using cfg.ShowCfg;
using Cysharp.Threading.Tasks;
using Framework;
using Gameplay;
using PhxhSDK;
using Sirenix.OdinInspector;
using SRF;
using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Playables;
using UnityEngine.Timeline;
using static ShowComponent;
using Object = UnityEngine.Object;

/// <summary>
/// 演出组件
/// </summary>
public sealed class ShowComponent : MonoBehaviour, IShow
{
    /// <summary>
    /// 当前状态
    /// </summary>
    private enum E_CurState
    {
        None = 0,
        /// <summary>
        /// 加载角色
        /// </summary>
        LoadingCharacters,
        /// <summary>
        /// 当前
        /// </summary>
        Present,
    }

    /// <summary>
    /// 被弃用的原因
    /// </summary>
    public enum E_DisposeReason
    {
        None,

        /// <summary>
        /// 演出点重复
        /// </summary>
        [LabelText("演出点重复")]
        ShowPointRepeat,

        /// <summary>
        /// 组内人数不满
        /// </summary>
        [LabelText("组内人数不满")]
        CharacterCountNotFull,

        /// <summary>
        /// 固定角色不存在
        /// </summary>
        [LabelText("固定角色不存在")]
        FixedCharacterNotExist,
    }

    #region 外部序列化字段
    /// <summary>
    /// 演出场景类型
    /// </summary>
    [LabelText("演出场景类型")]
    [SerializeField]
    private E_ShowSceneType showSceneType;

    /// <summary>
    /// 角色根节点
    /// </summary>
    [LabelText("角色根节点")]
    [SerializeField]
    private Transform tsCharacterRoot;

    /// <summary>
    /// 演出点根节点
    /// </summary>
    [LabelText("演出点根节点")]
    [SerializeField]
    private Transform tsShowPointRoot;

    /// <summary>
    /// 最大抽取角色数量
    /// </summary>
    [LabelText("最大抽取角色数")]
    [SerializeField]
    private int characterMaxCount = 20;

    /// <summary>
    /// 是否忽略看板娘
    /// </summary>
    [LabelText("是否忽略看板娘")]
    [SerializeField]
    private bool IsIgnoreKanbanban;

    /// <summary>
    /// 抽取记录
    /// </summary>
    [ReadOnly]
    [LabelText("抽取记录")]
    [SerializeField]
    [ShowIf("@listExtractRecord.Count > 0")]
    private List<ExtractRecord> listExtractRecord = new();
    #endregion

    /// <summary>
    /// 当前场景所有演出点
    /// </summary>
    private List<Transform> listShowPoint;
    /// <summary>
    /// 当前场景所有演出组字典 key:组id value:演出组数据
    /// </summary>
    private readonly Dictionary<int, ShowGroupData> dicShowGroup = new();
    /// <summary>
    /// 最终的演出点数据
    /// </summary>
    private readonly List<ShowPointResult> listShowPointResult = new();
    /// <summary>
    /// Timeline资源字典
    /// </summary>
    private readonly Dictionary<int, TimelineAsset> dicTimeLineAsset = new();
    /// <summary>
    /// 已经加载的资源集合
    /// </summary>
    private readonly HashSet<string> setAssetToUnload = new();
    /// <summary>
    /// 角色模型字典
    /// </summary>
    private readonly Dictionary<int, GameObject> dicCharacterModel = new();
    /// <summary>
    /// 当前状态
    /// </summary>
    private E_CurState currState = E_CurState.None;

    #region (刷新数据，抽取)过程临时变量
    /// <summary>
    /// 可以抽取的演出组数据(排序用)
    /// </summary>
    private readonly List<ShowGroupData> listRemindShowGroup = new();
    /// <summary>
    /// 可以抽取演出的角色数据(排序用)
    /// </summary>
    private readonly List<CharacterDataInfo> listRemindCharacter = new();
    /// <summary>
    /// 随机抽取的演出组链表
    /// </summary>
    private LinkedList<ShowGroupData> linkShowGroup;
    /// <summary>
    /// 随机抽取的角色链表
    /// </summary>
    private LinkedList<CharacterDataInfo> linkCharacter;
    /// <summary>
    /// 已经抽取的演出点索引集合
    /// </summary>
    private readonly HashSet<int> setUseShowPointIndex = new();
    /// <summary>
    /// 已经抽取的角色id
    /// </summary>
    private readonly HashSet<int> setUseCharactrtId = new();
    #endregion

