import java.util.Scanner;

public class UserInterface {
    
    private Scanner s;

    public UserInterface() {
	s = new Scanner(System.in);
    }

    public boolean goAgain() {
	System.out.println("Rematch? ");
	String choice = s.nextLine();
	while(!choice.equalsIgnoreCase("Y") && !choice.equalsIgnoreCase("N")) {
	    System.out.println("Invalid selection, try again: ");
	    choice = s.nextLine();
	}
	if(choice.equalsIgnoreCase("Y"))
	    return true;
	else 
	    return false;
    }

    public int getNextChoice() {
	System.out.println("Enter Selection -- Rock (R), Paper (P), or Scissors(S): ");
	String choice = s.nextLine();
	while(!choice.equalsIgnoreCase("R") && !choice.equalsIgnoreCase("P") && !choice.equalsIgnoreCase("S")) {
	    System.out.println("Invalid selection, try again: ");
	    choice = s.nextLine();
	}
	if(choice.equalsIgnoreCase("R"))
	    return RPS.Rock;
	else if(choice.equalsIgnoreCase("P"))
	    return RPS.Paper;
	else if(choice.equalsIgnoreCase("S"))
	    return RPS.Scissors;
	return -1;
    }


    public void printChoice(int choice, String player) {
	switch(choice) {
	case RPS.Rock:
	    System.out.println(player + " chooses ROCK");
	    break;
	case RPS.Paper:
	    System.out.println(player + " chooses PAPER");
	    break;
	case RPS.Scissors:
	    System.out.println(player + " chooses SCISSORS");

	}
    }

    public void printWinner(String winner) {
	if(winner.equalsIgnoreCase("Tie")) {
	    System.out.println("We have a tie!");
	} else {
	    System.out.println(winner + " is the winner!");
	}
    }

    public void printTally(Tally tally) {
	System.out.println("**********************");
	System.out.println("Current Score: ");
	System.out.println("\t" + tally.getP1Name() + " - " + tally.getP1Wins() + " wins");
	System.out.println("\t" + tally.getP2Name() + " - " + tally.getP2Wins() + " wins");
	System.out.println("\tTies - " + tally.getTies());
	System.out.println("**********************");
    }
}