using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using OrpaonVision.ConfigApp.DependencyInjection;
using OrpaonVision.ConfigApp.Infrastructure.Diagnostics;
using OrpaonVision.ConfigApp.Infrastructure.Persistence.Options;
using OrpaonVision.ConfigApp.Infrastructure.Services;
using OrpaonVision.ConfigApp.Views;
using OrpaonVision.Core.Abstractions;
using System.Windows;

namespace OrpaonVision.ConfigApp
{
    /// <summary>
    /// Interaction logic for App.xaml
    /// </summary>
    public partial class App : Application
    {
        private ServiceProvider? _serviceProvider;
        private GlobalExceptionHandler? _globalExceptionHandler;

        /// <summary>
        /// 获取应用程序的服务提供程序。
        /// </summary>
        public ServiceProvider ServiceProvider => _serviceProvider ?? throw new InvalidOperationException("服务提供程序未初始化。");

        /// <inheritdoc />
        protected override void OnStartup(StartupEventArgs e)
        {
            base.OnStartup(e);

            var configuration = new ConfigurationBuilder()
                .SetBasePath(AppContext.BaseDirectory)
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
                .AddJsonFile("appsettings.Development.json", optional: true, reloadOnChange: true)
                .Build();

            var services = new ServiceCollection();
            services.AddConfigAppServices(configuration);
            services.AddSingleton<MainWindow>();

            _serviceProvider = services.BuildServiceProvider();

            _globalExceptionHandler = _serviceProvider.GetRequiredService<GlobalExceptionHandler>();
            _globalExceptionHandler.Register();

            var logger = _serviceProvider.GetRequiredService<IAppLogger>();
            logger.LogInformation("ConfigApp 启动完成。");

            var persistenceOptions = _serviceProvider.GetRequiredService<PersistenceOptions>();
            if (persistenceOptions.AutoInitializeOnStartup)
            {
                var initializer = _serviceProvider.GetRequiredService<IDataStoreInitializer>();
                var initResult = initializer.Initialize();

                if (!initResult.Succeeded)
                {
                    logger.LogWarning($"数据库初始化未完成：{initResult.Code} - {initResult.Message}", initResult.TraceId);
                }
                else
                {
                    logger.LogInformation("数据库初始化完成。", initResult.TraceId);
                }
            }

            var mainWindow = _serviceProvider.GetRequiredService<MainWindow>();
            
            // 显示登录窗口
            var loginWindow = new LoginWindow(
                _serviceProvider.GetRequiredService<CurrentUserContext>(),
                _serviceProvider.GetRequiredService<IUserService>());
            
            var loginResult = loginWindow.ShowDialog();
            if (loginResult != true)
            {
                // 用户取消登录，退出应用
                logger.LogInformation("用户取消登录，应用退出");
                Shutdown();
                return;
            }
            
            mainWindow.Show();
        }

        /// <inheritdoc />
        protected override void OnExit(ExitEventArgs e)
        {
            _serviceProvider?.GetService<IAppLogger>()?.LogInformation("ConfigApp 正在退出。");
            _globalExceptionHandler?.Dispose();
            _serviceProvider?.Dispose();
            base.OnExit(e);
        }
    }

}