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

/// <summary>
/// 弹窗处理器 - 负责管理游戏中的弹窗队列，按顺序显示弹窗窗口
/// 避免多个窗口同时弹出造成界面混乱
/// 只有在homewin打开的情况下才触发
/// </summary>
public class PopupWindowsProcessor : SingletonMonobehaviour<PopupWindowsProcessor>
{
    // 弹窗队列，存储待处理的弹窗请求
    List<PopupWindow> popupWindowQueue = new List<PopupWindow>();
    
    // 当前正在显示的弹窗
    PopupWindow currentWindow;

    // 上次弹窗时间，用于控制弹窗之间的间隔
    float lastTime = 0; //上次弹窗时间
    
    /// <summary>
    /// 添加一个弹窗到处理队列
    /// </summary>
    /// <param name="name">窗口名称</param>
    /// <param name="functionId">功能ID，用于指定窗口的具体功能或显示模式</param>
    public void Add(string name, int functionId = 0)
    {
        var popupWindow = new PopupWindow()
        {
            window = name,
            functionId = functionId,
        };

        if (popupWindowQueue.Contains(popupWindow))
        {
            popupWindowQueue.Remove(popupWindow);
        }

        popupWindowQueue.Add(popupWindow);
    }

    /// <summary>
    /// 从处理队列中移除指定的弹窗
    /// </summary>
    /// <param name="name">窗口名称</param>
    /// <param name="functionId">功能ID</param>
    public void Remove(string name, int functionId = 0)
    {
        var popupWindow = new PopupWindow()
        {
            window = name,
            functionId = functionId,
        };

        if (popupWindowQueue.Contains(popupWindow))
        {
            popupWindowQueue.Remove(popupWindow);
        }
    }

    /// <summary>
    /// LateUpdate中处理弹窗队列，确保在所有其他逻辑处理完毕后才显示弹窗
    /// </summary>
    private void LateUpdate()
    {
        //打开窗口需要时间，不然会导致队列中的窗口全部同时打开
        if (Time.realtimeSinceStartup - lastTime < 1)
            return;

        // 检查玩家是否完成登录加载
        if (!DTC0403_tagPlayerLoginLoadOK.finishedLogin)
            return;

        // 检查是否进入游戏主场景
        if (StageManager.Instance.currentStage != StageName.Game)
        {
            return;
        }

        // 检查是否在新手引导中
        if (NewBieCenter.Instance.inGuiding)
        {
            return;
        }

        if (popupWindowQueue.Count == 0)
        {
            return;
        }

        // 检查是否正在显示Loading窗口
        if (UIManager.Instance.IsOpened<LoadingWin>())
            return;

        if (!UIManager.Instance.IsOpened<HomeWin>())
            return;


        if (UIManager.Instance.IsOpened(popupWindowQueue[0].window))
        {
            //当前模式可以打开多个相同窗口，增加防范
            return;
        }

        if (UIManager.Instance.ExistAnyFullScreenOrMaskWin(popupWindowQueue[0].window))
            return;

        if (currentWindow.window != null)
        {
            //判断上一个推送是否关闭
            UIBase ui = UIManager.Instance.GetUI(currentWindow.window);
            if (ui != null && ui.IsActive())
                return;

        }

        currentWindow = popupWindowQueue[0];
        popupWindowQueue.RemoveAt(0);
        UIManager.Instance.OpenWindow(currentWindow.window, currentWindow.functionId);
        Debug.LogFormat("推送窗口 " + currentWindow.window);

        lastTime = Time.realtimeSinceStartup;
    }

    /// <summary>
    /// 弹窗结构体，用于表示一个待处理的弹窗请求
    /// 包含窗口名称和功能ID，通过这两个字段可以唯一标识一个弹窗请求
    /// </summary>
    public struct PopupWindow
    {
        // 窗口名称
        public string window;
        
        // 功能ID，用于指定窗口的具体功能或显示模式
        public int functionId;

        public static bool operator ==(PopupWindow lhs, PopupWindow rhs)
        {
            return lhs.window == rhs.window && lhs.functionId == rhs.functionId;
        }

        public static bool operator !=(PopupWindow lhs, PopupWindow rhs)
        {
            return lhs.window != rhs.window || lhs.functionId != rhs.functionId;
        }

        // 添加GetHashCode和Equals方法以确保结构体可以正确比较
        public override bool Equals(object obj)
        {
            if (obj is PopupWindow)
            {
                PopupWindow other = (PopupWindow)obj;
                return this.window == other.window && this.functionId == other.functionId;
            }
            return false;
        }

        public override int GetHashCode()
        {
            return window.GetHashCode() ^ functionId.GetHashCode();
        }
    }

}