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

pkg/cart/cart-grain.go

@@ -92,10 +92,12 @@ type CartGrain struct {
 }
 
 type Voucher struct {
-	Code  string                  `json:"code"`
-	Rules []*messages.VoucherRule `json:"rules"`
-	Id    uint32                  `json:"id"`
-	Value int64                   `json:"value"`
+	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) {
@@ -127,8 +129,8 @@ func (v *Voucher) AppliesTo(cart *CartGrain) ([]*CartItem, bool) {
 	}
 
 	// All voucher rules must pass (logical AND)
-	for _, rule := range v.Rules {
-		expr := rule.GetCondition()
+	for _, expr := range v.Rules {
+
 		if expr == "" {
 			// Empty condition treated as pass (acts like a comment / placeholder)
 			continue
@@ -249,31 +251,36 @@ func (c *CartGrain) UpdateTotals() {
 	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)
+			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 {
-		if _, ok := voucher.AppliesTo(c); ok {
+		_, 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

@@ -45,6 +45,9 @@ func NewCartMultationRegistry() actor.MutationRegistry {
 		actor.NewMutation(UpsertSubscriptionDetails, func() *messages.UpsertSubscriptionDetails {
 			return &messages.UpsertSubscriptionDetails{}
 		}),
+		actor.NewMutation(PreConditionFailed, func() *messages.PreConditionFailed {
+			return &messages.PreConditionFailed{}
+		}),
 	)
 	return reg
 

pkg/cart/mutation_add_voucher.go

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

pkg/cart/mutation_precondition.go

@@ -0,0 +1,7 @@
+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_test.go

@@ -66,7 +66,7 @@ func msgClearCart() *messages.ClearCartRequest {
 	return &messages.ClearCartRequest{}
 }
 
-func msgAddVoucher(code string, value int64, rules ...*messages.VoucherRule) *messages.AddVoucher {
+func msgAddVoucher(code string, value int64, rules ...string) *messages.AddVoucher {
 	return &messages.AddVoucher{Code: code, Value: value, VoucherRules: rules}
 }