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

namespace AcDream.App.Tests.UI.Layout;

public sealed class RetailDialogFactoryTests
{
    [Theory]
    [InlineData(RetailDialogType.Confirmation, 0x15u)]
    [InlineData(RetailDialogType.Wait, 0x31u)]
    [InlineData(RetailDialogType.Message, 0x24u)]
    [InlineData(RetailDialogType.TextInput, 0x28u)]
    [InlineData(RetailDialogType.ConfirmationTextInput, 0x2Cu)]
    [InlineData(RetailDialogType.Menu, 0x1Bu)]
    [InlineData(RetailDialogType.ConfirmationMenu, 0x1Fu)]
    public void DialogTypesMapToRetailCatalogRoots(
        RetailDialogType type,
        uint expectedRoot)
        => Assert.Equal(expectedRoot, RetailDialogFactory.RootElementId(type));

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

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

    [Fact]
    public void ConfirmationCreatesFreshCenteredRootAndReturnsPropertyResult()
    {
        var root = new UiRoot { Width = 1024f, Height = 768f };
        var layouts = new List<ImportedLayout>();
        var factory = CreateFactory(root, layouts);
        bool? result = null;

        factory.MakeConfirmation(
            "Do you really want to kill your character?",
            data => result = data.GetBoolean(RetailDialogProperty.ConfirmationResult));

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

        Accept(layout);

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

    [Fact]
    public void SameQueuePresentsFifoUsingFreshLiveRoots()
    {
        var root = new UiRoot { Width = 800f, Height = 600f };
        var layouts = new List<ImportedLayout>();
        var factory = CreateFactory(root, layouts);
        var results = new List<string>();

        factory.MakeConfirmation("first", data =>
            results.Add($"first:{data.GetBoolean(RetailDialogProperty.ConfirmationResult)}"));
        factory.MakeConfirmation("second", data =>
            results.Add($"second:{data.GetBoolean(RetailDialogProperty.ConfirmationResult)}"));

        Assert.Equal(1, factory.PendingCount);
        Reject(layouts[0]);
        Assert.Equal(["first:False"], results);
        Assert.Equal(2, layouts.Count);
        Assert.NotSame(layouts[0].Root, layouts[1].Root);
        Assert.Same(layouts[1].Root, root.Modal);
        Assert.Equal("second", Message(layouts[1]));

        Accept(layouts[1]);
        Assert.Equal(["first:False", "second:True"], results);
        Assert.False(factory.IsOpen);
    }

    [Fact]
    public void QueueGroupsAndNonQueuedDialogsCanBeActiveTogether()
    {
        var root = new UiRoot { Width = 800f, Height = 600f };
        var layouts = new List<ImportedLayout>();
        var factory = CreateFactory(root, layouts);

        uint first = factory.MakeConfirmation("queue two", queueKey: 2u);
        uint second = factory.MakeConfirmation("queue three", queueKey: 3u);
        uint third = factory.MakeConfirmation("nonqueued", queueKey: 1u);

        Assert.Equal(3, factory.ActiveCount);
        Assert.Equal(0, factory.PendingCount);
        Assert.Same(layouts[2].Root, root.Modal);

        Assert.True(factory.CloseDialog(third));
        Assert.Same(layouts[1].Root, root.Modal);
        Assert.True(factory.CloseDialog(second));
        Assert.Same(layouts[0].Root, root.Modal);
        Assert.True(factory.CloseDialog(first));
        Assert.Null(root.Modal);
    }

    [Fact]
    public void PriorityDialogSuspendsCurrentAndRestoresItBeforeOlderPendingWork()
    {
        var root = new UiRoot { Width = 800f, Height = 600f };
        var layouts = new List<ImportedLayout>();
        var factory = CreateFactory(root, layouts);

        factory.MakeConfirmation("current");
        factory.MakeConfirmation("ordinary pending");
        factory.MakeConfirmation("priority", priority: true);

