using System.Windows;
using System.Windows.Threading;
using Store.Management;
using Store.Management.Views;
using Store.Management.ViewModels;
using Store.Management.Framework.Controls;
using Store.Management.Api;
using System.Net;
using System.Net.Http;
using System.Text;
using Prism.Ioc;
using Prism.Services.Dialogs;
using DialogWindow = Store.Management.Framework.Controls.DialogWindow;
class Program
{
    [STAThread]
    static int Main(string[] args)
    {
        var handler = new LoginHandler();
        using var httpClient = new HttpClient(handler);
        using var client = new StoreApiClient(new ApiClientOptions { BaseUrl = new Uri("http://localhost:14312/api/") }, httpClient);
        var app = new App(client);
        app.InitializeComponent();
        int exitCode = 0;
        app.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, new Action(async () =>
        {
            try
            {
                for (int attempt = 0; attempt < 100 && !app.Windows.OfType<DialogWindow>().Any(window => window.Content is LoginWindow && window.IsLoaded); attempt++)
                {
                    await Task.Delay(20);
                }
                DialogWindow loginHost = app.Windows.OfType<DialogWindow>().Single(window => window.Content is LoginWindow);
                var login = (LoginWindow)loginHost.Content;
                LoginViewModel loginVm = (LoginViewModel)login.DataContext;
                if (args.Contains("--cancel-login") || args.Contains("--close-login"))
                {
                    if (args.Contains("--close-login"))
                    {
                        loginHost.Close();
                    }
                    else
                    {
                        loginVm.CancelCommand.Execute(null);
                    }
                    Check(!app.Windows.OfType<MainWindow>().Any(), "取消登录不得创建主窗口");
                    Console.WriteLine("PASS: startup login cancellation/window-close shuts down without opening the main window.");
                    return;
                }
                var userName = (System.Windows.Controls.TextBox)login.FindName("UserNameBox");
                var password = (System.Windows.Controls.PasswordBox)login.FindName("PasswordBox");
                var error = (System.Windows.Controls.TextBlock)login.FindName("ErrorText");
                foreach (string key in new[] { "PrimaryTextBrush", "SecondaryTextBrush", "RegionBrush", "BorderBrush", "DangerBrush", "ButtonPrimary" })
                {
                    Check(login.TryFindResource(key) is not null, $"登录主题资源缺失：{key}");
                }
                Check(loginHost.IsVisible && loginHost.DataContext == login.DataContext, "Prism 弹窗与登录页面共享 ViewModel");
                Check(userName.MaxLength == LoginViewModel.InputMaxLength && password.MaxLength == LoginViewModel.InputMaxLength, "登录输入限长");
                await loginVm.LoginCommand.Execute();
                Check(error.Text == "请输入用户名。", "用户名校验");
                userName.Text = " admin ";
                await loginVm.LoginCommand.Execute();
                Check(error.Text == "请输入密码。", "密码校验");
                password.Password = "wrong";
                await loginVm.LoginCommand.Execute();
                Check(error.Text == "用户名或密码错误" && login.IsVisible, "失败后保留登录窗口");
                Check(password.Password.Length == 0, "失败后清空密码");
                Check(((System.Windows.Controls.Button)login.FindName("LoginButton")).IsEnabled && userName.IsEnabled && password.IsEnabled, "失败后恢复输入和提交");
                password.Password = " secret ";
                Check(ReferenceEquals(((System.Windows.Controls.Button)login.FindName("LoginButton")).Command, loginVm.LoginCommand), "登录按钮绑定 ViewModel 命令");
                var pending = loginVm.LoginCommand.Execute();
                Check(loginVm.LoadingStatus.IsLoading && !loginVm.CanEdit && !loginVm.LoginCommand.CanExecute(), "登录期间禁用输入与命令");
                await loginVm.LoginCommand.Execute();
                await pending;
                Check(handler.RequestCount == 2, "阻止重复提交");
                Check(client.Session.IsAuthenticated, "保存登录会话");
                await Dispatcher.Yield(DispatcherPriority.ApplicationIdle);
                Check(!loginHost.IsVisible && password.Password.Length == 0, "成功后关闭登录窗口并清空密码");
                IDialogService dialogs = app.Container.Resolve<IDialogService>();
                ButtonResult? closeResult = null;
                dialogs.Show(nameof(LoginWindow), new DialogParameters(), result => closeResult = result.Result);
                DialogWindow closingHost = app.Windows.OfType<DialogWindow>().Single();
                LoginWindow closingView = (LoginWindow)closingHost.Content;
                LoginViewModel closingVm = (LoginViewModel)closingView.DataContext;
                closingVm.UserName = "admin";
