feat(video): add likescount and updatelikescount

internal/http/router.go

@@ -46,7 +46,7 @@ func SetRouter(db *gorm.DB) *gin.Engine {
 	}
 	// like
 	likeRepository := video.NewLikeRepository(db)
-	likeService := video.NewLikeService(likeRepository)
+	likeService := video.NewLikeService(likeRepository, videoRepository)
 	likeHandler := video.NewLikeHandler(likeService)
 	likeGroup := r.Group("/like")
 	{

internal/video/like_service.go

@@ -8,10 +8,11 @@ import (
 
 type LikeService struct {
 	repo      *LikeRepository
+	VideoRepo *VideoRepository
 }
 
-func NewLikeService(repo *LikeRepository) *LikeService {
-	return &LikeService{repo: repo}
+func NewLikeService(repo *LikeRepository, videoRepo *VideoRepository) *LikeService {
+	return &LikeService{repo: repo, VideoRepo: videoRepo}
 }
 
 func (s *LikeService) Like(ctx context.Context, like *Like) error {
@@ -19,14 +20,34 @@ func (s *LikeService) Like(ctx context.Context, like *Like) error {
 		return errors.New("user has liked this video")
 	}
 	like.CreatedAt = time.Now()
-	return s.repo.Like(ctx, like)
+	if err := s.repo.Like(ctx, like); err != nil {
+		return err
+	}
+	likesCount, err := s.GetLikesCount(ctx, like.VideoID)
+	if err != nil {
+		return err
+	}
+	if err := s.VideoRepo.UpdateLikesCount(ctx, like.VideoID, likesCount); err != nil {
+		return err
+	}
+	return nil
 }
 
 func (s *LikeService) Unlike(ctx context.Context, like *Like) error {
 	if isLiked, err := s.IsLiked(ctx, like.VideoID, like.AccountID); err == nil && !isLiked {
 		return errors.New("user has not liked this video")
 	}
-	return s.repo.Unlike(ctx, like)
+	if err := s.repo.Unlike(ctx, like); err != nil {
+		return err
+	}
+	likesCount, err := s.GetLikesCount(ctx, like.VideoID)
+	if err != nil {
+		return err
+	}
+	if err := s.VideoRepo.UpdateLikesCount(ctx, like.VideoID, likesCount); err != nil {
+		return err
+	}
+	return nil
 }
 
 func (s *LikeService) IsLiked(ctx context.Context, videoID, accountID uint) (bool, error) {

internal/video/video_entity.go

@@ -8,5 +8,7 @@ type Video struct {
 	Title       string    `gorm:"type:varchar(255);not null"`
 	Description string    `gorm:"type:varchar(255);"`
 	PlayURL     string    `gorm:"type:varchar(255);not null"`
+	CoverURL    string    `gorm:"type:varchar(255);not null"`
 	CreateTime  time.Time `gorm:"autoCreateTime"`
+	LikesCount  int64     `gorm:"column:likes_count;not null;default:0" json:"likes_count"`
 }

internal/video/video_handler.go

@@ -18,6 +18,7 @@ type PublishVideoRequest struct {
 	Title       string `json:"title"`
 	Description string `json:"description"`
 	PlayURL     string `json:"play_url"`
+	CoverURL    string `json:"cover_url"`
 }
 
 type ListByAuthorIDRequest struct {
@@ -28,6 +29,11 @@ type GetDetailRequest struct {
 	ID uint `json:"id"`
 }
 
+type UpdateLikesCountRequest struct {
+	ID         uint  `json:"id"`
+	LikesCount int64 `json:"likes_count"`
+}
+
 func (vh *VideoHandler) PublishVideo(c *gin.Context) {
 	var req PublishVideoRequest
 	if err := c.ShouldBindJSON(&req); err != nil {
@@ -50,6 +56,7 @@ func (vh *VideoHandler) PublishVideo(c *gin.Context) {
 		Title:       req.Title,
 		Description: req.Description,
 		PlayURL:     req.PlayURL,
+		CoverURL:    req.CoverURL,
 		CreateTime:  time.Now(),
 	}
 	if err := vh.service.Publish(c.Request.Context(), video); err != nil {
@@ -86,3 +93,16 @@ func (vh *VideoHandler) GetDetail(c *gin.Context) {
 	}
 	c.JSON(200, video)
 }
+
+func (vh *VideoHandler) UpdateLikesCount(c *gin.Context) {
+	var req UpdateLikesCountRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(400, gin.H{"error": err.Error()})
+		return
+	}
+	if err := vh.service.UpdateLikesCount(c.Request.Context(), req.ID, req.LikesCount); err != nil {
+		c.JSON(400, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(200, gin.H{"message": "likes count updated"})
+}

internal/video/video_repo.go

@@ -40,3 +40,12 @@ func (vr *VideoRepository) GetByID(ctx context.Context, id uint) (*Video, error)
 	}
 	return &video, nil
 }
+
+func (vr *VideoRepository) UpdateLikesCount(ctx context.Context, id uint, likesCount int64) error {
+	if err := vr.db.WithContext(ctx).Model(&Video{}).
+		Where("id = ?", id).
+		Update("likes_count", likesCount).Error; err != nil {
+		return err
+	}
+	return nil
+}

internal/video/video_service.go

@@ -20,6 +20,9 @@ func (vs *VideoService) Publish(ctx context.Context, video *Video) error {
 	if video.PlayURL == "" {
 		return errors.New("play url is required")
 	}
+	if video.CoverURL == "" {
+		return errors.New("cover url is required")
+	}
 	if err := vs.repo.CreateVideo(ctx, video); err != nil {
 		return err
 	}
@@ -41,3 +44,10 @@ func (vs *VideoService) GetDetail(ctx context.Context, id uint) (*Video, error)
 	}
 	return video, nil
 }
+
+func (vs *VideoService) UpdateLikesCount(ctx context.Context, id uint, likesCount int64) error {
+	if err := vs.repo.UpdateLikesCount(ctx, id, likesCount); err != nil {
+		return err
+	}
+	return nil
+}