using UnityEngine;

public class ClearFieldState : IState
{
    const int FIELD_HEIGHT = 6;
    const int FIELD_WIDTH = 7;
    const string SORTLAYER_BACKGROUND = "Background";

    const float EXPLOSION_FORCE = 30;
    readonly Vector3 EXPLOSION_ORIGIN = new Vector3(0, -2, -5);
    const float EXPLOSION_RADIUS = 50;

    const float TIME_TO_DESTROY = 5;

    Transform[,] field;

    bool toMenu; 
    CellState firstPlayer;

    //передаем переходим мы в меню или нет. Если нет, то переход отсюда в новый раунд
    //Надо еще сделать в конструкторе чтобы nextState указывать а то ж непонятно вообще
    public ClearFieldState(bool toMenu, CellState firstPlayer)
    {
        this.toMenu = toMenu;
        this.firstPlayer = firstPlayer;
    }

    public void enter()
    {
        field = GameManager.instance.chipTransforms;

        SoundManager.instance.playExplosion();

        Explode();

        //переход
        if (toMenu)
            GameManager.instance.stateMachine.ChangeState(new MenuState(fromGameplay: true));
        else
        {
            //Фишка ходит первой если ее не побеждали сегодня еще

            bool goingToLastBot = DifficultyManager.instance.currentOpponent == GameManager.instance.botsAmount - 1;
            
            if (goingToLastBot)
            {
                //bool bossUpgraded = GameManager.instance.BossUpgraded;
                bool bossFirst = SettingsManager.GetString("BaseBotDifficulty", "Фиксированная") != "Обычная";
                CellState firstRoundPlayer = bossFirst ? CellState.Player2 : CellState.Player1;
                GameManager.instance.stateMachine.ChangeState(new StartRoundState(firstPlayer: firstRoundPlayer));
                return;
            }


            GameManager.instance.stateMachine.ChangeState(new StartRoundState(firstPlayer: firstPlayer));
        }
        return;

    }

    private void Explode()
    {
        for (int i = 0; i < FIELD_HEIGHT; i++)
        {
            for (int j = 0; j < FIELD_WIDTH; j++)
            {
                Transform chipTransform = field[i, j];
                if (chipTransform != null)
                {
                    Rigidbody rb = chipTransform.GetComponent<Rigidbody>();
                    rb.isKinematic = false;
                    rb.AddExplosionForce(EXPLOSION_FORCE, EXPLOSION_ORIGIN, EXPLOSION_RADIUS, upwardsModifier: 1, ForceMode.Impulse);

                    chipTransform.GetComponent<TrailRenderer>().sortingLayerName = SORTLAYER_BACKGROUND;
                    chipTransform.GetChild(0).GetComponent<SpriteRenderer>().sortingLayerName = SORTLAYER_BACKGROUND;
                    Object.Destroy(chipTransform.gameObject, TIME_TO_DESTROY+Random.Range(-1f,1f));//чтобы уничтожались не одновременно
                }
            }
        }
    }

    public void exit()
    {
        if (GameManager.instance.currentChip != null)
        {
            Object.Destroy(GameManager.instance.currentChip);
        }
        GameManager.fieldModel.makeEmptyField(width: FIELD_WIDTH, height: FIELD_HEIGHT);
        GameManager.instance.chipTransforms = new Transform[FIELD_HEIGHT, FIELD_WIDTH];
    }

    public void update(){ }
    
}