using Infrastructure;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using ZR.CodeGenerator.Model;
using ZR.Model.System.Generate;

namespace ZR.CodeGenerator
{
    /// <summary>
    /// 代码生成器。
    /// <remarks>
    /// 根据指定的实体域名空间生成Repositories和Services层的基础代码文件。
    /// </remarks>
    /// </summary>
    public class CodeGeneratorTool
    {
        /// <summary>
        /// 代码生成器配置
        /// </summary>
        private static CodeGenerateOption _option = new CodeGenerateOption();
        /// <summary>
        /// InputDto输入实体是不包含字段
        /// </summary>
        public static readonly string[] inputDtoNoField = new string[] { "DeleteMark", "CreateTime", "updateTime", "addtime" };
        public static readonly string[] imageFiled = new string[] { "icon", "img", "image", "url", "pic", "photo" };
        public static readonly string[] selectFiled = new string[] { "status", "type", "state", "sex", "gender" };
        public static readonly string[] radioFiled = new string[] { "status", "state", "isShow", "isHidden", "ishide" };

        /// <summary>
        /// 代码生成器入口方法
        /// </summary>
        /// <param name="dbTableInfo"></param>
        /// <param name="dto"></param>
        public static void Generate(GenTable dbTableInfo, GenerateDto dto)
        {
            _option.BaseNamespace = "ZR.";
            //_option.TableList = listTable;
            _option.ReplaceTableNameStr = dto.replaceTableNameStr;
            _option.DtosNamespace = _option.BaseNamespace + "Model";
            _option.ModelsNamespace = _option.BaseNamespace + "Model";
            _option.RepositoriesNamespace = _option.BaseNamespace + "Repository";
            _option.IRepositoriesNamespace = _option.BaseNamespace + "Repository";
            _option.IServicsNamespace = _option.BaseNamespace + "Service";
            _option.ServicesNamespace = _option.BaseNamespace + "Service";
            _option.ApiControllerNamespace = _option.BaseNamespace + "Admin.WebApi";

            //CodeGeneraterService codeGeneraterService = new();
            //List<DbColumnInfo> listField = codeGeneraterService.GetColumnInfo(dto.dbName, dbTableInfo.TableName);
            GenerateSingle(dbTableInfo?.Columns, dbTableInfo, dto);

            //GenerateDtoProfile(_option.ModelsNamespace, profileContent, ifExsitedCovered);
        }

        /// <summary>
        /// 单表生成代码
        /// </summary>
        /// <param name="listField">表字段集合</param>
        /// <param name="tableInfo">表信息</param>
        /// <param name="dto"></param>
        public static void GenerateSingle(List<GenTableColumn> listField, GenTable tableInfo, GenerateDto dto)
        {
            var modelTypeName = tableInfo.ClassName;//表名对应C# 实体类名

            string PKName = "id";
            string PKType = "int";
            string modelContent = "";//数据库模型字段
            string InputDtoContent = "";//输入模型
            //string outputDtoContent = "";//输出模型
            string updateColumn = "";//修改数据映射字段
            string vueViewListContent = string.Empty;//Vue列表输出内容
            string vueViewFormContent = string.Empty;//Vue表单输出内容 
            string vueViewEditFromContent = string.Empty;//Vue变量输出内容
            string vueViewEditFromRuleContent = string.Empty;//Vue数据校验
            string vueJsMethod = string.Empty;//Vue js自定义方法

            //循环表字段信息
            foreach (GenTableColumn dbFieldInfo in listField)
            {
                string columnName = dbFieldInfo.ColumnName;

                if (dbFieldInfo.IsInsert || dbFieldInfo.IsEdit)
                {
                    vueViewEditFromContent += $"        {columnName}: undefined,\n";
                }
                if (dbFieldInfo.IsPk || dbFieldInfo.IsIncrement)
                {
                    PKName = dbFieldInfo.CsharpField;
                    PKType = dbFieldInfo.CsharpType;
                }
                //编辑字段
                if (dbFieldInfo.IsEdit)
                {
                    updateColumn += $"              {dbFieldInfo.CsharpField} = parm.{dbFieldInfo.CsharpField},\n";
                }

