using Avalonia;
using Avalonia.Controls.ApplicationLifetimes;
using Avalonia.Markup.Xaml;
using Avalonia.Markup.Xaml.Styling;
using YZWater.Avalonia.Controls;
using YZWater.Avalonia.Views;
using YZWater.Core.Services;

namespace YZWater.Avalonia;

public partial class App : Application
{
    private ResourceInclude? _darkTheme;
    private ResourceInclude? _lightTheme;

    public override void Initialize()
    {
        AvaloniaXamlLoader.Load(this);

        _darkTheme = new ResourceInclude(new Uri("avares://YZWater.Avalonia/Themes/IndustrialTheme.axaml"))
            { Source = new Uri("avares://YZWater.Avalonia/Themes/IndustrialTheme.axaml") };
        _lightTheme = new ResourceInclude(new Uri("avares://YZWater.Avalonia/Themes/IndustrialThemeLight.axaml"))
            { Source = new Uri("avares://YZWater.Avalonia/Themes/IndustrialThemeLight.axaml") };

        ThemeService.Instance.ThemeChanged += ApplyTheme;

        // 全局异常处理
        AppDomain.CurrentDomain.UnhandledException += (s, e) =>
        {
            Serilog.Log.Fatal(e.ExceptionObject as Exception, "未处理的异常");
        };
        TaskScheduler.UnobservedTaskException += (s, e) =>
        {
            Serilog.Log.Error(e.Exception, "未观察的任务异常");
            e.SetObserved();
        };
    }

    public override void OnFrameworkInitializationCompleted()
    {
        // 初始化服务
        DatabaseService.Initialize();
        PlcService.Initialize();

        // 加载主题和语言偏好
        ThemeService.Instance.LoadFromConfig();
        LanguageService.Instance.LoadFromConfig();

        // 应用当前主题
        ThemeHelper.SetTheme(ThemeService.Instance.IsDarkTheme);

        // 初始化轮询和报警服务
        PlcPollingService.Instance.Start();
        AlarmService.Instance.Start();

        // 启动数据日志
        var dataLogger = new DataLoggingService(PlcPollingService.Instance);
        dataLogger.Start();

        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
        {
            desktop.MainWindow = new MainWindow();

            // 窗口关闭时清理
            desktop.ShutdownRequested += (_, _) =>
            {
                PlcPollingService.Instance.Dispose();
                AlarmService.Instance.Dispose();
                dataLogger.Dispose();
                PlcService.Dispose();
                DatabaseService.Dispose();
            };
        }

        base.OnFrameworkInitializationCompleted();
    }

    private void ApplyTheme()
    {
        var resources = Resources.MergedDictionaries;
        if (resources.Count == 0) return;

        var targetTheme = ThemeService.Instance.IsDarkTheme ? _darkTheme : _lightTheme;
        if (targetTheme == null) return;

        resources.Clear();
        resources.Add(targetTheme);
        ThemeHelper.SetTheme(ThemeService.Instance.IsDarkTheme);
    }
}