feat(marketing): user profile update, ad placement management, logo limits

- Add PUT /auth/profile endpoint for nickname and avatar updates
- Add ad_placements table and CRUD admin API for managing ad units
- Add GET /marketing/ad-config public API for mini-program to fetch ad config
- Reduce logo limit from 10 to 3 per user, add 2MB file size validation

Made-with: Cursor

internal/marketing/handler/ad_placement_handler.go

@@ -0,0 +1,157 @@
+package handler
+
+import (
+	"errors"
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+
+	"wx_service/internal/marketing/model"
+	"wx_service/internal/marketing/repository"
+	commonmodel "wx_service/internal/model"
+)
+
+type AdPlacementHandler struct {
+	repo *repository.AdPlacementRepository
+}
+
+func NewAdPlacementHandler(repo *repository.AdPlacementRepository) *AdPlacementHandler {
+	return &AdPlacementHandler{repo: repo}
+}
+
+func (h *AdPlacementHandler) AdminList(c *gin.Context) {
+	list, err := h.repo.ListAll()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, commonmodel.Error(http.StatusInternalServerError, "获取广告位列表失败"))
+		return
+	}
+	c.JSON(http.StatusOK, commonmodel.Success(list))
+}
+
+type adPlacementCreateReq struct {
+	MiniProgramID uint   `json:"mini_program_id" binding:"required"`
+	Name          string `json:"name" binding:"required"`
+	AdType        string `json:"ad_type" binding:"required"`
+	AdUnitID      string `json:"ad_unit_id"`
+	Status        *int   `json:"status"`
+	Description   string `json:"description"`
+}
+
+func (h *AdPlacementHandler) AdminCreate(c *gin.Context) {
+	var req adPlacementCreateReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, commonmodel.Error(http.StatusBadRequest, "参数错误"))
+		return
+	}
+
+	p := &model.AdPlacement{
+		MiniProgramID: req.MiniProgramID,
+		Name:          req.Name,
+		AdType:        req.AdType,
+		AdUnitID:      req.AdUnitID,
+		Description:   req.Description,
+		Status:        1,
+	}
+	if req.Status != nil {
+		p.Status = *req.Status
+	}
+
+	if err := h.repo.Create(p); err != nil {
+		c.JSON(http.StatusInternalServerError, commonmodel.Error(http.StatusInternalServerError, "创建失败"))
+		return
+	}
+	c.JSON(http.StatusOK, commonmodel.Success(p))
+}
+
+type adPlacementUpdateReq struct {
+	Name        *string `json:"name"`
+	AdUnitID    *string `json:"ad_unit_id"`
+	Status      *int    `json:"status"`
+	Description *string `json:"description"`
+}
+
+func (h *AdPlacementHandler) AdminUpdate(c *gin.Context) {
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil || id == 0 {
+		c.JSON(http.StatusBadRequest, commonmodel.Error(http.StatusBadRequest, "无效 ID"))
+		return
+	}
+
+	p, err := h.repo.FindByID(uint(id))
+	if err != nil {
+		if errors.Is(err, repository.ErrAdPlacementNotFound) {
+			c.JSON(http.StatusNotFound, commonmodel.Error(http.StatusNotFound, "广告位不存在"))
+			return
+		}
+		c.JSON(http.StatusInternalServerError, commonmodel.Error(http.StatusInternalServerError, "查询失败"))
+		return
+	}
+
+	var req adPlacementUpdateReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, commonmodel.Error(http.StatusBadRequest, "参数错误"))
+		return
+	}
+
+	if req.Name != nil {
+		p.Name = *req.Name
+	}
+	if req.AdUnitID != nil {
+		p.AdUnitID = *req.AdUnitID
+	}
+	if req.Status != nil {
+		p.Status = *req.Status
+	}
+	if req.Description != nil {
+		p.Description = *req.Description
+	}
+
+	if err := h.repo.Update(p); err != nil {
+		c.JSON(http.StatusInternalServerError, commonmodel.Error(http.StatusInternalServerError, "更新失败"))
+		return
+	}
+	c.JSON(http.StatusOK, commonmodel.Success(p))
+}
+
+func (h *AdPlacementHandler) AdminDelete(c *gin.Context) {
+	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil || id == 0 {
+		c.JSON(http.StatusBadRequest, commonmodel.Error(http.StatusBadRequest, "无效 ID"))
+		return
+	}
+
+	if err := h.repo.Delete(uint(id)); err != nil {
+		if errors.Is(err, repository.ErrAdPlacementNotFound) {
+			c.JSON(http.StatusNotFound, commonmodel.Error(http.StatusNotFound, "广告位不存在"))
+			return
+		}
+		c.JSON(http.StatusInternalServerError, commonmodel.Error(http.StatusInternalServerError, "删除失败"))
+		return
+	}
+	c.JSON(http.StatusOK, commonmodel.Success(nil))
+}
+
+func (h *AdPlacementHandler) GetAdConfig(c *gin.Context) {
+	miniProgramIDStr := c.Query("mini_program_id")
+	miniProgramID, _ := strconv.ParseUint(miniProgramIDStr, 10, 64)
+	if miniProgramID == 0 {
+		c.JSON(http.StatusBadRequest, commonmodel.Error(http.StatusBadRequest, "缺少 mini_program_id"))
+		return
+	}
+
+	p, err := h.repo.FindByMiniProgramAndType(uint(miniProgramID), "rewarded_video")
+	if err != nil {
+		if errors.Is(err, repository.ErrAdPlacementNotFound) {
+			c.JSON(http.StatusOK, commonmodel.Success(gin.H{"ad_unit_id": "", "enabled": false}))
+			return
+		}
+		c.JSON(http.StatusInternalServerError, commonmodel.Error(http.StatusInternalServerError, "查询失败"))
+		return
+	}
+
+	c.JSON(http.StatusOK, commonmodel.Success(gin.H{
+		"ad_unit_id": p.AdUnitID,
+		"enabled":    p.Status == 1 && p.AdUnitID != "",
+	}))
+}

internal/marketing/handler/user_logo_handler.go

@@ -42,7 +42,7 @@ func (h *UserLogoHandler) Save(c *gin.Context) {
 
 	logo, err := h.svc.Save(user.ID, req)
 	if err != nil {
-		if errors.Is(err, service.ErrLogoLimitReached) {
+		if errors.Is(err, service.ErrLogoLimitReached) || errors.Is(err, service.ErrLogoTooLarge) {
 			c.JSON(http.StatusBadRequest, model.Error(http.StatusBadRequest, err.Error()))
 			return
 		}