using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
using System.IO;

using System.Diagnostics;

namespace TiesTest
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {            
            if(SingleInstanceCheck() == false)
            {
                Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
                AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                frmLogin ifrmLogin = new frmLogin();
                ifrmLogin.ShowDialog();
                if (ifrmLogin.DialogResult.Equals(DialogResult.OK))
                {
                    ifrmLogin.Close();
                    Application.Run(new frmMain());
                    //Application.Run(frmMain.InstanceObject());
                }
            }
        }
        static bool SingleInstanceCheck()
        { 
            bool result = false;
            try
            {
                Process me = Process.GetCurrentProcess();
                Process[] us = Process.GetProcesses();
                Process another = null;
                foreach (var p in us)
                {
                    try
                    {
                        if (p.Id != me.Id && p.MainModule.FileName == me.MainModule.FileName)
                        {
                            another = p;
                            break;
                        }
                    }
                    catch (Exception ex)
                    {
                        //logger.Error(ex);
                    }
                }
                if (another != null)
                {
                    MessageBox.Show("程序已运行", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Question);
                    result = true;
                }
            }
            catch (Exception e)
            {
                MessageBox.Show(e.StackTrace + "\n" + e.Message);
                result = true;
            }
            return result;
        }
        static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
        {
            LogUnhandledException(e.Exception.Message + e.Exception.StackTrace);
        }
        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            LogUnhandledException(e.ExceptionObject.ToString());
        }
        static void LogUnhandledException(string msg)
        {
            StreamWriter sw = new StreamWriter(Application.StartupPath + "\\AppErrorLog.txt", true);
            sw.WriteLine(DateTime.Now.ToString() + msg);
            sw.Close();
        }
    }
}