using Serilog;
using Serilog.Events;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using WinForm.NET4.Sample.Extensions;

namespace WinForm.NET4.Sample
{
 static class Program
 {
 /// <summary>
 /// 该函数设置由不同线程产生的窗口的显示状态。
 /// </summary>
 /// <param name="hWnd">窗口句柄</param>
 /// <param name="cmdShow">指定窗口如何显示。查看允许值列表,请查阅ShowWlndow函数的说明部分。</param>
 /// <returns>如果函数原来可见,返回值为非零;如果函数原来被隐藏,返回值为零。</returns>
 [DllImport("User32.dll")]
 private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);
 /// <summary>
 /// 该函数将创建指定窗口的线程设置到前台,并且激活该窗口。键盘输入转向该窗口,并为用户改各种可视的记号。系统给创建前台窗口的线程分配的权限稍高于其他线程。
 /// </summary>
 /// <param name="hWnd">将被激活并被调入前台的窗口句柄。</param>
 /// <returns>如果窗口设入了前台,返回值为非零;如果窗口未被设入前台,返回值为零。</returns>
 [DllImport("User32.dll")]
 private static extern bool SetForegroundWindow(IntPtr hWnd);
 private const int WS_SHOWMAXIMIZE = 3; //最大化显示窗口
 private const int WS_SHOW = 5;//以原来大小和位置显示
 
 /// <summary>
 /// The main entry point for the application.
 /// </summary>
 [STAThread]
 static void Main()
 {
 Application.EnableVisualStyles();
 Application.SetCompatibleTextRenderingDefault(true);

 //处理主线程异常
 Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);

 //处理其他线程的异常
 AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
 //设置Log配置
 SetupLogger();

 //只允许单个实例运行
 Process instance = RunningInstance();

 if (instance == null)
 {

 Login login = new Login();

 if (login.ShowDialog() == DialogResult.Yes)
 {
 Application.Run(new Shell());

 }

 }
 else
 {
 HandleRunningInstance(instance);

 }

 }

 /// <summary>
 /// 获取正在运行的实例,没有运行的实例返回null;
 /// </summary>
 static Process RunningInstance()
 {
 Process current = Process.GetCurrentProcess();
 Process[] processes = Process.GetProcessesByName(current.ProcessName);
 foreach (Process process in processes)
 {
 if (process.Id != current.Id)
 {
 if (process.MainModule.FileName == current.MainModule.FileName)
 {
 return process;
 }
 }
 }
 return null;
 }

 /// <summary>
 /// 显示已运行的程序。
 /// </summary>
 static void HandleRunningInstance(Process instance)
 {

 ShowWindowAsync(instance.MainWindowHandle, WS_SHOWMAXIMIZE); //最大显示,WS_SHOW 正常显示
 
 SetForegroundWindow(instance.MainWindowHandle); //放到前端
 }

 /// <summary>
 /// 配置Log
 /// </summary>
 static void SetupLogger()
 {

 Log.Logger = new LoggerConfiguration()
 .MinimumLevel.Debug()
 .MinimumLevel.Override("Microsoft", LogEventLevel.Error)
 .Enrich.FromLogContext()
 .Enrich.WithLoginInfo()//显示自定义的log信息
 .WriteTo.Logger(x => x.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Error || e.Level == LogEventLevel.Fatal)
 .WriteTo.File(@"Logs/Error.log",
 outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} [{Level:u3}] {Message:lj}{NewLine}User Name: {UserName}{NewLine}User Id: {UserId}{NewLine}Company Name: {CompanyName}{NewLine}{Exception}",
 fileSizeLimitBytes: 1_000_000,
 rollOnFileSizeLimit: true,
 shared: true,
 flushToDiskInterval: TimeSpan.FromSeconds(1))
 )
 .WriteTo.Logger(x => x.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Warning)
 .WriteTo.File(@"Logs/Warning.log",
 fileSizeLimitBytes: 1_000_000,
 rollOnFileSizeLimit: true,
 shared: true,
 flushToDiskInterval: TimeSpan.FromSeconds(1))
 )
 .WriteTo.Logger(x => x.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Information)
 .WriteTo.File(@"Logs/Info.log",

 fileSizeLimitBytes: 1_000_000,
 rollOnFileSizeLimit: true,
 shared: true,
 flushToDiskInterval: TimeSpan.FromSeconds(1))
 )
 .WriteTo.Logger(x => x.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Debug)
 .WriteTo.File(@"Logs/Debug.log",
 fileSizeLimitBytes: 1_000_000,
 rollOnFileSizeLimit: true,
 shared: true,
 flushToDiskInterval: TimeSpan.FromSeconds(1))
 )
 //也可以自动发送log信息到指定的邮箱
 //.WriteTo.Email(new EmailConnectionInfo{
 // FromEmail = ConfigurationManager.AppSettings["FromAddress"],
 // ToEmail = ConfigurationManager.AppSettings["ToAddress"],
 // MailServer = ConfigurationManager.AppSettings["MailServer"],
 // NetworkCredentials = new NetworkCredential
 // {
 // UserName = ConfigurationManager.AppSettings["Username"],
 // Password = ConfigurationManager.AppSettings["Password"]
 // },
 // EnableSsl = true,
 // Port = 465,
 // EmailSubject = ConfigurationManager.AppSettings["EmailSubject"]
 // },
 // outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} [{Level:u3}] {Message:lj}{NewLine}User Name: {UserName}{NewLine}User Id: {UserId}{NewLine}Company Name: {CompanyName}{NewLine}{Exception}",
 // batchPostingLimit: 10,
 // restrictedToMinimumLevel: Serilog.Events.LogEventLevel.Error
 // )
 .CreateLogger();
 }

 /// <summary>
 /// 处理主线程异常
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
 {
 // All exceptions thrown by the main thread are handled over this method
 CatchExceptionDetails(e.Exception);
 }

 /// <summary>
 /// 处理其他线程的异常
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
 {
 // All exceptions thrown by additional threads are handled in this method
 CatchExceptionDetails(e.ExceptionObject as Exception);
 }

 /// <summary>
 /// Log 错误信息,并弹框警示
 /// </summary>
 /// <param name="ex"></param>
 static void CatchExceptionDetails(Exception ex)
 {
 // Do logging of exception details
 Log.Error(ex, "");

 var message = String.Format("对不起, 系统出错了.\r\n" + "{0}\r\n" + "{1}\r\n" + "请联系技术人员.", ex.Message, ex.StackTrace);
 MessageBox.Show(message, @"未知错误", MessageBoxButtons.OK, MessageBoxIcon.Error);



 }
 }
}