#include "event-engine/EventEngine.h"
#include <iostream>
#include <chrono>

namespace Warfactory {
namespace Event {

class GameEvent {
public:
    GameEvent() = default;
    virtual ~GameEvent() = default;
    virtual void execute() {}
};

class BreakthroughSystem {
public:
    BreakthroughSystem() = default;
    void analyzeScrap(const std::string& scrapData) {
        std::cout << "Analyzing scrap: " << scrapData << std::endl;
    }
    void triggerBreakthrough(const std::string& domain) {
        std::cout << "Breakthrough triggered in: " << domain << std::endl;
    }
};

class EventQueue {
public:
    EventQueue() = default;
    void scheduleEvent(std::unique_ptr<GameEvent> event, double delay) {
        events_.push(std::move(event));
    }
    void addImmediate(std::unique_ptr<GameEvent> event) {
        events_.push(std::move(event));
    }
    bool hasEvents() const { return !events_.empty(); }
    std::unique_ptr<GameEvent> popEvent() {
        if (events_.empty()) return nullptr;
        auto event = std::move(const_cast<std::unique_ptr<GameEvent>&>(events_.front()));
        events_.pop();
        return event;
    }
private:
    std::queue<std::unique_ptr<GameEvent>> events_;
};

EventEngine::EventEngine() : running_(false) {
    std::cout << "EventEngine constructor" << std::endl;
    eventQueue_ = std::make_unique<EventQueue>();
    breakthroughSystem_ = std::make_unique<BreakthroughSystem>();
}

EventEngine::~EventEngine() {
    if (running_) {
        shutdown();
    }
}

bool EventEngine::initialize() {
    std::cout << "EventEngine::initialize()" << std::endl;
    running_ = true;
    return true;
}

void EventEngine::run() {
    std::cout << "EventEngine::run() starting engine loop" << std::endl;
    engineThread_ = std::thread(&EventEngine::engineLoop, this);

    if (engineThread_.joinable()) {
        engineThread_.join();
    }
}

void EventEngine::shutdown() {
    std::cout << "EventEngine::shutdown()" << std::endl;
    running_ = false;

    if (engineThread_.joinable()) {
        engineThread_.join();
    }
}

void EventEngine::scheduleEvent(std::unique_ptr<GameEvent> event, double /*delaySeconds*/) {
    eventQueue_->scheduleEvent(std::move(event), 0.0);
}

void EventEngine::triggerImmediateEvent(std::unique_ptr<GameEvent> event) {
    eventQueue_->addImmediate(std::move(event));
}

void EventEngine::analyzeScrapForBreakthrough(const std::string& scrapData) {
    breakthroughSystem_->analyzeScrap(scrapData);
}

void EventEngine::triggerBreakthrough(const std::string& technologyDomain) {
    breakthroughSystem_->triggerBreakthrough(technologyDomain);
}

void EventEngine::generateRandomEvent() {
    std::cout << "Generating random global event" << std::endl;
}

void EventEngine::processScheduledEvents() {
    while (eventQueue_->hasEvents()) {
        auto event = eventQueue_->popEvent();
        if (event) {
            event->execute();
        }
    }
}

void EventEngine::engineLoop() {
    auto lastUpdate = std::chrono::steady_clock::now();

    while (running_) {
        auto now = std::chrono::steady_clock::now();
        auto deltaTime = std::chrono::duration<double>(now - lastUpdate).count();

        if (deltaTime >= 1.0/60.0) {
            updateEventQueue();
            dispatchEvents();
            processScheduledEvents();
            sendEvents();
            receiveEventTriggers();
            lastUpdate = now;
        }

        std::this_thread::sleep_for(std::chrono::milliseconds(1));
    }
}

void EventEngine::updateEventQueue() {
}

void EventEngine::dispatchEvents() {
}

void EventEngine::sendEvents() {
}

void EventEngine::receiveEventTriggers() {
}

} // namespace Event
} // namespace Warfactory