                var closingPassword = (System.Windows.Controls.PasswordBox)closingView.FindName("PasswordBox");
                closingPassword.Password = " secret ";
                int lateSuccessCount = 0;
                closingVm.RequestClose += result => { if (result.Result == ButtonResult.OK) lateSuccessCount++; };
                Task closingRequest = closingVm.LoginCommand.Execute();
                closingHost.Close();
                await closingRequest;
                Check(closeResult == ButtonResult.None && lateSuccessCount == 0 && closingPassword.Password.Length == 0, "关闭窗口取消登录且不触发迟到成功");
                Check(!closingVm.CanEdit && !closingVm.LoginCommand.CanExecute(), "关闭后不可再次登录");
                dialogs.Show(nameof(LoginWindow), new DialogParameters(), result => closeResult = result.Result);
                ((LoginViewModel)app.Windows.OfType<DialogWindow>().Single().DataContext).CancelCommand.Execute(null);
                Check(closeResult == ButtonResult.Cancel, "登录取消返回 Prism Cancel");
                var page = (FrameworkTestPage)((MainWindow)app.MainWindow).Content;
                var vm = (FrameworkTestPageViewModel)page.DataContext;
                vm.TestIocCommand.Execute();
                Check(vm.IocResult.StartsWith("通过"), vm.IocResult);
                vm.ProductName = " ";
                await vm.PublishNotificationCommand.Execute();
                Check(vm.NotificationResult == "请输入商品名称。", "通知输入校验");
                vm.ProductName = "通知测试商品";
                await vm.PublishNotificationCommand.Execute();
                Check(vm.NotificationResult.StartsWith("通知处理完成")
                    && vm.NotificationResult.Contains("缓存模块")
                    && vm.NotificationResult.Contains("审计模块")
                    && vm.NotificationResult.Contains(vm.ProductName), vm.NotificationResult);
                vm.ShowModelessCommand.Execute();
                var dialog = app.Windows.OfType<DialogWindow>().Single();
                var dialogVm = (FrameworkTestDialogViewModel)dialog.DataContext;
                Check(dialogVm.Message == vm.DialogInput, "Dialog input");
                dialogVm.Message = " ";
                dialogVm.ConfirmCommand.Execute(null);
                Check(dialog.IsVisible && dialogVm.ErrorMsg.Length > 0, "Empty validation");
                dialogVm.Message = "返回测试";
                dialogVm.ConfirmCommand.Execute(null);
                Check(vm.DialogResult == "确认：返回测试", vm.DialogResult);
                vm.ShowModelessCommand.Execute();
                app.Windows.OfType<DialogWindow>().Single().Close();
                Check(vm.DialogResult.Contains("None"), vm.DialogResult);
                _ = app.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, new Action(() =>
                    ((FrameworkTestDialogViewModel)app.Windows.OfType<DialogWindow>().Single().DataContext).CancelCommand.Execute(null)));
                vm.ShowModalCommand.Execute();
                Check(vm.DialogResult.Contains("Cancel"), vm.DialogResult);
                vm.DialogInput = " ";
                vm.ShowModalCommand.Execute();
                Check(!app.Windows.OfType<DialogWindow>().Any(), "Empty input blocks dialog");
                Console.WriteLine("PASS: startup, view model wiring, IoC, modeless/modal dialogs, parameters, validation, confirm/cancel/window-close.");
            }
            catch (Exception ex) { Console.Error.WriteLine(ex); exitCode = 1; }
            finally { app.Shutdown(); }
        }));
        app.Run();
        return exitCode;
    }
    static void Check(bool success, string message) { if (!success) throw new Exception(message); }
}

sealed class LoginHandler : HttpMessageHandler
{
    public int RequestCount { get; private set; }
    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        RequestCount++;
        if (request.RequestUri?.AbsoluteUri != "http://localhost:14312/api/v1/Auth/Login")
            throw new Exception("登录路由错误");
        var body = System.Text.Json.JsonDocument.Parse(await request.Content!.ReadAsStringAsync(cancellationToken));
        if (body.RootElement.GetProperty("userName").GetString() != "admin")
            throw new Exception("用户名未去除首尾空格");
        await Task.Delay(30, cancellationToken);
        var submittedPassword = body.RootElement.GetProperty("password").GetString()!;
        if (!System.Text.RegularExpressions.Regex.IsMatch(submittedPassword, "^[0-9A-F]{32}$"))
            throw new Exception("密码必须为 32 位大写 MD5");
        var success = submittedPassword == "320BB1D43EC042096A83DBAC6DC9294A";
        return new HttpResponseMessage(HttpStatusCode.OK)
        {
            Content = new StringContent(success
                ? "{\"code\":200,\"data\":{\"tokenType\":\"Bearer\",\"token\":\"test-token\",\"expiresInMinutes\":60}}"
                : "{\"code\":400,\"msg\":\"用户名或密码错误\"}", Encoding.UTF8, "application/json")
        };
    }
}