    /// <summary>
    /// 可以抽取的角色最大数量
    /// </summary>
    public int CharacterMaxCount
    {
        get { return Mathf.Min(listRemindCharacter.Count, characterMaxCount, listShowPoint.Count); }
    }

    public E_ShowSceneType ShowSceneTyp
    {
        get { return showSceneType; }
    }

#if UNITY_EDITOR
    /// <summary>
    /// 演出点根节点
    /// </summary>
    public Transform TsShowPointRoot 
    {
        get { return tsShowPointRoot; }
    }
#endif

    private void Awake()
    {
        if (!CommonUtils.IsInGame())
            return;

        ShowManager.Instance.Add(this);

        currState = E_CurState.None;

        #region 初始化数据

        #region 获取演出点
        if (tsShowPointRoot == null)
            listShowPoint = new();
        else
        {
            listShowPoint = new(tsShowPointRoot.childCount);
            for (int i = 0; i < tsShowPointRoot.childCount; ++i)
            {
                listShowPoint.Add(tsShowPointRoot.GetChild(i));
            }
        }
        #endregion

        #region 获取演出组配置
        List<DataShowConfig> listShowConfig = TableManager.Instance.Tables.ShowConfig.DataList;

        foreach (DataShowConfig showConfig in listShowConfig)
        {
            if (showSceneType != showConfig.ShowSceneType)
                continue;

            int groupID = showConfig.GroupID;
            if (!dicShowGroup.TryGetValue(groupID, out ShowGroupData group))
            {
                group = new(groupID);
                dicShowGroup.Add(groupID, group);
            }

            group.Add(showConfig);
        }

        foreach (ShowGroupData group in dicShowGroup.Values)
        {
            group.Shuffle();
        }
        #endregion

        #endregion
    }

    private void OnDestroy()
    {
        foreach (string path in setAssetToUnload)
        {
            AssetManager.Instance.Unload(path);
        }
    }

    /// <summary>
    /// 刷新演出
    /// </summary>
    public async UniTask RefreshShow()
    {
        currState = E_CurState.LoadingCharacters;

        RefreshShowData();
        ExtractShowCharacter();
        await ExecuteShowResult();

        currState = E_CurState.Present;
    }

    /// <summary>
    /// 刷新演出数据
    /// </summary>
    private void RefreshShowData()
    {
        listRemindShowGroup.Clear();
        listRemindCharacter.Clear();

        listRemindShowGroup.AddRange(dicShowGroup.Values);

        #region 获取看板娘id
        int kanbanbanId = 0;
        if (IsIgnoreKanbanban)
        {
            MainPanelSceneStoreData storeData = StorageMgr.Instance.GetStorage<MainPanelSceneStoreData>("MainPanelSceneStoreData");
            if (storeData == null)
                DebugUtil.LogError("没有看板娘数据");
            else
                kanbanbanId = storeData.PosterID;
        }
        #endregion

        foreach (CharacterDataInfo characterDataInfo in CharacterDataInfoManager.Instance.DataList)
        {
            if (IsIgnoreKanbanban && characterDataInfo.Cfg.RoleID == kanbanbanId) 
                continue; // TODO 看板娘不加进可以演出的抽取列表

            listRemindCharacter.Add(characterDataInfo);
        }

        CommonUtils.Shuffle(listRemindShowGroup);
        CommonUtils.Shuffle(listRemindCharacter);

        linkShowGroup = new(listRemindShowGroup);
        linkCharacter = new(listRemindCharacter);

        #region 隐藏之前的角色模型
        foreach (GameObject go in dicCharacterModel.Values)
        {
            go.SetActive(false);
        }
        #endregion
    }

