#include <event/event_queue.h>

namespace extra2d {

EventQueue::EventQueue() = default;

void EventQueue::push(const Event &event) {
  std::lock_guard<std::mutex> lock(mutex_);
  queue_.push(event);
}

void EventQueue::push(Event &&event) {
  std::lock_guard<std::mutex> lock(mutex_);
  queue_.push(std::move(event));
}

bool EventQueue::poll(Event &event) {
  std::lock_guard<std::mutex> lock(mutex_);
  if (queue_.empty()) {
    return false;
  }
  event = queue_.front();
  queue_.pop();
  return true;
}

bool EventQueue::peek(Event &event) const {
  std::lock_guard<std::mutex> lock(mutex_);
  if (queue_.empty()) {
    return false;
  }
  event = queue_.front();
  return true;
}

void EventQueue::clear() {
  std::lock_guard<std::mutex> lock(mutex_);
  while (!queue_.empty()) {
    queue_.pop();
  }
}

bool EventQueue::empty() const {
  std::lock_guard<std::mutex> lock(mutex_);
  return queue_.empty();
}

size_t EventQueue::size() const {
  std::lock_guard<std::mutex> lock(mutex_);
  return queue_.size();
}

} // namespace extra2d