Enha: state to hold room_id instead of whole room

handlers/actions.go

@@ -8,7 +8,25 @@ import (
 )
 
 func createRoom(ctx context.Context, req *models.RoomReq) (*models.Room, error) {
-	return nil, nil
+	creator, ok := ctx.Value(models.CtxUsernameKey).(string)
+	if !ok {
+		err := errors.New("failed to extract user from ctx")
+		return nil, err
+	}
+	room := req.CreateRoom(creator)
+	if err := saveRoom(room); err != nil {
+		return nil, err
+	}
+	return room, nil
+}
+
+func saveRoom(room *models.Room) error {
+	data, err := json.Marshal(room)
+	if err != nil {
+		return err
+	}
+	memcache.Set(models.CacheRoomPrefix+room.ID, data)
+	return nil
 }
 
 func getRoomByID(roomID string) (*models.Room, error) {
@@ -86,3 +104,19 @@ func getAllNames() []string {
 	}
 	return names
 }
+
+func getFullInfoByCtx(ctx context.Context) (*models.FullInfo, error) {
+	state, err := getStateByCtx(ctx)
+	if err != nil {
+		return nil, err
+	}
+	room, err := getRoomByID(state.RoomID)
+	if err != nil {
+		return nil, err
+	}
+	resp := &models.FullInfo{
+		State: state,
+		Room:  room,
+	}
+	return resp, nil
+}