using cfg.LevelCfg;
using Framework;
using Gameplay;
using Gameplay.Level;
using Sirenix.OdinInspector;
using Sirenix.OdinInspector.Editor;
using Sirenix.Utilities;
using Sirenix.Utilities.Editor;
using System;
using System.Collections.Generic;
using System.Linq;
using Gameplay.Utils;
using TGS;
using UnityEditor;
using UnityEngine;
using UnityEngine.Serialization;
using Constants = Framework.Constants;
using ObjectFieldAlignment = Sirenix.OdinInspector.ObjectFieldAlignment;

//todo 序列化bug
public class LevelEditorWindow : OdinEditorWindow
{
    private static readonly Color regionColor = MapUtils.GetRGBAColor("FF960072");

    [Serializable]
    public class RegionData
    {
        [LabelText("出战区")]
        [OnValueChanged("OnRegionChanged")]
        public int preparingRegionId;

        [LabelText("出战区朝向")]
        public LevelData.CharacterToward preparingRegionToward;

        [LabelText("撤退区")]
        public int fallbackRegionId;

        [LabelText("敌方撤退区")]
        public int enemyFallbackRegionId;

        [LabelText("PVP防守区")]
        public int pvpDefendRegionId;

        [LabelText("PVP防守方朝向")]
        public LevelData.CharacterToward pvpDefendToward;

        private void OnRegionChanged()
        {
            var regionslist = currWindow._curMap.MapData.regions;
            for (int i = 0; i < regionslist.Count; i++)
            {
                currWindow._curMap.SetRegionColor(i, false, regionColor);
            }

            currWindow._curMap.SetRegionColor(preparingRegionId, true, regionColor);
        }
    }

    [Serializable]
    public class NPCEditorInfo
    {
        [HideLabel]
        public LevelData.NPCInfo npcInfo;

        private bool _isEditing;

        public NPCEditorInfo(LevelData.NPCInfo npcInfo)
        {
            this.npcInfo = npcInfo;
        }

        [Button("开始编辑巡逻信息")]
        [HideIf("_isEditing")]
        private void StartEditNPC()
        {
            LevelEditorWindow.currWindow.StartEditPatrolInfo(npcInfo);
            _isEditing = true;
        }

        [Button("完成编辑巡逻信息")]
        [ShowIf("_isEditing")]
        private void FinishEditNPC()
        {
            LevelEditorWindow.currWindow.FinishEditPatrolInfo();
            _isEditing = false;
        }
    }

    // private static LevelPresentation currentLevelPresentation;

    private MapManager _mapManager;

    private Dictionary<Vector2Int, GameObject> _npcDic;

    private Map _curMap;

    public static LevelEditorWindow currWindow;

    private LevelEditor _levelEditor;

    private LevelData.NPCInfo _currEditingNPCInfo;

    public bool IsEditingPatrolInfo => _currEditingNPCInfo != null;

    private bool ResponseClickOnCell => isEditingNPC || IsEditingPatrolInfo;

    // [LabelText("关卡名称"), Indent]
    // public string levelName;

    [LabelText("当前关卡数据"), Indent]
    [OnValueChanged("OnCurrentLevelDataChanged")]
    public LevelData currentLevelData = null;

    [LabelText("当前地区数据"), Indent]
    [OnValueChanged("OnCurrentLevelDataChanged")]
    public RegionData curRegionData = null;

    [LabelText("添加NPC")]
    [LabelWidth(100)]
    [SerializeField]
    public bool isEditingNPC;

    [PreviewField(150, ObjectFieldAlignment.Center)]
    [AssetList(Path = (Constants.LEVEL_NPC_PATH_WITHOUT_ASSET), CustomFilterMethod = "IsNPCPrefabValid")]
    [ShowIf("isEditingNPC")]
    [LabelText("选择NPC")]
    public GameObject npcObject;

    private bool IsNPCPrefabValid(GameObject prefab)
    {
        var monsterClasses = EditorTableManager.instance.tables.MonsterClass;
        var prefabPath = AssetDatabase.GetAssetPath(prefab);
        foreach (var monsterClassCfg in monsterClasses.DataList)
        {
            var combinePath = PathEx.GetEnemySrcModelPath(monsterClassCfg.NameId);
            if (combinePath == prefabPath)
                return true;
        }

        return false;
    }

    public List<NPCEditorInfo> CurrentNpcInfo = null;

    [Indent]
    [Button("保存当前关卡")]
    private void SaveCurrentLevel()
    {
        CheckCorrectLevel();
        //var configFilePath = string.Format(Constants.LEVEL_CONFIG_FORMAT_PATH, currentLevelData.id);
        currentLevelData.preparingRegionId = curRegionData.preparingRegionId;
        currentLevelData.fallbackRegionId = curRegionData.fallbackRegionId;
        currentLevelData.enemyFallbackRegionId = curRegionData.enemyFallbackRegionId;
        currentLevelData.preparingRegionToward = curRegionData.preparingRegionToward;
        currentLevelData.pvpDefendRegionId = curRegionData.pvpDefendRegionId;
        currentLevelData.pvpDefendToward = curRegionData.pvpDefendToward;

