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using System.IO;
using System.Reflection;
using System.Windows.Threading;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Wpf.Ui;
using Wpf.Ui.DependencyInjection;
using wpfChat.Data;
using wpfChat.LLM;
using wpfChat.Models;
using wpfChat.Services;
using wpfChat.ViewModels.Pages;
using wpfChat.ViewModels.Windows;
using wpfChat.Views.Pages;
using wpfChat.Views.Windows;
namespace wpfChat
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App
{
// The.NET Generic Host provides dependency injection, configuration, logging, and other services.
// https://docs.microsoft.com/dotnet/core/extensions/generic-host
// https://docs.microsoft.com/dotnet/core/extensions/dependency-injection
// https://docs.microsoft.com/dotnet/core/extensions/configuration
// https://docs.microsoft.com/dotnet/core/extensions/logging
private static readonly IHost _host = Host
.CreateDefaultBuilder()
.ConfigureAppConfiguration(c => { c.SetBasePath(Path.GetDirectoryName(AppContext.BaseDirectory)); })
.ConfigureServices((context, services) =>
{
services.AddNavigationViewPageProvider();
// 1. 首先注册数据库初始化服务，并同时注册为单例供其他服务使用
services.AddSingleton<DatabaseInitializationService>();
services.AddHostedService<DatabaseInitializationService>(provider =>
provider.GetRequiredService<DatabaseInitializationService>());
services.AddHostedService<ApplicationHostService>();
// Theme manipulation
services.AddSingleton<IThemeService, ThemeService>();
// TaskBar manipulation
services.AddSingleton<ITaskBarService, TaskBarService>();
// Service containing navigation, same as INavigationWindow... but without window
services.AddSingleton<INavigationService, NavigationService>();
// Main window with navigation
services.AddSingleton<INavigationWindow, MainWindow>();
services.AddSingleton<MainWindowViewModel>();
// 添加LLM服务;
services.AddSingleton<LLMService>(_ =>
new LLMService(AppConfig.ModelPath));
services.AddSingleton<HomePage>();
services.AddSingleton<HomeViewModel>();
services.AddSingleton<ChatPage>();
services.AddSingleton<ChatViewModel>();
services.AddSingleton<SettingsPage>();
services.AddSingleton<SettingsViewModel>();
}).Build();
/// <summary>
/// Gets services.
/// </summary>
public static IServiceProvider Services
{
get { return _host.Services; }
}
/// <summary>
/// Occurs when the application is loading.
/// </summary>
private async void OnStartup(object sender, StartupEventArgs e)
{
await _host.StartAsync();
}
/// <summary>
/// Occurs when the application is closing.
/// </summary>
private async void OnExit(object sender, ExitEventArgs e)
{
await _host.StopAsync();
_host.Dispose();
}
/// <summary>
/// Occurs when an exception is thrown by an application but not handled.
/// </summary>
private void OnDispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
{
// For more info see https://docs.microsoft.com/en-us/dotnet/api/system.windows.application.dispatcherunhandledexception?view=windowsdesktop-6.0
}
}
}