Feat: member online count

internal/op/hub.go

@@ -247,6 +247,19 @@ func (h *Hub) IsOnline(userID string) bool {
 	return ok
 }
 
+func (h *Hub) OnlineCount(userID string) int {
+	c, ok := h.clients.Load(userID)
+	if !ok {
+		return 0
+	}
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+	if len(c.m) == 0 {
+		h.clients.CompareAndDelete(userID, c)
+	}
+	return len(c.m)
+}
+
 func (h *Hub) KickUser(userID string) error {
 	if h.Closed() {
 		return ErrAlreadyClosed

internal/op/room.go

@@ -413,11 +413,16 @@ func (r *Room) UnregisterClient(cli *Client) error {
 	return r.hub.UnRegClient(cli)
 }
 
-func (r *Room) IsOnline(userID string) bool {
+func (r *Room) UserIsOnline(userID string) bool {
 	r.lazyInitHub()
 	return r.hub.IsOnline(userID)
 }
 
+func (r *Room) UserOnlineCount(userID string) int {
+	r.lazyInitHub()
+	return r.hub.OnlineCount(userID)
+}
+
 func (r *Room) SetCurrentStatus(playing bool, seek float64, rate float64, timeDiff float64) *Status {
 	return r.current.SetStatus(playing, seek, rate, timeDiff)
 }

server/handlers/admin.go

@@ -313,7 +313,7 @@ func genRoomMemberListResp(us []*dbModel.User, room *op.Room) []*model.RoomMembe
 			UserID:           v.ID,
 			Username:         v.Username,
 			JoinAt:           v.RoomMembers[0].CreatedAt.UnixMilli(),
-			IsOnline:         room.IsOnline(v.ID),
+			OnlineCount:      room.UserOnlineCount(v.ID),
 			Role:             v.RoomMembers[0].Role,
 			Status:           v.RoomMembers[0].Status,
 			RoomID:           v.RoomMembers[0].RoomID,

server/model/member.go

@@ -10,7 +10,7 @@ type RoomMembersResp struct {
 	UserID           string                       `json:"userId"`
 	Username         string                       `json:"username"`
 	JoinAt           int64                        `json:"joinAt"`
-	IsOnline         bool                         `json:"isOnline"`
+	OnlineCount      int                          `json:"onlineCount"`
 	Role             dbModel.RoomMemberRole       `json:"role"`
 	Status           dbModel.RoomMemberStatus     `json:"status"`
 	RoomID           string                       `json:"roomId"`