    /// <summary>
    /// 抽取演出角色
    /// </summary>
    private void ExtractShowCharacter()
    {
        listExtractRecord.Clear();
        listShowPointResult.Clear();

        List<ShowPointResult> listTempResult = new(); // 临时存放抽取的结果

        while (linkShowGroup.First != null)
        {
            ShowGroupData groupData = linkShowGroup.First.Value;
            linkShowGroup.RemoveFirst();

            // 如果组里的演出点和当前已经使用的演出点重复，则踢出该组
            if (IsShowPointExist(groupData))
            {
                listExtractRecord.Add(new ExtractRecord(groupData.GroupID, E_DisposeReason.ShowPointRepeat));
                continue;
            }

            // 如果是固定角色的组的角色已经被使用，则踢出该组
            if (!IsCanUseFixCharacter(groupData))
            {
                listExtractRecord.Add(new ExtractRecord(groupData.GroupID, E_DisposeReason.FixedCharacterNotExist));
                continue;
            }

            listTempResult.Clear();
            ExtractRecord extractRecord = new(groupData.GroupID, E_DisposeReason.None);
            foreach (DataShowConfig dataShowConfig in groupData.ListConfig)
            {
                // 如果当前没有剩余的演员，则直接跳出抽取
                if (linkCharacter.First == null)
                    break;

                // 抽取timeline
                int timelineID = CommonUtils.GetRandomItem(dataShowConfig.TimelineIDs);
                ExtractRecord.SinglePointRecord singlePointRecord = new()
                {
                    timelineID = timelineID
                };
                extractRecord.Add(singlePointRecord);

                if (timelineID == 0) // 说明不站人
                    continue;

                #region 角色抽取
                CharacterDataInfo characterDataInfo = null;
                if (ValueValidator.IsIdValid(dataShowConfig.CharacterID)) // 抽取指定演员
                {
                    foreach (CharacterDataInfo character in linkCharacter)
                    {
                        if ((int)character.ID == dataShowConfig.CharacterID)
                        {
                            characterDataInfo = character;
                            break;
                        }
                    }

                    if (characterDataInfo == null)
                        continue;
                    else
                        linkCharacter.Remove(characterDataInfo);
                }
                else
                {
                    characterDataInfo = linkCharacter.First.Value;
                    linkCharacter.RemoveFirst();
                }
                #endregion

                ShowPointResult result = new(groupData.GroupID, dataShowConfig.PointID, timelineID, characterDataInfo);

                singlePointRecord.showPoint = dataShowConfig.PointID;
                singlePointRecord.characterID = characterDataInfo.ID;
                listTempResult.Add(result);
            }

            if (groupData.IsMustHasCharacter && listTempResult.Count < groupData.ListConfig.Count)
            {
                // 如果该组必须满员但没满员
                // 取出来的CharacterDataInfo归还
                foreach (ShowPointResult result in listTempResult)
                {
                    listRemindCharacter.Add(result.CharacterData);
                }

                listExtractRecord.Add(new ExtractRecord(groupData.GroupID, E_DisposeReason.CharacterCountNotFull));
            }
            else // 添加到最后的result列表中
            {
                foreach (ShowPointResult result in listTempResult)
                {
                    listShowPointResult.Add(result);
                    setUseCharactrtId.Add((int)result.CharacterData.ID);
                    setUseShowPointIndex.Add(result.ShowPointIndex);
                }
            }
        }

        setUseShowPointIndex.Clear();
        setUseCharactrtId.Clear();
    }

    /// <summary>
    /// 执行演出结果
    /// </summary>
    private async UniTask ExecuteShowResult()
    {
        if (listShowPointResult.Count == 0)
            return;

        foreach (ShowPointResult result in listShowPointResult)
        {
            int showPointIndex = result.ShowPointIndex;
            if (showPointIndex < 0 || showPointIndex >= listShowPoint.Count || listShowPoint[showPointIndex] == null)
            {
                DebugUtil.LogError($"找不到演出点！演出点索引:{showPointIndex}");
                continue;
            }

