MyAvaloniaDemo/Extensions/ServiceCollectionExtensions.cs

using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using AuroraDesk.Services;
using AuroraDesk.ViewModels;
using ReactiveUI;
using Splat;
using System;

namespace AuroraDesk.Extensions;

/// <summary>
/// 鏈嶅姟闆嗗悎鎵╁睍鏂规硶
/// </summary>
public static class ServiceCollectionExtensions
{
    /// <summary>
    /// 娣诲姞 ReactiveUI 鐩稿叧鏈嶅姟
    /// </summary>
    /// <param name="services">鏈嶅姟闆嗗悎</param>
    /// <returns>鏈嶅姟闆嗗悎</returns>
    public static IServiceCollection AddReactiveUI(this IServiceCollection services)
    {
        // 娉ㄥ唽 ReactiveUI 鐩稿叧鏈嶅姟
        services.AddSingleton<AppViewModel>();
        services.AddSingleton<IScreen>(provider => provider.GetRequiredService<AppViewModel>());
        
        return services;
    }
    
    /// <summary>
    /// 娣诲姞涓氬姟鏈嶅姟
    /// </summary>
    /// <param name="services">鏈嶅姟闆嗗悎</param>
    /// <returns>鏈嶅姟闆嗗悎</returns>
    public static IServiceCollection AddBusinessServices(this IServiceCollection services)
    {
        // 娉ㄥ唽涓氬姟鏈嶅姟
        services.AddTransient<IDataService, DataService>();
        services.AddTransient<IApiService, ApiService>();
        
        // 娉ㄥ唽璧勬簮鏈嶅姟
        services.AddSingleton<IResourceService, ResourceService>();
        
        return services;
    }
    
    /// <summary>
    /// 娣诲姞 ViewModel 鏈嶅姟
    /// </summary>
    /// <param name="services">鏈嶅姟闆嗗悎</param>
    /// <returns>鏈嶅姟闆嗗悎</returns>
    public static IServiceCollection AddViewModels(this IServiceCollection services)
    {
        // 娉ㄥ唽 MainWindowViewModel锛岄€氳繃 AppViewModel 鑾峰彇
        // 娉ㄦ剰锛氶渶瑕佸厛娉ㄥ唽 AppViewModel
        services.AddTransient<MainWindowViewModel>(provider =>
        {
            var appViewModel = provider.GetRequiredService<AppViewModel>();
            return appViewModel.MainWindowViewModel;
        });
        
        return services;
    }
}