using MiaoYu.Core.CodeGenerator.Abstractions;
using MiaoYu.Core.CodeGenerator.Core;

namespace MiaoYu.Core.CodeGenerator.Services;

/// <summary>
/// 代码生成服务
/// </summary>
[Component]
public class CodeGenerationService : ICodeGenerationService, IScopedDependency
{
    private readonly string _webRootPath;
    private readonly string templateRootPath = "/wwwroot/code_generation/template/";
    private readonly string templateRootPath_v4 = "/wwwroot/code_generation/templatev4/";
    private readonly string codesRootPath = "/code_generation/codes";
    private readonly string zipRootPath = "/code_generation/zip";

    //domain 模板文件
    private readonly string templateModel = "tempModel.cshtml";
    private readonly string templateService = "tempService.cshtml";
    private readonly string templateController = "tempController.cshtml";
    private readonly string templateServiceJs = "tempClientService.cshtml";
    private readonly string templateIndex = "tempClientIndex.cshtml";
    private readonly string templateInfo = "tempClientInfo.cshtml";

    // 客户端名称
    private readonly string projectClientName = "admin-client";

    private readonly IDatabaseTableService _databaseTableService;
    private readonly IRazorViewRender _razorViewRender;
    private readonly DataSourceManager _dataSourceManager;
    private readonly PathResolver _pathResolver;
    private readonly ITableMetaConfigService _tableMetaConfigService;

    /// <summary>
    /// 构造函数
    /// </summary>
    /// <param name="databaseTableService">数据库表服务</param>
    /// <param name="razorViewRender">Razor视图渲染器</param>
    /// <param name="webHostEnvironment">Web宿主环境</param>
    /// <param name="dataSourceManager">数据源管理器</param>
    /// <param name="pathResolver">路径解析器</param>
    /// <param name="tableMetaConfigService">表元信息配置服务</param>
    public CodeGenerationService(IDatabaseTableService databaseTableService,
        IRazorViewRender razorViewRender,
        IWebHostEnvironment webHostEnvironment,
        DataSourceManager dataSourceManager,
        PathResolver pathResolver,
        ITableMetaConfigService tableMetaConfigService)
    {
        _databaseTableService = databaseTableService;
        _razorViewRender = razorViewRender;
        _webRootPath = webHostEnvironment.WebRootPath;
        _dataSourceManager = dataSourceManager;
        _pathResolver = pathResolver;
        _tableMetaConfigService = tableMetaConfigService;
    }

    /// <summary>
    /// 生成上下文集合
    /// </summary>
    /// <returns></returns>
    public PagingView GetGenContextDtos(int page, int size, GenFormDto search)
    {
        var PagingView = new PagingView(page, size);
        var result = new List<Dictionary<string, object>>();

        var query = _databaseTableService.GetAllTablesByCache().AsEnumerable();

        if (!string.IsNullOrWhiteSpace(search.TableName))
        {
            query = query.Where(w => w.TableName != null && w.TableName.Contains(search.TableName));
        }

        if (!string.IsNullOrWhiteSpace(search.DataBase))
        {
            query = query.Where(w => w.DataBase == search.DataBase);
        }

        var tables = query
            .Skip((page - 1) * size)
            .Take(size)
            .ToList();

        foreach (var item in tables)
        {
            var dic = new Dictionary<string, object>();
            dic.Add(nameof(item.TableName), item.TableName);
            dic.Add(nameof(item.Remark), item.Remark);
            dic.Add(nameof(item.DataBase), item.DataBase);

            result.Add(dic);
        }

        PagingView.Total = query.LongCount();
        PagingView.Page = page;
        PagingView.Size = size;
        PagingView.DataSource = result;
        PagingView.PageCount = PagingView.Total / size;
        return PagingView;
    }

    /// <summary>
    /// 获取所有表集合信息
    /// </summary>
    /// <param name="tableName">表名</param>
    /// <param name="databaseKey">数据库标识（强烈建议传入，避免多数据源同名表冲突）</param>
    /// <returns></returns>
    public GenDbTableDto GetGenContextDtoByTableName(string tableName, string? databaseKey = null)
    {
        var query = _databaseTableService.GetAllTables().AsEnumerable();

