using AcDream.App.Rendering.Wb;
using System.Numerics;

namespace AcDream.App.Tests.Rendering.Wb;

public sealed class PackedDispatcherOracleTests
{
    [Theory]
    [InlineData(false, 0u)]
    [InlineData(true, 1u)]
    public void PackedInstanceWriter_AppendsDetailCategoryInParallel(
        bool buildingDetail,
        uint expectedCategory)
    {
        var group = new WbDrawDispatcher.InstanceGroup();

        WbDrawDispatcher.AppendPackedInstance(
            group,
            Matrix4x4.Identity,
            Vector3.One,
            submissionOrder: 7,
            slot: 3u,
            lights: WbDrawDispatcher.InstanceLightSet.Disabled,
            indoor: true,
            buildingDetail: buildingDetail,
            opacity: 0.5f,
            selectionLighting: new Vector2(0.25f, 0.75f));

        Assert.Single(group.Matrices);
        Assert.Single(group.LocalSortCenters);
        Assert.Single(group.SubmissionOrders);
        Assert.Single(group.Slots);
        Assert.Single(group.LightSets);
        Assert.Single(group.IndoorFlags);
        Assert.Equal(expectedCategory, Assert.Single(group.DetailCategories));
        Assert.Single(group.Opacities);
        Assert.Single(group.SelectionLighting);
    }

    [Theory]
    [InlineData(0u, false, false)]
    [InlineData(0u, true, false)]
    [InlineData(7u, false, false)]
    [InlineData(7u, true, true)]
    public void TransparentDeferral_MatchesProductionNoVaoEarlyReturn(
        uint anyVao,
        bool alphaQueueCollecting,
        bool expected)
    {
        Assert.Equal(
            expected,
            WbDrawDispatcher.ShouldDeferPackedTransparent(
                anyVao,
                alphaQueueCollecting));
    }
}