using System;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;


// 通过正则提取所有代码中的中文字符串
// 将中文字符串分行写入到文件
// 通过有道翻译进行翻译（https://fanyi.youdao.com/index.html#/），可每次复制不多于5000的内容进行翻译
// 翻译内容保存在translation.xx.txt中，xx即语言选项
// 通过resxhelper将中文及对应翻译写入到对应资源文件

namespace i18n_formatter
{
    class Program
    {
        static HashSet<string> needI18n = new HashSet<string>();
        static void Main()
        {
            ResxHelper.GenerateResxFileForTranslationsInCurrentDirectory();
        }

        // call this first
        static void ExtractChineseStrings()
        {
            string directory = "samples";

            // 遍历给定目录，提取代码文件中所有中文字符串，并保存到HashSet中
            WalkDirectory(new DirectoryInfo(directory));

            // 将HashSet写入到json文件
            //string json = CreateJsonFromHashSet(needI18n);

            //File.WriteAllText("i18n.json", json);
            string result = CreateRawTextFromHashSet(needI18n);

            File.WriteAllText("raw.text", result);
            // 之后要手动进行翻译了
            // 读取翻译结果，将翻译结果写入到对应的资源文件中
        }

        static string CreateJsonFromHashSet(HashSet<string> set)
        {
            string json = "[";
            foreach (var item in set)
            {
                json += "\"" + item + "\",";
            }
            json = json.TrimEnd(',') + "]";
            return json;
        }

        static string CreateRawTextFromHashSet(HashSet<string> set)
        {
            string result = "";
            string splitter = "";
            foreach (var item in set)
            {
                result += splitter + item;
                splitter = "\r\n";
            }
            return result;
        }

        static HashSet<string> ReadHardedcodedStrings(string fileContent, string filePath)
        {
            HashSet<string> result = new HashSet<string>();

            // Define a regular expression to match string literals
            Regex stringLiteralRegex = new Regex("\"(.*?)\"", RegexOptions.Compiled);

            // Find all matches of string literals in the file content
            MatchCollection matches = stringLiteralRegex.Matches(fileContent);

            Console.WriteLine(filePath);
            // Display all the matched string literals
            foreach (Match match in matches)
            {
                if (!CheckChineses(match.Groups[1].Value)) continue;
                needI18n.Add(match.Groups[1].Value);
                result.Add(match.Groups[1].Value);
                //Console.WriteLine(match.Groups[1].Value);
            }
            return result;
        }

        static bool CheckChineses(string sample)
        {
            string pattern = @"[\u4E00-\u9FFF]"; // The pattern to match Chinese characters

            // Create a Regex object with the pattern and check if there is a match
            Regex regex = new Regex(pattern);
            Match match = regex.Match(sample);
            return match.Success;
        }

        static void WalkDirectory(DirectoryInfo directory)
        {
            // Process files in the current directory
            foreach (FileInfo file in directory.GetFiles("*.cs"))
            {
                if (file.Name.ToUpper().Contains(".DESIGNER."))
                    continue;
                string fileContent = File.ReadAllText(file.FullName);
                HashSet<string> hardcodedChineseStrings = ReadHardedcodedStrings(fileContent, file.FullName);
                foreach(string hcString in hardcodedChineseStrings)
                {
                    Console.WriteLine("replacing" + hcString);
                    Console.WriteLine(fileContent.Contains(hcString));
                    fileContent = fileContent.Replace("\"" + hcString + "\"", "LocalizationManager.GetString(" + "\"" + hcString + "\"" + ")");
                }
                File.WriteAllText("D:/DevWorkspace/i18n_formatter/bin/Debug/output/"+ file.Name, fileContent);
            }

            // Recursively process subdirectories
            foreach (DirectoryInfo subdirectory in directory.GetDirectories())
            {
                WalkDirectory(subdirectory);
            }
        }
    }
}