using AX.MessageSystem;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Xml;
using UnityEngine;
using UnityEngine.UI;

public class ReplayManager : MonoBehaviour
{
    public SecondNodeObject replayNode;
    public static ReplayStatus ReplayStatus;
    public JsonData jsonData;
    public float replayTime;
    public int frameIndex;
    public int eventIndex;
    public int tagIndex;
    private TimeLineManager timeLineManager;
    public TagManager tagManager;
    public GameObject timeLineSlider;
    public GameObject nodeDetailShow;
    public Button lessen;
    public Button add;
    public Text speed;
    public Toggle auto;
    public Button playLast;
    public Button playNext;
    public Toggle playOrPause;
    public Button playOver;
    public static int playSpeed = 1;
    // Use this for initialization
    void Start()
    {
        ReplayStatus = ReplayStatus.over;
        MessageDispatcher.AddListener("PlayStatusChanged", SetUIByPlayStatus);
        MessageDispatcher.AddListener("Replay", Replay);
        lessen.onClick.AddListener(Lesson);
        add.onClick.AddListener(Add);
        auto.onValueChanged.AddListener(Auto);
        playLast.onClick.AddListener(PlayLast);
        playNext.onClick.AddListener(PlayNext);
        playOrPause.onValueChanged.AddListener(PlayOrPause);
        playOver.onClick.AddListener(PlayOver);
        timeLineManager = timeLineSlider.GetComponent<TimeLineManager>();
        MessageDispatcher.AddListener("DisasterUpdateCompelete", ResetUI);//更新完成重置回放状态
    }
    void OnDestroy()
    {
        MessageDispatcher.RemoveListener("PlayStatusChanged", SetUIByPlayStatus);
        MessageDispatcher.RemoveListener("Replay", Replay);
        MessageDispatcher.RemoveListener("DisasterUpdateCompelete", ResetUI);//更新完成重置回放状态
    }
    private void ResetUI(IMessage obj)
    {

        ReplayStatus = ReplayStatus.over;
        playOrPause.isOn = false;
        ReplaySetting.PlayStatus = PlayStatus.normal;
        ChangeReplaySpeed = null;//回放结束清空关心回放速度的事件
        auto.isOn = false;
    }

    public static int GetNowSpeed()
    {
        return playSpeed;
    }
    /// <summary>
    /// 接收播放通知，改变按钮属性
    /// </summary>
    /// <param name="obj"></param>
    private void Replay(IMessage obj)
    {
        playOrPause.isOn = true;
    }
    /// <summary>
    /// 播放结束，显示最后数据
    /// </summary>
    private void PlayOver()
    {
        auto.isOn = false;
        ReplayStatus = ReplayStatus.over;
        playOrPause.isOn = false;
        ReplaySetting.PlayStatus = PlayStatus.normal;
        var list = jsonData.frameDataList;
        if (list.Count<1) 
        {
            return;
        }
        var frameData = list[list.Count - 1];
        MessageDispatcher.SendMessage("ClearObject");
        var dataList = frameData.objectDataList;
        foreach (var data in dataList)
        {
            MessageDispatcher.SendMessage("ReplayFrame", data);
        }
        tagManager.HideTagShow();
        MessageDispatcher.SendMessage("ReplayStatusChanged", ReplayStatus);
        //在结束播放的时候如果正在显示提示信息，结束倒计时并隐藏信息窗口
        nodeDetailShow.GetComponent<NodeDetailShow>().SetControl();// = false;
        nodeDetailShow.SetActive(false);
        
