#include "Game.hpp"

#include <GLFW/glfw3.h>
#include "Time.hpp"
#include "Common/Sizes.hpp"
#include "Entities/Player.hpp"
#include "GFX/Camera.hpp"
#include "GFX/Window.hpp"
#include "World/Clouds.hpp"
#include "World/World.hpp"

namespace MC {

void Game::run() const {
    World::World world{};

    GFX::Camera camera{};

    World::Clouds clouds{};
    Entities::Player player{{0, World::Chunk::Height / 2.0, 0}};

    Time time;

    while (!m_window.should_close()) {
        m_window.poll_events();

#ifdef __APPLE__
        // Needs to happen on the main thread
        fix_macos_render();
#endif

        time.start_frame();

        if (m_window.key(GLFW_KEY_ESCAPE, GLFW_PRESS)) {
            m_window.close();
        }

        player.update(time, m_window, camera, world);
        clouds.update(time);

        GFX::Actions actions;

        for (auto chunk : world.get_visible_chunks(time, camera.position())) {
            auto position = chunk->chunk.value().position();
            actions.add({
                .program = GFX::Resources::Program::Terrain,
                .mesh = &chunk->land_mesh.value(),
                .transform = Transform(position),
            });

            actions.add({
                .program = GFX::Resources::Program::Terrain,
                .mesh = &chunk->water_mesh.value(),
                .transform = Transform(position - Vec3{0, 0.2, 0}),
                .alpha = 0.4,
            });
        }

        player.render(actions);
        clouds.render(actions, player.position());

        m_render_control->send_render_data({actions, camera});
        m_render_control->wait_for_render_finish();

        time.end_frame();
    }
}

void Game::fix_macos_render() const {
    static Bool moved = false;

    if(!moved) {
        I32 x, y;
        glfwGetWindowPos(m_window.get(), &x, &y);
        glfwSetWindowPos(m_window.get(), ++x, y);

        moved = true;
    }
}

}