using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
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;
using System.Runtime.InteropServices;
using System.Data.SqlClient;
using System.Data;
using System.Security.Policy;
using System.IO;
using formula_manage.Windows;

namespace formula_manage
{
    /// <summary>
    /// Login.xaml 的交互逻辑
    /// </summary>
    public partial class Login : Window
    {

        string logpath = System.Environment.CurrentDirectory + "\\Log";//日志文件目录
        string logPath = "" + System.Environment.CurrentDirectory + "\\Log\\Log.txt";//日志文件
        string Log_time = "[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "]：";

        public string INIPath = Convert.ToString(System.AppDomain.CurrentDomain.BaseDirectory) + "formula.ini"; //配置文件路径

        DataTable logindataTable = new DataTable();   //建立login缓存

    public Login()
        {
            WindowStartupLocation = WindowStartupLocation.CenterScreen;
            InitializeComponent();

            System.IO.DirectoryInfo log = new System.IO.DirectoryInfo(@logpath);//生成日志文件目录
            if (!File.Exists(logPath))//检查日志文件并写入启动日志
            {
                FileStream fs = new FileStream(logPath, FileMode.CreateNew, FileAccess.Write);//创建写入文件 
                StreamWriter wr = new StreamWriter(fs);//创建文件
                wr.WriteLine(Log_time + "FORMULA_start");
                wr.Close();
            }
            else
            {
                FileStream fs = new FileStream(logPath, FileMode.Append, FileAccess.Write);
                StreamWriter wr = new StreamWriter(fs);//创建文件
                wr.WriteLine(Log_time + "FORMULA_start");
                wr.Close();
            }

        }

        private void Button_Click(object sender, RoutedEventArgs e)  //退出按钮事件
        {
            this.Close();
        }

        private void Button_Click_1(object sender, RoutedEventArgs e)  //登录按钮事件
        {
            string user = User.Text;
            string pasword = Pasword.Password; ;

            if (User.Text == "")    //检查用户名输入
            {
                System.Windows.MessageBox.Show("请输入用户名");
                return;
            }

            if ((user == "engineer" || user == "ENGINEER") && (pasword == "engineer" || pasword == "ENGINEER"))   //确认账号是否是工程师
            {
                App.USER_Purview = "ENGINEER";//传入用户名

                Window window = Window.GetWindow(this);
                MainWindow Main = new MainWindow();
                window.Close();
                Main.ShowDialog();//实例化并置顶打开信息窗口
            }        
            else
            {
                string var_sql; 

                if (pasword =="") var_sql = "[UserCode]='" + user + "' and [PassWord] is null";  //查询字符
                else var_sql = "[UserCode]='" + user + "' and [PassWord]='" + pasword + "'";

                var loginOK = this.logindataTable.Select(var_sql).FirstOrDefault();   //查询账号信息是否正确，不正确返回null

                if (loginOK != null)
                {
                    App.USER_Purview = User.Text;//传入用户名

                    Window window = Window.GetWindow(this);
                    MainWindow Main = new MainWindow();
                    window.Close();
                    Main.ShowDialog();//实例化并置顶打开窗口
                                    
                }
                else
                System.Windows.MessageBox.Show("账号或密码错误");
            }
        }

        private void SearchBox_OnKeyDownd(object sender, System.Windows.Input.KeyEventArgs e)  //回车跳转功能
        {
            if (e.Key == Key.Enter)
            {
                //SendKeys.SendWait("{Tab}");
                UserClass.PressKey.PressKeys(Keys.Tab, false);
                UserClass.PressKey.PressKeys(Keys.Tab, true);
            }
        }

        string TEXT_SQLIP;
        string TEXT_SQLNAME;
        string TEXT_SQMOD;
        string TEXT_SQLUSER;
        string TEXT_SQLPASWOR;
        string Connstr_SC;
        string Connstr_DBC;
        bool SQL2;

        private async void Window_Loaded(object sender, RoutedEventArgs e)
        {
            logon.IsEnabled = false;  //关闭登录按钮

            UserClass.IniFile.IniFiles Configini = new UserClass.IniFile.IniFiles(INIPath);

            if (!Boolean.Parse(Configini.IniReadvalue("SOFTWARE_SET", "L1")))//连接状态显示是否生效 1有效
            {
                DISPENLINK.Visibility = Visibility.Hidden;  //不显示
                DBCLINK.Visibility = Visibility.Hidden;
                EXLINK.Visibility = Visibility.Hidden;
                USERLINK.Visibility = Visibility.Hidden;
            }

