/* CSCI 200: Lab 2C (Coordinate Conversion By Pointer): Tyler Beckman
 *
 * Author: Tyler Beckman
 *
 * TODO
 */
#include "coordinate_conversion.h"

#include <iostream>

int main(void) {
  char direction = 'P';

  std::cout
      << "Which coordinate system would you like to convert to? [P]olar - "
         "(x, y) -> (r, θ), or [C]artesian - (r, θ) -> (x, y)? ";
  std::cin >> direction;

  double radius = 0;
  double angle = 0;
  double xCoordinate = 0;
  double yCoordinate = 0;

  switch (direction) {
    case 'P':
      std::cout << "Please enter the (x, y) coordinates, separated by a "
                   "space: ";
      std::cin >> xCoordinate >> yCoordinate;

      cartesian_to_polar(xCoordinate, yCoordinate, &radius, &angle);

      std::cout << "The result (r, θ) is: (" << radius << ", " << angle << ")"
                << std::endl;
      break;
    case 'C':
      std::cout << "Please enter the (r, θ) coordinates, separated by a "
                   "space: ";
      std::cin >> radius >> angle;

      polar_to_cartesian(radius, angle, &xCoordinate, &yCoordinate);

      std::cout << "The result (x, y) is: (" << xCoordinate << ", "
                << yCoordinate << ")" << std::endl;
      break;
    default:
      std::cout << "\"" << direction << "\" is not a valid option, exiting"
                << std::endl;
      return 1;
  }
}