    }
    /// <summary>
    /// 播放暂停
    /// </summary>
    /// <param name="isOn"></param>
    private void PlayOrPause(bool isOn)
    {
        if (isOn)
        {
            var secondNode = SecondNodeManager.selectNode;
            if (secondNode == null)
            {
                ResourceLoadWindow.Instance.LoadTextHintWindow("请选择播放节点", 0.5f);
                playOrPause.isOn = false;
                return;
            }
            else if (secondNode == replayNode && ReplayStatus == ReplayStatus.pause)//续播
            {
                ReplayStatus = ReplayStatus.normal;
                MessageDispatcher.SendMessage("ReplayStatusChanged", ReplayStatus);
                tagManager.HideTagShow();
            }
            else//开始播放
            {
                replayNode = secondNode;
                var flag = GetJsonData();//获取节点文件数据
                if (flag)
                {
                    MessageDispatcher.SendMessage("ClearObject");
                    replayTime = 0;
                    frameIndex = 0;
                    eventIndex = 0;
                    tagIndex = 0;
                    //是否显示提示信息
                    if (string.IsNullOrEmpty(replayNode.nodeDetail))
                    {
                        Play();
                    }
                    else
                    {
                        nodeDetailShow.SetActive(true);
                        nodeDetailShow.GetComponent<NodeDetailShow>().SetUI(replayNode.nodeDetail);
                    }
                }
                else
                {
                    playOrPause.isOn = false;
                }
            }
        }
        else //暂停
        {
            if (ReplayStatus == ReplayStatus.normal)
            {
                ReplayStatus = ReplayStatus.pause;
                MessageDispatcher.SendMessage("ReplayStatusChanged", ReplayStatus);
            }
        }
    }
    /// <summary>
    /// 提示信息显示后播放
    /// </summary>
    public void Play()
    {
        ReplaySetting.PlayStatus = PlayStatus.isReplay;
        ReplayStatus = ReplayStatus.normal;
        timeLineManager.SetSlider(jsonData.sumTime, jsonData.tagDataList);
    }
    private void PlayNext()
    {
        playOrPause.isOn = false;//必须先暂停
        tagManager.HideTagShow();
        ReplayNextNode();
    }

    private void PlayLast()
    {
        playOrPause.isOn = false;//必须先暂停
        tagManager.HideTagShow();
        ReplayLastNode();
    }

    private void Auto(bool isOn)
    {

    }
    public static event Action<int> ChangeReplaySpeed;
    public static event Action<ReplayStatus> ChangeReplayStatus;
    private void Add()
    {
        int Num = int.Parse(speed.text);
        if (Num == 1)
        {
            speed.text = "2";

        }
        else if (Num == 2)
        {
            speed.text = "4";

        }
        else if (Num == 4)
        {
            speed.text = "8";
        }
        playSpeed = Num;
        GlobalVariable.ReplaySpeed = int.Parse(speed.text);
        //  MessageDispatcher.SendMessage("ReplaySpeed", GlobalVariable.ReplaySpeed);//回放速度改变事件
        if (ChangeReplaySpeed != null)
        {
            ChangeReplaySpeed(GlobalVariable.ReplaySpeed);
        }
    }

    private void Lesson()
    {
        int Num = int.Parse(speed.text);
        if (Num == 8)
        {
            speed.text = "4";

        }
        else if (Num == 4)
        {
            speed.text = "2";

