using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.Serialization;

public class CardsSpawner : MonoBehaviour
{
    [SerializeField] private PresetCards _presetCards = null;
    [SerializeField] private Card _cardPrefub = null;
    [SerializeField] private UnityEvent _startCollect = new UnityEvent();
    [FormerlySerializedAs("_grid")] [SerializeField] private Grid_Script gridScript = null;
    [SerializeField] private LevelData _levelData = null;  // Для чтения MaxPlayCards

    public void Spawn()
    {
        // Очистка старых карт
        foreach (Transform child in transform)
        {
            Destroy(child.gameObject);
        }

        Transform localTransform = transform;
        Card card;
        Sprite backSprite = _presetCards.GetBackSprite();

        int uniqueCards = _levelData.MaxPlayCards;  // 4,6,8
        _presetCards.SetCardMax(uniqueCards);

        List<Sprite> playCardsSprites = _presetCards.GetPlayCardsSprites();

        // Полный shuffled список индексов (2 копии)
        List<int> allIndices = new List<int>();
        for (int k = 0; k < 2; k++)
        {
            int[] oneSet = _presetCards.GetCardIndex();
            allIndices.AddRange(oneSet);
        }
        for (int i = 0; i < allIndices.Count; i++)
        {
            int temp = allIndices[i];
            int rnd = Random.Range(0, allIndices.Count);
            allIndices[i] = allIndices[rnd];
            allIndices[rnd] = temp;
        }

        float scale = gridScript.GetScale();
        float offsetX = Grid_Script.OffsetX * scale;
        float offsetsY = gridScript.OffsetsY * scale;
        float positionXStart = gridScript.GetPositionX() * scale + localTransform.position.x;
        float positionY = gridScript.GetPositionY() * scale + localTransform.position.y;  // Старт верхнего ряда

        int rows = gridScript.GetRows();  // 2
        int columns = gridScript.GetColumnsCount();  // 4,6,8
        int indexCounter = 0;

        for (int row = 0; row < rows; row++)
        {
            float positionX = positionXStart;
            for (int col = 0; col < columns; col++)
            {
                if (indexCounter >= allIndices.Count) break;

                card = Instantiate(_cardPrefub, new Vector3(positionX, positionY, 0), Quaternion.identity);
                card.transform.parent = localTransform;
                card.transform.localScale = Vector3.one * scale;
                card.CardSettings(backSprite, playCardsSprites[allIndices[indexCounter]], allIndices[indexCounter]);
                positionX += offsetX;
                indexCounter++;
            }
            positionY -= offsetsY;  // Переход к нижнему ряду
        }
        _startCollect.Invoke();
    }
}