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

public class LeaderboardManager : MonoBehaviour
{
    public static LeaderboardManager Instance { get; private set; }

    [SerializeField] private GameObject playersParent; // The parent GameObject that holds the player icons
    [SerializeField] private GameObject playerPrefab; // The prefab for the player icon

    private Dictionary<GameObject, GameObject> playerIcons = new Dictionary<GameObject, GameObject>();

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

    private void Start()
    {
        InitializeLeaderboard();
    }

    private void InitializeLeaderboard()
    {
        foreach (GameObject player in GameManager.players)
        {
            GameObject playerIcon = Instantiate(playerPrefab, playersParent.transform);
            playerIcon.GetComponentInChildren<Text>().text = player.name;
            playerIcon.GetComponentInChildren<Image>().color = GameManager.playerColors[GameManager.players.IndexOf(player)];
            playerIcons[player] = playerIcon;
        }
    }

    public void UpdateLeaderboard()
    {
        List<KeyValuePair<GameObject, float>> sortedList =
            new List<KeyValuePair<GameObject, float>>(GameManager.playerHoldTimes);
        sortedList.Sort((pair1, pair2) => pair2.Value.CompareTo(pair1.Value));

        foreach (var player in sortedList)
        {
            playerIcons[player.Key].transform.SetSiblingIndex(sortedList.IndexOf(player));
        }
    }
}