                modelContent += CodeGenerateTemplate.GetModelTemplate(dbFieldInfo);
                vueViewFormContent += CodeGenerateTemplate.GetVueViewFormContent(dbFieldInfo);
                vueJsMethod += CodeGenerateTemplate.GetVueJsMethod(dbFieldInfo);
                vueViewListContent += CodeGenerateTemplate.GetTableColumn(dbFieldInfo);
                vueViewEditFromRuleContent += CodeGenerateTemplate.GetFormRules(dbFieldInfo);
                InputDtoContent += CodeGenerateTemplate.GetDtoContent(dbFieldInfo);
            }
            ReplaceDto replaceDto = new();
            replaceDto.PKName = PKName;
            replaceDto.PKType = PKType;
            replaceDto.ModelTypeName = modelTypeName;
            replaceDto.ModelProperty = modelContent;
            replaceDto.TableName = tableInfo.TableName;
            replaceDto.TableDesc = tableInfo.TableComment;
            replaceDto.InputDtoProperty = InputDtoContent;
            replaceDto.updateColumn = updateColumn;
            replaceDto.VueJsMethod = vueJsMethod;
            replaceDto.VueViewEditFormHtml = vueViewEditFromContent;
            replaceDto.VueViewFormHtml = vueViewFormContent;
            replaceDto.VueViewEditFormRuleContent = vueViewEditFromRuleContent;
            replaceDto.VueViewListHtml = vueViewListContent;

            if (dto.genFiles.Contains(1))
            {
                GenerateModels(replaceDto, dto);
            }
            if (dto.genFiles.Contains(2))
            {
                GenerateInputDto(replaceDto, dto);
            }
            if (dto.genFiles.Contains(3))
            {
                GenerateRepository(replaceDto, dto);
            }
            if (dto.genFiles.Contains(4))
            {
                GenerateIService(replaceDto, dto);
                GenerateService(replaceDto, dto);
            }
            if (dto.genFiles.Contains(5))
            {
                GenerateControllers(replaceDto, dto);
            }
            if (dto.genFiles.Contains(6))
            {
                GenerateVueViews(replaceDto, dto);
            }
            //GenerateIRepository(modelTypeName, modelTypeDesc, keyTypeName, ifExsitedCovered);
            //GenerateOutputDto(modelTypeName, modelTypeDesc, outputDtocontent, ifExsitedCovered);
        }


        #region 生成Model

        /// <summary>
        /// 生成Models文件
        /// </summary>
        /// <param name="generateDto"></param>
        /// <param name="replaceDto">替换实体</param>
        private static Tuple<string, string> GenerateModels(ReplaceDto replaceDto, GenerateDto generateDto)
        {
            var parentPath = "..";
            //../ZR.Model
            var servicesPath = parentPath + "\\" + _option.ModelsNamespace + "\\Models\\";
            if (!Directory.Exists(servicesPath))
            {
                Directory.CreateDirectory(servicesPath);
            }
            // ../ZR.Model/Models/User.cs
            var fullPath = servicesPath + replaceDto.ModelTypeName + ".cs";
            Console.WriteLine(fullPath);
            if (File.Exists(fullPath) && !generateDto.coverd)
                return Tuple.Create(fullPath, "");
            var content = ReadTemplate("ModelTemplate.txt");
            content = content
                .Replace("{ModelsNamespace}", _option.ModelsNamespace)
                .Replace("{ModelTypeName}", replaceDto.ModelTypeName)
                .Replace("{TableNameDesc}", replaceDto.TableDesc)
                .Replace("{KeyTypeName}", replaceDto.PKName)
                .Replace("{PropertyName}", replaceDto.ModelProperty)
                .Replace("{TableName}", replaceDto.TableName);
            WriteAndSave(fullPath, content);
            return Tuple.Create(fullPath, content);
        }


