对接

internal/data/live/stream.go

@@ -62,6 +62,11 @@ func (r *streamRepo) RegisterPublisher(_ context.Context, streamID string, userI
 	}
 	state.stream.PublisherID = userID
 	state.stream.PublisherOnline = true
+	// A new broadcast starts with a fresh in-room like counter. Keeping the
+	// stream state object is useful when viewers connected before the publisher,
+	// but likes must never leak into the next broadcast session.
+	state.stream.LikeCount = 0
+	state.stream.StartedAt = time.Now()
 	state.stream.UpdatedAt = time.Now()
 	return clone(state.stream), nil
 }
@@ -75,6 +80,7 @@ func (r *streamRepo) UnregisterPublisher(_ context.Context, streamID string, use
 	}
 	state.stream.PublisherID = 0
 	state.stream.PublisherOnline = false
+	state.stream.StartedAt = time.Time{}
 	state.stream.UpdatedAt = time.Now()
 	if len(state.users) == 0 {
 		delete(r.streams, streamID)
@@ -121,6 +127,19 @@ func (r *streamRepo) UnregisterSubscriber(_ context.Context, streamID string, us
 	return nil
 }
 
+func (r *streamRepo) Like(_ context.Context, streamID string) (int, error) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	state := r.streams[streamID]
+	if state == nil {
+		state = &streamState{stream: &bizlive.Stream{StreamID: streamID}, users: make(map[uint]struct{})}
+		r.streams[streamID] = state
+	}
+	state.stream.LikeCount++
+	state.stream.UpdatedAt = time.Now()
+	return state.stream.LikeCount, nil
+}
+
 func clone(stream *bizlive.Stream) *bizlive.Stream {
 	if stream == nil {
 		return nil