style: 统一代码格式和行尾
This commit is contained in:
leonincs
@@ -1,155 +1,155 @@
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package video
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import (
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"context"
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"errors"
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"feedsystem_video_go/internal/middleware/rabbitmq"
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rediscache "feedsystem_video_go/internal/middleware/redis"
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"feedsystem_video_go/internal/apierror"
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"regexp"
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"strings"
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"gorm.io/gorm"
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)
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type CommentService struct {
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repo *CommentRepository
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VideoRepository *VideoRepository
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cache *rediscache.Client
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commentMQ *rabbitmq.CommentMQ
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popularityMQ *rabbitmq.PopularityMQ
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}
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func NewCommentService(repo *CommentRepository, videoRepo *VideoRepository, cache *rediscache.Client, commentMQ *rabbitmq.CommentMQ, popularityMQ *rabbitmq.PopularityMQ) *CommentService {
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return &CommentService{repo: repo, VideoRepository: videoRepo, cache: cache, commentMQ: commentMQ, popularityMQ: popularityMQ}
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}
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func (s *CommentService) Publish(ctx context.Context, comment *Comment) error {
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if comment == nil {
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return errors.New("comment is nil")
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}
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comment.Username = strings.TrimSpace(comment.Username)
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comment.Content = strings.TrimSpace(comment.Content)
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if comment.VideoID == 0 || comment.AuthorID == 0 {
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return errors.New("video_id and author_id are required")
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}
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if comment.Content == "" {
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return errors.New("content is required")
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}
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exists, err := s.VideoRepository.IsExist(ctx, comment.VideoID)
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if err != nil {
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return err
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}
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if !exists {
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return errors.New("video not found")
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}
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mysqlEnqueued := false
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redisEnqueued := false
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if s.commentMQ != nil {
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if err := s.commentMQ.Publish(ctx, comment.Username, comment.VideoID, comment.AuthorID, comment.Content); err == nil {
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mysqlEnqueued = true
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}
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}
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if s.popularityMQ != nil {
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if err := s.popularityMQ.Update(ctx, comment.VideoID, 1); err == nil {
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redisEnqueued = true
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}
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}
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if mysqlEnqueued && redisEnqueued {
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s.notifyMentions(ctx, comment)
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return nil
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}
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// Fallback: direct MySQL write when comment MQ publish fails.
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if !mysqlEnqueued {
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if err := s.repo.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
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if err := tx.Select("id").First(&Video{}, comment.VideoID).Error; err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return errors.New("video not found")
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}
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return err
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}
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if err := tx.Create(comment).Error; err != nil {
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return err
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}
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return tx.Model(&Video{}).Where("id = ?", comment.VideoID).
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UpdateColumn("popularity", gorm.Expr("popularity + 1")).Error
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}); err != nil {
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return err
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}
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}
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// Fallback: direct Redis update when popularity MQ publish fails.
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if !redisEnqueued {
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UpdatePopularityCache(ctx, s.cache, comment.VideoID, 1)
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}
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s.notifyMentions(ctx, comment)
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return nil
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}
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func (s *CommentService) Delete(ctx context.Context, commentID uint, accountID uint) error {
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comment, err := s.repo.GetByID(ctx, commentID)
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if err != nil {
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return err
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}
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if comment == nil {
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return errors.New("comment not found")
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}
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if comment.AuthorID != accountID {
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return apierror.ErrUnauthorized
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}
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if s.commentMQ != nil {
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if err := s.commentMQ.Delete(ctx, commentID); err == nil {
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return nil
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}
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}
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return s.repo.DeleteComment(ctx, comment)
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}
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func (s *CommentService) GetAll(ctx context.Context, videoID uint) ([]Comment, error) {
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exists, err := s.VideoRepository.IsExist(ctx, videoID)
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if err != nil {
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return nil, err
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}
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if !exists {
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return nil, errors.New("video not found")
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}
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return s.repo.GetAllComments(ctx, videoID)
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}
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var mentionRegex = regexp.MustCompile(`@(\w+)`)
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func (s *CommentService) notifyMentions(ctx context.Context, comment *Comment) {
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matches := mentionRegex.FindAllStringSubmatch(comment.Content, -1)
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if len(matches) == 0 {
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return
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}
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seen := make(map[string]bool)
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for _, m := range matches {
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username := m[1]
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if seen[username] || username == comment.Username {
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continue
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}
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seen[username] = true
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var accID uint
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if err := s.repo.db.WithContext(ctx).Table("accounts").Where("username = ?", username).Select("id").Scan(&accID).Error; err != nil || accID == 0 {
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continue
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}
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notif := struct {
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RecipientID uint
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SenderID uint
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Type string
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TargetID uint
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Content string
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}{
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RecipientID: accID,
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SenderID: comment.AuthorID,
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Type: "mention",
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TargetID: comment.VideoID,
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Content: comment.Username + " 在评论中提到了你",
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}
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s.repo.db.WithContext(ctx).Table("notifications").Create(¬if)
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}
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}
