update

internal/handler/favorite_handler.go

@@ -0,0 +1,119 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+
+	"fashionapi/internal/dto"
+	"fashionapi/internal/middleware"
+	"fashionapi/internal/pkg/response"
+	"fashionapi/internal/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+// FavoriteHandler 收藏接口（需 Bearer 鉴权，挂在 /api/v1/auth 下）。
+type FavoriteHandler struct {
+	favs service.FavoriteService
+}
+
+// NewFavoriteHandler 创建收藏 handler。
+func NewFavoriteHandler(favs service.FavoriteService) *FavoriteHandler {
+	return &FavoriteHandler{favs: favs}
+}
+
+// List 当前用户收藏（服务端分页）。
+//
+// GET /api/v1/auth/favorites?page=1&per_page=24（per_page 上限 100）
+// 成功：200 { data: { items:[...], total, last_page } }
+func (h *FavoriteHandler) List(c *gin.Context) {
+	userID, ok := middleware.UserIDFrom(c)
+	if !ok {
+		response.Error(c, http.StatusUnauthorized, "unauthorized")
+		return
+	}
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	perPage, _ := strconv.Atoi(c.DefaultQuery("per_page", "24"))
+	if page < 1 {
+		page = 1
+	}
+	if perPage < 1 || perPage > 100 {
+		perPage = 24
+	}
+	items, total, err := h.favs.ListPaged(c.Request.Context(), userID, page, perPage)
+	if err != nil {
+		fail(c, err)
+		return
+	}
+	response.Data(c, http.StatusOK, gin.H{
+		"items":     items,
+		"total":     total,
+		"last_page": response.LastPage(total, perPage),
+	})
+}
+
+// Add 新增收藏（幂等：重复添加不报错）。
+//
+// POST /api/v1/auth/favorites
+// body: { target_type, target_uid, title?, cover?, brand? }
+// 成功：200 { data: <FavoriteItem> }
+func (h *FavoriteHandler) Add(c *gin.Context) {
+	userID, ok := middleware.UserIDFrom(c)
+	if !ok {
+		response.Error(c, http.StatusUnauthorized, "unauthorized")
+		return
+	}
+	var req dto.FavoriteAdd
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.Error(c, http.StatusBadRequest, "invalid request")
+		return
+	}
+	item, err := h.favs.Add(c.Request.Context(), userID, req)
+	if err != nil {
+		fail(c, err)
+		return
+	}
+	response.Data(c, http.StatusOK, item)
+}
+
+// Remove 删除收藏。
+//
+// DELETE /api/v1/auth/favorites/:target_uid
+// 成功：200 { data: { ok: true } }
+func (h *FavoriteHandler) Remove(c *gin.Context) {
+	userID, ok := middleware.UserIDFrom(c)
+	if !ok {
+		response.Error(c, http.StatusUnauthorized, "unauthorized")
+		return
+	}
+	uid := c.Param("target_uid")
+	if err := h.favs.Remove(c.Request.Context(), userID, uid); err != nil {
+		fail(c, err)
+		return
+	}
+	response.Data(c, http.StatusOK, gin.H{"ok": true})
+}
+
+// Check 批量查询给定 ids 中哪些已收藏（列表页打勾用，与收藏总量解耦）。
+//
+// POST /api/v1/auth/favorites/check
+// body: { ids: ["r=...","s=..."] }
+// 成功：200 { data: ["r=..."] }（仅返回已收藏的 id）
+func (h *FavoriteHandler) Check(c *gin.Context) {
+	userID, ok := middleware.UserIDFrom(c)
+	if !ok {
+		response.Error(c, http.StatusUnauthorized, "unauthorized")
+		return
+	}
+	var req dto.FavoriteCheck
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.Error(c, http.StatusBadRequest, "invalid request")
+		return
+	}
+	ids, err := h.favs.Check(c.Request.Context(), userID, req.IDs)
+	if err != nil {
+		fail(c, err)
+		return
+	}
+	response.Data(c, http.StatusOK, ids)
+}