import javax.swing.JOptionPane;

public class RockPaperScissors {

	public static void main(String[] args) {

		final int MAX = 1000;
		final int ROCK = 0;
		final int PAPER = 1;
		final int SCISSORS = 2;


		String input = "";
		int player;
		int count = 0;
		int [] rounds = new int [MAX];
		boolean loop = true;

		System.out.println("Rock Paper Scissors!");

		while((count < MAX) && (loop)) {
			input = JOptionPane.showInputDialog(null,"Enter an option: rock, paper, scissors, summary, or quit: ");

			if((input == null) || (input.equalsIgnoreCase("quit"))) {
				loop = false;
			}
			else if(input.equalsIgnoreCase("rock")) {
				player = ROCK;
				rounds[count] = playRound(player,ROCK,PAPER,SCISSORS);
				count++;
			}
			else if (input.equalsIgnoreCase("paper")) {
				player = PAPER;
				rounds[count] = playRound(player,ROCK,PAPER,SCISSORS);
				count++;
			}
			else if (input.equalsIgnoreCase("scissors")) {
				player = SCISSORS;
				rounds[count] = playRound(player,ROCK,PAPER,SCISSORS);
				count++;
			}
			else if (input.equalsIgnoreCase("summary")) {
				summary(rounds,count);
			}
			else {
				System.out.println("Invalid input.");
			}
		}

		System.out.println("End of processing.");
		System.exit (0);

	}

	public static int playRound(int player, int ROCK, int PAPER, int SCISSORS) {
		int computer;
		int result = 0;

		computer = (int)(Math.random() * 3);

		if((player == ROCK) && (computer == SCISSORS)) {
			result = 1;
			System.out.println("Computer chose scissors. You are victorious!");
		}
		else if((player == ROCK) && (computer == PAPER)) {
			result = 2;
			System.out.println("Computer chose paper. You have been defeated.");
		}
		else if((player == PAPER) && (computer == ROCK)) {
			result = 1;
			System.out.println("Computer chose rock. You are victorious!");
		}
		else if ((player == PAPER) && (computer == SCISSORS)) {
			result = 2;
			System.out.println("Computer chose scissors. You have been defeated.");
		}
		else if ((player == SCISSORS) && (computer == PAPER)) {
			result = 1;
			System.out.println("Computer chose paper. You are victorious!");
		}
		else if ((player == SCISSORS) && (computer == ROCK)) {
			result = 2;
			System.out.println("Computer chose rock. You have been defeated.");
		}
		else if (player == computer) {
			result = 3;
			System.out.println("Computer chose the same. It's a draw!");
		}

		return result;

	}

	public static void summary(int [] rounds, int count) {
		int wins = 0;
		int loses = 0;
		int draws = 0;
		double average;
		int winStreak;

		for(int i = 0; i < count; i++) {
			if(rounds[i] == 1) {
				wins++;
			}
			else if(rounds[i] == 2) {
				loses++;
			}
			else if(rounds[i] == 3) {
				draws++;
			}
		}

		average = getAverage(wins,count);
		winStreak = winningStreak(rounds,count);

		System.out.println("===Summary===");
		System.out.println("");
		System.out.println("Total wins: " + wins);
		System.out.println("Total losses: " + loses);
		System.out.println("Total draws: " + draws);
		System.out.println("Winning Average: " + average + "%");
		System.out.println("Win Streak: " + winStreak);


	}

	public static double getAverage(int wins, int count) {
		double average = 0;
		int temp;

		average = (double) wins / count;
		average = average * 100;
		temp = (int) (average * 10);
		average = (double) temp / 10;

		return average;
	}

	public static int winningStreak(int [] rounds, int count) {
		int streak = 0;
		int winStreak = 0;

		for(int i = 0; i < count; i++) {
			if(rounds[i] == 1) {
				streak++;
			}
			else {
				streak = 0;
			}

			if(streak > winStreak) {
				winStreak = streak;
			}
		}

		return winStreak;
	}
}