use connectingPlayer instead of request

chess/player.go

@@ -20,13 +20,17 @@ type Player struct {
 	disconnectCallback func(p *Player)
 }
 
-func NewPlayer(uuid uuid.UUID) *Player {
+func NewPlayer(uuid uuid.UUID, opts ...func(*Player)) *Player {
 	player := &Player{
 		Uuid: uuid,
 		Conn: connection.NewConnection(
 			connection.WithContext(context.Background())),
 	}
 
+	for _, opt := range opts {
+		opt(player)
+	}
+
 	return player
 }
 
@@ -140,3 +144,7 @@ func (p *Player) readMessage() ([]byte, error) {
 func (p Player) GetPlayerColor() string {
 	return string(p.color)
 }
+
+func (p Player) IsEqualTo(other *Player) bool {
+	return p.Uuid.ID() == other.Uuid.ID()
+}

lobby_registry/registry.go

@@ -47,6 +47,10 @@ func (r *LobbyRegistry) GetLobbyByUUID(uuid uuid.UUID) *Lobby {
 }
 
 func (r *LobbyRegistry) GetLobbyByPassphrase(p utils.Passphrase) *Lobby {
+	if p.IsEmpty() {
+		return nil
+	}
+
 	for _, lobby := range r.lobbies {
 		if lobby.Passphrase == p {
 			return lobby

main.go

@@ -93,18 +93,20 @@ func joinPrivateGame(c *gin.Context) {
 	req := api.PlayerInfo{}
 	log.Println(c.Request.Body)
 	err := c.ShouldBindJSON(&req)
-	if err != nil || req.Passphrase == nil || *req.Passphrase == "" {
-		c.IndentedJSON(http.StatusNotFound, req)
+	if err != nil {
+		c.IndentedJSON(http.StatusBadRequest, req)
 	}
 
+	connectingPlayer := chess.NewPlayer(*req.PlayerID)
+	player := chess.NewPlayer(uuid.New())
 	u := usher.GetUsher()
 
 	if req.Passphrase != nil &&
 		*req.Passphrase != "" &&
 		req.PlayerID != nil &&
 		req.LobbyID != nil { //is reconnect
-		lobby := u.FindExistingPrivateLobby(utils.Passphrase(*req.Passphrase))
-		_, found := lobby.GetPlayerByUUID(*req.PlayerID)
+		lobby := u.FindExistingPrivateLobbyByID(utils.Passphrase(*req.Passphrase))
+		_, found := lobby.GetPlayerByUUID(connectingPlayer.Uuid)
 		if found {
 			c.IndentedJSON(
 				http.StatusOK,
@@ -119,11 +121,9 @@ func joinPrivateGame(c *gin.Context) {
 		}
 	}
 
-	player := chess.NewPlayer(uuid.New())
-
 	mut.Lock()
 	defer mut.Unlock()
-	lobby := u.FindExistingPrivateLobby(utils.Passphrase(*req.Passphrase))
+	lobby := u.FindExistingPrivateLobbyByID(utils.Passphrase(*req.Passphrase))
 	if lobby != nil {
 		u.AddPlayerToLobbyAndStartGameIfFull(player, lobby)
 	} else {

usher/usher.go

@@ -32,12 +32,8 @@ func (u *Usher) CreateNewPrivateLobby(player *chess.Player) *lobbies.Lobby {
 	return lobby
 }
 
-func (u *Usher) FindExistingPrivateLobby(p utils.Passphrase) *lobbies.Lobby {
-	lobby := lobbies.GetLobbyRegistry().GetLobbyByPassphrase(p)
-	if lobby == nil || lobby.IsFull() {
-		return nil
-	}
-	return lobby
+func (u *Usher) FindExistingPrivateLobbyByID(p utils.Passphrase) *lobbies.Lobby {
+	return lobbies.GetLobbyRegistry().GetLobbyByPassphrase(p)
 }
 
 func (u *Usher) AddPlayerToLobbyAndStartGameIfFull(player *chess.Player, lobby *lobbies.Lobby) {

utils/passphrase.go

@@ -36,6 +36,10 @@ func (p Passphrase) String() string {
 	return string(p)
 }
 
+func (p Passphrase) IsEmpty() bool {
+	return p.String() == ""
+}
+
 func isAccecpable(s string) bool {
 	l := len(s)
 	if l > 8 || l < 3 {