#include "hands.h"

#include <iostream>
#include <memory>
#include <ostream>

int main(void) {
	int wins = 0;
	int losses = 0;
	int ties = 0;

	while (true) {
		// Take a letter input and convert it to the correct class type for
		// later use
		char handLetter;
		std::cout << "Welcome to a round of Rock Paper Scissors! Please enter "
					 "a hand to play (R/P/S): ";
		std::cin >> handLetter;
		const std::unique_ptr<Hand> userHand = Hand::fromChar(handLetter);

		// Generate a random "computer" hand and display the two choices
		const std::unique_ptr<Hand> computerHand = Hand::generateRandom();

		std::cout << std::endl
				  << "Player chose " << userHand->getHandName() << std::endl
				  << "Computer chose " << computerHand->getHandName()
				  << std::endl
				  << std::endl;

		// Compare the two hands, add to statistics, and give the correct output
		// and explanation
		switch (userHand->compareAgainst(*computerHand)) {
			case Win:
				std::cout << "The player wins, as " << userHand->getHandName()
						  << " beats " << computerHand->getHandName() << "!"
						  << std::endl;
				wins++;
				break;
			case Tie:
				std::cout << "No one wins, as " << userHand->getHandName()
						  << " is the same as " << computerHand->getHandName()
						  << "." << std::endl;
				ties++;
				break;
			case Loss:
				std::cout << "The computer wins, as "
						  << computerHand->getHandName() << " beats "
						  << userHand->getHandName() << "." << std::endl;
				losses++;
				break;
		}

		// Ask if the user would like to play again or exit
		char playAgain;
		std::cout << "Do you want to play again (Y/N)? ";
		std::cin >> playAgain;
		switch (playAgain) {
			case 'Y':
			case 'y':
				std::cout << std::endl;
				continue;
			case 'N':
			case 'n':
			default:
				std::cout << std::endl
						  << "Thanks for playing!" << std::endl
						  << "You won " << wins << " game(s), lost " << losses
						  << " game(s), and tied " << ties << " time(s)."
						  << std::endl;
				std::exit(0);
		}
	}
}