        //NPC列表
        currentLevelData.npcInfos = CurrentNpcInfo.Select(editorNPCInfo => editorNPCInfo.npcInfo).ToList();

        _levelEditor.SaveLevelData();
    }

    public static void OpenWindow(LevelEditor levelEditor)
    {
        MapEditorSettings.Init();
        currWindow = GetWindow<LevelEditorWindow>();
        currWindow.position = GUIHelper.GetEditorWindowRect().AlignCenter(800, 600);
        currWindow.currentLevelData = null;
        currWindow._levelEditor = levelEditor;
        currWindow.LoadLevel(levelEditor.LevelData);
    }

    public const string preparingRegionErrorMessage = "关卡出战区设置错误，<{0}>地图没有：<{1}>号地区。\n";
    public const string fallbackRegionErrorMessage = "关卡撤退区设置错误，<{0}>地图没有：<{1}>号地区。\n";
    public const string enemyFallbackRegionErrorMessage = "关卡敌方撤退区设置错误，<{0}>地图没有：<{1}>号地区。\n";
    public const string fixedMessage = "已将错误区域设置为<0>号地区。";

    private void CheckCorrectLevel()
    {
        if (_curMap == null)
        {
            return;
        }

        var regionList = _curMap.MapData.regions;

        var errorMessage = string.Empty;

        if (!_curMap.MapData.IsRegionExist(currentLevelData.preparingRegionId))
        {
            errorMessage += string.Format(preparingRegionErrorMessage, null,
                currentLevelData.preparingRegionId);
            currentLevelData.preparingRegionId = 0;
        }

        if (!_curMap.MapData.IsRegionExist(currentLevelData.fallbackRegionId))
        {
            errorMessage += string.Format(fallbackRegionErrorMessage, null,
                currentLevelData.fallbackRegionId);
            currentLevelData.fallbackRegionId = 0;
        }

        if (!_curMap.MapData.IsRegionExist(currentLevelData.enemyFallbackRegionId))
        {
            errorMessage += string.Format(enemyFallbackRegionErrorMessage, null,
                currentLevelData.enemyFallbackRegionId);
            currentLevelData.enemyFallbackRegionId = 0;
        }

        if (!string.IsNullOrEmpty(errorMessage))
        {
            CustomPopUpWindow.PopUp(errorMessage + fixedMessage);
        }
    }

    private void Awake()
    {
        SceneView.duringSceneGui += OnSceneGUI;
    }

    protected override void OnEnable()
    {
        TerrainTypeConfig.Load();
        _npcDic = new Dictionary<Vector2Int, GameObject>();
        base.OnEnable();
    }

    protected override void OnDisable()
    {
        currWindow = null;
        //MapEditorUtils.UnLoadMap(EditorMap.Instance);
        //DestroyImmediate(GameObject.Find("Main Camera"));
        DestroyNpcPrefab();
        _npcDic = null;
        base.OnDisable();
    }

    protected override void OnDestroy()
    {
        base.OnDestroy();
        if (_curMap != null)
            _curMap.TerrainGridSystem.OnMouseClickOnGrid -= OnCellClick;
        SaveCurrentLevel();
        SceneView.duringSceneGui -= OnSceneGUI;
    }

    private bool banSaveLevelList = false;

    private void OnCurrentLevelDataChanged()
    {
        Debug.Log($"{GetType()}.OnCurrentLevelDataChanged");
    }

    private const string descKey = "LevelDesc";
    private const string nameKey = "LevelName";

    private void LoadLevel(LevelData levelData)
    {
        DestroyNpcPrefab();
        _npcDic.Clear();

        currentLevelData = levelData;

        //加载地区信息
        curRegionData = new RegionData();
        curRegionData.preparingRegionId = currentLevelData.preparingRegionId;
        curRegionData.fallbackRegionId = currentLevelData.fallbackRegionId;
        curRegionData.enemyFallbackRegionId = currentLevelData.enemyFallbackRegionId;
        curRegionData.preparingRegionToward = currentLevelData.preparingRegionToward;
        curRegionData.pvpDefendRegionId = currentLevelData.pvpDefendRegionId;
        curRegionData.pvpDefendToward = currentLevelData.pvpDefendToward;
        
        
        _mapManager = FindObjectOfType<MapManager>();
        _curMap = _mapManager.Map;

        _curMap.TerrainGridSystem.OnMouseClickOnGrid += OnCellClick;

