fix:购物车下单

service/repositories/order.go

@@ -4,8 +4,10 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"fusenapi/model/gmodel"
 	"fusenapi/utils/basic"
+	"fusenapi/utils/order"
 	"fusenapi/utils/shopping_cart"
 	"fusenapi/utils/step_price"
 	"math"
@@ -33,12 +35,13 @@ type (
 
 	/* 下单 */
 	CreateReq struct {
-		CurrentCurrency  string  `json:"current_currency"`  // 当前货币
-		ExchangeRate     string  `json:"exchange_rate"`     // 换算汇率
-		OriginalCurrency string  `json:"original_currency"` // 原始货币
-		UserId           int64   `json:"user_id"`
-		CartIds          []int64 `json:"cart_ids"`
-		DeliveryMethod   string  `json:"delivery_method"`
+		ExpectedDeliveryTime string  `json:"expected_delivery_time"` // 预计到货时间
+		ExchangeRate         int64   `json:"exchange_rate"`          // 换算汇率（厘）
+		CurrentCurrency      string  `json:"current_currency"`       // 当前货币
+		OriginalCurrency     string  `json:"original_currency"`      // 原始货币
+		UserId               int64   `json:"user_id"`
+		CartIds              []int64 `json:"cart_ids"`
+		DeliveryMethod       string  `json:"delivery_method"`
 	}
 	CreateRes struct {
 		ErrorCode basic.StatusResponse
@@ -53,7 +56,9 @@ func (d *defaultOrder) Create(ctx context.Context, in *CreateReq) (res *CreateRe
 	err = d.MysqlConn.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
 		// 查询购物车
 		var shoppingCartList []*gmodel.RelaFsShoppingCart
-		resShoppingCartFind := tx.Preload("ShoppingCartProduct").Preload("ShoppingCartProductPriceList").Preload("ShoppingCartProductModel3dList").
+		resShoppingCartFind := tx.Preload("ShoppingCartProduct", func(dbPreload *gorm.DB) *gorm.DB {
+			return dbPreload.Table(gmodel.NewFsProductModel(tx).TableName()).Preload("CoverResource")
+		}).Preload("ShoppingCartProductPriceList").Preload("ShoppingCartProductModel3dList").
 			Where("id IN ?", in.CartIds).
 			Where("user_id = ?", in.UserId).
 			Find(&shoppingCartList)
@@ -71,8 +76,29 @@ func (d *defaultOrder) Create(ctx context.Context, in *CreateReq) (res *CreateRe
 			return errors.New(errorCode.Message)
 		}
 
+		// 订单商品列表
 		var orderProductList []*gmodel.OrderProduct
 
+		var shippingFee gmodel.AmountInfo
+		// 订单税费总价（厘）
+		var shippingFeeTotal int64
+
+		var tax = gmodel.AmountInfo{}
+		// 订单邮费总价（厘）
+		var taxTotal int64
+
+		var discount gmodel.AmountInfo
+		// 订单折扣总价（厘）
+		var discountTotal int64
+
+		var subtotal gmodel.AmountInfo
+		// 订单商品总价（厘）
+		var orderProductTotal int64
+
+		var total gmodel.AmountInfo
+		// 订单总价（厘）
+		var orderTotal int64
+
 		for _, shoppingCart := range shoppingCartList {
 			// 购物车快照
 			var shoppingCartSnapshot shopping_cart.CartSnapshot
@@ -152,16 +178,76 @@ func (d *defaultOrder) Create(ctx context.Context, in *CreateReq) (res *CreateRe
 			} else {
 				json.Unmarshal([]byte(*shoppingCartProductPrice.StepPrice), &stepPrice)
 			}
-			// 商品单价
+			// 商品单价（厘）
 			productPrice := step_price.GetCentStepPrice(int(boxNum), stepNum, stepPrice)
 
-			// 商品总价
+			// 商品总价（厘）
 			productTotalPrice := productPrice * *shoppingCart.PurchaseQuantity
 
-			// 存储订单商品
-			orderProductList = append(orderProductList, &gmodel.OrderProduct{})
+			// 订单商品总价（厘）
+			orderProductTotal = orderProductTotal + productTotalPrice
+
+			// 订单商品
+			var productLogoResource *gmodel.Resource
+			if shoppingCart.ShoppingCartProduct.CoverResource != nil {
+				var coverResourceMetadata map[string]interface{}
+				if shoppingCart.ShoppingCartProduct.CoverResource.Metadata != nil {
+					json.Unmarshal(*shoppingCart.ShoppingCartProduct.CoverResource.Metadata, &coverResourceMetadata)
+				}
+				productLogoResource = &gmodel.Resource{
+					Metadata:     coverResourceMetadata,
+					ResourceID:   shoppingCart.ShoppingCartProduct.CoverResource.ResourceId,
+					ResourceType: *shoppingCart.ShoppingCartProduct.CoverResource.ResourceType,
+					ResourceURL:  *shoppingCart.ShoppingCartProduct.CoverResource.ResourceUrl,
+				}
+			}
+			var productSnapshot = make(map[string]interface{}, 1)
+			productSnapshot["product_snapshot"] = shoppingCart.ShoppingCartProduct
+
+			orderProductList = append(orderProductList, &gmodel.OrderProduct{
+				Amount: order.GetAmountInfo(order.GetAmountInfoReq{
+					ExchangeRate:     in.ExchangeRate,
+					Initiate:         productTotalPrice,
+					Current:          productTotalPrice,
+					CurrentCurrency:  in.CurrentCurrency,
+					OriginalCurrency: in.OriginalCurrency,
+				}),
+				ExpectedDeliveryTime: in.ExpectedDeliveryTime,
+				Number:               *shoppingCart.PurchaseQuantity,
+				ProductID:            *shoppingCart.ProductId,
+				ProductLogo:          *shoppingCart.ShoppingCartProduct.Cover,
+				ProductLogoResource:  productLogoResource,
+				ProductName:          *shoppingCart.ShoppingCartProduct.Title,
+				ProductPrice: order.GetAmountInfo(order.GetAmountInfoReq{
+					ExchangeRate:     in.ExchangeRate,
+					Initiate:         productPrice,
+					Current:          productPrice,
+					CurrentCurrency:  in.CurrentCurrency,
+					OriginalCurrency: in.OriginalCurrency,
+				}),
+				ProductSnapshot:      productSnapshot,
+				ShoppingCartSnapshot: &shoppingCart.FsShoppingCart,
+			})
 		}
 
+		subtotal = order.GetAmountInfo(order.GetAmountInfoReq{
+			ExchangeRate:     in.ExchangeRate,
+			Initiate:         orderProductTotal,
+			Current:          orderProductTotal,
+			CurrentCurrency:  in.CurrentCurrency,
+			OriginalCurrency: in.OriginalCurrency,
+		})
+
+		orderTotal = orderProductTotal + shippingFeeTotal + taxTotal - discountTotal
+		total = order.GetAmountInfo(order.GetAmountInfoReq{
+			ExchangeRate:     in.ExchangeRate,
+			Initiate:         orderTotal,
+			Current:          orderTotal,
+			CurrentCurrency:  in.CurrentCurrency,
+			OriginalCurrency: in.OriginalCurrency,
+		})
+		fmt.Println(shippingFee, shippingFeeTotal, tax, taxTotal, discount, discountTotal, subtotal, orderProductTotal, total)
+
 		return nil
 	})
 	if err != nil {