/*
 *所有关于Sys_DbService类的业务代码应在此处编写
*可使用repository.调用常用方法，获取EF/Dapper等信息
*如果需要事务请使用repository.DbContextBeginTransaction
*也可使用DBServerProvider.手动获取数据库相关信息
*用户信息、权限、角色等使用UserContext.Current操作
*Sys_DbServiceService对增、删、改查、导入、导出、审核业务代码扩展参照ServiceFunFilter
*/
using VolPro.Core.BaseProvider;
using VolPro.Core.Extensions.AutofacManager;
using VolPro.Entity.DomainModels;
using System.Linq;
using VolPro.Core.Utilities;
using System.Linq.Expressions;
using VolPro.Core.Extensions;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.AspNetCore.Http;
using VolPro.Sys.IRepositories;
using VolPro.Core.CacheManager;
using VolPro.Core.Configuration;
using System;
using VolPro.Core.Services;
using VolPro.Core.DBManager;
using VolPro.Core.Dapper;
using VolPro.Core.DbSqlSugar;

namespace VolPro.Sys.Services
{
    public partial class Sys_DbServiceService
    {
        private readonly IHttpContextAccessor _httpContextAccessor;
        private readonly ISys_DbServiceRepository _repository;//访问数据库

        [ActivatorUtilitiesConstructor]
        public Sys_DbServiceService(
            ISys_DbServiceRepository dbRepository,
            IHttpContextAccessor httpContextAccessor
            )
        : base(dbRepository)
        {
            _httpContextAccessor = httpContextAccessor;
            _repository = dbRepository;
            //多租户会用到这init代码，其他情况可以不用
            //base.Init(dbRepository);
        }
        WebResponseContent webResponse = new WebResponseContent();
        public override PageGridData<Sys_DbService> GetPageData(PageDataOptions options)
        {
            var data = base.GetPageData(options);
            foreach (var item in data.rows)
            {
                item.Pwd = null;
            }
            return data;
        }
        public override WebResponseContent Add(SaveModel saveDataModel)
        {
            return DbCache.Reload(base.Add(saveDataModel));
        }
        public override WebResponseContent Update(SaveModel saveModel)
        {
            if (saveModel.MainData.TryGetValue("Pwd", out object value))
            {
                if (string.IsNullOrEmpty(value?.ToString()))
                {
                    saveModel.MainData.Remove("Pwd");
                }
            }
            return DbCache.Reload(base.Update(saveModel));
        }
        public override WebResponseContent Del(object[] keys, bool delList = true)
        {
            return DbCache.Reload(base.Del(keys, delList));
        }

        public WebResponseContent CreateDb(Guid id)
        {
            var item = DbCache.GetDbInfo(id);
            try
            {
                if (item == null)
                {
                    return webResponse.Error("请配置数据库名、ip地址、帐号与密码");
                }
                string connectionString=DbCache.InitConnection(item,"master");
                var dapper = DBServerProvider.Db; //DBServerProvider.GetServiceDb(item.DbServiceId);//DBServerProvider.GetSqlDapper(item.DbServiceId.ToString());
                string sql = " select name from sys.databases where name = @name";
                var _dbName = dapper.ExecuteScalar(sql, new { name = item.DatabaseName });
                if (_dbName != null && _dbName.ToString() != "")
                {
                    return webResponse.Error($"【{ item.DatabaseName}】已存在");
                }
                sql = GetCopyDbSql(item.DatabaseName);
                dapper.SetTimout(60 * 3).ExcuteNonQuery(sql, new { item.DatabaseName, id });
            }
            catch (Exception ex)
            {
                string message = $"创建数据库异常:ID:{item.DatabaseName},异常信息：{ex.Message}";
                Console.WriteLine(message);
                Logger.Error(message);
                return webResponse.Error(message);
            }
            return webResponse.OK("创建成功");
        }


        private string GetCopyDbSql(string dbName)
        {
            string DBPath = AppSetting.GetSettingString("DBPath");
            string DBBackPath = AppSetting.GetSettingString("DBBackPath");
            string DB_Empty = "DB_Empty";
            string sql = @$"USE [master] 
                CREATE DATABASE [{dbName}]
                 CONTAINMENT = NONE
                 ON  PRIMARY 
                ( NAME = N'{dbName}', FILENAME = N'{DBPath}\{dbName}.mdf' , SIZE = 5120KB , FILEGROWTH = 1024KB )
                 LOG ON 
                ( NAME = N'{dbName}_log', FILENAME = N'{DBPath}\{dbName}_log.ldf' , SIZE = 2048KB , FILEGROWTH = 10%)
                
