using JinYuan.Helper;
using JinYuan.VirtualDataLibrary;
using System;
using System.Configuration;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Threading;
using System.Windows.Forms;

namespace LargeSquareOne
{
    internal static class Program
    {

        #region 调用系统API

        [DllImport("User32.dll")]
        private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);

        [DllImport("User32.dll")]
        private static extern bool SetForegroundWindow(IntPtr hWnd);

        private const int SW_MAXIMIZE = 3;

        #endregion 调用系统API

        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            LoggerHelp.WriteInfo("Application 启动");
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            string strname = Process.GetCurrentProcess().ProcessName;
            int a = Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName).Count();
            if (Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName).Count() > 1)
            {
                MessageBox.Show("软件已经启动，请在后台确认。");
                Thread.Sleep(1000);
                Environment.Exit(0);
                return;
            }
            Process instance = GetRunningInstance();
            if (instance == null)
            {
                AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
                ReadConfig();
                try
                {
                    {
                        FrmLogin frm = new FrmLogin();
                        if (frm.ShowDialog() == DialogResult.OK)
                        {
                            Application.Run(new FrmMain());
                        }
                    }

                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            }
            else
            {
                // 激活以前的实例
                HandleRunningInstance(instance);
            }
        }


        public static void ReadConfig()
        {
            IniConfigHelper.CreateIniFile(Application.StartupPath + "\\Config\\", "Configure.ini");
            string connString = ConfigurationManager.ConnectionStrings["connString"].ToString();
            string connString2 = ConfigurationManager.ConnectionStrings["connString2"].ToString();
            string strDBType = ConfigurationManager.ConnectionStrings["connDbType"].ToString();
            var connDbType = (SqlSugar.DbType)Enum.Parse(typeof(SqlSugar.DbType), strDBType);
            CommonMethods.db.SetConnectionStr(connString, connDbType);
            CommonMethods.dbServer.SetConnectionStr(connString2, connDbType);
            CommonMethods.sysConfig.SwipeCardMode = Convert.ToBoolean(IniConfigHelper.ReadIniData("配置信息", "开启刷卡模式", "false"));
        }



        /// <summary>
        ///  当某个异常未被捕获时出现，回调方法
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            try
            {
                Exception ex = (Exception)e.ExceptionObject;

                LoggerHelp.WriteEX(ex);
                MessageBox.Show($"程序出现大异常，请联系 【金源自动化软件设计部】。\r\n异常信息: {ex.Message}\r\n异常堆栈：{ex.StackTrace}",
                      "致命错误", MessageBoxButtons.OK, MessageBoxIcon.Stop);
            }
            finally
            {
                Application.Exit();
            }
        }

        /// <summary>
        /// 返回正在运行的程序进程
        /// </summary>
        /// <returns></returns>
        public static Process GetRunningInstance()
        {
            Process current = Process.GetCurrentProcess();
            Process[] processes = Process.GetProcessesByName(current.ProcessName);

            foreach (Process process in processes)
            {
                if (process.Id != current.Id)
                    if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName)
                        return process;
            }
            return null;
        }

        /// <summary>
        /// 已经有了就把它激活，并将其窗口放置最前端
        /// </summary>
        /// <param name="instance"></param>
        public static void HandleRunningInstance(Process instance)
        {
            ShowWindowAsync(instance.MainWindowHandle, SW_MAXIMIZE);
            SetForegroundWindow(instance.MainWindowHandle);
        }
    }
}