using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Forms;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;



namespace formula_manage.Windows
{
    /// <summary>
    /// SQL_BAK.xaml 的交互逻辑
    /// </summary>
    public partial class SQL_BAK : Window
    {
        public SQL_BAK()
        {
            System.Windows.MessageBox.Show("注意此功能仅作用与本地数据库(Dispensing)对于远端数据库的操作可能失败如果需要继续操作单击确定", "SQL", MessageBoxButton.OK, MessageBoxImage.Exclamation);  //连接失败提示
            WindowStartupLocation = WindowStartupLocation.CenterScreen;
            InitializeComponent();
            this.Closing += Window_Closing;   //添加窗口关闭事件
        }

        bool SQLBAK;
        bool SQLTIME;
        int Time;
        int i;
        string SQLIP;
        string SQLNAME;
        bool SQLMOD;
        string SQLUSER;
        string SQLPASS;

        public string INIPath = Convert.ToString(System.AppDomain.CurrentDomain.BaseDirectory) + "formula.ini";

        private void Window_SQLBAK(object sender, RoutedEventArgs e)  //打开页面
        {
            UserClass.IniFile.IniFiles Configini = new UserClass.IniFile.IniFiles(INIPath);   //读配置文件

            SQLIP = Configini.IniReadvalue("SQL_SERVER", "SQL1");    //读配置文件
            SQLNAME = Configini.IniReadvalue("SQL_SERVER", "SQL2");
            int.TryParse(Configini.IniReadvalue("SQL_SERVER", "SQL3"), out i);   //读数据库状态配置文件
            if (i == 0) SQLMOD = false;
            else SQLMOD = true;           
            SQLUSER = Configini.IniReadvalue("SQL_SERVER", "SQL4");
            SQLPASS = Configini.IniReadvalue("SQL_SERVER", "SQL5");

            SQLBAK = Boolean.Parse(Configini.IniReadvalue("SQL_BAK", "S1"));
            SQL_DISPEN_bak.Text = Configini.IniReadvalue("SQL_BAK", "S2");
            SQLTIME = Boolean.Parse(Configini.IniReadvalue("SQL_BAK", "S3"));
            int.TryParse(Configini.IniReadvalue("SQL_BAK", "S4"), out Time);
            if (Time == 0) SQL_TIME.Text = "日";
            else if(Time == 1) SQL_TIME.Text = "周";
            else if (Time == 2) SQL_TIME.Text = "月";
            else if (Time == 3) SQL_TIME.Text = "季";
            else if (Time == 4) SQL_TIME.Text = "年";

            SQL_bak.IsChecked = SQLBAK;
            SQL_DISPEN_bak.IsEnabled = SQLBAK;
            SQL_DISPEN_BUT.IsEnabled = SQLBAK;
            SQL_bak_time.IsChecked = SQLTIME;
            SQL_TIME.IsEnabled = SQLTIME;
        }

        private void SQLBAK_Checked(object sender, RoutedEventArgs e)  //自定义备份地址状态
        {
            SQLBAK = SQL_bak.IsChecked.GetValueOrDefault();
            SQL_DISPEN_bak.IsEnabled = SQLBAK;
            SQL_DISPEN_BUT.IsEnabled = SQLBAK;
        }
       
        private void SQL_bak_time_Checked(object sender, RoutedEventArgs e)   //自动保存
        {
            SQLTIME = SQL_bak_time.IsChecked.GetValueOrDefault();
            SQL_TIME.IsEnabled = SQLTIME;
        }

        private void Button_Click(object sender, RoutedEventArgs e)  //SQL_DISPEN_bak路径选择按钮
        {
            FolderBrowserDialog Dilog = new FolderBrowserDialog();
            Dilog.SelectedPath = SQL_DISPEN_bak.Text;  //打开目录
            Dilog.ShowNewFolderButton = false;   //不显示新建文件夹按钮
                                                 //
            if (Dilog.ShowDialog() == System.Windows.Forms.DialogResult.OK ) 
            {              
                SQL_DISPEN_bak.Text = Dilog.SelectedPath;   //返回选择的字符串
            }
        }

        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)     //窗口关闭事件
        {
            UserClass.IniFile.IniFiles Configini = new UserClass.IniFile.IniFiles(INIPath);
            Configini.IniWritevalue("SQL_BAK", "S1", SQL_bak.IsChecked.GetValueOrDefault().ToString());   //保存自定义备份地址配置
            Configini.IniWritevalue("SQL_BAK", "S2", SQL_DISPEN_bak.Text);   //保存备份地址
            Configini.IniWritevalue("SQL_BAK", "S3", SQL_bak_time.IsChecked.GetValueOrDefault().ToString());   //保存自动备份配置
            if (SQL_TIME.Text == "日") Time = 0;
            else if (SQL_TIME.Text == "周") Time = 1;
            else if (SQL_TIME.Text == "月") Time = 2;
            else if (SQL_TIME.Text == "季") Time = 3;
            else if (SQL_TIME.Text == "年") Time = 4;

