fix:分享
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@@ -0,0 +1,272 @@
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package service
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import (
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"context"
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"log/slog"
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"git.lzcwy.cn/zhengchiliu/zt-closet-backend/global"
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"git.lzcwy.cn/zhengchiliu/zt-closet-backend/internal/dto"
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"git.lzcwy.cn/zhengchiliu/zt-closet-backend/internal/mysqldao"
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"git.lzcwy.cn/zhengchiliu/zt-closet-backend/internal/mysqlmodel"
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"git.lzcwy.cn/zhengchiliu/zt-closet-backend/pkg/errcode"
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"git.lzcwy.cn/zhengchiliu/zt-closet-backend/pkg/upload"
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)
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// OutfitShareService 穿搭分享业务服务。
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type OutfitShareService struct {
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shareDao *mysqldao.OutfitShareDao
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receiverDao *mysqldao.OutfitShareReceiverDao
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outfitDao *mysqldao.OutfitDao
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outfitItemDao *mysqldao.OutfitItemDao
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clothesDao *mysqldao.ClothesDao
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userDao *mysqldao.UserDao
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}
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// NewOutfitShareService 创建穿搭分享服务。
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func NewOutfitShareService() *OutfitShareService {
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return &OutfitShareService{
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shareDao: mysqldao.NewOutfitShareDao(),
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receiverDao: mysqldao.NewOutfitShareReceiverDao(),
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outfitDao: mysqldao.NewOutfitDao(),
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outfitItemDao: mysqldao.NewOutfitItemDao(),
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clothesDao: mysqldao.NewClothesDao(),
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userDao: mysqldao.NewUserDao(),
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}
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}
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// Create 创建穿搭分享。仅能分享本人且已公开的穿搭；不消耗额度。
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func (s *OutfitShareService) Create(ctx context.Context, userID int64, request *dto.OutfitShareCreateRequest) (*dto.OutfitShareCreateResponse, *errcode.Error) {
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ctx, span := global.Tracer.Start(ctx, "svc.OutfitShareCreate")
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defer span.End()
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outfit, err := s.outfitDao.OutfitGetByUUID(ctx, request.OutfitUUID)
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if err != nil {
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if isNotFound(err) {
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return nil, errcode.OutfitNotFound
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}
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return nil, errcode.DatabaseError
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}
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if outfit.UserID != userID {
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return nil, errcode.OutfitNoPermission
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}
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// 分享前提：穿搭已公开可见（否则对方打开后无法查看）。
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if !isOutfitPublicVisible(outfit) {
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return nil, errcode.InvalidParams.WithDetails("请先公开该穿搭再分享")
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}
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share := &mysqlmodel.OutfitShare{
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ShareUUID: genUUID(),
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UserID: userID,
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OutfitID: outfit.ID,
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Status: ShareStatusNormal,
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}
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if err := s.shareDao.OutfitShareCreate(ctx, share); err != nil {
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return nil, errcode.DatabaseError
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}
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return &dto.OutfitShareCreateResponse{ShareUUID: share.ShareUUID}, nil
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}
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// Detail 查看穿搭分享详情（访客 / 属主视角）。访客访问成功即记录接收关系。
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func (s *OutfitShareService) Detail(ctx context.Context, userID int64, shareUUID string) (*dto.OutfitShareDetailResponse, *errcode.Error) {
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ctx, span := global.Tracer.Start(ctx, "svc.OutfitShareDetail")
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defer span.End()
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share, err := s.shareDao.OutfitShareGetByUUID(ctx, shareUUID)
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if err != nil {
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if isNotFound(err) {
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return nil, errcode.OutfitShareNotFound
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}
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return nil, errcode.DatabaseError
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}
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if share.Status == ShareStatusCancelled {
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return nil, errcode.OutfitShareCancelled
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}
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outfit, oerr := s.outfitDao.OutfitGetByID(ctx, share.OutfitID)
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if oerr != nil {
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// 穿搭已删除：分享视为失效
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if isNotFound(oerr) {
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return nil, errcode.OutfitShareNotFound
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}
