#include <game/gamemanager.hpp>
#include <algorithm>

namespace Game {
    void GameManager::run(std::stop_token stopToken) {
        using namespace std::chrono_literals;
        LOG("GameManager thread started");

        while (!stopToken.stop_requested()) {
            const int updatesPerSecond = std::max(1, mTargetUpdatesPerSecond);
            const auto frameDuration = std::chrono::duration<double>(1.0 / static_cast<double>(updatesPerSecond));
            const auto frameStart = std::chrono::steady_clock::now();

            try {
                State::GameState::getInstance().withEntitiesLocked([](auto& entities) {
                    for (auto& entity : entities) {
                        entity->update();
                    }
                });
            } catch (const std::exception& e) {
                ERROR("Exception in GameManager thread: " << e.what());
            }

            const auto elapsed = std::chrono::steady_clock::now() - frameStart;
            const auto remaining = frameDuration - elapsed;
            if (remaining > 0s) {
                std::this_thread::sleep_for(remaining);
            }
        }
    }
}