobuf.Any data = 4;
-}
-
-message PreConditionFailed {
-  string operation = 1;
-  string error = 2;
-  google.protobuf.Any input = 3;
+message RemoveVoucher {
+    uint32 id = 1;
 }