        }
        else if (Num == 2)
        {
            speed.text = "1";
        }
        playSpeed = Num;
        GlobalVariable.ReplaySpeed = int.Parse(speed.text);
        // MessageDispatcher.SendMessage("ReplaySpeed", GlobalVariable.ReplaySpeed);//回放速度改变事件
        if (ChangeReplaySpeed != null)
        {
            ChangeReplaySpeed(GlobalVariable.ReplaySpeed);
        }
    }
    /// <summary>
    /// 跳转到标签位置
    /// </summary>
    /// <param name="tag"></param>
    public void MoveToTag(TagData tag)
    {
        auto.isOn = false;//自动播放关闭
        playOrPause.isOn = false;//播放暂停
        timeLineManager.UpdateSlider(tag.time);//设置时间轴
        tagManager.ShowTag(tag);//显示标签
        //设置回放索引
        var tagList = jsonData.tagDataList;
        for (int i = 0; i < tagList.Count; i++)
        {
            var tagData = tagList[i];
            if (tagData.time == tag.time)
            {
                replayTime = tag.time;//设置时间
                tagIndex = i + 1;
                break;
            }
        }
        var frameList = jsonData.frameDataList;
        for (int j = 0; j < frameList.Count; j++)
        {
            var frameData = frameList[j];
            if (frameData.time == tag.time)
            {
                MessageDispatcher.SendMessage("ClearObject");
                var dataList = frameData.objectDataList;
                foreach (var data in dataList)
                {
                    MessageDispatcher.SendMessage("ReplayFrame", data);
                }
                frameIndex = j + 1;
                break;
            }
        }
        var eventList = jsonData.eventDataList;
        for (int k = 0; k < eventList.Count; k++)
        {
            var eventData = eventList[k];
            if (eventData.time > tag.time)
            {
                eventIndex = k;
                break;
            }
        }
    }
    // Update is called once per frame
    void FixedUpdate()
    {
        if (ReplaySetting.PlayStatus == PlayStatus.isReplay && ReplayStatus == ReplayStatus.normal)
        {
            ReplayFrameData();
            ReplayEventData();
            ReplayTagData();
            timeLineManager.UpdateSlider(replayTime);
            replayTime += Time.deltaTime * int.Parse(speed.text);
        }
    }
    /// <summary>
    /// 根据游戏状态显示UI
    /// </summary>
    /// <param name="data"></param>
    private void SetUIByPlayStatus(IMessage data)
    {
        var playStatus = ReplaySetting.PlayStatus;
        if (playStatus == PlayStatus.normal)
        {
            gameObject.SetActive(true);
            timeLineSlider.SetActive(false);
        }
        else if (playStatus == PlayStatus.isEditor)
        {
            gameObject.SetActive(false);
            timeLineSlider.SetActive(false);
        }
        else if (playStatus == PlayStatus.isReplay)
        {
            gameObject.SetActive(true);
            timeLineSlider.SetActive(true);
        }
    }
    /// <summary>
    /// 获取节点数据
    /// </summary>
    /// <returns></returns>
    private bool GetJsonData()
    {
        string nodeName = replayNode.nodeName;
        string filePath = Application.dataPath + @"/Data/" + DisasterManager.disaster.Id + "/File/XmlData/" + nodeName + ".xml";
        if (File.Exists(filePath))
        {
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(filePath);
            XmlNode firstNodes = xmlDoc.SelectSingleNode("Record");
            jsonData = JsonUtility.FromJson<JsonData>(firstNodes.InnerText);
            return true;
        }
        else
        {
            ResourceLoadWindow.Instance.LoadTextHintWindow("节点数据文件不存在，无法正常播放", 1f);
            return false;
        }
    }
    /// <summary>
    /// 帧数据回放
    /// </summary>
    private void ReplayFrameData()
    {
        var list = jsonData.frameDataList;
        while (frameIndex < list.Count)
        {
            var frameData = list[frameIndex];
            if (replayTime >= frameData.time)
            {
                MessageDispatcher.SendMessage("ClearObject");
                var dataList = frameData.objectDataList;
                foreach (var data in dataList)
                {
                    MessageDispatcher.SendMessage("ReplayFrame", data);
                }
                frameIndex++;
            }
            else
                break;
        }
    }
    /// <summary>
    /// 事件回放
    /// </summary>
    private void ReplayEventData()
    {
        var list = jsonData.eventDataList;
        while (eventIndex < list.Count)
        {
            var eventData = list[eventIndex];
            if (replayTime >= eventData.time)
            {
                MessageDispatcher.SendMessage("ReplayEvent", eventData);
                eventIndex++;
            }
            else
                break;
        }
        if (replayTime > jsonData.sumTime)
        {
            ReplayStatus = ReplayStatus.over;
            nodeDetailShow.GetComponent<NodeDetailShow>().SetControl();
            playOrPause.isOn = false;
            ReplaySetting.PlayStatus = PlayStatus.normal;