            Transform tsShowPoint = listShowPoint[showPointIndex].transform;

            GameObject goModel = await GetModel(result.CharacterData);
            if (goModel == null)
                continue;

            goModel.SetActive(true);
            goModel.transform.SetPositionAndRotation(tsShowPoint.position, tsShowPoint.rotation);

            TimelineAsset timelineAsset = await GetTimeLineAsset(result.TimelineID);
            if (timelineAsset == null)
                continue;

            if (!goModel.TryGetComponent(out PlayableDirector director))
            {
                DebugUtil.LogError($"{goModel.name}未绑定PlayableDirector组件");
                continue;
            }

            director.playableAsset = timelineAsset;
            director.extrapolationMode = DirectorWrapMode.Loop;
            foreach (PlayableBinding playableBinding in timelineAsset.outputs)
            {
                director.SetGenericBinding(playableBinding.sourceObject, goModel.GetComponentInChildren<Animator>());
            }

            director.Play();
        }
    }

    /// <summary>
    /// 异步加载资源
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="path"></param>
    /// <returns></returns>
    private async UniTask<T> LoadAssetAsync<T>(string path) where T : Object
    {
        T res = await AssetManager.Instance.LoadAssetAsync<T>(path);
        if (res != null)
            setAssetToUnload.Add(path);

        return res;
    }

    /// <summary>
    /// 获取角色模型
    /// </summary>
    /// <param name="characterDataInfo"></param>
    /// <returns></returns>
    private async UniTask<GameObject> GetModel(CharacterDataInfo characterDataInfo)
    {
        if (!dicCharacterModel.TryGetValue(characterDataInfo.Cfg.RoleID, out GameObject goModel))
        {
            string prefabPath = characterDataInfo.PrefabPath;
            goModel = await LoadAssetAsync<GameObject>(prefabPath);
            if (goModel == null)
            {
                DebugUtil.LogError($"找不到模型, path:{prefabPath}");
                return null;
            }

            goModel = Instantiate(goModel, tsCharacterRoot);
            goModel.GetComponentOrAdd<PlayableDirector>();
            goModel.SetLayerEx(Framework.Constants.Layer.UIVIEW);
            dicCharacterModel.Add(characterDataInfo.Cfg.RoleID, goModel);
        }

        return goModel;
    }

    /// <summary>
    /// 获取Timeline资源
    /// </summary>
    /// <param name="timelineID"></param>
    /// <returns></returns>
    private async UniTask<TimelineAsset> GetTimeLineAsset(int timelineID)
    {
        if (!dicTimeLineAsset.TryGetValue(timelineID, out TimelineAsset timelineAsset))
        {
            string timelinePath = CampTimeLineCollector.Instance[showSceneType, timelineID];
            if (string.IsNullOrWhiteSpace(timelinePath))
            {
                DebugUtil.LogError($"找不到timelinePath,id:{timelineID}");
                return null;
            }

            timelineAsset = await LoadAssetAsync<TimelineAsset>(timelinePath);
            if (timelineAsset == null)
            {
                DebugUtil.LogError($"找不到TimelineAsset, timelineID:{timelineID}  path:{timelinePath}");
                return null;
            }

            dicTimeLineAsset.Add(timelineID, timelineAsset);
        }

        return timelineAsset;
    }

    /// <summary>
    /// 演出点是否重复
    /// </summary>
    /// <param name="group"></param>
    /// <returns></returns>
    private bool IsShowPointExist(ShowGroupData group)
    {
        foreach (DataShowConfig showConfig in group.ListConfig)
        {
            if (setUseShowPointIndex.Contains(showConfig.PointID))
                return true;
        }

        return false;
    }

    /// <summary>
    /// 是否可以使用限定角色
    /// </summary>
    /// <param name="group"></param>
    /// <returns></returns>
    private bool IsCanUseFixCharacter(ShowGroupData group)
    {
        foreach(DataShowConfig showConfig in group.ListConfig)
        {
            if (!ValueValidator.IsIdValid(showConfig.CharacterID) && !IsCanUseCharacter(showConfig.CharacterID))
                return false;
        }

        return true;
    }

    /// <summary>
    /// 角色是否可用
    /// </summary>
    /// <param name="characterId"></param>
    /// <returns></returns>
    private bool IsCanUseCharacter(int characterId)
    {
        return !setUseCharactrtId.Contains(characterId);
    }

