Add internal/handler/food.go

internal/handler/food.go

@@ -0,0 +1,104 @@
+package handler
+
+import (
+	"strconv"
+
+	"gotest/internal/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+// FoodHandler 外卖数据处理器
+type FoodHandler struct {
+	svc *service.FoodService
+}
+
+// NewFoodHandler 创建外卖数据处理器
+func NewFoodHandler(svc *service.FoodService) *FoodHandler {
+	return &FoodHandler{svc: svc}
+}
+
+// GetHomeData 获取外卖首页数据 GET /api/v1/food/home
+func (h *FoodHandler) GetHomeData(c *gin.Context) {
+	data, err := h.svc.GetHomeData()
+	if err != nil {
+		FailInternal(c, "获取首页数据失败")
+		return
+	}
+	Success(c, data)
+}
+
+// ListCategories 获取餐厅分类 GET /api/v1/food/categories
+func (h *FoodHandler) ListCategories(c *gin.Context) {
+	data, err := h.svc.ListCategories()
+	if err != nil {
+		FailInternal(c, "获取分类失败")
+		return
+	}
+	Success(c, data)
+}
+
+// ListRestaurants 获取餐厅列表 GET /api/v1/food/restaurants?category_id=&keyword=&sort=&page=&page_size=
+func (h *FoodHandler) ListRestaurants(c *gin.Context) {
+	categoryID, _ := strconv.ParseUint(c.Query("category_id"), 10, 64)
+	keyword := c.Query("keyword")
+	sort := c.Query("sort")
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "12"))
+	if page < 1 {
+		page = 1
+	}
+	if pageSize < 1 || pageSize > 100 {
+		pageSize = 12
+	}
+	data, err := h.svc.ListRestaurants(uint(categoryID), keyword, sort, page, pageSize)
+	if err != nil {
+		FailInternal(c, "获取餐厅列表失败")
+		return
+	}
+	Success(c, data)
+}
+
+// GetRestaurant 获取餐厅详情 GET /api/v1/food/restaurants/:id
+func (h *FoodHandler) GetRestaurant(c *gin.Context) {
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		FailBadRequest(c, "无效的餐厅 ID")
+		return
+	}
+	data, err := h.svc.GetRestaurant(uint(id))
+	if err != nil {
+		FailBadRequest(c, "餐厅不存在")
+		return
+	}
+	Success(c, data)
+}
+
+// GetRestaurantMenu 获取餐厅菜单 GET /api/v1/food/restaurants/:id/menu
+func (h *FoodHandler) GetRestaurantMenu(c *gin.Context) {
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		FailBadRequest(c, "无效的餐厅 ID")
+		return
+	}
+	data, err := h.svc.GetRestaurantMenu(uint(id))
+	if err != nil {
+		FailBadRequest(c, "菜单获取失败")
+		return
+	}
+	Success(c, data)
+}
+
+// ListFeatured 获取推荐餐厅 GET /api/v1/food/featured?limit=
+func (h *FoodHandler) ListFeatured(c *gin.Context) {
+	limit, _ := strconv.Atoi(c.DefaultQuery("limit", "8"))
+	if limit < 1 || limit > 50 {
+		limit = 8
+	}
+	data, err := h.svc.ListFeatured(limit)
+	if err != nil {
+		FailInternal(c, "获取推荐餐厅失败")
+		return
+	}
+	Success(c, data)
+}