// SPDX-License-Identifier: MPL-2.0
#include "sequa/3d/adapter.hpp"
#include "sequa/3d/capabilities.hpp"

#include <doctest/doctest.h>

using namespace sequa::three_d;

TEST_CASE("BufferSet : union, intersection, difference")
{
    const BufferSet a{FrameBuffer::color, FrameBuffer::depth};
    const BufferSet b{FrameBuffer::depth, FrameBuffer::albedo};
    CHECK((a | b) == BufferSet{FrameBuffer::color, FrameBuffer::depth, FrameBuffer::albedo});
    CHECK((a & b) == BufferSet{FrameBuffer::depth});
    CHECK((a - b) == BufferSet{FrameBuffer::color});
    CHECK(a.contains(FrameBuffer::color));
    CHECK_FALSE(a.contains(FrameBuffer::albedo));
    CHECK(BufferSet::all().contains(a | b));
    CHECK(BufferSet{}.empty());
}

TEST_CASE("negotiate : separe les tampons accordes des manquants")
{
    EngineCapabilities caps;
    caps.engine_name = "test";
    caps.buffers = {FrameBuffer::color, FrameBuffer::depth};
    const Negotiation n = negotiate({FrameBuffer::color, FrameBuffer::object_ids}, caps);
    CHECK(n.granted == BufferSet{FrameBuffer::color});
    CHECK(n.missing == BufferSet{FrameBuffer::object_ids});
}

TEST_CASE("validate_request : tampon absent ou taille invalide refuses")
{
    EngineCapabilities caps;
    caps.engine_name = "test";
    caps.buffers = {FrameBuffer::color};
    caps.max_width = 1920;
    caps.max_height = 1080;

    FrameRequest request;
    request.width = 1280;
    request.height = 720;
    CHECK_FALSE(validate_request(request, caps).has_value());

    request.buffers = {FrameBuffer::color, FrameBuffer::albedo};
    const auto missing = validate_request(request, caps);
    REQUIRE(missing.has_value());
    CHECK(missing->code == Error::Code::unsupported);
    CHECK(missing->message.find("albedo") != std::string::npos);

    request.buffers = {FrameBuffer::color};
    request.width = 3840;
    REQUIRE(validate_request(request, caps).has_value());
    request.width = 0;
    CHECK(validate_request(request, caps)->code == Error::Code::invalid_argument);
}