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toom1996
2026-09-03 00:32:52 +08:00
parent 1fd9c48f58
commit ffe84efc4c
9 changed files with 143 additions and 39 deletions
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65
internal/service/favorite_service.go
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@ -2,6 +2,7 @@ package service
import (
"context"
"strings"
"time"
"fashionapi/internal/dto"
@ -12,7 +13,8 @@ import (
// FavoriteService 收藏业务接口。所有方法均要求调用方已通过中间件解析出 userID。
type FavoriteService interface {
// ListPaged 分页取当前用户收藏（服务端分页，与收藏总量解耦）。
ListPaged(ctx context.Context, userID uint32, page, perPage int) ([]dto.FavoriteItem, int64, error)
// kind 传空表示不限粒度；传 gallery / image 只取对应粒度。
ListPaged(ctx context.Context, userID uint32, page, perPage int, kind string) ([]dto.FavoriteItem, int64, error)
// Add 新增收藏（幂等）。
Add(ctx context.Context, userID uint32, req dto.FavoriteAdd) (*dto.FavoriteItem, error)
// Remove 删除收藏。
@ -30,12 +32,12 @@ func NewFavoriteService(favs repository.FavoriteRepository) FavoriteService {
return &favoriteService{favs: favs}
}
func (s *favoriteService) ListPaged(ctx context.Context, userID uint32, page, perPage int) ([]dto.FavoriteItem, int64, error) {
rows, err := s.favs.ListPaged(ctx, userID, page, perPage)
func (s *favoriteService) ListPaged(ctx context.Context, userID uint32, page, perPage int, kind string) ([]dto.FavoriteItem, int64, error) {
rows, err := s.favs.ListPaged(ctx, userID, page, perPage, kind)
if err != nil {
return nil, 0, internalErr(err.Error())
}
total, err := s.favs.CountByUser(ctx, userID)
total, err := s.favs.CountByUser(ctx, userID, kind)
if err != nil {
return nil, 0, internalErr(err.Error())
}
@ -47,12 +49,26 @@ func (s *favoriteService) ListPaged(ctx context.Context, userID uint32, page, pe
}
func (s *favoriteService) Add(ctx context.Context, userID uint32, req dto.FavoriteAdd) (*dto.FavoriteItem, error) {
if req.TargetType != "runway" && req.TargetType != "street" {
if !validTargetType(req.TargetType) {
return nil, badRequest("invalid target_type")
}
if req.TargetUID == "" {
return nil, badRequest("target_uid required")
}
// 粒度：请求未显式指定时按 target_type 推断（*_image 即图片收藏）。
kind := req.Kind
if kind == "" {
kind = inferKind(req.TargetType)
}
if kind != dto.FavoriteKindGallery && kind != dto.FavoriteKindImage {
return nil, badRequest("invalid kind")
}
// 图片收藏必须带上图片地址，否则个人中心无从渲染。
if kind == dto.FavoriteKindImage && req.ImageURL == "" {
return nil, badRequest("image_url required for image favorite")
}
row := &model.Favorite{
UserID: userID,
TargetType: req.TargetType,
@ -60,6 +76,9 @@ func (s *favoriteService) Add(ctx context.Context, userID uint32, req dto.Favori
Title: req.Title,
Cover: req.Cover,
Brand: req.Brand,
Kind: kind,
ImageURL: req.ImageURL,
ParentUID: req.ParentUID,
CreatedAt: uint32(time.Now().Unix()),
}
if err := s.favs.Add(ctx, row); err != nil {
@ -90,13 +109,37 @@ func (s *favoriteService) Check(ctx context.Context, userID uint32, ids []string
return got, nil
}
// validTargetType 允许的收藏目标类型：图集两种 + 单图两种。
func validTargetType(t string) bool {
switch t {
case "runway", "street", "runway_image", "snap_image":
return true
}
return false
}
// inferKind 由 target_type 推断收藏粒度。
func inferKind(targetType string) string {
if strings.HasSuffix(targetType, "_image") {
return dto.FavoriteKindImage
}
return dto.FavoriteKindGallery
}
func toFavoriteItem(r model.Favorite) dto.FavoriteItem {
kind := r.Kind
if kind == "" {
kind = dto.FavoriteKindGallery // 历史数据无 kind 列值，一律视为图集
}
return dto.FavoriteItem{
ID: r.TargetUID,
Type: r.TargetType,
Title: r.Title,
Cover: r.Cover,
Brand: r.Brand,
AddedAt: r.CreatedAt,
ID: r.TargetUID,
Type: r.TargetType,
Title: r.Title,
Cover: r.Cover,
Brand: r.Brand,
AddedAt: r.CreatedAt,
Kind: kind,
ImageURL: r.ImageURL,
ParentUID: r.ParentUID,
}
}