        Assert.Equal(2, factory.PendingCount);
        Assert.Equal("priority", Message(layouts[1]));
        Assert.DoesNotContain(layouts[0].Root, root.Children);

        Reject(layouts[1]);

        Assert.Equal(3, layouts.Count);
        Assert.Equal("current", Message(layouts[2]));
        Assert.Equal(1, factory.PendingCount);
        Assert.NotSame(layouts[0].Root, layouts[2].Root);
    }

    [Fact]
    public void CallbackPrecedesCloseNoticeAndCustomLabelsAreApplied()
    {
        var root = new UiRoot { Width = 800f, Height = 600f };
        var layouts = new List<ImportedLayout>();
        var factory = CreateFactory(root, layouts);
        var order = new List<string>();
        factory.DialogClosed += (_, _) => order.Add("notice");
        RetailDialogData data = RetailDialogData.Confirmation("Proceed?")
            .Set(RetailDialogProperty.AcceptLabel, "Yes")
            .Set(RetailDialogProperty.RejectLabel, "No");

        factory.MakeDialog(data, _ => order.Add("callback"));

        Assert.Equal("Yes", Button(layouts[0], RetailConfirmationDialogView.AcceptButtonId).Label);
        Assert.Equal("No", Button(layouts[0], RetailConfirmationDialogView.RejectButtonId).Label);
        Accept(layouts[0]);
        Assert.Equal(["callback", "notice"], order);
    }

    [Fact]
    public void PendingContextCanBeClosedWithoutDisturbingActiveDialog()
    {
        var root = new UiRoot { Width = 800f, Height = 600f };
        var layouts = new List<ImportedLayout>();
        var factory = CreateFactory(root, layouts);
        var completed = new List<uint>();

        uint active = factory.MakeConfirmation("active");
        uint pending = 0u;
        pending = factory.MakeConfirmation("pending", _ => completed.Add(pending));

        Assert.True(factory.CloseDialog(pending));
        Assert.Equal([pending], completed);
        Assert.Equal(0, factory.PendingCount);
        Assert.Same(layouts[0].Root, root.Modal);
        Assert.True(factory.CloseDialog(active));
    }

    [Fact]
    public void ResetCompletesActiveAndPendingContexts()
    {
        var root = new UiRoot { Width = 800f, Height = 600f };
        var layouts = new List<ImportedLayout>();
        var factory = CreateFactory(root, layouts);
        var completed = new List<string>();
        var notices = new List<uint>();
        factory.DialogClosed += (context, _) => notices.Add(context);

        uint active = factory.MakeConfirmation("active", _ => completed.Add("active"));
        uint pending = factory.MakeConfirmation("pending", _ => completed.Add("pending"));
        factory.Reset();

        Assert.Equal(["active", "pending"], completed);
        Assert.Equal([active, pending], notices);
        Assert.False(factory.IsOpen);
        Assert.Equal(0, factory.PendingCount);
        Assert.Null(root.Modal);
    }

    private static RetailDialogFactory CreateFactory(
        UiRoot root,
        List<ImportedLayout> layouts)
        => new(root, type =>
        {
            Assert.Equal(RetailDialogType.Confirmation, type);
            ImportedLayout layout = FixtureLoader.LoadConfirmationDialog();
            layouts.Add(layout);
            return layout;
        });

    private static UiButton Button(ImportedLayout layout, uint id)
        => Assert.IsType<UiButton>(layout.FindElement(id));

    private static void Accept(ImportedLayout layout)
        => Button(layout, RetailConfirmationDialogView.AcceptButtonId).OnClick!();

    private static void Reject(ImportedLayout layout)
        => Button(layout, RetailConfirmationDialogView.RejectButtonId).OnClick!();

    private static string Message(ImportedLayout layout)
        => string.Join(" ", Assert.IsType<UiText>(layout.FindElement(
            RetailConfirmationDialogView.MessageElementId)).LinesProvider().Select(static line => line.Text));
}