using UnityEngine;
using CodeJay.Enum;

public class ScorePanelScaler : MonoBehaviour
{
    private const float BASIC_SPACING = -40;

    [SerializeField] private GameObject SlotPrefab;
    [SerializeField] private GameObject NumberPrefab;
    [SerializeField] private ECardScoreType ScoreType;
    [SerializeField] private float MaxWidth;
    [SerializeField] private bool IsPlayer;

    private ScoreCardNumber _number;
    private UnityEngine.UI.HorizontalLayoutGroup _layoutGroup;

    private RectTransform _rectTransform;
    private System.Collections.Generic.List<RectTransform> _lstRTs;

    private void Awake()
    {
        _rectTransform = this.GetComponent<RectTransform>();
        _layoutGroup = this.GetComponent<UnityEngine.UI.HorizontalLayoutGroup>();
        _lstRTs = new System.Collections.Generic.List<RectTransform>();

        if (GameManager.Instance != null)
            GameManager.Event.RegistEvent(EEventType.OnDistributeCardCompletedToCenter, this.OnDistributeCardCompletedToCenter);

        if (_number == null)
        {
            _number = Instantiate(NumberPrefab, this.transform).GetComponent<ScoreCardNumber>();
            _number.Initialize(this.transform);
        }
    }

    private void OnDestroy()
    {
        if (GameManager.Instance != null)
            GameManager.Event.RemoveEvent(EEventType.OnDistributeCardCompletedToCenter, this.OnDistributeCardCompletedToCenter);
    }

    public void OnDistributeCardCompletedToCenter()
    {
        Initialize();
    }

    private void Initialize()
    {
        if (_number == null)
            _number = Instantiate(NumberPrefab, this.transform).GetComponent<ScoreCardNumber>();
        _number.Initialize(this.transform);

        for (int i = 0; i < _lstRTs.Count; i++)
        {
            if (_lstRTs[i] != null)
                Destroy(_lstRTs[i].gameObject);
        }

        _lstRTs.Clear();
    }

    public RectTransform AddCard(ECardType cardType)
    {
        RectTransform rt = null;

        for (int i = 0; i < _lstRTs.Count; i++)
        {
            if (_lstRTs[i].childCount == 0)
            {
                rt = _lstRTs[i];
                break;
            }
            else if (_lstRTs[i].childCount == 1)
            {
                if (_number != null && _number.transform.parent != null && _number.transform.parent == _lstRTs[i])
                {
                    rt = _lstRTs[i];
                    break;
                }
            }
        }

        if (rt == null)
            rt = Instantiate(SlotPrefab, this.transform).GetComponent<RectTransform>();
        _lstRTs.Add(rt);
        StartCoroutine(coroSetScaleAndChangeNumberParent());
        return rt;
    }

    public void RemoveEmptyRT()
    {
        for (int i = 0; i < _lstRTs.Count; i++)
        {
            if (_lstRTs[i].childCount == 0)
            {
                Destroy(_lstRTs[i].gameObject);
                _lstRTs.RemoveAt(i);
                break;
            }
            else if (_lstRTs[i].childCount == 1)
            {
                if (_number.transform.parent == _lstRTs[i])
                {
                    Destroy(_lstRTs[i].gameObject);
                    _lstRTs.RemoveAt(i);
                    break;
                }
            }
        }

        StartCoroutine(coroSetScaleAndChangeNumberParent());
    }

    private System.Collections.IEnumerator coroSetScaleAndChangeNumberParent()
    {
        yield return new WaitForEndOfFrame();
        yield return new WaitForEndOfFrame();

        if (_layoutGroup != null && _lstRTs.Count >= 9)
        {
            float delta = (_rectTransform.rect.width - MaxWidth) / (_lstRTs.Count - 1);
            _layoutGroup.spacing = BASIC_SPACING - delta;
        }

        if (_lstRTs.Count > 0)
        {
            if (_number == null)
                _number = Instantiate(NumberPrefab, this.transform).GetComponent<ScoreCardNumber>();

            if (_number.Enabled == false)
                _number.Enabled = true;

            if (_number.transform.parent != _lstRTs[_lstRTs.Count - 1])
            {
                _number.SetParent(_lstRTs[_lstRTs.Count - 1]);

            }

            _number.Number = GamePanel.Instance.GetScoreBoardTypeNumber(IsPlayer, ScoreType);
        }
    }
}