using Avalonia.Controls;
using Avalonia.Headless.XUnit;
using Avalonia.VisualTree;
using NSubstitute;
using Shouldly;
using Xunit;
using JdeScoping.SecureStoreManager.Services;
using JdeScoping.SecureStoreManager.ViewModels;
using JdeScoping.SecureStoreManager.Views;

namespace JdeScoping.SecureStoreManager.Tests.Views;

public class MainWindowTests
{
    private static MainWindowViewModel CreateViewModel(ISecureStoreManager? storeManager = null)
    {
        var mockStoreManager = storeManager ?? Substitute.For<ISecureStoreManager>();
        var mockDialogService = Substitute.For<IDialogService>();
        var mockClipboardService = Substitute.For<IClipboardService>();
        return new MainWindowViewModel(mockStoreManager, mockDialogService, mockClipboardService);
    }

    [AvaloniaFact]
    public void MainWindow_ShowsWithCorrectDefaultTitle()
    {
        // Arrange
        var storeManager = Substitute.For<ISecureStoreManager>();
        storeManager.IsStoreOpen.Returns(false);
        var viewModel = CreateViewModel(storeManager);
        var window = new MainWindow { DataContext = viewModel };

        // Act
        window.Show();

        // Assert - Title is bound to WindowTitle which is "SecureStore Manager" when no store is open
        window.Title.ShouldBe("SecureStore Manager");
    }

    [AvaloniaFact]
    public void MainWindow_HasExpectedWidth()
    {
        // Arrange & Act
        var window = new MainWindow();
        window.Show();

        // Assert
        window.Width.ShouldBe(800);
    }

    [AvaloniaFact]
    public void MainWindow_HasExpectedHeight()
    {
        // Arrange & Act
        var window = new MainWindow();
        window.Show();

        // Assert
        window.Height.ShouldBe(500);
    }

    [AvaloniaFact]
    public void MainWindow_DataContextIsMainWindowViewModel()
    {
        // Arrange
        var viewModel = CreateViewModel();

        // Act
        var window = new MainWindow { DataContext = viewModel };
        window.Show();

        // Assert - DataContext is set via DI in production, but must be set manually in tests
        window.DataContext.ShouldBeOfType<MainWindowViewModel>();
    }

    [AvaloniaFact]
    public void MainWindow_ContainsSecretsDataGrid()
    {
        // Arrange & Act
        var window = new MainWindow();
        window.Show();

        // Assert
        var dataGrid = window.FindDescendantOfType<DataGrid>();
        dataGrid.ShouldNotBeNull();
    }

    [AvaloniaFact]
    public void MainWindow_ContainsMenuBar()
    {
        // Arrange & Act
        var window = new MainWindow();
        window.Show();

        // Assert
        var menu = window.FindDescendantOfType<Menu>();
        menu.ShouldNotBeNull();
    }

    [AvaloniaFact]
    public void MainWindow_ContainsToolbarButtons()
    {
        // Arrange & Act
        var window = new MainWindow();
        window.Show();

        // Assert
        var buttons = window.GetVisualDescendants().OfType<Button>().ToList();
        buttons.Count.ShouldBeGreaterThan(0);

        // Verify toolbar buttons exist with expected content
        buttons.Any(b => b.Content?.ToString() == "New").ShouldBeTrue();
        buttons.Any(b => b.Content?.ToString() == "Open").ShouldBeTrue();
        buttons.Any(b => b.Content?.ToString() == "Save").ShouldBeTrue();
        buttons.Any(b => b.Content?.ToString() == "Add").ShouldBeTrue();
        buttons.Any(b => b.Content?.ToString() == "Edit").ShouldBeTrue();
        buttons.Any(b => b.Content?.ToString() == "Delete").ShouldBeTrue();
    }

    [AvaloniaFact]
    public void MainWindow_NewButtonCommand_IsBoundToViewModel()
    {
        // Arrange
        var storeManager = Substitute.For<ISecureStoreManager>();
        var viewModel = CreateViewModel(storeManager);
        var window = new MainWindow { DataContext = viewModel };

        // Act
        window.Show();

        var buttons = window.GetVisualDescendants().OfType<Button>().ToList();
        var newButton = buttons.FirstOrDefault(b => b.Content?.ToString() == "New");

        // Assert
        newButton.ShouldNotBeNull();
        newButton.Command.ShouldBe(viewModel.NewStoreCommand);
    }

    [AvaloniaFact]
    public void MainWindow_StatusBar_DisplaysStatusMessage()
    {
        // Arrange
        var storeManager = Substitute.For<ISecureStoreManager>();
        var viewModel = CreateViewModel(storeManager);
        var window = new MainWindow { DataContext = viewModel };

        // Act
        window.Show();

        // Assert - Find status bar text blocks
        var textBlocks = window.GetVisualDescendants().OfType<TextBlock>().ToList();
        // Status message should be "Ready" by default
        textBlocks.Any(tb => tb.Text == viewModel.StatusMessage).ShouldBeTrue();
    }
}