refactor service layer

domain/shoppingbasket/entity/entity.go

@@ -35,3 +35,13 @@ const (
 	CartStatusExpired    CartStatus = "expired"
 	CartStatusCheckedOut CartStatus = "checked_out"
 )
+
+func (c CartStatus) IsValid() bool {
+	switch c {
+	case CartStatusExpired, CartStatusActive, CartStatusCheckedOut:
+		return true
+
+	default:
+		return false
+	}
+}

domain/shoppingbasket/service/param.go

@@ -3,31 +3,34 @@ package service
 import (
 	"git.gocasts.ir/ebhomengo/niki/domain/shoppingbasket/entity"
 	"git.gocasts.ir/ebhomengo/niki/types"
+	"time"
 )
 
 type AddToCartRequest struct {
 	UserID    types.ID `json:"user_id"`
 	ProductID types.ID `json:"product_id"`
 	Quantity  int      `json:"quantity"`
-	Price     types.Price `json:"price"`
+	Price     float64  `json:"price"`
 	Name      string   `json:"name"`
 }
 
 type GetCartResponse struct {
+	ID         types.ID      `json:"id"`
 	UserID     types.ID      `json:"user_id"`
 	Items      []entity.Item `json:"items"`
-	TotalPrice types.Price   `json:"total_price"`
-	CreatedAt  int64         `json:"created_at"`
-	ExpireAt   int64         `json:"expire_at"`
+	TotalPrice float64       `json:"total_price"`
+	Status     string        `json:"status"`
+	CreatedAt  time.Time     `json:"created_at"`
+	ExpireAt   time.Time     `json:"expire_at"`
 }
 
 type RemoveFromCartRequest struct {
-	UserID    types.ID `json:"user_id"`
-	ProductID types.ID `json:"product_id"`
+	CartID types.ID `json:"cart_id"`
+	ItemID types.ID `json:"item_id"`
 }
 
 type UpdateQuantityRequest struct {
-	UserID    types.ID `json:"user_id"`
-	ProductID types.ID `json:"product_id"`
+	CartID   types.ID `json:"cart_id"`
+	ItemID   types.ID `json:"item_id"`
 	Quantity int      `json:"quantity"`
 }

domain/shoppingbasket/service/service.go

@@ -40,7 +40,7 @@ func (s Service) AddToBasket(ctx context.Context, req AddToCartRequest) error {
 		Quantity:  req.Quantity,
 		Price:     req.Price,
 		Name:      req.Name,
-		AddedAt:   time.Now().UnixNano(),
+		AddedAt:   time.Now().UTC(),
 	})
 }
 
@@ -58,9 +58,11 @@ func (s Service) GetCart(ctx context.Context, userID types.ID) (GetCartResponse,
 	}
 
 	return GetCartResponse{
+		ID:         res.ID,
 		UserID:     res.UserID,
 		Items:      res.Items,
 		TotalPrice: res.TotalPrice,
+		Status:     string(res.Status),
 		CreatedAt:  res.CreatedAt,
 		ExpireAt:   res.ExpireAt,
 	}, nil
@@ -74,7 +76,7 @@ func (s Service) RemoveFromCart(ctx context.Context, req RemoveFromCartRequest)
 		return err
 	}
 
-	return s.repo.DeleteItem(ctx, req.UserID, req.ProductID)
+	return s.repo.DeleteItem(ctx, req.CartID, req.ItemID)
 }
 
 func (s Service) UpdateQuantity(ctx context.Context, req UpdateQuantityRequest) error {
@@ -86,13 +88,13 @@ func (s Service) UpdateQuantity(ctx context.Context, req UpdateQuantityRequest)
 	}
 
 	if req.Quantity == 0 {
-		return s.repo.DeleteItem(ctx, req.UserID, req.ProductID)
+		return s.repo.DeleteItem(ctx, req.CartID, req.ItemID)
 	}
 
-	return s.repo.UpdateQuantity(ctx, req.UserID, req.ProductID, req.Quantity)
+	return s.repo.UpdateQuantity(ctx, req.CartID, req.ItemID, req.Quantity)
 }
 
-func (s Service) ClearCart(ctx context.Context, userID types.ID) error {
+func (s Service) ClearCart(ctx context.Context, cartID, userID types.ID) error {
 	const op = "shoppingbaskerapp.service.ClearCart"
 
 	if userID < 1 {
@@ -101,5 +103,14 @@ func (s Service) ClearCart(ctx context.Context, userID types.ID) error {
 			WithMessage("invalid user id")
 	}
 
-	return s.repo.DeleteCart(ctx, userID)
+	return s.repo.DeleteCart(ctx, cartID, userID)
+}
+
+func (s Service) UpdateCartStatus(ctx context.Context, cartID types.ID, status entity.CartStatus) error {
+	const op = "shoppingbaskerapp.service.ClearCart"
+	if !status.IsValid() {
+		return richerror.New(op).WithKind(richerror.KindInvalid).WithMessage("invalid status")
+	}
+
+	return s.repo.UpdateStatus(ctx, cartID, status)
 }