#ifndef DIRECTION_H_AB66A90E
#define DIRECTION_H_AB66A90E

#include <string>
#include <stdexcept>

enum class Direction {
  up,
  up_right,
  right,
  down_right,
  down,
  down_left,
  left,
  up_left
};

inline Direction directionFromString(std::string_view str) {
  if (str == "up") return Direction::up;
  if (str == "up_right") return Direction::up_right;
  if (str == "right") return Direction::right;
  if (str == "down_right") return Direction::down_right;
  if (str == "down") return Direction::down;
  if (str == "down_left") return Direction::down_left;
  if (str == "left") return Direction::left;
  if (str == "up_left") return Direction::up_left;
  throw std::invalid_argument("Invalid direction: " + std::string(str));
}

#endif /* end of include guard: DIRECTION_H_AB66A90E */