            TEXT_SQLIP = Configini.IniReadvalue("SQL_SERVER", "SQL1");    //读配置文件
            TEXT_SQLNAME = Configini.IniReadvalue("SQL_SERVER", "SQL2");
            TEXT_SQMOD = Configini.IniReadvalue("SQL_SERVER", "SQL3");
            TEXT_SQLUSER = Configini.IniReadvalue("SQL_SERVER", "SQL4");
            TEXT_SQLPASWOR = Configini.IniReadvalue("SQL_SERVER", "SQL5");
            SQL2 = Boolean.Parse(Configini.IniReadvalue("SQL_SERVER", "SQL6"));  //数据库对象2是否生效
            if (TEXT_SQMOD == "0")  //判断连接方式
            {
                Connstr_SC = "server=" + TEXT_SQLIP + ";database=" + TEXT_SQLNAME + ";Trusted_Connection=SSPI";
            }
            else 
            {
                Connstr_SC = "server=" + TEXT_SQLIP + ";database=" + TEXT_SQLNAME + ";User ID=" + TEXT_SQLUSER + ";Password=" + TEXT_SQLPASWOR;
            }

            SqlConnection conn_SC = new SqlConnection(Connstr_SC);

            try
            {
               await conn_SC.OpenAsync();
            }catch (Exception) 
            {
                DISPENLINK.Background = Brushes.Red; //连接失败红色
                System.Windows.MessageBox.Show("连接数据库失败");
                Windows.Sql sql = new Windows.Sql();
                sql.ShowDialog();//实例化并置顶打开数据库设置窗口 
                return;
            }                  
            conn_SC.Close();  //关闭连接
            DISPENLINK.Background = Brushes.Green; //连接成功绿色

            if (SQL2)     //数据库对象2生效则检查
            {
                TEXT_SQLIP = Configini.IniReadvalue("SQL_SERVER", "SQL7");    //读配置文件
                TEXT_SQLNAME = Configini.IniReadvalue("SQL_SERVER", "SQL8");
                TEXT_SQMOD = Configini.IniReadvalue("SQL_SERVER", "SQL9");
                TEXT_SQLUSER = Configini.IniReadvalue("SQL_SERVER", "SQL10");
                TEXT_SQLPASWOR = Configini.IniReadvalue("SQL_SERVER", "SQL11");
                if (TEXT_SQMOD == "0")  //判断连接方式
                {
                    Connstr_DBC = "server=" + TEXT_SQLIP + ";database=" + TEXT_SQLNAME + ";Trusted_Connection=SSPI";
                }
                else
                {
                    Connstr_DBC = "server=" + TEXT_SQLIP + ";database=" + TEXT_SQLNAME + ";User ID=" + TEXT_SQLUSER + ";Password=" + TEXT_SQLPASWOR;
                }
                SqlConnection conn_DBC = new SqlConnection(Connstr_DBC);

                try 
                {
                    await conn_DBC.OpenAsync();
                }catch (Exception) 
                {
                    DBCLINK.Background = Brushes.Red; //连接失败红色
                    System.Windows.MessageBox.Show("连接数据库失败");
                    Windows.Sql sql = new Windows.Sql();
                    sql.ShowDialog();//实例化并置顶打开数据库设置窗口 
                    return;
                }
                DBCLINK.Background = Brushes.Green; //连接成功绿色
            }

            logon.IsEnabled = true;  //允许登录按钮
            UserClass.PressKey.PressKeys(Keys.Tab, false);
            UserClass.PressKey.PressKeys(Keys.Tab, true);

            if (DISPENLINK.Background == Brushes.Green)
            {
                string user_sql = "SELECT UserCode ,PassWord ,UserSetup ,Capacity ,GROUP_CODE ,Note FROM [Dispensing].[dbo].[UserAccount] WHERE Capacity != 0";//查询语句            

                try
                {
                    await conn_SC.OpenAsync();    //打开数据连接
                    SqlDataAdapter user_data = new SqlDataAdapter(user_sql, Connstr_SC);   //查询

                    user_data.Fill(logindataTable);    //查询结果存入缓存  
                    conn_SC.Close();  //关闭连接

                    User.ItemsSource = logindataTable.DefaultView;    //数据加入表格
                }
                catch (Exception)
                {
                    System.Windows.MessageBox.Show("请求信息失败，检查连接");
                    return;
                }
            }


        }
    }
}