        /// <summary>
        /// 生成InputDto文件
        /// </summary>
        /// <param name="generateDto"></param>
        /// <param name="replaceDto">替换实体</param>
        private static Tuple<string, string> GenerateInputDto(ReplaceDto replaceDto, GenerateDto generateDto)
        {
            var parentPath = "..";
            var servicesPath = parentPath + "\\" + _option.ModelsNamespace + "\\Dto\\";
            if (!Directory.Exists(servicesPath))
            {
                Directory.CreateDirectory(servicesPath);
            }
            // ../ZR.Model/Dto/User.cs
            var fullPath = servicesPath + replaceDto.ModelTypeName + "Dto.cs";
            Console.WriteLine(fullPath);
            if (File.Exists(fullPath) && !generateDto.coverd)
                return Tuple.Create(fullPath, ""); ;
            var content = ReadTemplate("InputDtoTemplate.txt");
            content = content
                .Replace("{DtosNamespace}", _option.DtosNamespace)
                .Replace("{ModelsNamespace}", _option.ModelsNamespace)
                .Replace("{TableNameDesc}", replaceDto.TableDesc)
                .Replace("{PropertyName}", replaceDto.InputDtoProperty)
                .Replace("{ModelTypeName}", replaceDto.ModelTypeName);
            WriteAndSave(fullPath, content);
            return Tuple.Create(fullPath, content);
        }
        #endregion

        #region 生成Repository

        /// <summary>
        /// 生成Repository层代码文件
        /// </summary>
        /// <param name="generateDto"></param>
        /// <param name="replaceDto">替换实体</param>
        private static Tuple<string, string> GenerateRepository(ReplaceDto replaceDto, GenerateDto generateDto)
        {
            var parentPath = "..";
            var repositoryPath = parentPath + "\\" + _option.RepositoriesNamespace + "\\Repositories\\";
            if (!Directory.Exists(repositoryPath))
            {
                Directory.CreateDirectory(repositoryPath);
            }
            var fullPath = repositoryPath + "\\" + replaceDto.ModelTypeName + "Repository.cs";
            Console.WriteLine(fullPath);
            if (File.Exists(fullPath) && !generateDto.coverd)
                return Tuple.Create(fullPath, "");
            var content = ReadTemplate("RepositoryTemplate.txt");
            content = content.Replace("{ModelsNamespace}", _option.ModelsNamespace)
                //.Replace("{IRepositoriesNamespace}", _option.IRepositoriesNamespace)
                .Replace("{RepositoriesNamespace}", _option.RepositoriesNamespace)
                .Replace("{ModelTypeName}", replaceDto.ModelTypeName)
                .Replace("{TableNameDesc}", replaceDto.TableDesc)
                .Replace("{TableName}", replaceDto.TableName);

            WriteAndSave(fullPath, content);
            return Tuple.Create(fullPath, content);
        }

        #endregion

        #region 生成Service
        /// <summary>
        /// 生成IService文件
        /// </summary>
        /// <param name="generateDto"></param>
        /// <param name="replaceDto">替换实体</param>
        private static Tuple<string, string> GenerateIService(ReplaceDto replaceDto, GenerateDto generateDto)
        {
            var parentPath = "..";
            var iServicesPath = parentPath + "\\" + _option.IServicsNamespace + "\\Business\\IBusService\\";
            if (!Directory.Exists(iServicesPath))
            {
                Directory.CreateDirectory(iServicesPath);
            }
            var fullPath = $"{iServicesPath}\\I{replaceDto.ModelTypeName}Service.cs";
            Console.WriteLine(fullPath);
            if (File.Exists(fullPath) && !generateDto.coverd)
                return Tuple.Create(fullPath, "");
            var content = ReadTemplate("IServiceTemplate.txt");
            content = content.Replace("{ModelsNamespace}", _option.ModelsNamespace)
                .Replace("{TableNameDesc}", replaceDto.TableDesc)
                .Replace("{DtosNamespace}", _option.DtosNamespace)
                .Replace("{IServicsNamespace}", _option.IServicsNamespace)
                .Replace("{RepositoriesNamespace}", _option.RepositoriesNamespace)
                .Replace("{ModelTypeName}", replaceDto.ModelTypeName);

            WriteAndSave(fullPath, content);
            return Tuple.Create(fullPath, content);
        }