        // 如果指定了数据库，则精确匹配
        if (!string.IsNullOrWhiteSpace(databaseKey))
        {
            query = query.Where(w => w.TableName == tableName && w.DataBase == databaseKey);
        }
        else
        {
            // 警告：如果多个数据源有同名表，将返回第一个匹配的表
            // 建议：始终传入 databaseKey 参数以避免歧义
            query = query.Where(w => w.TableName == tableName);

            // 记录警告日志
            var matchedTables = query.ToList();
            if (matchedTables.Count > 1)
            {
                var databases = string.Join(", ", matchedTables.Select(t => t.DataBase));
                LogUtil.Log.Warning($"表 '{tableName}' 在多个数据源中存在: [{databases}]。未指定 databaseKey，将使用第一个匹配项。");
            }
        }

        var genDbTableDto = query.FirstOrDefault();

        if (genDbTableDto != null)
        {
            FillPathByLowCodeTable(genDbTableDto);
        }

        return genDbTableDto;
    }

    /// <summary>
    /// 根据 lowCodeTable 填充路径（支持多数据源）
    /// </summary>
    /// <param name="lowCodeTable">低代码表配置</param>
    /// <returns>填充路径后的低代码表配置</returns>
    public LowCodeTable FillPathByLowCodeTable(LowCodeTable lowCodeTable)
    {
        var provider = _dataSourceManager.GetProvider(lowCodeTable.DataBase ?? DataSourceConstants.Admin);
        if (provider == null)
        {
            LogUtil.Log.Warning($"未找到数据源 {lowCodeTable.DataBase}，使用默认Admin配置");
            provider = _dataSourceManager.GetProvider(DataSourceConstants.Admin);
        }

        var config = provider!.Config;

        if (string.IsNullOrWhiteSpace(lowCodeTable.ModelPath))
        {
            lowCodeTable.ModelPath = _pathResolver.ResolvePath(
                config.ModelPathTemplate, config, lowCodeTable.TableName);
        }

        if (string.IsNullOrWhiteSpace(lowCodeTable.ServicePath))
        {
            lowCodeTable.ServicePath = _pathResolver.ResolvePath(
                config.ServicePathTemplate, config, lowCodeTable.TableName);
        }

        if (string.IsNullOrWhiteSpace(lowCodeTable.ControllerPath))
        {
            lowCodeTable.ControllerPath = _pathResolver.ResolvePath(
                config.ControllerPathTemplate, config, lowCodeTable.TableName);
        }

        if (string.IsNullOrWhiteSpace(lowCodeTable.ClientIndexPath))
        {
            lowCodeTable.ClientIndexPath = _pathResolver.ResolvePath(
                config.ClientIndexPathTemplate, config, lowCodeTable.TableName?.ToLower());
        }

        if (string.IsNullOrWhiteSpace(lowCodeTable.ClientInfoPath))
        {
            lowCodeTable.ClientInfoPath = _pathResolver.ResolvePath(
                config.ClientInfoPathTemplate, config, lowCodeTable.TableName?.ToLower());
        }

        if (string.IsNullOrWhiteSpace(lowCodeTable.ClientServicePath))
        {
            lowCodeTable.ClientServicePath = _pathResolver.ResolvePath(
                config.ClientServicePathTemplate, config, lowCodeTable.TableName?.ToLower());
        }

        if (string.IsNullOrWhiteSpace(lowCodeTable.MenuPath))
        {
            lowCodeTable.MenuPath = _pathResolver.ResolvePath(
                config.MenuPathTemplate, config, lowCodeTable.TableName ?? string.Empty);
        }

        if (string.IsNullOrWhiteSpace(lowCodeTable.RouterPath))
        {
            lowCodeTable.RouterPath = _pathResolver.ResolvePath(
                config.RouterPathTemplate, config, lowCodeTable.TableName ?? string.Empty);
        }

        return lowCodeTable;
    }

    /// <summary>
    /// 获取代码生成上下文
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public GenDbTableDto GetGenContextDto(GenFormDto genFormDto)
    {
        var tableName = genFormDto.TableName;
        var tableInfo = GetGenContextDtoByTableName(tableName, genFormDto.DataBase);

        if (tableInfo == null) return null;
        tableInfo.Namespace = Tools.GetNamespacePrefix<CodeGenerationService>();
        return tableInfo;
    }

