对接

internal/service/live/follow.go

@@ -0,0 +1,32 @@
+package live
+
+import (
+	"context"
+	"errors"
+
+	bizlive "kra/internal/biz/live"
+)
+
+type FollowService struct{ uc *bizlive.FollowUsecase }
+
+func NewFollowService(uc *bizlive.FollowUsecase) *FollowService { return &FollowService{uc: uc} }
+
+func (s *FollowService) Status(ctx context.Context, userID, roomID uint) (bool, error) {
+	_, err := s.uc.Get(ctx, userID, roomID)
+	if err == nil {
+		return true, nil
+	}
+	if errors.Is(err, bizlive.ErrFollowNotFound) {
+		return false, nil
+	}
+	return false, err
+}
+
+func (s *FollowService) Follow(ctx context.Context, userID, roomID uint) (bool, error) {
+	_, err := s.uc.Follow(ctx, userID, roomID)
+	return err == nil, err
+}
+
+func (s *FollowService) Unfollow(ctx context.Context, userID, roomID uint) error {
+	return s.uc.Unfollow(ctx, userID, roomID)
+}