using Microsoft.Win32;
using System.Diagnostics;
using System.IO;
using System.Management;
using System.Reflection;
using System.Windows;
using UtilLib;

namespace OpenTapEditor;

public class GlobalConfig
{
    public double GlobalFontSize { get; set; } = 14;
}
public class GlobalConfigHolder
{
    public static GlobalConfig Config { get; internal set; }
}

/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : Application
{
    private void WriteRegister()
    {
        string Company = "JingCe", Program = "SequenceEditor";
        try
        {
            string registryPath = @$"SOFTWARE\{Company}\{Program}";

            using RegistryKey key = Registry.CurrentUser.CreateSubKey(registryPath, true)
                ?? throw new Exception("无法创建或打开注册表键");
            string path = AppDomain.CurrentDomain.BaseDirectory;
            key.SetValue("Location", path, RegistryValueKind.String);
        }
        catch (Exception ex)
        {
            //log.Error("Write Register Failed.", ex);
        }
    }

    public static Process GetProcess()
    {
        Process cur = Process.GetCurrentProcess();
        string exePath = Assembly.GetExecutingAssembly().Location;
        string query = $"SELECT ProcessId FROM Win32_Process WHERE ExecutablePath = '{exePath.Replace("\\", "\\\\")}'";
        using (var searcher = new ManagementObjectSearcher(query))
        {
            foreach (var obj in searcher.Get())
            {
                int processId = Convert.ToInt32(obj["ProcessId"]);
                if (processId != cur.Id)
                {
                    return Process.GetProcessById(processId);
                }
            }
        }
        return null;
    }

    private void LoadConfig()
    {
        string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "GlobalSetting.xml");
        if (!File.Exists(path))
        {
            GlobalConfigHolder.Config = new GlobalConfig();
        }
        try
        {
            GlobalConfig config = XmlHelper.DeserializeFromXml<GlobalConfig>(path);
            GlobalConfigHolder.Config = config;
        }
        catch (Exception ex)
        {
            GlobalConfigHolder.Config = new GlobalConfig();
        }

        this.Resources["GlobalFontSize"] = GlobalConfigHolder.Config.GlobalFontSize;
    }

    private Mutex mutex;
    private void Application_Startup(object sender, StartupEventArgs e)
    {
        var process = GetProcess();

        mutex = new Mutex(true, "OpenTapEditor_OnlyRun_CRNS");
        if (mutex.WaitOne(0, false))//&& process == null
        {
            WriteRegister();
            LoadConfig();
           
            //LoadingWindow window = new LoadingWindow();
            MainWindow window = new MainWindow();
            window.Show();
        }
        else
        {
            MessageBox.Show("程序已经在运行！", "提示");
            this.Shutdown();
        }

    }
}