        //加载NPC到场景中
        CurrentNpcInfo = new();
        foreach (var npcInfo in currentLevelData.npcInfos)
        {
            CurrentNpcInfo.Add(new(npcInfo));

            string npcId = string.Format("P_E{0}", npcInfo.id.ToString().Substring(1));
            var npc = AssetDatabase.LoadAssetAtPath<GameObject>(string.Format(Constants.LEVEL_NPC_PATH, npcId));
            var position = _curMap.BlockPosition2WorldPosition(npcInfo.position);
            _npcDic.Add(npcInfo.position, Instantiate(npc, position, npc.transform.rotation));
        }
    }

    private void OnCellClick(TerrainGridSystem tgs, int cellindex, int buttonindex)
    {
        if (!ResponseClickOnCell) return;


        var clickPosition = _curMap.TGSCellIndex2BlockPosition(cellindex);

        int leftButton = 0;
        int rightButton = 1;

        if (buttonindex != leftButton && buttonindex != rightButton)
            return;
        bool opTrue = buttonindex == leftButton;

        if (IsEditingPatrolInfo)
        {
            if (opTrue)
                AddPatrolInfo(clickPosition);
            else
                RemovePatrolInfo(clickPosition);
        }
        else if (isEditingNPC)
        {
            if (opTrue)
            {
                AddNPC(clickPosition);
            }
            else
            {
                RemoveNPC(clickPosition);
            }
        }
    }

    private void AddNPC(Vector2Int clickPosition)
    {
        if (npcObject == null)
        {
            DebugUtil.LogError("请选择正确的NPC！！");
            return;
        }

        if (_npcDic.ContainsKey(clickPosition))
        {
            DebugUtil.LogError("该位置已有NPC存在，请重新选！！！");
            return;
        }

        LevelData.NPCInfo npcInfo = new LevelData.NPCInfo();
        string npcId = npcObject.name.Replace("P_E", "1");

        npcInfo.id = int.Parse(npcId);
        npcInfo.position = clickPosition;

        //默认等级为1
        npcInfo.level = 1;
        CurrentNpcInfo.Add(new(npcInfo));
        var position = _curMap.BlockPosition2WorldPosition(npcInfo.position);
        _npcDic.Add(npcInfo.position, Instantiate(npcObject, position, npcObject.transform.rotation));
        DebugUtil.Log("添加了[{0}]NPC到[ {1} ]位置上", npcObject.name, npcInfo.position);
    }

    private void RemoveNPC(Vector2Int clickPosition)
    {
        if (_npcDic.TryGetValue(clickPosition, out var npcObj))
        {
            var npc = CurrentNpcInfo.FirstOrDefault(npc => npc.npcInfo.position == clickPosition);
            if (npc != null)
            {
                CurrentNpcInfo.Remove(npc);
                DebugUtil.Log("从[ {0} ]位置上移除了[{1}]NPC", clickPosition, npcObj.name);
                DestroyImmediate(npcObj);
                _npcDic.Remove(clickPosition);
            }
        }
    }

    private void AddPatrolInfo(Vector2Int clickPosition)
    {
        _currEditingNPCInfo.patrolInfos.Add(new LevelData.PatrolInfo()
        {
            patrolPoint = clickPosition,
        });
    }

    private void RemovePatrolInfo(Vector2Int clickPosition)
    {
        var index = _currEditingNPCInfo.patrolInfos.FindLastIndex(pInfo => pInfo.patrolPoint == clickPosition);
        if (index >= 0)
            _currEditingNPCInfo.patrolInfos.RemoveAt(index);
    }

    public void StartEditPatrolInfo(LevelData.NPCInfo npcInfo)
    {
        _currEditingNPCInfo = npcInfo;
    }

    public void FinishEditPatrolInfo()
    {
        _currEditingNPCInfo = null;
    }

    private void DestroyNpcPrefab()
    {
        foreach (var npc in _npcDic)
        {
            DestroyImmediate(npc.Value);
        }
    }

    protected override void OnGUI()
    {
        base.OnGUI();
        if (_levelEditor == null || _mapManager == null || _mapManager.Map != _curMap ||
            _levelEditor.LevelData != currentLevelData)
        {
            Debug.LogError("数据已变更，请重新打开关卡编辑器");
            Close();
        }
    }

    private void OnSceneGUI(SceneView sceneView)
    {
        DrawPatrolPath();
    }

    private void DrawPatrolPath()
    {
        if (!IsEditingPatrolInfo)
        {
            return;
        }

        Vector3 lastWorldPos = Vector3.zero;
        for (int i = 0; i < _currEditingNPCInfo.patrolInfos.Count; i++)
        {
            var gridPos = _currEditingNPCInfo.patrolInfos[i].patrolPoint;
            var worldPos = _curMap.BlockPosition2WorldPosition(gridPos);
            Handles.color = Color.blue;
            Handles.DrawSolidDisc(worldPos, Vector3.up, 0.4f);
            if (i > 0)
            {
                Handles.color = Color.yellow;
                EditorUtil.DrawArrowInScene(lastWorldPos, worldPos, 0.5f);
            }

            //Handles.color = Color.black;
            Handles.Label(worldPos, i.ToString());
            lastWorldPos = worldPos;
        }
    }
}