    /// <summary>
    /// 生成model（支持多数据源）
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<string> GenModelAsync(GenFormDto genFormDto)
    {
        var context = GetGenContextDto(genFormDto);
        var provider = _dataSourceManager.GetProvider(context.DataBase ?? DataSourceConstants.Admin);
        var templatePath = provider?.Config.TemplatePath ?? templateRootPath;
        return ClearSymbol(await _razorViewRender.RenderAsync(templatePath + templateModel, context));
    }

    /// <summary>
    /// 生成service（支持多数据源）
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<string> GenServiceAsync(GenFormDto genFormDto)
    {
        var context = GetGenContextDto(genFormDto);
        var provider = _dataSourceManager.GetProvider(context.DataBase ?? DataSourceConstants.Admin);
        var templatePath = provider?.Config.TemplatePath ?? templateRootPath;
        return ClearSymbol(await _razorViewRender.RenderAsync(templatePath + templateService, context));
    }

    /// <summary>
    /// 生成controller（支持多数据源）
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<string> GenControllerAsync(GenFormDto genFormDto)
    {
        var context = GetGenContextDto(genFormDto);
        var provider = _dataSourceManager.GetProvider(context.DataBase ?? DataSourceConstants.Admin);
        var templatePath = provider?.Config.TemplatePath ?? templateRootPath;
        return ClearSymbol(await _razorViewRender.RenderAsync(templatePath + templateController, context));
    }

    /// <summary>
    /// 生成service js（支持多数据源）
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<string> GenServiceJsAsync(GenFormDto genFormDto)
    {
        var context = GetGenContextDto(genFormDto);
        var provider = _dataSourceManager.GetProvider(context.DataBase ?? DataSourceConstants.Admin);
        var templatePath = provider?.Config.TemplatePath ?? templateRootPath;
        return ClearSymbol(await _razorViewRender.RenderAsync(templatePath + templateServiceJs, context));
    }

    /// <summary>
    /// 生成 index vue（支持多数据源）
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<string> GenIndexAsync(GenFormDto genFormDto)
    {
        var context = GetGenContextDto(genFormDto);
        var provider = _dataSourceManager.GetProvider(context.DataBase ?? DataSourceConstants.Admin);
        var templatePath = provider?.Config.TemplatePath ?? templateRootPath;
        return ClearSymbol(await _razorViewRender.RenderAsync(templatePath + templateIndex, context));
    }

    /// <summary>
    /// 生成 info vue（支持多数据源）
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<string> GenInfoAsync(GenFormDto genFormDto)
    {
        var context = GetGenContextDto(genFormDto);
        var provider = _dataSourceManager.GetProvider(context.DataBase ?? DataSourceConstants.Admin);
        var templatePath = provider?.Config.TemplatePath ?? templateRootPath;
        return ClearSymbol(await _razorViewRender.RenderAsync(templatePath + templateInfo, context));
    }


    /// <summary>
    /// 获取代码
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<string> GetCodeByTypeAndTableNameAsync(GenFormDto genFormDto)
    {
        return genFormDto.Type switch
        {
            "MiaoYu.Models" => await GenModelAsync(genFormDto),
            //"MiaoYu.Repository.DbSet" => await this.CreateRepositoryDbSetAsync(),
            "MiaoYu.Services.Admin" => await GenServiceAsync(genFormDto),
            "MiaoYu.Controllers.Admin" => await GenControllerAsync(genFormDto),
            "Client.Index" => await GenIndexAsync(genFormDto),
            "Client.Info" => await GenInfoAsync(genFormDto),
            "Client.Service" => await GenServiceJsAsync(genFormDto),
            _ => string.Empty
        };
    }

