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

public class DynamicLeaderboard : MonoBehaviour, ITextChangable
{
    private ScoreController _scoreController;

    public UnityEvent<object> OnTextChange => _OnTextChange;
    private UnityEvent<object> _OnTextChange = new UnityEvent<object>();

    [SerializeField]
    private RectTransform _content;
    [SerializeField]
    private LeaderboardEntry _leaderboardEntryPrefab;

    private List<LeaderboardEntry> _entries = new List<LeaderboardEntry>();

    [SerializeField]
    private int _abovePlayersCount = 6;
    [SerializeField]
    private int _totalPlayersCount = 10;


    private void Awake()
    {
        _scoreController = FindObjectOfType<ScoreController>();
    }

    private void OnEnable()
    {
        _scoreController.OnScoreChange += OnScoreChange;
    }

    private void OnDisable()
    {
        _scoreController.OnScoreChange -= OnScoreChange;
    }


    private void OnScoreChange(float value)
    {
        Debug.Log("Refactor leaderboard");
        Debug.Log($"New player {value}");

        UpdateLeaderboard();
    }

    [ContextMenu("Debug Update LB")]
    private void UpdateLeaderboard()
    {
        _entries.ForEach(x => Destroy(x.gameObject));
        _entries.Clear();
        _entries = new List<LeaderboardEntry>();
        Debug.Log("Tst");

        var sortedList = PlayerSetup.Instance.PlayerInfo.Players.OrderByDescending(x => x.Score).ToList();

        int indexOfOutPlayer = sortedList.IndexOf(PlayerSetup.Instance.CurrentPlayer);

        int startIndex = Mathf.Clamp(indexOfOutPlayer - _abovePlayersCount, 0, sortedList.Count);
        int lastIndex = Mathf.Clamp(startIndex + _totalPlayersCount, 0, sortedList.Count);

        for (int i = startIndex; i < lastIndex; i++)
        {
            var newEntry = Instantiate(_leaderboardEntryPrefab, _content);
            _entries.Add(newEntry);
            newEntry.Init(sortedList[i], i, i == indexOfOutPlayer);
        }

        _OnTextChange?.Invoke(indexOfOutPlayer + 1);
    }
}