using AcDream.App.UI;
using AcDream.App.UI.Layout;

namespace AcDream.App.Tests.UI.Layout;

public sealed class RetailConfirmationDialogServiceTests
{
    [Fact]
    public void FixtureBuildsProductionConfirmationWidgets()
    {
        var layout = FixtureLoader.LoadConfirmationDialog();

        Assert.IsType<UiDialogRoot>(layout.Root);
        Assert.IsType<UiText>(layout.FindElement(RetailConfirmationDialogService.MessageElementId));
        Assert.IsType<UiButton>(layout.FindElement(RetailConfirmationDialogService.AcceptButtonId));
        Assert.IsType<UiButton>(layout.FindElement(RetailConfirmationDialogService.RejectButtonId));
    }

    [Fact]
    public void ShowCentersModalAndAcceptCompletesIt()
    {
        var root = new UiRoot { Width = 1024f, Height = 768f };
        var layout = FixtureLoader.LoadConfirmationDialog();
        var service = new RetailConfirmationDialogService(root, layout);
        bool? result = null;

        service.Show("Do you really want to kill your character?", accepted => result = accepted);

        Assert.Same(layout.Root, root.Modal);
        var popup = Assert.IsAssignableFrom<UiElement>(
            layout.FindElement(RetailConfirmationDialogService.PopupElementId));
        Assert.Equal(MathF.Round((1024f - popup.Width) * 0.5f), popup.Left);
        Assert.Equal(MathF.Round((768f - popup.Height) * 0.5f), popup.Top);

        var accept = Assert.IsType<UiButton>(
            layout.FindElement(RetailConfirmationDialogService.AcceptButtonId));
        accept.OnClick!();

        Assert.True(result);
        Assert.Null(root.Modal);
        Assert.False(service.IsOpen);
    }

    [Fact]
    public void RequestsArePresentedInFifoOrder()
    {
        var root = new UiRoot { Width = 800f, Height = 600f };
        var layout = FixtureLoader.LoadConfirmationDialog();
        var service = new RetailConfirmationDialogService(root, layout);
        var results = new List<string>();

        service.Show("first", accepted => results.Add($"first:{accepted}"));
        service.Show("second", accepted => results.Add($"second:{accepted}"));

        Assert.Equal(1, service.PendingCount);
        Assert.IsType<UiButton>(layout.FindElement(
            RetailConfirmationDialogService.RejectButtonId)).OnClick!();
        Assert.Equal(["first:False"], results);
        Assert.True(service.IsOpen);
        Assert.Equal(0, service.PendingCount);

        Assert.IsType<UiButton>(layout.FindElement(
            RetailConfirmationDialogService.AcceptButtonId)).OnClick!();
        Assert.Equal(["first:False", "second:True"], results);
        Assert.False(service.IsOpen);
    }
}