using System;
using Player.Wallet;
using TMPro;
using UnityEngine;

public class UpgradeUI : MonoBehaviour
{
  // 升级价格显示文本数组
  [SerializeField] private TextMeshProUGUI[] upgradePriceDisplayText;
  // 升级等级显示文本数组
  [SerializeField] private TextMeshProUGUI[] levelDisplayText;
  // 升级音效
  [SerializeField] private AudioSource upgradeAudioSource;
  // 玩家升级数据（0:战士数量 1:弓箭手数量 2:战士等级 3:弓箭手等级）
  private int[] _playerUpgradesLevel = new int[4];

  // 钱包引用
  private Wallet _wallet;

  /// <summary>
  /// 初始化升级数据和UI，首次启动时设置默认值
  /// </summary>
  private void Awake()
  {
      if (PlayerPrefs.GetInt("_playerWarriorLevel") == 0)
    {
        // 如果是新游戏，设置初始值
        PlayerPrefs.SetInt("_playerWarriorLevel", 3); // 增加初始战士数量
        PlayerPrefs.SetInt("_playerArcherLevel", 2); // 增加初始弓箭手数量
        PlayerPrefs.SetInt("_playerUpgradeWarriorLevel", 2); // 增加初始战士等级
        PlayerPrefs.SetInt("_playerUpgradeArcherLevel", 2); // 增加初始弓箭手等级
    }
    _playerUpgradesLevel[0] = PlayerPrefs.GetInt("_playerWarriorLevel");
    _playerUpgradesLevel[1] = PlayerPrefs.GetInt("_playerArcherLevel");
    _playerUpgradesLevel[2] = PlayerPrefs.GetInt("_playerUpgradeWarriorLevel");
    _playerUpgradesLevel[3] = PlayerPrefs.GetInt("_playerUpgradeArcherLevel");

    _wallet = FindObjectOfType<Wallet>();

    UpdateText();
  }

  /// <summary>
  /// 购买新战士，消耗金币并增加数量
  /// </summary>
  public void BuyWarrior()
  {
    if (_wallet.GetMoney >= GetPrice(0))
    {
      _wallet.UseMoney(GetPrice(0));
      _playerUpgradesLevel[0]++;
      ComponentsManager.PlayerArmyManager.AddNewWarrior();
      SaveDatas();
      UpdateText();
    }
  }

  /// <summary>
  /// 购买新弓箭手，消耗金币并增加数量
  /// </summary>
  public void BuyArcher()
  {
    if (_wallet.GetMoney >= GetPrice(1))
    {
      _wallet.UseMoney(GetPrice(1));
      _playerUpgradesLevel[1]++;
      ComponentsManager.PlayerArmyManager.AddNewArcher();
      SaveDatas();
      UpdateText();

      if (ComponentsManager.Tutorial)
      {
        if (ComponentsManager.Tutorial.GetStep == 1)
          ComponentsManager.Tutorial.NextStep(2, true);
      }
    }

    else
    {
        // 金币不足时，直接关闭引导动画
        if (ComponentsManager.Tutorial)
        {
            ComponentsManager.Tutorial.ForceHidePointerAndUnlock();
        }
    }
  }

  /// <summary>
  /// 升级所有战士等级，消耗金币并重置玩家单位
  /// </summary>
  public void UpgradeWarriors()
  {
     if (_wallet.GetMoney >= GetPrice(2))
     {
        _wallet.UseMoney(GetPrice(2));
        _playerUpgradesLevel[2]++;
        ComponentsManager.PlayerArmyManager.ResetPlayerWarriors();

        SaveDatas();
        UpdateText();
     }
  }

  /// <summary>
  /// 升级所有弓箭手等级，消耗金币并重置玩家单位
  /// </summary>
  public void UpgradeArchers()
  {
    if (_wallet.GetMoney >= GetPrice(3))
    {
         _wallet.UseMoney(GetPrice(3));
        _playerUpgradesLevel[3]++;
        ComponentsManager.PlayerArmyManager.ResetPlayerWarriors();

        SaveDatas();
         UpdateText();

    if (ComponentsManager.Tutorial)
    {
      if (ComponentsManager.Tutorial.GetStep == 3)
        ComponentsManager.Tutorial.NextStep(4, true);
    }
    }
  }

  /// <summary>
  /// 获取当前战士升级等级
  /// </summary>
  public int GetWarriorLevelUpgrade()
  {
    return _playerUpgradesLevel[2];
  }

  /// <summary>
  /// 获取当前弓箭手升级等级
  /// </summary>
  public int GetArcherLevelUpgrade()
  {
    return _playerUpgradesLevel[3];
  }

  /// <summary>
  /// 计算升级价格
  /// </summary>
  /// <param name="id">升级类型索引</param>
  /// <returns>升级所需金币</returns>
  private int GetPrice(int id)
  {
    return (int) (GameBalance.UpgradeBase[id].BasePrice *
                  Math.Pow(GameBalance.UpgradeBase[id].BasePriceCoefficient, _playerUpgradesLevel[id]));
  }

  /// <summary>
  /// 刷新升级价格和等级文本
  /// </summary>
  private void UpdateText()
  {
    for (int i = 0; i < upgradePriceDisplayText.Length; i++)
    {
      upgradePriceDisplayText[i].SetText(GetPrice(i).ToString());
      levelDisplayText[i].SetText((_playerUpgradesLevel[i] + 1).ToString());
    }

    levelDisplayText[0].SetText((_playerUpgradesLevel[0] + 2).ToString());
    levelDisplayText[1].SetText((_playerUpgradesLevel[1]).ToString());
  }

  /// <summary>
  /// 保存升级数据到本地存档，并播放音效
  /// </summary>
  private void SaveDatas()
  {
    PlayerPrefs.SetInt("_playerWarriorLevel", _playerUpgradesLevel[0]);
    PlayerPrefs.SetInt("_playerArcherLevel", _playerUpgradesLevel[1]);
    PlayerPrefs.SetInt("_playerUpgradeWarriorLevel", _playerUpgradesLevel[2]);
    PlayerPrefs.SetInt("_playerUpgradeArcherLevel", _playerUpgradesLevel[3]);
    upgradeAudioSource.Play();
  }
}