using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
#if UNITY_EDITOR
using UnityEditor;
#endif
using UnityEngine;
using AtlasUtility;

public class LabelUtility : MonoBehaviour
{
    #region Config

    public TextAsset Script;
    public List<TextAsset> Languages;
    public List<GameObject> Prefabs;

    public static string Mark = "//Mark";
    public static string Prefix = "public static string ";
    public static string LanguagePageSeperator = "__";

    #endregion

    #if UNITY_EDITOR
    public void ClearLabels()
    {
        if (EditorUtility.DisplayDialog("注意", "清空所有标签?", "确定", "取消"))
        {
            string path = AssetDatabase.GetAssetPath(Script);
            string fileStr = File.ReadAllText(path);
            fileStr = Regex.Replace(fileStr, "(?<=\\{)[^\\}]*(?=\\})", $"\r\n\t{Mark}\r\n");
            File.WriteAllText(path, fileStr);
        }
    }

    public void CreateLabelFromPrefabs()
    {
        if (EditorUtility.DisplayDialog("注意", "新建Prefab标签?", "确定", "取消"))
        {
            StringBuilder stringBuilder = new StringBuilder(Script.text);
            foreach (var prefab in Prefabs)
            {
                CreateLabel(prefab, stringBuilder);
            }
            string path = AssetDatabase.GetAssetPath(Script);
            File.WriteAllText(path, stringBuilder.ToString());
        }
    }

    private void CreateLabel(GameObject prefab, StringBuilder stringBuilder)
    {
        Transform[] transforms = prefab.GetComponentsInChildren<Transform>(true);
        Match match = Regex.Match(stringBuilder.ToString(), Mark);
        if (match.Success)
        {
            stringBuilder.Replace(Mark, "", match.Index, match.Length);
            int insertIndex = match.Index + 2;
            for (int i = 0; i < transforms.Length; i++)
            {
                string insertStr = $"\t{Prefix}{transforms[i].name} = \"{transforms[i].name}\";";
                stringBuilder.Insert(insertIndex, insertStr);
                insertIndex += insertStr.Length;

                if (i < transforms.Length - 1)
                {
                    stringBuilder.Insert(insertIndex, "\r\n");
                    insertIndex += 2;
                }
                else if (i == transforms.Length - 1)
                {
                    stringBuilder.Insert(insertIndex, $"\r\n\t{Mark}\r\n");
                }
            }
        }
        else
        {
            throw new Exception("没有找到标记");
        }
    }

    public void CreateLabelFromLanguage()
    {
        if (EditorUtility.DisplayDialog("注意", "新建Language标签?", "确定", "取消"))
        {
            StringBuilder stringBuilder = new StringBuilder(Script.text);
            foreach (var language in Languages)
            {
                XmlDocument document = new XmlDocument();
                document.LoadXml(language.text);
                CreateLabelFromLanguageDocument(document, stringBuilder);
            }
            string path = AssetDatabase.GetAssetPath(Script);
            File.WriteAllText(path, stringBuilder.ToString());
        }
    }

    private void CreateLabelFromLanguageDocument(XmlDocument document, StringBuilder stringBuilder)
    {
        XmlNodeList childNodes = document.SelectSingleNode("lan").ChildNodes;
        for (int i = 0; i < childNodes.Count; i++)
        {
            CreateLabel(childNodes[i], stringBuilder);
        }
    }

    private void CreateLabel(XmlNode node, StringBuilder stringBuilder)
    {
        Match match = Regex.Match(stringBuilder.ToString(), Mark);
        if (match.Success)
        {
            stringBuilder.Replace(Mark, "", match.Index, match.Length);
            int insertIndex = match.Index + 2;
            for (int i = 0; i < node.ChildNodes.Count; i++)
            {
                XmlNode childNode = node.ChildNodes[i];
                string insertStr;
                if (i == 0)
                {
                    insertStr = $"\t{Prefix}{node.Name} = \"{node.Name}\";\r\n";
                    stringBuilder.Insert(insertIndex, insertStr);
                    insertIndex += insertStr.Length;
                }
                insertStr = $"\t{Prefix}{node.Name}{LanguagePageSeperator}{childNode.Name} = \"{node.Name}{LanguagePageSeperator}{childNode.Name}\";";
                stringBuilder.Insert(insertIndex, insertStr);
                insertIndex += insertStr.Length;

                if (i < node.ChildNodes.Count - 1)
                {
                    stringBuilder.Insert(insertIndex, "\r\n");
                    insertIndex += 2;
                }
                else if (i == node.ChildNodes.Count - 1)
                {
                    stringBuilder.Insert(insertIndex, $"\r\n\t{Mark}\r\n");
                }
            }
        }
        else
        {
            throw new Exception("没有找到标记");
        }
    }
    #endif

    public static string CombineLanguageLabel(string page, string id)
    {
        return $"{page}{LanguagePageSeperator}{id}";
    }

    //public void ReplaceLabels()
    //{
    //    Transform[] transforms = Prefabs[0].GetComponentsInChildren<Transform>(true);
    //    string[] pathes = Directory.GetFiles(Application.dataPath, "*.cs", SearchOption.AllDirectories);
    //    foreach (var path in pathes)
    //    {
    //        if (path.Contains("PrefabLabel"))
    //        {
    //            continue;
    //        }

    //        string fileStr = File.ReadAllText(path);

    //        foreach (var transform in transforms)
    //        {
    //            if (transform.name == "Canvas")
    //            {
    //                continue;
    //            }

    //            fileStr = Regex.Replace(fileStr, $"\"{transform.name}\"", $"PrefabLabel.{transform.name}");
    //        }

    //        File.WriteAllText(path, fileStr);
    //    }
    //}

    //public void TestReplaceLabels()
    //{
    //    Transform[] transforms = Prefabs[0].GetComponentsInChildren<Transform>(true);
    //    string path = AssetDatabase.GetAssetPath(TextAsset);
    //    string fileStr = File.ReadAllText(path);

    //    foreach (var transform in transforms)
    //    {
    //        if (transform.name == "Canvas")
    //        {
    //            continue;
    //        }

    //        fileStr = Regex.Replace(fileStr, $"\"{transform.name}\"", $"PrefabLabel.{transform.name}");
    //    }

    //    File.WriteAllText(path, fileStr);
    //}

    //public void ReplaceLanguageLabels()
    //{
    //    string[] pathes = Directory.GetFiles(Application.dataPath, "*.cs", SearchOption.AllDirectories);
    //    foreach (var path in pathes)
    //    {
    //        ReplaceLanguageLabel(path);
    //    }
    //}

    //public void ReplaceLanguageLabel(string path)
    //{
    //    string fileStr = File.ReadAllText(path);
    //    string pattern = "(?<=Language\\.GetStr\\()[^\\)]+(?=\\))|(?<=MulLanStr\\()[^\\)]+(?=\\))";
    //    Match match = Regex.Match(fileStr, pattern);
    //    while (match.Success)
    //    {
    //        string[] strings = match.Value.Replace(" ", "").Split(',');
    //        if (strings.Length == 1)
    //        {
    //            match = match.NextMatch();
    //        }
    //        else
    //        {
    //            fileStr = fileStr.ReplaceByLength(match.Index, match.Length, $"LanguageLabel.{strings[0].Trim('"')}{LanguagePageSeperator}{strings[1].Trim('"')}");
    //            match = Regex.Match(fileStr, pattern);
    //        }
    //    }
    //    File.WriteAllText(path, fileStr);
    //}
}