        /// <summary>
        /// 生成Service文件
        /// </summary>
        private static Tuple<string, string> GenerateService(ReplaceDto replaceDto, GenerateDto generateDto)
        {
            var parentPath = "..";
            var servicesPath = parentPath + "\\" + _option.ServicesNamespace + "\\Business\\";
            if (!Directory.Exists(servicesPath))
            {
                Directory.CreateDirectory(servicesPath);
            }
            var fullPath = servicesPath + replaceDto.ModelTypeName + "Service.cs";
            Console.WriteLine(fullPath);
            if (File.Exists(fullPath) && !generateDto.coverd)
                return Tuple.Create(fullPath, "");
            var content = ReadTemplate("ServiceTemplate.txt");
            content = content
                .Replace("{IRepositoriesNamespace}", _option.IRepositoriesNamespace)
                .Replace("{DtosNamespace}", _option.DtosNamespace)
                .Replace("{IServicsNamespace}", _option.IServicsNamespace)
                .Replace("{TableNameDesc}", replaceDto.TableDesc)
                .Replace("{ModelsNamespace}", _option.ModelsNamespace)
                .Replace("{ServicesNamespace}", _option.ServicesNamespace)
                .Replace("{ModelTypeName}", replaceDto.ModelTypeName);

            WriteAndSave(fullPath, content);
            return Tuple.Create(fullPath, content);
        }

        #endregion

        #region 生成Controller
        /// <summary>
        /// 生成控制器ApiControllers文件
        /// </summary>
        private static Tuple<string, string> GenerateControllers(ReplaceDto replaceDto, GenerateDto generateDto)
        {
            var parentPath = "..";
            var servicesPath = parentPath + "\\" + _option.ApiControllerNamespace + "\\Controllers\\business\\";
            if (!Directory.Exists(servicesPath))
            {
                Directory.CreateDirectory(servicesPath);
            }
            var fullPath = servicesPath + replaceDto.ModelTypeName + "Controller.cs";
            Console.WriteLine(fullPath);
            if (File.Exists(fullPath) && !generateDto.coverd)
                return Tuple.Create(fullPath, "");
            var content = ReadTemplate("ControllersTemplate.txt");
            content = content
                .Replace("{ApiControllerNamespace}", _option.ApiControllerNamespace)
                .Replace("{ServicesNamespace}", _option.ServicesNamespace)
                .Replace("{ModelsNamespace}", _option.ModelsNamespace)
                .Replace("{TableDesc}", replaceDto.TableDesc)
                .Replace("{ModelName}", replaceDto.ModelTypeName)
                .Replace("{Permission}", replaceDto.ModelTypeName.ToLower())
                .Replace("{PrimaryKey}", replaceDto.PKName)
                .Replace("{UpdateColumn}", replaceDto.updateColumn)
                .Replace("{KeyTypeName}", replaceDto.PKType);
            WriteAndSave(fullPath, content);
            return Tuple.Create(fullPath, content);
        }
        #endregion

        #region 生成Vue页面
        /// <summary>
        /// 生成Vue页面
        private static Tuple<string, string> GenerateVueViews(ReplaceDto replaceDto, GenerateDto generateDto)
        {
            //var parentPath = "..\\CodeGenerate";//若要生成到项目中将路径改成 “..\\ZR.Vue\\src”
            var parentPath = "..\\ZR.Vue\\src";
            var servicesPath = parentPath + "\\views\\" + FirstLowerCase(replaceDto.ModelTypeName);
            if (!Directory.Exists(servicesPath))
            {
                Directory.CreateDirectory(servicesPath);
            }
            var fullPath = servicesPath + "\\" + "index.vue";
            Console.WriteLine(fullPath);
            if (File.Exists(fullPath) && !generateDto.coverd)
                return Tuple.Create(fullPath, ""); ;
            var content = ReadTemplate("VueTemplate.txt");
            content = content
                .Replace("{fileClassName}", FirstLowerCase(replaceDto.ModelTypeName))
                .Replace("{VueViewListContent}", replaceDto.VueViewListHtml)//查询 table列
                .Replace("{VueViewFormContent}", replaceDto.VueViewFormHtml)//添加、修改表单
                .Replace("{ModelTypeName}", replaceDto.ModelTypeName)
                .Replace("{Permission}", replaceDto.ModelTypeName.ToLower())
                .Replace("{VueViewEditFormContent}", replaceDto.VueViewEditFormHtml)
                .Replace("{vueJsMethod}", replaceDto.VueJsMethod)
                //.Replace("{VueViewEditFromBindContent}", vueViewEditFromBindContent)
                //.Replace("{VueViewSaveBindContent}", vueViewSaveBindContent)
                .Replace("{primaryKey}", FirstLowerCase(replaceDto.PKName))
                .Replace("{VueViewEditFormRuleContent}", replaceDto.VueViewEditFormRuleContent);//添加、修改表单验证规则
            WriteAndSave(fullPath, content);

