using AcDream.App.Composition;
using AcDream.App.Rendering;
using AcDream.App.Rendering.Gpu.Vk;

namespace AcDream.App.Tests.Composition;

/// <summary>
/// The graphics handle composition tests hand to a phase.
///
/// <para>Campaign V slice V11 deleted the raw-GL arm — <c>GameWindowGraphics</c>
/// no longer has a <c>Backend</c> or <c>Gl</c> member to select between, so this
/// is now a single Vulkan-shaped token: a real <see cref="VulkanWorldPassScope"/>
/// (composition phases require one, and it needs no live surface — just a
/// sample count), no live <see cref="VulkanGraphicsContext"/> because tests never
/// dereference it.</para>
/// </summary>
internal sealed class TestGameWindowGraphics : GameWindowGraphics
{
    public static TestGameWindowGraphics Instance { get; } = new();

    private TestGameWindowGraphics()
    {
    }

    public override IWorldPassScope? WorldPassScope { get; } = new VulkanWorldPassScope(sampleCount: 1);

    public override void Dispose()
    {
    }
}