            ChangeReplaySpeed = null;//回放结束清空关心回放速度的事件
            if (auto.isOn)
            {
                ReplayNextNode();
            }
        }
    }
    /// <summary>
    /// 标签回放
    /// </summary>
    private void ReplayTagData()
    {
        var list = jsonData.tagDataList;
        while (tagIndex < list.Count)
        {
            var tagData = list[tagIndex];
            if (replayTime >= tagData.time)
            {
                playOrPause.isOn = false;//暂停播放
                tagManager.ShowTag(tagData);
                tagIndex++;
            }
            else
                break;
        }
    }
    /// <summary>
    /// 播放下一节点
    /// </summary>
    private void ReplayNextNode()
    {
        var list = new List<SecondNodeObject>();
        var firstSelected = FirstNodeManager.selectNode;
        var secondNode = DisasterManager.secondNodeObjects;
        foreach (var obj in secondNode)
        {
            if (obj.ParentID == firstSelected.nodeID)
            {
                list.Add(obj);
            }
        }
        var secondIndex = list.IndexOf(SecondNodeManager.selectNode);
        if (secondIndex == -1)
        {
            return;
        }
        else if (secondIndex < list.Count - 1)
        {
            //存在未播的二级节点
            MessageDispatcher.SendMessage("ReplaySecondNode", list[secondIndex + 1].nodeID);
        }
        else if (secondIndex == list.Count - 1)
        {
            //已是最后一个二级节点，播放下一个一级节点
            var firstNode = DisasterManager.firstNodeObjects;
            var firstIndex = firstNode.IndexOf(firstSelected);
            if (firstIndex == -1)
            {
                return;
            }
            else
            {
                var nextIndex = GetNextFirstNodeIndex(firstIndex);
                if (nextIndex == -1)
                {
                    return;
                }
                else
                {
                    MessageDispatcher.SendMessage("ReplayFirstNode", firstNode[nextIndex].nodeID);
                }
            }
        }
    }
    /// <summary>
    /// 查找下一个非空一级节点的索引值，-1不存在
    /// </summary>
    /// <param name="index"></param>
    /// <returns></returns>
    private int GetNextFirstNodeIndex(int index)
    {
        var firstNode = DisasterManager.firstNodeObjects;
        if (index < firstNode.Count - 1)
        {
            //存在下一个一级节点
            var nextIndex = index + 1;
            //查找是否存在二级节点，即判断是否为空节点
            var secondNode = DisasterManager.secondNodeObjects;
            foreach (var node in secondNode)
            {
                if (node.ParentID == firstNode[nextIndex].nodeID)
                {
                    return nextIndex;
                }
            }
            return GetNextFirstNodeIndex(nextIndex);
        }
        else
        {
            //已是最后一个一级节点
            return -1;
        }
    }
    /// <summary>
    /// 播放上一节点
    /// </summary>
    private void ReplayLastNode()
    {
        var list = new List<SecondNodeObject>();
        var firstSelected = FirstNodeManager.selectNode;
        var secondNode = DisasterManager.secondNodeObjects;
        foreach (var obj in secondNode)
        {
            if (obj.ParentID == firstSelected.nodeID)
            {
                list.Add(obj);
            }
        }
        var secondIndex = list.IndexOf(SecondNodeManager.selectNode);
        if (secondIndex == -1)
        {
            return;
        }
        else if (secondIndex > 0)
        {
            //存在未播的二级节点
            MessageDispatcher.SendMessage("ReplaySecondNode", list[secondIndex - 1].nodeID);
        }
        else if (secondIndex == 0)
        {
            //已是第一个二级节点，播放上一个一级节点
            var firstNode = DisasterManager.firstNodeObjects;
            var firstIndex = firstNode.IndexOf(firstSelected);
            if (firstIndex == -1)
            {
                return;
            }
            else
            {
                var lastIndex = GetLastFirstNodeIndex(firstIndex);
                if (lastIndex == -1)
                {
                    return;
                }
                else
                {
                    MessageDispatcher.SendMessage("ReplayFirstNode", firstNode[lastIndex].nodeID);
                }
            }
        }
    }
    /// <summary>
    /// 查找上一个非空一级节点的索引值，-1不存在
    /// </summary>
    /// <param name="index"></param>
    /// <returns></returns>
    private int GetLastFirstNodeIndex(int index)
    {
        var firstNode = DisasterManager.firstNodeObjects;
        if (index > 0)
        {
            //存在上一个一级节点
            var lastIndex = index - 1;
            //查找是否存在二级节点，即判断是否为空节点
            var secondNode = DisasterManager.secondNodeObjects;
            foreach (var node in secondNode)
            {
                if (node.ParentID == firstNode[lastIndex].nodeID)
                {
                    return lastIndex;
                }
            }
            return GetLastFirstNodeIndex(lastIndex);
        }
        else
        {
            //已是第一个一级节点
            return -1;
        }
    }
}