feat: toggling Create/Join room button

rooms/rooms_manager.go

@@ -40,7 +40,7 @@ func (r *Room) UnmarshalBinary(data []byte) error {
 var ctx = context.Background()
 
 type RoomManager interface {
-	Get(roomName string) (Room, error) // but we need Get by name
+	Get(roomName string) (Room, bool, error)
 	Save(room Room) error
 }
 const roomRedisPrefix = "room"
@@ -53,15 +53,18 @@ type RedisRM struct {
 	Rdb *redis.Client
 }
 
-func (redisRM RedisRM) Get(roomName string) (Room, error) {
+func (redisRM RedisRM) Get(roomName string) (Room, bool, error) {
 	var readRoom Room
 	err := redisRM.Rdb.Get(ctx, roomNameToRedisId(roomName)).Scan(&readRoom)
+	if err == redis.Nil {
+		return Room{}, false, nil
+	}
 	if err != nil {
 		log.Printf("error reading room with id %s : %s", roomName, err)
-		return Room{}, err
+		return Room{}, false, err
 	}
 
-	return readRoom, nil
+	return readRoom, true, nil
 }
 
 func (redisRM RedisRM) Save(room Room) error {