    /// <summary>
    /// 创建所有代码文件
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<bool> CreateAllCodeFilesAsync(GenFormDto genFormDto)
    {
        var tables = _databaseTableService.GetAllTablesByCache();

        foreach (var item in tables)
        {
            genFormDto.TableName = item.TableName;
            genFormDto.DataBase = item.DataBase;
            await CreateCodeFilesAsync(genFormDto);

            // 保存元信息到配置文件
            await SaveTableMetaConfigAsync(item);

            await Task.Delay(25);
        }

        return true;
    }

    /// <summary>
    /// 获取下载代码信息
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<(byte[] codeBytes, string contentType, string fileName)> DownloadAsync(GenFormDto genFormDto)
    {
        var fileName = FindCodeFileClassName(genFormDto);

        var contentType = Tools.GetFileContentType[".cs"];
        if (fileName == "Index.vue" || fileName == "Info.vue")
        {
            contentType = Tools.GetFileContentType[".txt"];
        }

        return (Encoding.UTF8.GetBytes(await GetCodeByTypeAndTableNameAsync(genFormDto)), contentType, fileName);
    }

    /// <summary>
    /// 根据类型下载所有代码
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task<(byte[] codeBytes, string contentType, string fileName)> DownloadAllAsync(GenFormDto genFormDto)
    {
        var isViews = genFormDto.Type == "Client.Index" || genFormDto.Type == "Client.Info";
        var success = await CreateAllCodeFilesAsync(genFormDto);

        if (!success) LogUtil.Log.Warning("无法下载,代码创建失败!");

        string path;
        string zipPath;

        if (isViews)
        {
            path = $"{_webRootPath}{codesRootPath}/pages";
            zipPath = $"{_webRootPath}{zipRootPath}";
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }

            if (!Directory.Exists(zipPath))
            {
                Directory.CreateDirectory(zipPath);
            }

            zipPath += "/pages.zip";
        }
        else
        {
            path = $"{_webRootPath}{codesRootPath}/{genFormDto.Type}";
            zipPath = $"{_webRootPath}{zipRootPath}";
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }

            if (!Directory.Exists(zipPath))
            {
                Directory.CreateDirectory(zipPath);
            }

            zipPath += $"/{genFormDto.Type}.zip";
        }

        //开始压缩
        var zip = new MiaoYu.Core.Zips.Zip(path, zipPath);
        var bytes = await File.ReadAllBytesAsync(zipPath);

        //删除文件
        if (File.Exists(zipPath)) File.Delete(zipPath);
        if (Directory.Exists(path)) Directory.Delete(path, true);

        return (bytes, Tools.GetFileContentType[".zip"], $"{(isViews ? "pages" : genFormDto.Type)}.zip");
    }

    /// <summary>
    /// 创建数据库字典文件
    /// </summary>
    /// <returns></returns>
    public (byte[] excel, string dataBase) CreateDataDictionary()
    {
        var tables = _databaseTableService.GetAllTablesByCache();
        var workbook = new XSSFWorkbook();
        var dataBaseName = _databaseTableService.GetDatabaseName();

        foreach (var item in tables)
        {
            var sheet = workbook.CreateSheet(item.TableName + (string.IsNullOrWhiteSpace(item.Remark) ? "" : "_" + item.Remark));

            var i = 0;

            #region 配置表头

            var rowTitle = sheet.CreateRow(i);
            rowTitle.CreateCell(0).SetCellValue("表空间");
            sheet.SetColumnWidth(0, 20 * 256);
            rowTitle.CreateCell(1).SetCellValue("表名");
            sheet.SetColumnWidth(1, 20 * 256);
            rowTitle.CreateCell(2).SetCellValue("表描述");
            sheet.SetColumnWidth(2, 20 * 256);
            rowTitle.CreateCell(3).SetCellValue("字段");
            sheet.SetColumnWidth(3, 20 * 256);
            rowTitle.CreateCell(4).SetCellValue("字段描述");
            sheet.SetColumnWidth(4, 20 * 256);
            rowTitle.CreateCell(5).SetCellValue("是否主键");
            sheet.SetColumnWidth(5, 20 * 256);
            rowTitle.CreateCell(6).SetCellValue("是否自增");
            sheet.SetColumnWidth(6, 20 * 256);
            rowTitle.CreateCell(7).SetCellValue("可否为 Null");
            sheet.SetColumnWidth(7, 20 * 256);
            rowTitle.CreateCell(8).SetCellValue("数据库类型");
            sheet.SetColumnWidth(8, 20 * 256);
            rowTitle.CreateCell(9).SetCellValue("C#类型");
            sheet.SetColumnWidth(9, 20 * 256);
            rowTitle.CreateCell(10).SetCellValue("数据长度");
            sheet.SetColumnWidth(10, 20 * 256);