            //api js
            servicesPath = parentPath + "\\api\\";
            Directory.CreateDirectory(servicesPath);
            fullPath = servicesPath + "\\" + FirstLowerCase(replaceDto.ModelTypeName) + ".js";
            Console.WriteLine(fullPath);
            if (File.Exists(fullPath) && !generateDto.coverd)
                return Tuple.Create(fullPath, "");
            content = ReadTemplate("VueJsTemplate.txt");
            content = content
                .Replace("{ModelTypeName}", replaceDto.ModelTypeName)
                .Replace("{ModelTypeDesc}", replaceDto.TableDesc);
            //.Replace("{fileClassName}", fileClassName)
            WriteAndSave(fullPath, content);
            return Tuple.Create(fullPath, content);
        }

        #endregion

        #region 帮助方法

        /// <summary>
        /// 如果有前缀替换将前缀替换成空，替换下划线"_"为空再将首字母大写
        /// 表名转换成C#类名
        /// </summary>
        /// <param name="tableName"></param>
        /// <returns></returns>
        public static string GetClassName(string tableName)
        {
            bool autoRemovePre = ConfigUtils.Instance.GetAppConfig(GenConstants.Gen_autoPre, false);
            string tablePrefix = ConfigUtils.Instance.GetAppConfig<string>(GenConstants.Gen_tablePrefix);

            if (!string.IsNullOrEmpty(tablePrefix) && autoRemovePre)
            {
                string[] searcList = tablePrefix.Split(",", StringSplitOptions.RemoveEmptyEntries);
                for (int i = 0; i < searcList.Length; i++)
                {
                    if (!string.IsNullOrEmpty(searcList[i].ToString()))
                    {
                        tableName = tableName.Replace(searcList[i], "");
                    }
                }
            }
            return tableName.Substring(0, 1).ToUpper() + tableName[1..].Replace("_", "");
        }

        /// <summary>
        /// 首字母转小写，输出前端
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string FirstLowerCase(string str)
        {
            return string.IsNullOrEmpty(str) ? str : str.Substring(0, 1).ToLower() + str[1..];
        }

        /// <summary>
        /// 获取前端标签名
        /// </summary>
        /// <param name="columnDescription"></param>
        /// <param name="columnName"></param>
        /// <returns></returns>
        public static string GetLabelName(string columnDescription, string columnName)
        {
            return string.IsNullOrEmpty(columnDescription) ? columnName : columnDescription;
        }
        /// <summary>
        /// 从代码模板中读取内容
        /// </summary>
        /// <param name="templateName">模板名称，应包括文件扩展名称。比如：template.txt</param>
        /// <returns></returns>
        private static string ReadTemplate(string templateName)
        {
            var path = AppDomain.CurrentDomain.BaseDirectory;
            string fullName = $"{path}\\Template\\{templateName}";
            string temp = fullName;
            string str = "";
            if (!File.Exists(temp))
            {
                return str;
            }
            StreamReader sr = null;
            try
            {
                sr = new StreamReader(temp);
                str = sr.ReadToEnd(); // 读取文件
            }
            catch { }
            sr?.Close();
            sr?.Dispose();
            return str;

        }

        /// <summary>
        /// 写文件
        /// </summary>
        /// <param name="fileName"></param>
        /// <param name="content"></param>
        private static void WriteAndSave(string fileName, string content)
        {
            try
            {
                //实例化一个文件流--->与写入文件相关联
                using var fs = new FileStream(fileName, FileMode.Create, FileAccess.Write);
                //实例化一个StreamWriter-->与fs相关联
                using var sw = new StreamWriter(fs);
                //开始写入
                sw.Write(content);
                //清空缓冲区
                sw.Flush();
                //关闭流
                sw.Close();
                fs.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine("写入文件出错了:" + ex.Message);
            }
        }

        #endregion
    }
}