add adyen

cmd/cart/checkout_builder.go

@@ -5,6 +5,8 @@ import (
 	"fmt"
 
 	"git.k6n.net/go-cart-actor/pkg/cart"
+	"github.com/adyen/adyen-go-api-library/v14/src/checkout"
+	"github.com/adyen/adyen-go-api-library/v14/src/common"
 )
 
 // CheckoutMeta carries the external / URL metadata required to build a
@@ -118,3 +120,61 @@ func BuildCheckoutOrderPayload(grain *cart.CartGrain, meta *CheckoutMeta) ([]byt
 
 	return payload, order, nil
 }
+
+func BuildAdyenCheckoutSession(grain *cart.CartGrain, meta *CheckoutMeta) (*checkout.CreateCheckoutSessionRequest, error) {
+	if grain == nil {
+		return nil, fmt.Errorf("nil grain")
+	}
+	if meta == nil {
+		return nil, fmt.Errorf("nil checkout meta")
+	}
+
+	currency := meta.Currency
+	if currency == "" {
+		currency = "SEK"
+	}
+	country := meta.Country
+	if country == "" {
+		country = "SE"
+	}
+
+	lineItems := make([]checkout.LineItem, 0, len(grain.Items)+len(grain.Deliveries))
+
+	// Item lines
+	for _, it := range grain.Items {
+		if it == nil {
+			continue
+		}
+		lineItems = append(lineItems, checkout.LineItem{
+			Quantity:           common.PtrInt64(int64(it.Quantity)),
+			AmountIncludingTax: common.PtrInt64(it.TotalPrice.IncVat),
+			Description:        common.PtrString(it.Meta.Name),
+		})
+	}
+
+	// Delivery lines
+	for _, d := range grain.Deliveries {
+		if d == nil || d.Price.IncVat <= 0 {
+			continue
+		}
+		lineItems = append(lineItems, checkout.LineItem{
+			Quantity:           common.PtrInt64(1),
+			AmountIncludingTax: common.PtrInt64(d.Price.IncVat),
+			Description:        common.PtrString("Delivery"),
+		})
+	}
+
+	return &checkout.CreateCheckoutSessionRequest{
+		Reference: grain.Id.String(),
+		Amount: checkout.Amount{
+			Value:    grain.TotalPrice.IncVat,
+			Currency: currency,
+		},
+		CountryCode:     common.PtrString(country),
+		MerchantAccount: "ElgigantenECOM",
+		Channel:         common.PtrString("Web"),
+		ReturnUrl:       meta.Checkout,
+		LineItems:       lineItems,
+	}, nil
+
+}