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>();

        var sortedList = PlayerSetup.Instance.AllPlayers.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(indexOfOutPlayer + 3, 0, sortedList.Count);

        int tmpCounter = 0;

        for (int i = 0; i < sortedList.Count && tmpCounter <= 9; i++)
        {
            if (i >= 5 && i < indexOfOutPlayer)
            {
                continue;
            }
            tmpCounter++;

            var newEntry = Instantiate(_leaderboardEntryPrefab, _content);
            _entries.Add(newEntry);
            newEntry.Init(sortedList[i], i, sortedList[i] == PlayerSetup.Instance.CurrentPlayer);
        }

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