            #endregion
            //组装数据
            foreach (var tableInfo in item.TableInfos)
            {
                i++;
                var index = item.TableInfos.IndexOf(tableInfo);
                var row = sheet.CreateRow(i);
                //row.CreateCell(0).SetCellValue(item.Schema);
                row.CreateCell(1).SetCellValue(item.TableName);
                row.CreateCell(2).SetCellValue(item.Remark);
                row.CreateCell(3).SetCellValue(tableInfo.ColumnName);
                row.CreateCell(4).SetCellValue(tableInfo.Describe);
                row.CreateCell(5).SetCellValue(tableInfo.IsPrimary ? "是" : "否");
                row.CreateCell(6).SetCellValue(tableInfo.IsIdentity ? "是" : "否");
                row.CreateCell(7).SetCellValue(tableInfo.IsNullable ? "是" : "否");
                row.CreateCell(8).SetCellValue(tableInfo.DatabaseColumnType);
                row.CreateCell(9).SetCellValue(tableInfo.CsType);
                row.CreateCell(10).SetCellValue(tableInfo.MaxLength ?? 0);
            }

        }

        //填充byte
        using var ms = new MemoryStream();
        workbook.Write(ms);
        return (ms.ToArray(), dataBaseName);
    }

    /// <summary>
    /// 自动导入文件到项目
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    public async Task AutoImprotProjectAsync(GenFormDto genFormDto)
    {
        var context = GetGenContextDto(genFormDto);
        if (context == null)
        {
            LogUtil.Log.Warning($"找不到数据表: {genFormDto.TableName} (数据库: {genFormDto.DataBase})");
            return;
        }

        //获取表路径信息
        var tables = _databaseTableService.GetAllTablesByCache();
        var tableInfo = tables.FirstOrDefault(w =>
            w.TableName == genFormDto.TableName &&
            w.DataBase == genFormDto.DataBase);

        var fileTyps = Enum.GetValues<FileTypeEnum>();

        foreach (var fileType in fileTyps)
        {
            var (filePath, oldName, replaceName) = GetFileAbsolutelyPath(
                genFormDto.TableName, fileType, genFormDto.DataBase);
            await SaveToFileAsync(genFormDto.TableName, fileType, filePath, oldName, replaceName);
        }
    }

    /// <summary>
    /// 获取所有数据库列表
    /// </summary>
    /// <returns></returns>
    public List<DataSourceDto> GetAllDataSources()
    {
        var providers = _dataSourceManager.GetAllProviders()
            .OrderBy(p => p.Config.Order)
            .ToList();

        return providers.Select(p => new DataSourceDto
        {
            Key = p.Config.DatabaseKey,
            DisplayName = p.Config.DisplayName
        }).ToList();
    }


    #region 私有方法

    /// <summary>
    /// 清除多余符号
    /// </summary>
    /// <param name="code"></param>
    /// <returns></returns>
    private string ClearSymbol(StringBuilder code)
    {
        return code
                .ToString()
                .Replace("<pre>", "")
                .Replace("</pre>", "")
                .Trim();
    }

