using ConfigHelper;
using log4net.Config;
using OnlineStore.Common;
using System.Runtime.InteropServices;

namespace TinLabel
{
    internal static class Program
    {
        /// <summary>
        ///  The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {

            Config.LoadMyConfig(new Setting().GetType());
            _ = new Mutex(true, Application.ProductName, out bool ret);
            if (!ret)
            {
                IntPtr formhwnd = FindWindow(null, Setting.App_Title);
                ShowWindow(formhwnd, SW_RESTORE);
                SwitchToThisWindow(formhwnd, true);
                //MessageBox.Show("该程序已经启动", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            var currnetdrive = System.IO.Path.GetPathRoot(Application.StartupPath);
            var drives = System.IO.DriveInfo.GetDrives();
            foreach (var drive in drives)
            {
                if (drive.Name.ToLower() == "c:\\"
                    || drive.Name.ToLower() == currnetdrive.ToLower()
                    )
                {

                    var spacegb = drive.AvailableFreeSpace / 1024 / 1024 / 1024;
                    if (spacegb <= 2)
                    {
                        MessageBox.Show(drive.Name + " is not enough disk space, check it please.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                }
            }

            
            Application.ThreadException += Application_ThreadException;
            Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
            AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;

            Environment.CurrentDirectory = Application.StartupPath;
            XmlConfigurator.Configure();

            // To customize application configuration such as set high DPI settings or default font,
            // see https://aka.ms/applicationconfiguration.
            ApplicationConfiguration.Initialize();
            Application.Run(new Form1());
        }

        private static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            LogUtil.error(e.ToString());
        }

        private static void Application_ThreadException(object sender, ThreadExceptionEventArgs e)
        {
            LogUtil.error(e.ToString());
        }



        #region Win32函数的声明

        /// <summary>
        /// 找到某个窗口与给出的类别名和窗口名相同窗口 
        /// </summary>
        /// <param name="lpClassName">类别名</param>
        /// <param name="lpWindowName">窗口名</param>
        /// <returns>成功找到返回窗口句柄,否则返回null</returns>
        [DllImport("user32.dll")]
        public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        /// <summary>
        /// 切换到窗口并把窗口设入前台,类似 SetForegroundWindow方法的功能
        /// </summary>
        /// <param name="hWnd">窗口句柄</param>
        /// <param name="fAltTab">True代表窗口正在通过Alt/Ctrl +Tab被切换</param>
        [DllImport("user32.dll ", SetLastError = true)]
        static extern void SwitchToThisWindow(IntPtr hWnd, bool fAltTab);

        /// <summary>
        ///  设置窗口的显示状态 
        /// </summary>
        /// <param name="hWnd">窗口句柄</param>
        /// <param name="cmdShow">指示窗口如何被显示</param>
        /// <returns>如果窗体之前是可见，返回值为非零；如果窗体之前被隐藏，返回值为零</returns>
        [DllImport("user32.dll", EntryPoint = "ShowWindow", CharSet = CharSet.Auto)]
        public static extern int ShowWindow(IntPtr hwnd, int nCmdShow);
        public const int SW_RESTORE = 9;

        #endregion
    }
}