using System.Collections.Generic;
using System.IO;
using System.Text;
using Games.Scene;
using GCGame.Table;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;

public class ScenePointUtility : EditorWindow
{
    public const string tablePosition = "_Test/role.txt";
    public static readonly char[] seperateChars = {'\t'};
    private int _fubenId;
    private int _minLevel = 0;
    private int _maxLevel = 1024;
    private int _missionId = -1;
    private string _lastError;
    private List<ScenePoint> _scenePoints;

    [MenuItem("Scene/Scene Point Window")]
    public static void CreateWindow()
    {
        GetWindow<ScenePointUtility>();
    }

    private void OnEnable()
    {
        SceneView.onSceneGUIDelegate += OnSceneGui;
    }

    private void OnDisable()
    {
        SceneView.onSceneGUIDelegate -= OnSceneGui;
    }
    
    private void OnGUI()
    {
        GUILayout.Space(20f);
        _fubenId = EditorGUILayout.IntField("场景Id", _fubenId);
        _missionId = EditorGUILayout.IntField("任务Id", _missionId);
        _minLevel = EditorGUILayout.IntField("最小等级", _minLevel);
        _maxLevel = EditorGUILayout.IntField("最大等级", _maxLevel);
        GUILayout.Space(20f);
        if (GUILayout.Button("显示场景", GUILayout.Width(200f)))
        {
            var fubenList = EditorTableManager.GetTable<Tab_Fuben>();
            var fuben = fubenList.Find(a => a.Id == _fubenId);
            var sceneId = _fubenId;
            if (fuben != null)
            {
                sceneId = fuben.GetSceneIdbyIndex(0);
                if (sceneId < 0)
                    sceneId = _fubenId;
            }
            var sceneList = EditorTableManager.GetTable<Tab_SceneClass>();
            var scene = sceneList.Find(a => a.SceneID == sceneId);
            if (scene == null)
            {
                _lastError = string.Format("无法获得场景，FubenId = {0}，SceneId = {1}", _fubenId, sceneId);
            }
            else if (!string.IsNullOrEmpty(scene.ResName))
            {
                var scenePath = SceneDisassembly.sceneRoot.Open(scene.ResName + SceneDisassembly.sceneExtension);
                EditorSceneManager.OpenScene(scenePath, OpenSceneMode.Single);
                var tablePath = Application.dataPath.Open(tablePosition);
                if (!File.Exists(tablePath))
                {
                    _lastError = "文件不存在 " + tablePath;
                }
                else
                {
                    var lines = File.ReadAllLines(tablePath);
                    if (lines.Length < 2)
                    {
                        _lastError = "文件没有内容 " + tablePath;
                    }
                    else
                    {
                        var titles = lines[0].Split(seperateChars);
                        var nameId = titles.FindIndex(a => a == "角色名");
                        var levelId = titles.FindIndex(a => a == "等级");
                        var xId = titles.FindIndex(a => a == "坐标x");
                        var zId = titles.FindIndex(a => a == "坐标z");
                        var targetId = titles.FindIndex(a => a == "场景id");
                        if (nameId < 0)
                        {
                            _lastError = "无法获得角色名";
                            return;
                        }
                        if (levelId < 0)
                        {
                            _lastError = "无法获得等级";
                            return;
                        }
                        if (xId < 0)
                        {
                            _lastError = "无法获得坐标x";
                            return;
                        }
                        if (zId < 0)
                        {
                            _lastError = "无法获得坐标z";
                            return;
                        }
                        if (targetId < 0)
                        {
                            _lastError = "无法获得场景id";
                            return;
                        }
                        var missionSegment = -1;
                        if (_missionId >= 0)
                        {
                            missionSegment = titles.FindIndex(a => a == "任务id");
                            if (missionSegment < 0)
                            {
                                _lastError = "无法获得任务id";
                                return;
                            }
                        }
                        var max = Mathf.Max(nameId, levelId, xId, zId, targetId, missionSegment);
                        var sceneText = _fubenId.ToString();
                        _scenePoints = new List<ScenePoint>();
                        for (var i = 1; i < lines.Length; i++)
                            if (!string.IsNullOrEmpty(lines[i]))
                            {
                                var segments = lines[i].Split(seperateChars);
                                if (segments.Length > max &&
                                    segments[targetId].Trim() == sceneText)
                                {
                                    var charName = segments[nameId];
                                    var level = segments[levelId];
                                    var x = segments[xId];
                                    var z = segments[zId];
                                    int posX;
                                    int posZ;
                                    int levelValue;
                                    if (int.TryParse(x, out posX) &&
                                        int.TryParse(z, out posZ) &&
                                        int.TryParse(level, out levelValue))
                                    {
                                        if (levelValue >= _minLevel && levelValue <= _maxLevel)
                                        {
                                            if (_missionId >= 0)
                                            {
                                                int missionId;
                                                if (!int.TryParse(segments[missionSegment], out missionId) || _missionId != missionId)
                                                    continue;
                                            }

                                            var pos = new Vector2(posX, posZ).InsertY() * 0.01f;
                                            var ray = new Ray(pos + Vector3.up * 300f, Vector3.down);
                                            RaycastHit hit;
                                            if (Physics.Raycast(ray, out hit, float.PositiveInfinity,
                                                ActiveScene.terrainLayMask))
                                                pos = hit.point;
                                            _scenePoints.Add(new ScenePoint(charName + " Lv" + level, pos));
                                            var sphere = GameObject.CreatePrimitive(PrimitiveType.Sphere);
                                            var collider = sphere.GetComponent<Collider>();
                                            if (collider != null)
                                                DestroyImmediate(collider);
                                            sphere.name = charName + " " + pos;
                                            var meshRenderer = sphere.GetComponent<MeshRenderer>();
                                            meshRenderer.sharedMaterial = null;
                                            sphere.transform.position = pos;
                                        }
                                    }
                                }
                            }
                    }
                }
            }
        }

        GUILayout.Space(20f);
        if (!string.IsNullOrEmpty(_lastError))
            EditorGUILayout.HelpBox(_lastError, MessageType.Error);
        GUILayout.Space(20f);
        if (_scenePoints == null)
            EditorGUILayout.HelpBox("没有当前场景数据", MessageType.Warning);
        else
            EditorGUILayout.HelpBox("当前场景点数量" + _scenePoints.Count, MessageType.Info);
    }



    private void OnSceneGui(SceneView sceneView)
    {
        if (_scenePoints != null)
            for (var i = 0; i < _scenePoints.Count; i++)
            {
                var point = _scenePoints[i];
                Handles.color = Color.blue;
                Handles.Label(point.point + Vector3.up, point.info);
            }
    }


    private struct ScenePoint
    {
        public readonly string info;
        public readonly Vector3 point;

        public ScenePoint(string info, Vector3 point)
        {
            this.info = info;
            this.point = point;
        }
    }
}