    /// <summary>
    /// 创建代码文件
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    private async Task<string> CreateCodeFilesAsync(GenFormDto genFormDto)
    {
        var path = $"{_webRootPath}{codesRootPath}";

        if (genFormDto.Type == "Client.Index" || genFormDto.Type == "Client.Info")
        {
            path += $"/pages";  //
            if (!Directory.Exists(path)) Directory.CreateDirectory(path);
            path += $"/{genFormDto.TableName}";
            if (!Directory.Exists(path)) Directory.CreateDirectory(path);
            //Index
            var codeString = await GenIndexAsync(genFormDto);
            await File.WriteAllTextAsync($"{path}/Index.vue", codeString, Encoding.UTF8);
            //Info
            codeString = await GenInfoAsync(genFormDto);
            await File.WriteAllTextAsync($"{path}/Info.vue", codeString, Encoding.UTF8);
            return path;
        }

        //
        path = $"{_webRootPath}{codesRootPath}/{genFormDto.Type}";
        var className = FindCodeFileClassName(genFormDto);
        var code = await GetCodeByTypeAndTableNameAsync(genFormDto);
        //
        if (!Directory.Exists(path)) Directory.CreateDirectory(path);
        await File.WriteAllTextAsync($"{path}/{className}", code, Encoding.UTF8);
        return path;
    }

    /// <summary>
    /// 获取代码文件名称
    /// </summary>
    /// <param name="genFormDto"></param>
    /// <returns></returns>
    private string FindCodeFileClassName(GenFormDto genFormDto)
    {
        var provider = _dataSourceManager.GetProvider(genFormDto.DataBase ?? DataSourceConstants.Admin);
        var entityName = _pathResolver.GetEntityName(genFormDto.TableName, provider.Config);

        return genFormDto.Type switch
        {
            "MiaoYu.Models" => $"{entityName}.cs",
            "MiaoYu.Services.Admin" => $"{entityName}Service.cs",
            "MiaoYu.Controllers.Admin" => $"{entityName}Controller.cs",
            "Client.Index" => $"Index.vue",
            "Client.Info" => $"Info.vue",
            "Client.Service" => $"{entityName}Service.ts",
            _ => string.Empty
        };
    }

    /// <summary>
    /// 获取要生成文件的绝对路径
    /// </summary>
    /// <param name="tableName"></param>
    /// <param name="type"></param>
    /// <param name="databaseKey">数据库标识（可选）</param>
    /// <returns></returns>
    private (string, string, string) GetFileAbsolutelyPath(string tableName, FileTypeEnum type, string? databaseKey = null)
    {
        var replaceName = string.Empty;
        var oldFileName = string.Empty;
        var dto = new GenFormDto() { TableName = tableName, Type = GetEnumDescription(type), DataBase = databaseKey };

        var provider = _dataSourceManager.GetProvider(databaseKey ?? DataSourceConstants.Admin);
        var entityName = _pathResolver.GetEntityName(tableName, provider.Config);
        var entityNameWithPath = provider.Config.UsesPluralPath ? entityName + "s" : entityName;

        var fileName = FindCodeFileClassName(dto);
        var path = string.Empty;
        //获取表路径信息
        var tableInfo = GetGenContextDtoByTableName(tableName, databaseKey);

        switch (type)
        {
            case FileTypeEnum.Model:
                path = provider.Config.UsesPluralPath
                    ? $"{tableInfo.ModelPath}s"
                    : tableInfo.ModelPath;
                break;
            case FileTypeEnum.Service:
                path = provider.Config.UsesPluralPath
                    ? $"{tableInfo.ServicePath}s"
                    : tableInfo.ServicePath;
                break;
            case FileTypeEnum.Controller:
                path = provider.Config.UsesPluralPath
                    ? $"{tableInfo.ControllerPath}s"
                    : tableInfo.ControllerPath;
                break;
            case FileTypeEnum.ClientIndex:
                path = tableInfo.ClientIndexPath + $"/";
                break;
            case FileTypeEnum.ClientInfo:
                path = tableInfo.ClientInfoPath + $"/";
                break;
            case FileTypeEnum.ClientService:
                path = tableInfo.ClientServicePath + $"/";
                break;
        }

        var fileDirPath = Path.Combine(path);
        if (!Directory.Exists(fileDirPath))
        {
            Directory.CreateDirectory(fileDirPath);
        }

