using cfg.GuideCfg;
using Framework;
using Gameplay.SubSystems;
using Gameplay;
using PhxhSDK;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Cysharp.Threading.Tasks;

/// <summary>
/// 新手引导管理器
/// </summary>
public class GuideManager : Singlenton<GuideManager>, IInitable
{
    /// <summary>
    /// 新手引导配置字典，key：引导组，Value：引导步骤配置链表
    /// </summary>
    private Dictionary<int, LinkedList<DataGuideCfg>> dicGuideCfg;
    /// <summary>
    /// 当前的引导组
    /// </summary>
    private GuideGroup curGroup;

    /// <summary>
    /// 当前已完成引导步骤id(测试用)
    /// </summary>
    private int completeId = 0;

    /// <summary>
    /// 是否启用新手引导
    /// </summary>
    public bool IsEnable = false;

    /// <summary>
    /// 是否引导中
    /// </summary>
    public bool IsGuiding
    { 
        get { return curGroup != null && curGroup.IsGuiding; }
    }

    public void Init()
    {
        EventManager.Instance.Register(EventManager.EventName.AllConfigLoad, InitData);
    }

    public void Release()
    {
        EventManager.Instance.Unregister(EventManager.EventName.AllConfigLoad, InitData);
    }

    /// <summary>
    /// 开始引导
    /// </summary>
    public bool BeginGuide()
    {
        if (!IsEnable)
            return false;

        if (IsGuiding)
            return false;

        foreach (var guide in dicGuideCfg)
        {
            if (guide.Key > completeId)
            {
                curGroup = new(guide.Key, guide.Value); // TODO 测试
                curGroup.BeginGuide();
                return true;
            }
        }

        return false;
    }

    /// <summary>
    /// 完成指定引导步骤
    /// </summary>
    /// <param name="step"></param>
    public void CompleteStep(GuideStepBase step)
    {
        if (null == curGroup)
            return;

        if (step != curGroup.CurStep)
        {
            DebugUtil.LogError("要完成的引导步骤不是当前步骤");
            EndGuide(true);

            return;
        }

        if (curGroup.IsComplete)
        {
            completeId = curGroup.GroupId;

            // TODO 完成引导组,保存服务器
            int nextGroupId = curGroup.NextGroupId;
            if (dicGuideCfg.TryGetValue(nextGroupId, out LinkedList<DataGuideCfg> linkCfg))
            {
                curGroup = new(nextGroupId, linkCfg);
                curGroup.BeginGuide();
            }
            else
                EndGuide(false);
        }
        else
            curGroup.BeginNextStep();
    }

    /// <summary>
    /// 结束引导
    /// </summary>
    private void EndGuide(bool isReEnterMain)
    {
        if (IsGuiding)
            curGroup.EndGuide();

        curGroup = null;
        UIManager.Instance.CloseWindow(UINameConst.UI_Guide);
        UIManager.Instance.CloseWindow(UINameConst.UI_GuideTip);

        if (isReEnterMain)
            LoadingExecutorManager.Instance.ExecuteLoading(new MainSceneLoadingExecutor()).Forget();
    }

    /// <summary>
    /// 初始化数据
    /// </summary>
    private void InitData()
    {
        dicGuideCfg = new();

        foreach (DataGuideCfg cfg in TableManager.Instance.Tables.GuideConfig.DataList)
        {
            if (dicGuideCfg.ContainsKey(cfg.GroupId) && !IsFirstStep(cfg))
                continue;

            DataGuideCfg addCfg = cfg; // 记录要添加进链表的引导步骤配置
            int groudId = cfg.GroupId;
            LinkedList<DataGuideCfg> linkCfg = new();
            dicGuideCfg[groudId] = linkCfg;

            while (null != addCfg && addCfg.GroupId == groudId)
            {
                linkCfg.AddLast(addCfg);
                addCfg = TableManager.Instance.Tables.GuideConfig.Get(addCfg.NextId);
            }
        }

        #region 检验每个引导组的步骤顺序是否正常
        foreach (LinkedList<DataGuideCfg> linkCfg in dicGuideCfg.Values)
        {
            DataGuideCfg preCfg = null;
            foreach (DataGuideCfg cfg in linkCfg)
            {
                if (null == preCfg)
                {
                    preCfg = cfg;
                    continue;
                }

                if (preCfg.NextId != cfg.Id)
                {
                    Debug.LogError($"新手引导配置出错，组id:{cfg.GroupId}, 当前步骤id:{preCfg.Id}, 实际下一步步骤id：{preCfg.NextId}, 当前下一步步骤id：{cfg.Id}");
                    IsEnable = false;
                    return;
                }
                else
                    preCfg = cfg;
            }
        }
        #endregion
    }

    /// <summary>
    /// 是否是引导组的第一步
    /// </summary>
    /// <returns></returns>
    private bool IsFirstStep(DataGuideCfg dataGuideCfg)
    {
        return dataGuideCfg.Id == dataGuideCfg.GroupId;
    }
}