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

#include <doctest/doctest.h>

#include <limits>

using namespace sequa::three_d;

TEST_CASE("quantize_axis : bornes, arrondi, valeurs non finies")
{
    CHECK(quantize_axis(0.0) == 0);
    CHECK(quantize_axis(1.0) == axis_max);
    CHECK(quantize_axis(-1.0) == -axis_max);
    CHECK(quantize_axis(0.5) == 16384); // 16383,5 arrondi au plus proche
    CHECK(quantize_axis(-0.5) == -16384);
    CHECK(quantize_axis(3.0) == axis_max);
    CHECK(quantize_axis(-3.0) == -axis_max);
    CHECK(quantize_axis(std::numeric_limits<double>::quiet_NaN()) == 0);
    CHECK(quantize_axis(std::numeric_limits<double>::infinity()) == 0);
}

TEST_CASE("PlayerInput : neutre et egalite")
{
    CHECK(PlayerInput{}.is_neutral());
    CHECK_FALSE(PlayerInput{1, 0, 0}.is_neutral());
    CHECK_FALSE(PlayerInput{0, 0, -5}.is_neutral());
    CHECK(PlayerInput{1, 2, 3} == PlayerInput{1, 2, 3});
    CHECK_FALSE(PlayerInput{1, 2, 3} == PlayerInput{1, 2, 4});
}

TEST_CASE("NullEngineAdapter : entrees seulement si declarees et demarre")
{
    NullEngineAdapter silent;
    EngineConfig config;
    config.headless = true;
    REQUIRE_FALSE(silent.start(config));
    CHECK_FALSE(silent.poll_input().has_value()); // capacite non declaree

    EngineCapabilities caps{"null", "0", BufferSet::all(), false, true, 0, 0};
    caps.player_input = true;
    NullEngineAdapter adapter(caps);
    CHECK_FALSE(adapter.poll_input().has_value()); // pas encore demarre
    REQUIRE_FALSE(adapter.start(config));
    REQUIRE(adapter.poll_input().has_value());
    CHECK(adapter.poll_input()->is_neutral());
    adapter.set_input(PlayerInput{1, axis_max, 0});
    CHECK(*adapter.poll_input() == PlayerInput{1, axis_max, 0});
    adapter.stop();
    CHECK_FALSE(adapter.poll_input().has_value());
}