#ifndef GAME_H_E6F1396E
#define GAME_H_E6F1396E

#include <list>
#include <range/v3/all.hpp>
#include <vector>
#include <memory>
#include <map>
#include "sprite.h"
#include "map.h"
#include "consts.h"
#include "system.h"

struct Input {
  bool left = false;
  bool right = false;
  bool up = false;
  bool down = false;
};

class Game {
public:

  template <typename T>
  void emplaceSystem() {
    systems_.push_back(std::make_unique<T>(*this));
    systemByKey_[T::Key] = systems_.back().get();
  }

  template <typename T>
  T& getSystem() {
    return *dynamic_cast<T*>(systemByKey_.at(T::Key));
  }

  auto systems() {
    return systems_ | ranges::views::transform([&] (std::unique_ptr<System>& systemPtr) -> System& {
      return *systemPtr;
    });
  }

  int emplaceSprite();

  const Sprite& getSprite(int id) const {
    return sprites_.at(id);
  }

  Sprite& getSprite(int id) {
    return sprites_.at(id);
  }

  const std::vector<int>& getSprites() {
    return spriteIds_;
  }

  auto spriteView() const {
    return ranges::views::transform([&] (int id) -> const Sprite& {
      return sprites_.at(id);
    });
  }

  auto spriteView() {
    return ranges::views::transform([&] (int id) -> Sprite& {
      return sprites_.at(id);
    });
  }

  void setMap(std::unique_ptr<Map> map) { map_ = std::move(map); }

  const Map& getMap() const { return *map_; }

private:

  std::list<std::unique_ptr<System>> systems_;
  std::map<SystemKey, System*> systemByKey_;

  std::vector<int> spriteIds_;
  std::vector<Sprite> sprites_;
  std::unique_ptr<Map> map_;
};

#endif /* end of include guard: GAME_H_E6F1396E */