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package video
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import (
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"context"
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"errors"
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"feedsystem_video_go/internal/apierror"
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"feedsystem_video_go/internal/middleware/rabbitmq"
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rediscache "feedsystem_video_go/internal/middleware/redis"
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"regexp"
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"strings"
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"gorm.io/gorm"
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)
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type CommentService struct {
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repo *CommentRepository
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VideoRepository *VideoRepository
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cache *rediscache.Client
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commentMQ *rabbitmq.CommentMQ
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popularityMQ *rabbitmq.PopularityMQ
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}
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func NewCommentService(repo *CommentRepository, videoRepo *VideoRepository, cache *rediscache.Client, commentMQ *rabbitmq.CommentMQ, popularityMQ *rabbitmq.PopularityMQ) *CommentService {
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return &CommentService{repo: repo, VideoRepository: videoRepo, cache: cache, commentMQ: commentMQ, popularityMQ: popularityMQ}
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}
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func (s *CommentService) Publish(ctx context.Context, comment *Comment) error {
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if comment == nil {
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return errors.New("comment is nil")
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}
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comment.Username = strings.TrimSpace(comment.Username)
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comment.Content = strings.TrimSpace(comment.Content)
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if comment.VideoID == 0 || comment.AuthorID == 0 {
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return errors.New("video_id and author_id are required")
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}
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if comment.Content == "" {
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return errors.New("content is required")
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}
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exists, err := s.VideoRepository.IsExist(ctx, comment.VideoID)
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if err != nil {
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return err
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}
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if !exists {
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return errors.New("video not found")
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}
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mysqlEnqueued := false
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redisEnqueued := false
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if s.commentMQ != nil {
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if err := s.commentMQ.Publish(ctx, comment.Username, comment.VideoID, comment.AuthorID, comment.Content); err == nil {
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mysqlEnqueued = true
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}
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}
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if s.popularityMQ != nil {
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if err := s.popularityMQ.Update(ctx, comment.VideoID, 1); err == nil {
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redisEnqueued = true
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}
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}
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if mysqlEnqueued && redisEnqueued {
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s.notifyMentions(ctx, comment)
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return nil
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}
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// Fallback: direct MySQL write when comment MQ publish fails.
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if !mysqlEnqueued {
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if err := s.repo.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
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if err := tx.Select("id").First(&Video{}, comment.VideoID).Error; err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return errors.New("video not found")
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}
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return err
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}
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if err := tx.Create(comment).Error; err != nil {
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return err
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}
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return tx.Model(&Video{}).Where("id = ?", comment.VideoID).
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UpdateColumn("popularity", gorm.Expr("popularity + 1")).Error
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}); err != nil {
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return err
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}
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}
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// Fallback: direct Redis update when popularity MQ publish fails.
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if !redisEnqueued {
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UpdatePopularityCache(ctx, s.cache, comment.VideoID, 1)
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}
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s.notifyMentions(ctx, comment)
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return nil
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}
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func (s *CommentService) Delete(ctx context.Context, commentID uint, accountID uint) error {
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comment, err := s.repo.GetByID(ctx, commentID)
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if err != nil {
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return err
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}
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if comment == nil {
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return errors.New("comment not found")
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}
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if comment.AuthorID != accountID {
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return apierror.ErrUnauthorized
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}
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if s.commentMQ != nil {
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if err := s.commentMQ.Delete(ctx, commentID); err == nil {
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return nil
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}
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}
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return s.repo.DeleteComment(ctx, comment)
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}
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func (s *CommentService) GetAll(ctx context.Context, videoID uint) ([]Comment, error) {
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exists, err := s.VideoRepository.IsExist(ctx, videoID)
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if err != nil {
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return nil, err
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}
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if !exists {
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return nil, errors.New("video not found")
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}
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return s.repo.GetAllComments(ctx, videoID)
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}
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var mentionRegex = regexp.MustCompile(`@(\w+)`)
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func (s *CommentService) notifyMentions(ctx context.Context, comment *Comment) {
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matches := mentionRegex.FindAllStringSubmatch(comment.Content, -1)
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if len(matches) == 0 {
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return
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}
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seen := make(map[string]bool)
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for _, m := range matches {
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username := m[1]
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if seen[username] || username == comment.Username {
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continue
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}
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seen[username] = true
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var accID uint
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if err := s.repo.db.WithContext(ctx).Table("accounts").Where("username = ?", username).Select("id").Scan(&accID).Error; err != nil || accID == 0 {
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continue
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}
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notif := struct {
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RecipientID uint
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SenderID uint
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Type string
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TargetID uint
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Content string
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}{
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RecipientID: accID,
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SenderID: comment.AuthorID,
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Type: "mention",
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TargetID: comment.VideoID,
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Content: comment.Username + " 在评论中提到了你",
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}
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s.repo.db.WithContext(ctx).Table("notifications").Create(¬if)
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}
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}
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