using System;
using System.Collections;
using System.Collections.Generic;
using TMPro;
using TowerDefense.Level;
using TowerDefense.Towers;
using UnityEngine;
using UnityEngine.UI;


public struct TowerLevelUp
{
    public string towerName;
    public int newLvl;
}

public class SceneTowerLvl : MonoBehaviour
{
    /// <summary>
    /// 当前的等级.
    /// </summary>
    public int currentLvl = 1;
    /// <summary>
    /// 升级需要的现金.
    /// </summary>
    public int upgradeCash = 100;

    public TextMeshProUGUI lvTextNew;
    public TextMeshProUGUI cashTextNew;
    public Image cashIcon;

    /// <summary>
    /// 是否可交互.
    /// </summary>
    public bool canInteract = true;

    /// <summary>
    /// 游戏场景内的TowerLvl升级
    /// </summary>
    public event Action<TowerLevelUp> actionSceneTowerLvlUp;

    /// <summary>
    /// 当前数据对应的场景内Tower.
    /// </summary>
    protected Tower towerData;

    /// <summary>
    /// 己方唯一的数据，定位战斗中防塔的局内等级。
    /// </summary>
    protected static Dictionary<string, int> inSceneTowerLvl = new Dictionary<string, int>();

    /// <summary>
    /// 初始化当前数据的TowerData.
    /// </summary>
    /// <param name="td"></param>
    public void SetTowerData( Tower td)
    {
        this.towerData = td;
        // 初始化局内等级数据为零.
        td.inSceneTowerLevel = 0;
        this.GetComponent<Image>().sprite = td.uiImage;
    }

    public void enableSceneTower( bool enable )
    {
        Button btn = this.GetComponent<Button>();
        if (btn)
        {
            // 所有的子结点灰掉或者恢复使用
            btn.interactable = enable;
            this.canInteract = enable;

            Color32 tc;
            if (!enable)
            {
                tc = new Color32(120, 120, 120, 255);
            } else
                tc = new Color32(255, 255, 255, 255); 
            this.lvTextNew.faceColor = tc;
            this.cashTextNew.faceColor = tc;
            this.cashIcon.color = tc;
        }
    }

    /// <summary>
    /// 根据名字获取局塔防等级。
    /// </summary>
    /// <param name="name"></param>
    /// <returns></returns>
    public static int getInSceneTowerLvl( string name,bool opponent = false )
    {
        if( !opponent)
        {
            var dic = SceneTowerLvl.inSceneTowerLvl;
            if (dic.ContainsKey(name))
                return dic[name];
        }
        else
        {
            return 0;
        }

        return 0;
    }

    /// <summary>
    /// 清空局内升级的塔防数据
    /// </summary>
    public static void clearInSceneTowerData()
    {
        inSceneTowerLvl.Clear();
    }

    /// <summary>
    /// 场景内点击某一个Tower类型并升级
    /// </summary>
    public void OnLvlUp()
    {
        this.currentLvl++;
        lvTextNew.text = "Lv:" + this.currentLvl.ToString();

        var dic = SceneTowerLvl.inSceneTowerLvl;
        if( dic.ContainsKey( towerData.towerName ))
        {
            dic[towerData.towerName] = currentLvl;
        }
        else
        {
            dic.Add(towerData.towerName, currentLvl);
        }

        // 更新全局的Cash.
        if (!LevelManager.instance.currency.TryPurchase(upgradeCash))
            return;

        // 更新当前的Cash
        this.upgradeCash += 100;
        cashTextNew.text = this.upgradeCash.ToString();

        // 安全执行升级事件.
        if ( this.actionSceneTowerLvlUp != null )
        {
            TowerLevelUp tlu;
            tlu.towerName = towerData.towerName;
            tlu.newLvl = currentLvl;
            this.actionSceneTowerLvlUp( tlu );
        }
    }

}