        // 组合成完整路劲
        var filePath = $"{fileDirPath}/{fileName}";
        // 判断是否覆盖文件
        if (!(tableInfo.IsCover ?? false))
        {
            // 如果文件已存在 加尾缀 重新创建文件夹
            if (File.Exists(filePath))
            {
                oldFileName = FindCodeFileClassName(dto);
                replaceName = $"{oldFileName}{DateTime.Now.ToString("yyyyMMddHHmmss")}";
                filePath = $"{fileDirPath}/{replaceName}";
            }
        }

        return (filePath, oldFileName, replaceName);
    }

    /// <summary>
    /// 保存到文件
    /// </summary>
    /// <param name="tableName"></param>
    /// <param name="type"></param>
    /// <param name="filePath"></param>
    /// <param name="oldName"></param>
    /// <param name="replaceName"></param>
    /// <param name="databaseKey">数据库标识（可选）</param>
    /// <returns></returns>
    private async Task SaveToFileAsync(string tableName, FileTypeEnum type, string filePath, string oldName, string replaceName, string? databaseKey = null)
    {
        var dto = new GenFormDto() { TableName = tableName, Type = GetEnumDescription(type), DataBase = databaseKey };
        var codeString = await GetCodeByTypeAndTableNameAsync(dto);
        if (!string.IsNullOrWhiteSpace(replaceName) && !string.IsNullOrWhiteSpace(oldName))
        {
            if (type == FileTypeEnum.Model || type == FileTypeEnum.Service || type == FileTypeEnum.Controller)
            {
                codeString = codeString.Replace(oldName, replaceName);
            }
        }
        await Task.Delay(500);
        await File.WriteAllTextAsync(filePath, codeString, Encoding.UTF8);
    }

    /// <summary>
    /// 获取枚举上的描述特性
    /// </summary>
    /// <param name="type"></param>
    /// <returns></returns>
    private string GetEnumDescription(FileTypeEnum type)
    {
        return type.GetType().GetField(Enum.GetName(type)).GetCustomAttribute<DescriptionAttribute>().Description;
    }

    /// <summary>
    /// 保存表元信息到配置文件
    /// </summary>
    /// <param name="tableDto">表信息</param>
    private async Task SaveTableMetaConfigAsync(GenDbTableDto tableDto)
    {
        if (string.IsNullOrEmpty(tableDto.DataBase) || string.IsNullOrEmpty(tableDto.TableName))
        {
            return;
        }

        var config = new TableMetaConfig
        {
            DisplayName = tableDto.DisplayName,
            EntityName = tableDto.EntityName,
            Remark = tableDto.Remark,
            ModelPath = tableDto.ModelPath,
            ServicePath = tableDto.ServicePath,
            ControllerPath = tableDto.ControllerPath,
            ClientIndexPath = tableDto.ClientIndexPath,
            ClientInfoPath = tableDto.ClientInfoPath,
            ClientServicePath = tableDto.ClientServicePath,
            IsCover = tableDto.IsCover ?? false,
            Columns = new Dictionary<string, ColumnMetaConfig>()
        };

        // 保存列配置
        if (tableDto.TableInfos != null)
        {
            foreach (var column in tableDto.TableInfos)
            {
                if (!string.IsNullOrEmpty(column.ColumnName))
                {
                    config.Columns[column.ColumnName] = new ColumnMetaConfig
                    {
                        DisplayName = column.DisplayName,
                        Describe = column.Describe,
                        CsField = column.CsField,
                        IsTableSelect = column.IsTableSelect,
                        IsImageId = column.IsImageId,
                        IsTableColumnShow = column.IsTableColumnShow
                    };
                }
            }
        }

        await _tableMetaConfigService.SaveConfigAsync(tableDto.DataBase, tableDto.TableName, config);
    }
    #endregion
}

public enum FileTypeEnum
{
    [Description("MiaoYu.Models")]
    Model,
    [Description("MiaoYu.Services.Admin")]
    Service,
    [Description("MiaoYu.Controllers.Admin")]
    Controller,
    [Description("Client.Index")]
    ClientIndex,
    [Description("Client.Info")]
    ClientInfo,
    [Description("Client.Service")]
    ClientService

}