using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;

namespace AnQing
{
    /// <summary>
    /// App.xaml 的交互逻辑
    /// </summary>
    public partial class App : Application
    {
        private static Mutex _mutex;
        private const string AppName = "AnQing";
        public static bool IsDuplicateInstance { get; private set; } = false; // 标记重复运行

        protected override void OnStartup(StartupEventArgs e)
        {
            bool createdNew;
            _mutex = new Mutex(true, "Global\\" + AppName, out createdNew);

            if (!createdNew)
            {
                // 标记为重复运行
                IsDuplicateInstance = true;

                // 显示提示
                MessageBox.Show("程序已在运行中！", "提示", MessageBoxButton.OK, MessageBoxImage.Warning);

                // 直接关闭应用
                Application.Current.Shutdown();
                return;
            }

            base.OnStartup(e);
        }

        protected override void OnExit(ExitEventArgs e)
        {
            _mutex?.ReleaseMutex();
            _mutex?.Dispose();
            base.OnExit(e);
        }

        public static void Restart()
        {
            // 释放互斥锁
            _mutex.ReleaseMutex();

            string executablePath = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AnQing.exe");
            System.Diagnostics.Process.Start(executablePath);
            //System.Diagnostics.Process.Start(Application.ResourceAssembly.Location);

            Application.Current.Shutdown();
        }
    }
}