using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UIElements;
using UnityEngine.UI;

public class MatchesChecker : MonoBehaviour
{
    [SerializeField] private Cell[] cells;
    [SerializeField] private Cell[,] gameField;
    private List<GameObject> winGameObjects = new List<GameObject>();
    private int width = 4;
    private int height = 5;
    [SerializeField] private Transform deadPosition;
    [SerializeField] private GameObject windPartical;
   public UnityEngine.UI.Button switchButton;
    [SerializeField] private AudioSource audioSource;
    [SerializeField] private AudioClip rockClip;

    public static MatchesChecker Instance;

    private void Awake()
    {
        if (Instance == null)
            Instance = this;
    }

    private void Start()
    {
        gameField = new Cell[width, height];
        for (int i = 0; i < cells.Length; i++)
        {
            gameField[cells[i].X, cells[i].Y] = cells[i];
        }
    }

    public void ThreeInRow()
    {
        for (int i = 0; i < gameField.GetLength(0); i++)
            for (int j = 0; j < gameField.GetLength(1); j++)
                if (gameField[i, j].ItemInCell != null)
                    GetWinGameObjectThreeRow(i, j, gameField[i, j].GetComponent<Cell>().ItemInCell.gameObject);

        if (winGameObjects.Count > 0)
        {
            if (winGameObjects.Count > 3)
            {
                GameManager.Instance.SetScore(20 * winGameObjects.Count);
            }
            else
            {
                GameManager.Instance.SetScore(10 * winGameObjects.Count);
            }
        }

        foreach (var winGameObject in winGameObjects)
        {
            if (winGameObject != null)
            {
                audioSource.PlayOneShot(rockClip);
                switchButton.interactable = false;
                winGameObject.GetComponent<Item>().startDeadAnimation(deadPosition,windPartical,false);
                Destroy(winGameObject);
            }
        }

        winGameObjects.Clear();
    }
    private void GetWinGameObjectThreeRow(int x, int y, GameObject cell)
    {
        if (CheckVerticalLine(x, y))
        {
            if (!winGameObjects.Contains(cell)) winGameObjects.Add(cell);
            if (!winGameObjects.Contains(gameField[x, y + 1].GetComponent<Cell>().ItemInCell.gameObject)) winGameObjects.Add(gameField[x, y + 1].GetComponent<Cell>().ItemInCell.gameObject);
            if (!winGameObjects.Contains(gameField[x, y - 1].GetComponent<Cell>().ItemInCell.gameObject)) winGameObjects.Add(gameField[x, y - 1].GetComponent<Cell>().ItemInCell.gameObject);
        }
        if (HorizontalLine(x, y))
        {
            if (!winGameObjects.Contains(cell)) winGameObjects.Add(cell);
            if (!winGameObjects.Contains(gameField[x + 1, y].GetComponent<Cell>().ItemInCell.gameObject)) winGameObjects.Add(gameField[x + 1, y].GetComponent<Cell>().ItemInCell.gameObject);
            if (!winGameObjects.Contains(gameField[x - 1, y].GetComponent<Cell>().ItemInCell.gameObject)) winGameObjects.Add(gameField[x - 1, y].GetComponent<Cell>().ItemInCell.gameObject);
        }
    }
    private bool CheckVerticalLine(int x, int y) =>
            y + 1 < gameField.GetLength(1) && gameField[x, y + 1].ItemInCell != null && gameField[x, y + 1].GetComponent<Cell>().ItemInCell.ItemID == gameField[x, y].GetComponent<Cell>().ItemInCell.ItemID &&
            y - 1 >= 0 && gameField[x, y - 1].ItemInCell != null && gameField[x, y - 1].GetComponent<Cell>().ItemInCell.ItemID == gameField[x, y].GetComponent<Cell>().ItemInCell.ItemID;

    private bool HorizontalLine(int x, int y) =>
        x + 1 < gameField.GetLength(0) && gameField[x + 1, y].ItemInCell != null && gameField[x + 1, y].GetComponent<Cell>().ItemInCell.ItemID == gameField[x, y].GetComponent<Cell>().ItemInCell.ItemID &&
        x - 1 >= 0 && gameField[x - 1, y].ItemInCell != null && gameField[x - 1, y].GetComponent<Cell>().ItemInCell.ItemID == gameField[x, y].GetComponent<Cell>().ItemInCell.ItemID;
}