public class MenuState : IState
{
    private GameManager gm;
    private HoldTimer promoTimer;
    private HoldTimer settingsTimer;
    private MenuSubStates subState;

    public void enter()
    {
        gm = GameManager.instance;
        gm.ResetGameSession();

        subState = MenuSubStates.InputPolling;

        promoTimer = new(180f);
        settingsTimer = new(3f);

        LightUtility.Idle();
    }

    public void exit()
    {
        promoTimer.Reset();
        settingsTimer.Reset();
    }

    public void update()
    {
        if (subState == MenuSubStates.InputPolling)
            InputPolling();
        else if (subState == MenuSubStates.WaitAnimation)
            WaitAnimation();
    }

    private void InputPolling()//основное состояние(выбор)
    {
        //if (ui.AnimationInProcess) return;

        if (HandleSettings()) return;
        if (HandleGameStart()) return;
        if (HandleRules()) return;
        if (HandleLeaderboard()) return;
        if (HandlePromo()) return;
    }

    private bool HandleSettings()
    {
        bool settingButtonPressed = In.GetButton(InSignal.secret);
        bool gotoSettings = UnityEngine.Input.GetKeyDown(UnityEngine.KeyCode.F5) || settingsTimer.Update(settingButtonPressed);
        if (gotoSettings)
        {
            TransitionTo(new CheckSettingsPasswordState());
            return true;
        }
        return false;
    }

    private bool HandleGameStart() => TrySelectGameMode(out var mode) && TryStartGame(mode);

    private bool HandleRules()
    {
        if (In.GetButtonDownAnyPlayer(PlayerAction.down))
        {
            TransitionTo(new RulesState());
            return true;
        }
        return false;
    }

    private bool HandleLeaderboard()
    {
        bool gotoLeaderboard = In.GetButtonDownAnyPlayer(PlayerAction.left) && In.GetButtonDownAnyPlayer(PlayerAction.right);
        if (gotoLeaderboard)
        {
            TransitionTo(new CheckLeadersFromMenuState());
            return true;
        }
        return false;
    }

    private bool HandlePromo()
    {
        if (promoTimer.Update(!In.AnyButton()))
        {
            TransitionTo(new PromoState(), playSound: false);
            return true;
        }
        return false;
    }

    private bool TrySelectGameMode(out GameMode mode)
    {
        mode = GameMode.pve;

        if (In.GetButtonDown(InSignal.startOnePlayer))
            mode = GameMode.pve;
        else if (In.GetButtonDown(InSignal.startTwoPlayers))
            mode = GameMode.pvp;
        else
            return false;

        return true;
    }

    private bool TryStartGame(GameMode mode)
    {
        if (!PaymentSystem.TryPayForMode(mode)) return false;

        gm.SetMode(mode);
        gm.timerManager.SetTimersActivity(gm.gameMode);
        //ui.CloseMenu();
        //gm.InitVictoryScales();

        subState = MenuSubStates.WaitAnimation;
        return true;
    }

    private void WaitAnimation()
    {
        //if (ui.AnimationInProcess) return;

        CharactersController.ResetState();
        SoundManager.instance.playChoose();
        gm.PrepareRound(CellState.Player1);

        //if (gm.gameMode == GameMode.pve)
        //    gm.movesAndTimeCounter.SetVisibility(true);
    }

    private void TransitionTo(IState state, bool playSound = true)
    {
        if (playSound) SoundManager.instance.playChoose();
        gm.stateMachine.ChangeState(state);
    }

    private enum MenuSubStates { InputPolling, WaitAnimation }
}