                ALTER DATABASE [{dbName}] SET COMPATIBILITY_LEVEL = 110
                
                ALTER DATABASE [{dbName}] SET ANSI_NULL_DEFAULT OFF 
                
                ALTER DATABASE [{dbName}] SET ANSI_NULLS OFF 
                
                ALTER DATABASE [{dbName}] SET ANSI_PADDING OFF 
                
                ALTER DATABASE [{dbName}] SET ANSI_WARNINGS OFF 
                
                ALTER DATABASE [{dbName}] SET ARITHABORT OFF 
                
                ALTER DATABASE [{dbName}] SET AUTO_CLOSE OFF 
                
                ALTER DATABASE [{dbName}] SET AUTO_CREATE_STATISTICS ON 
                
                ALTER DATABASE [{dbName}] SET AUTO_SHRINK OFF 
                
                ALTER DATABASE [{dbName}] SET AUTO_UPDATE_STATISTICS ON 
                
                ALTER DATABASE [{dbName}] SET CURSOR_CLOSE_ON_COMMIT OFF 
                
                ALTER DATABASE [{dbName}] SET CURSOR_DEFAULT  GLOBAL 
                
                ALTER DATABASE [{dbName}] SET CONCAT_NULL_YIELDS_NULL OFF 
                
                ALTER DATABASE [{dbName}] SET NUMERIC_ROUNDABORT OFF 
                
                ALTER DATABASE [{dbName}] SET QUOTED_IDENTIFIER OFF 
                
                ALTER DATABASE [{dbName}] SET RECURSIVE_TRIGGERS OFF 
                
                ALTER DATABASE [{dbName}] SET  DISABLE_BROKER 
                
                ALTER DATABASE [{dbName}] SET AUTO_UPDATE_STATISTICS_ASYNC OFF 
                
                ALTER DATABASE [{dbName}] SET DATE_CORRELATION_OPTIMIZATION OFF 
                
                ALTER DATABASE [{dbName}] SET PARAMETERIZATION SIMPLE 
                
                ALTER DATABASE [{dbName}] SET READ_COMMITTED_SNAPSHOT OFF 
                
                ALTER DATABASE [{dbName}] SET  READ_WRITE 
                
                ALTER DATABASE [{dbName}] SET RECOVERY FULL 
                
                ALTER DATABASE [{dbName}] SET  MULTI_USER 
                
                ALTER DATABASE [{dbName}] SET PAGE_VERIFY CHECKSUM  
                
                ALTER DATABASE [{dbName}] SET TARGET_RECOVERY_TIME = 0 SECONDS 
                
                IF NOT EXISTS (SELECT name FROM sys.filegroups WHERE is_default=1 AND name = N'PRIMARY') ALTER DATABASE [{dbName}] MODIFY FILEGROUP [PRIMARY] DEFAULT
                 
                USE [master]
               --备份数据库
               BACKUP DATABASE [DB_Empty] TO  DISK = N'{DBBackPath}\DB_Empty.bak' WITH  COPY_ONLY, NOFORMAT, INIT,
			   NAME = N'{DB_Empty}', SKIP, NOREWIND, NOUNLOAD,  STATS = 10
                DECLARE @tomdf NVARCHAR(50)=N'{DBPath}\{dbName}.mdf'
                DECLARE @tolog NVARCHAR(50)=N'{DBPath}\{dbName}.ldf'
                  RESTORE DATABASE [{dbName}] FROM  DISK = N'{DBBackPath}\{DB_Empty}.bak' WITH  FILE = 1,
                  MOVE  N'{DB_Empty}' TO @tomdf,  MOVE N'{DB_Empty}_log' TO @tolog,  NOUNLOAD,  REPLACE,  STATS = 5;";

            return sql;
        }

    }
}