            Configini.IniWritevalue("SQL_BAK", "S4", Time.ToString());   //保存自动备份周期
        }

        string Connstr_SC;

        private bool Backup(string dbName, string filePath) // 备份数据库
        {
            if (!SQLMOD)    //连接数据库测试
            {
                Connstr_SC = "server=" + SQLIP + ";database=" + SQLNAME + ";Trusted_Connection=SSPI";
            }
            else
            {
                Connstr_SC = "server=" + SQLIP + ";database=" + SQLNAME + ";User ID=" + SQLUSER + ";Password=" + SQLPASS;
            }
            SqlConnection connection = new SqlConnection();
            connection.ConnectionString = Connstr_SC;
            connection.Open();
            SqlCommand command = new SqlCommand();
            command.Connection = connection;
            command.CommandText = string.Format("backup database {0} to disk = '{1}'", dbName, filePath);

            try
            {
                command.ExecuteNonQuery();
                return true;
            }
            catch
            {
                return false;
            }
            finally
            {
                connection.Close();
            }
        }

        private bool Restore(string dbName, string filePath)  // 还原数据库
        {
            if (!SQLMOD)    //连接数据库测试
            {
                Connstr_SC = "server=" + SQLIP + ";database=" + SQLNAME + ";Trusted_Connection=SSPI";
            }
            else
            {
                Connstr_SC = "server=" + SQLIP + ";database=" + SQLNAME + ";User ID=" + SQLUSER + ";Password=" + SQLPASS;
            }
            SqlConnection connection = new SqlConnection(Connstr_SC);
            SqlCommand command = new SqlCommand();
            command.Connection = connection;

            // 还原数据库
            connection.Open();
            command.CommandText = string.Format("use master restore database {0} from disk = '{1}' with replace", dbName, filePath);
            try
            {
                command.ExecuteNonQuery();
            }
            catch
            {
                return false;
            }
            finally
            {
                connection.Close();
            }
            return true;
        }

        private async void Button_Click_1(object sender, RoutedEventArgs e)
        {
            bool ok;
            System.DateTime.Now.ToString("yyyy-MM-dd_HH_mm_ss");

            if (!SQLMOD)    //连接数据库测试
            {
                Connstr_SC = "server=" + SQLIP + ";database=" + SQLNAME + ";Trusted_Connection=SSPI";
            }
            else
            {
                Connstr_SC = "server=" + SQLIP + ";database=" + SQLNAME + ";User ID=" + SQLUSER + ";Password=" + SQLPASS;
            }

            try
            {
                SqlConnection conn_SC = new SqlConnection(Connstr_SC);
                await conn_SC.OpenAsync();     //连接数据库
                conn_SC.Close();
            }
            catch (Exception)
            {
                System.Windows.MessageBox.Show("数据库错误", "ERR", MessageBoxButton.OK, MessageBoxImage.Exclamation);  //连接失败提示
                return;
            }

            if ((bool)SQL_bak.IsChecked)
            {
                ok = Backup(SQLNAME, SQL_DISPEN_bak.Text + "\\" + SQLNAME + System.DateTime.Now.ToString("yyyy_MM_dd_HHmmss") + ".bak");  //指定地址备份
            }
            else 
            {
                ok = Backup(SQLNAME, "C:\\SUNLIGHT\\" + SQLNAME + System.DateTime.Now.ToString("yyyy_MM_dd_HHmmss") + ".bak");  //默认备份到文档文件夹
            }               
               
            if (ok)                          
            {                    
                System.Windows.MessageBox.Show("备份成功");              
            }              
            else             
            {               
                System.Windows.MessageBox.Show("备份失败");            
            }
        }

        private async void Button_Click_2(object sender, RoutedEventArgs e)
        {          
            if (!SQLMOD)    //连接数据库测试
            {
                Connstr_SC = "server=" + SQLIP + ";database=" + SQLNAME + ";Trusted_Connection=SSPI";
            }
            else
            {
                Connstr_SC = "server=" + SQLIP + ";database=" + SQLNAME + ";User ID=" + SQLUSER + ";Password=" + SQLPASS;
            }

            try
            {
                SqlConnection conn_SC = new SqlConnection(Connstr_SC);
                await conn_SC.OpenAsync();     //连接数据库
                conn_SC.Close();
            }
            catch (Exception)
            {
                System.Windows.MessageBox.Show("数据库错误", "ERR", MessageBoxButton.OK, MessageBoxImage.Exclamation);  //连接失败提示
                return;
            }

            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Title = "还原数据库";
            openFileDialog.Filter = "备份文件(*.bak)|*.bak";
            //openFileDialog.RestoreDirectory = true;
            if ((bool)SQL_bak.IsChecked)
            {
                openFileDialog.InitialDirectory = SQL_DISPEN_bak.Text;
            }
            else
            {
                openFileDialog.InitialDirectory = "C:\\SUNLIGHT\\";
            }
            if (openFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                bool ok = Restore(SQLNAME, openFileDialog.FileName);
                if (ok)
                {
                    System.Windows.MessageBox.Show("还原成功");
                }
                else
                {
                    System.Windows.MessageBox.Show("还原失败");
                }
            }


          /*  if ((bool)SQL_bak.IsChecked)
            {
                ok = Backup(SQLNAME, SQL_DISPEN_bak.Text + "\\" + SQLNAME + ".bak");  //指定地址备份
            }
            else
            {
                ok = Backup(SQLNAME, Convert.ToString(Environment.SpecialFolder.MyDocuments) + SQLNAME + ".bak");  //默认备份到文档文件夹
            }

            if (ok)             
            {         
                System.Windows.MessageBox.Show("还原成功");         
            }           
            else           
            {             
                System.Windows.MessageBox.Show("还原失败");
            }      */  
        }

    }
}