    /// <summary>
    /// 获取进度
    /// </summary>
    /// <returns>0f-1f</returns>
    public float GetRefreshProcess()
    {
        return currState switch
        {
            E_CurState.None => 0f,
            E_CurState.LoadingCharacters => (float)listShowPointResult.Count / CharacterMaxCount,
            E_CurState.Present => 1f,
            _ => 0f,
        };
    }
}

/// <summary>
/// 抽取流程的记录
/// </summary>
[Serializable]
public struct ExtractRecord
{
    /// <summary>
    /// 单个演出点记录
    /// </summary>
    [Serializable]
    public struct SinglePointRecord
    {
        [LabelText("演出点ID")]
        public int showPoint;

        public int timelineID;

        public uint characterID;
    }

    [LabelText("组ID")]
    private int groupID;

    [LabelText("抛弃原因")]
    [ShowIf("isDispose")]
    private E_DisposeReason disposeReason;

    [LabelText("角色记录")]
    private List<SinglePointRecord> listRecord;

    public ExtractRecord(int groupID, E_DisposeReason disposeReason)
    {
        this.groupID = groupID;
        this.disposeReason = disposeReason;

        listRecord = new();
    }

    public readonly void Add(SinglePointRecord singlePointRecord)
    {
        listRecord.Add(singlePointRecord);
    }
}

/// <summary>
/// 演出组数据
/// </summary>
public struct ShowGroupData
{
    /// <summary>
    /// 演出组id
    /// </summary>
    private readonly int groupId;
    /// <summary>
    /// 是否必须有角色
    /// </summary>
    private bool isMustHasCharacter;
    /// <summary>
    /// 该组演出点配置数据
    /// </summary>
    private readonly List<DataShowConfig> listConfig;

    /// <summary>
    /// 演出组id
    /// </summary>
    public readonly int GroupID
    {
        get { return groupId; }
    }

    /// <summary>
    /// 是否必须有角色
    /// </summary>
    public readonly bool IsMustHasCharacter { get { return isMustHasCharacter; } }

    /// <summary>
    /// 该组演出点配置数据
    /// </summary>
    public readonly List<DataShowConfig> ListConfig
    {
        get { return listConfig; }
    }

    public ShowGroupData(int groupId)
    {
        this.groupId = groupId;

        isMustHasCharacter = false;
        listConfig = new();
    }

    public void Add(DataShowConfig dataShowConfig)
    {
        isMustHasCharacter |= dataShowConfig.HasCharacter;
        listConfig.Add(dataShowConfig);
    }

    /// <summary>
    /// 打乱顺序
    /// </summary>
    public readonly void Shuffle()
    {
        CommonUtils.Shuffle(listConfig);
    }
}

/// <summary>
/// 演出点结果
/// </summary>
public readonly struct ShowPointResult
{
    /// <summary>
    /// 演出组id
    /// </summary>
    private readonly int groupID;
    /// <summary>
    /// 演出点索引
    /// </summary>
    private readonly int showPointIndex;
    /// <summary>
    /// Timelineid
    /// </summary>
    private readonly int timelineID;
    /// <summary>
    /// 角色数据
    /// </summary>
    private readonly CharacterDataInfo characterData;

    public int GroupID
    {
        get { return groupID; }
    }

    public int ShowPointIndex
    {
        get { return showPointIndex; }
    }

    public int TimelineID
    {
        get { return timelineID; }
    }

    public CharacterDataInfo CharacterData
    {
        get { return characterData; }
    }

    public ShowPointResult(int groupID, int showPointIndex, int timelineID, CharacterDataInfo characterData)
    {
        this.groupID = groupID;
        this.showPointIndex = showPointIndex;
        this.timelineID = timelineID;
        this.characterData = characterData;
    }
}