personal-toolbox/PersonalToolBox/App.xaml.cs

using Microsoft.Extensions.DependencyInjection;
using System.Windows;
using PersonalToolBox.Services;
using PersonalToolBox.Views;

namespace PersonalToolBox;

/// <summary>
/// WPF 应用程序入口，负责依赖注入容器初始化和启动主窗口
/// </summary>
public partial class App : Application
{
    public static IServiceProvider Services { get; private set; } = null!;

    protected override void OnStartup(StartupEventArgs e)
    {
        base.OnStartup(e);

        var services = new ServiceCollection();
        ConfigureServices(services);
        Services = services.BuildServiceProvider();

        // 启动时加载配置文件（含路径验证与容错）
        var dataService = Services.GetRequiredService<IDataService>();
        dataService.Load();

        var mainWindow = Services.GetRequiredService<MainWindow>();
        mainWindow.Show();
    }

    /// <summary>
    /// 注册所有服务到 DI 容器（单例模式）
    /// </summary>
    private static void ConfigureServices(IServiceCollection services)
    {
        // 日志服务
        services.AddSingleton<ILogService, LogService>();

        // 数据持久化服务
        services.AddSingleton<IDataService, JsonDataService>();

        // 主窗口
        services.AddSingleton<MainWindow>();
    }
}