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return nil, errcode.DatabaseError
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}
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isOwner := share.UserID == userID
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// 访客视角：穿搭必须仍处于公开可见状态，否则分享失效
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if !isOwner && !isOutfitPublicVisible(outfit) {
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return nil, errcode.OutfitShareNotFound
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}
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items, lerr := loadOutfitItemResponses(ctx, s.outfitItemDao, s.clothesDao, outfit.ID)
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if lerr != nil {
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return nil, errcode.DatabaseError
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}
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// 记录接收关系：登录且非属主用户成功访问即视为收到，幂等，失败不阻断详情返回。
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if userID > 0 && !isOwner {
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if rerr := s.receiverDao.OutfitShareReceiverUpsert(ctx, shareUUID, userID); rerr != nil {
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slog.WarnContext(ctx, "record outfit share receiver failed", "share_uuid", shareUUID, "user_id", userID, "error", rerr)
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}
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}
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ownerName, ownerAvatar := "", ""
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if owner, uerr := s.userDao.UserGetByID(ctx, share.UserID); uerr == nil {
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ownerName = owner.Username
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ownerAvatar = upload.AvatarURL(owner.Avatar)
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}
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return &dto.OutfitShareDetailResponse{
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ShareUUID: shareUUID,
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OwnerName: ownerName,
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OwnerAvatar: ownerAvatar,
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Status: share.Status,
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IsOwner: isOwner,
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Outfit: buildOutfitCreateResponse(outfit, items),
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}, nil
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}
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// List 分页查询我的穿搭分享。
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func (s *OutfitShareService) List(ctx context.Context, userID int64, request *dto.OutfitShareListRequest) (*dto.OutfitShareListResponse, *errcode.Error) {
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ctx, span := global.Tracer.Start(ctx, "svc.OutfitShareList")
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defer span.End()
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page, pageSize := normalizePage(request.Page, request.PageSize)
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list, total, err := s.shareDao.OutfitShareListByUserID(ctx, userID, request.Status, page, pageSize)
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if err != nil {
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return nil, errcode.DatabaseError
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}
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items, berr := s.buildShareItems(ctx, list)
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if berr != nil {
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return nil, errcode.DatabaseError
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}
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return &dto.OutfitShareListResponse{
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PageResponse: dto.PageResponse{Total: total, Page: page, PageSize: pageSize},
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List: items,
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}, nil
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}
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// ListReceived 分页查询"分享给我的"穿搭分享。
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func (s *OutfitShareService) ListReceived(ctx context.Context, userID int64, request *dto.OutfitShareListRequest) (*dto.OutfitShareListResponse, *errcode.Error) {
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ctx, span := global.Tracer.Start(ctx, "svc.OutfitShareReceivedList")
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defer span.End()
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page, pageSize := normalizePage(request.Page, request.PageSize)
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list, total, err := s.receiverDao.OutfitShareReceivedList(ctx, userID, request.Status, page, pageSize)
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if err != nil {
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return nil, errcode.DatabaseError
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}
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items, berr := s.buildShareItems(ctx, list)
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if berr != nil {
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return nil, errcode.DatabaseError
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}
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// 批量填充分享者信息。
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ownerIDs := make([]int64, 0, len(list))
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for _, sh := range list {
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ownerIDs = append(ownerIDs, sh.UserID)
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}
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ownerByID := make(map[int64]mysqlmodel.User, len(ownerIDs))
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if owners, oerr := s.userDao.UserGetByIDs(ctx, ownerIDs); oerr == nil {
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for _, u := range owners {
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ownerByID[u.ID] = u
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}
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}
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for i := range items {
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if owner, ok := ownerByID[list[i].UserID]; ok {
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items[i].OwnerName = owner.Username
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items[i].OwnerAvatar = upload.AvatarURL(owner.Avatar)
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}
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}
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return &dto.OutfitShareListResponse{
