using UnityEngine;
using UnityEditor;
using System.IO;
using System.Collections.Generic;
using System.Text;
using Thousandto.Editor.Excel;

public class CheckInvalidUISpriteEditor : EditorWindow
{
    [MenuItem("Ares/检查无效的UISprite")]
    static void DoIt()
    {
        var win = (CheckInvalidUISpriteEditor)EditorWindow.GetWindow(typeof(CheckInvalidUISpriteEditor));
        win.Show();
    }

    private string _prefabPath = string.Empty;
    private Dictionary<string, List<string>> _showTexts = new Dictionary<string, List<string>>(65535);
    void OnGUI()
    {
        EditorGUILayout.BeginVertical();
        EditorGUILayout.LabelField("选择路径");
        EditorGUILayout.Space();
        EditorGUILayout.LabelField("需要检测的UIForm路径");
        EditorGUILayout.BeginHorizontal();
        if (GUILayout.Button("浏览", GUILayout.Width(100)))
        {
            _prefabPath = EditorUtility.OpenFolderPanel("Check UIForm Prefab Path", _prefabPath, "");
        }
        if (string.IsNullOrEmpty(_prefabPath))
        {
            EditorGUILayout.LabelField("null...");
        }
        else
        {
            EditorGUILayout.LabelField(_prefabPath);
        }
        EditorGUILayout.EndHorizontal();
        EditorGUILayout.EndVertical();

        EditorGUILayout.BeginVertical();
        EditorGUILayout.BeginHorizontal();

        EditorGUILayout.EndHorizontal();

        EditorGUILayout.BeginHorizontal();

        EditorGUILayout.EndHorizontal();
        EditorGUILayout.EndVertical();

        if (GUILayout.Button("检测并导出", GUILayout.Width(100)))
        {
            string excelPath = EditorUtility.SaveFilePanel("Export Excel", "", "InvalidUISprite", "xlsx");
            if (string.IsNullOrEmpty(excelPath))
                return;
            if (string.IsNullOrEmpty(_prefabPath))
                return;
            if (Directory.Exists(_prefabPath))
            {
                _showTexts.Clear();
                var rowCount = 0;
                DirectoryInfo direction = new DirectoryInfo(_prefabPath);
                FileInfo[] files = direction.GetFiles("*.prefab", SearchOption.AllDirectories);
                for (int i = 0; i < files.Length; ++i)
                {
                    var path = files[i].FullName.Replace('\\', '/');
                    var starIndex = path.IndexOf("/Assets/", 0);
                    path = path.Remove(0, starIndex + 1);
                    var go = AssetDatabase.LoadAssetAtPath<GameObject>(path);
                    if (go != null)
                    {
                        var fileName = files[i].Name;
                        fileName = fileName.Replace(".prefab", "");

                        var csCodePath = files[i].FullName.Replace('\\', '/');
                        csCodePath = csCodePath.Remove(starIndex);
                        csCodePath = csCodePath + "/Assets/GameAssets/Resources/GameUI/Form/" + fileName;
                        List<string> codeTexts = new List<string>(64);
                        if(Directory.Exists(csCodePath))
                        {
                            DirectoryInfo csdirection = new DirectoryInfo(csCodePath);
                            FileInfo[] csFiles = csdirection.GetFiles("*.cs", SearchOption.AllDirectories);
                            for (int j = 0; j < csFiles.Length; ++j)
                            {
                                codeTexts.Add(File.ReadAllText(csFiles[j].FullName));
                            }
                        }

                        var luaCodePath = files[i].FullName.Replace('\\', '/');
                        luaCodePath = luaCodePath.Remove(starIndex);
                        luaCodePath = luaCodePath + "/Assets/GameAssets/Resources/Lua/UI/Forms/" + fileName;
                        if(Directory.Exists(luaCodePath))
                        {
                            DirectoryInfo luadirection = new DirectoryInfo(luaCodePath);
                            FileInfo[] luaFiles = luadirection.GetFiles("*.lua", SearchOption.AllDirectories);
                            for (int j = 0; j < luaFiles.Length; ++j)
                            {
                                codeTexts.Add(File.ReadAllText(luaFiles[j].FullName));
                            }
                        }

                        var sprites = go.GetComponentsInChildren<UISprite>(true);
                        for (int j = 0; j < sprites.Length; ++j)
                        {
                            if(!IsUsedSprite(sprites[j], codeTexts))
                            {
                                List<string> findList = null;
                                if (!_showTexts.TryGetValue(fileName, out findList))
                                {
                                    findList = new List<string>();
                                    _showTexts.Add(fileName, findList);
                                    ++rowCount;
                                }
                                findList.Add(FindNodePath(sprites[j].gameObject, fileName));
                                ++rowCount;
                            }
                        }
                    }
                }


                NormalExcelInfo excelInfo = new NormalExcelInfo();
                excelInfo.Name = "InvalidUISprite";
                excelInfo.Values = new string[rowCount, 2];
                var iter = _showTexts.GetEnumerator();
                int curRow = 0;
                while(iter.MoveNext())
                {
                    excelInfo.Values[curRow++, 0] = iter.Current.Key;
                    for(int i = 0; i < iter.Current.Value.Count;++ i)
                    {
                        excelInfo.Values[curRow++, 1] = iter.Current.Value[i];
                    }
                }
                ExcelWriter.Write(excelPath, excelInfo);
                _showTexts.Clear();
            }
        }
    }

    private bool IsUsedSprite(UISprite sprite, List<string> codeText)
    {
        var name = sprite.name;
        if (name == "Icon" || name == "Bind")
            return true;
        if (sprite.GetAtlasSprite() == null || !sprite.gameObject.activeSelf)
        {
            string number = string.Empty;
            bool findNumber = false;
            for (int i = 0; i < name.Length; ++i)
            {
                if (name[i] >= '0' && name[i] <= '9')
                {
                    number += name[i];
                    findNumber = true;
                }
                else if (findNumber)
                {
                    break;
                }
            }

            var findText1 = name + "\"";
            var findText2 = string.Empty;
            var findText3 = string.Empty;
            if (!string.IsNullOrEmpty(number))
            {
                findText2 = name.Replace(number, "{0}");
                findText3 = name.Replace(number, "%d");
            }
            //需要检测是否代码有调用
            bool isFind = false;
            for (int k = 0; k < codeText.Count; ++k)
            {
                if (codeText[k].IndexOf(findText1) >= 0)
                {
                    isFind = true;
                    break;
                }
                if (!string.IsNullOrEmpty(findText2) && codeText[k].IndexOf(findText2) >= 0)
                {
                    isFind = true;
                    break;
                }
                if (!string.IsNullOrEmpty(findText3) && codeText[k].IndexOf(findText3) >= 0)
                {
                    isFind = true;
                    break;
                }
            }
            return isFind;
        }
        return true;
    }
    private string FindNodePath(GameObject go, string formName)
    {
        StringBuilder pathSB = new StringBuilder();
        pathSB.Length = 0;
        Transform parent = go.transform;
        while (parent != null && parent.name != formName)
        {
            string cpPath = "/" + parent.gameObject.name;
            pathSB.Insert(0, cpPath);
            parent = parent.transform.parent;
        }
        return pathSB.ToString().TrimStart('/');
    }
}