Add DELETE endpoint to remove items from cart

Implemented a new DELETE endpoint to handle item removal from the user's cart. Added the corresponding handler and service logic to process the deletion, including interactions with the database to ensure item removal. Updated the cart service interface to include the delete functionality.

pkg/abstract/cart/cart.go

@@ -13,4 +13,5 @@ type Cart interface {
 
 type CartItems interface {
 	ListItems(ctx context.Context, cartId int64) (*[]cart.CartItems, error)
+	DeleteItem(ctx context.Context, cartItemId int64) (bool, error)
 }

pkg/handler/cart/cart.go

@@ -5,6 +5,7 @@ import (
 	"context"
 	"github.com/gin-gonic/gin"
 	"net/http"
+	"strconv"
 	"time"
 )
 
@@ -78,3 +79,20 @@ func (s *CartHandler) getItems(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"items": items})
 	return
 }
+
+func (s *CartHandler) deleteItemFromCart(c *gin.Context) {
+	ctx, cancel := context.WithTimeout(c.Request.Context(), 5*time.Second)
+	defer cancel()
+
+	cartItemId := c.Param("id")
+	cartItemID, _ := strconv.ParseInt(cartItemId, 10, 64)
+
+	_, err := s.service.DeleteItem(ctx, cartItemID)
+	if err != nil {
+		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.Status(http.StatusNoContent)
+
+}

pkg/handler/cart/routes.go

@@ -12,5 +12,7 @@ func (s *CartHandler) registerGroup(middleware ...gin.HandlerFunc) gin.IRoutes {
 func (s *CartHandler) routes() http.Handler {
 	s.router.POST("/add", s.addToCart)
 	s.router.GET("/list", s.getItems)
+	s.router.DELETE("/remove/:id", s.deleteItemFromCart)
+
 	return s.serve.Gin
 }

pkg/service/cart/delete_item_from_cart.go

@@ -0,0 +1,16 @@
+package cart
+
+import (
+	"Go_Food_Delivery/pkg/database"
+	"context"
+)
+
+func (cartSrv *CartService) DeleteItem(ctx context.Context, cartItemId int64) (bool, error) {
+	filter := database.Filter{"cart_item_id": cartItemId}
+
+	_, err := cartSrv.db.Delete(ctx, "cart_items", filter)
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}