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PageResponse: dto.PageResponse{Total: total, Page: page, PageSize: pageSize},
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List: items,
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}, nil
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}
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// Cancel 取消穿搭分享（校验归属）。
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func (s *OutfitShareService) Cancel(ctx context.Context, userID int64, request *dto.OutfitShareCancelRequest) (*dto.OutfitShareCancelResponse, *errcode.Error) {
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ctx, span := global.Tracer.Start(ctx, "svc.OutfitShareCancel")
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defer span.End()
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share, err := s.shareDao.OutfitShareGetByUUID(ctx, request.ShareUUID)
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if err != nil {
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if isNotFound(err) {
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return nil, errcode.OutfitShareNotFound
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}
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return nil, errcode.DatabaseError
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}
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if share.UserID != userID {
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return nil, errcode.Forbidden
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}
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if err := s.shareDao.OutfitShareUpdateStatus(ctx, request.ShareUUID, ShareStatusCancelled); err != nil {
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return nil, errcode.DatabaseError
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}
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return &dto.OutfitShareCancelResponse{}, nil
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}
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// ---- 内部辅助 ----
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// buildShareItems 批量组装分享列表项（一次性加载穿搭与首件衣物，避免 N+1）。
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func (s *OutfitShareService) buildShareItems(ctx context.Context, list []mysqlmodel.OutfitShare) ([]dto.OutfitShareItemResponse, error) {
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items := make([]dto.OutfitShareItemResponse, 0, len(list))
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if len(list) == 0 {
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return items, nil
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}
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outfitIDs := make([]int64, 0, len(list))
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for _, sh := range list {
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outfitIDs = append(outfitIDs, sh.OutfitID)
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}
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outfits, err := s.outfitDao.OutfitGetByIDs(ctx, outfitIDs)
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if err != nil {
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return nil, err
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}
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outfitByID := make(map[int64]mysqlmodel.Outfit, len(outfits))
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for i := range outfits {
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outfitByID[outfits[i].ID] = outfits[i]
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}
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allItems, err := s.outfitItemDao.OutfitItemListByOutfitIDs(ctx, outfitIDs)
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if err != nil {
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return nil, err
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}
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countByOutfit := make(map[int64]int, len(outfitIDs))
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firstClothesByOutfit := make(map[int64]int64, len(outfitIDs))
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for _, it := range allItems {
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countByOutfit[it.OutfitID]++
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if _, ok := firstClothesByOutfit[it.OutfitID]; !ok {
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firstClothesByOutfit[it.OutfitID] = it.ClothesID
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}
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}
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clothesIDs := make([]int64, 0, len(firstClothesByOutfit))
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for _, cid := range firstClothesByOutfit {
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clothesIDs = append(clothesIDs, cid)
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}
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coverByClothesID := make(map[int64]string, len(clothesIDs))
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if clothesList, cerr := s.clothesDao.ClothesGetByIDs(ctx, clothesIDs); cerr == nil {
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for i := range clothesList {
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coverByClothesID[clothesList[i].ID] = clothesImageURL(clothesList[i].ProcessedImage)
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}
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}
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for _, sh := range list {
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o := outfitByID[sh.OutfitID]
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cover := ""
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if cid, ok := firstClothesByOutfit[sh.OutfitID]; ok {
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cover = coverByClothesID[cid]
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}
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items = append(items, dto.OutfitShareItemResponse{
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ShareUUID: sh.ShareUUID,
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OutfitUUID: o.OutfitUUID,
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OutfitName: o.OutfitName,
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CoverImage: cover,
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ItemsCount: countByOutfit[sh.OutfitID],
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Status: sh.Status,
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CreatedAt: sh.CreatedAt,
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})
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}
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return items, nil
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}
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