import java.util.Scanner;

/* Java application having as its purpose to be used in testing the class
** TennisGameScore.  The user is asked to enter names for the server and
** receiver in a game of tennis, and then to enter s's and r's to identify
** which player ('s' for server, 'r' for receiver) scored each point in
** the game.  Characters other than 's' or 'r' are ignored, as are any
** characters that describe a point following the end of the game.
**
** Author: R. McCloskey
** Date: November 2014
*/

public class TennisGameScoreTester {

   private static Scanner keyboard = new Scanner(System.in);

   public static void main(String[] args) {
      String server = getString("Enter name of server: ");
      String receiver = getString("Enter name of receiver: ");
      System.out.println();

      TennisGameScore g = new TennisGameScore(server, receiver);

      System.out.println(g.toString());

      while (!g.isOver())
      {
         System.out.print("\nEnter s or r (or a sequence thereof): ");
         String response = keyboard.nextLine();

         for (int i=0; i != response.length() && !g.isOver(); i=i+1)
         {
            char ch = response.charAt(i);
            if (ch == 's') 
               { g.pointForServer(); }
            else if (ch == 'r') 
               { g.pointForReceiver(); }
            else {   // ignore character
            }
            System.out.println(g.toString());  // display status of game
         }
      }
      System.out.println("\nPoints won by " + g.getServerName() + ": " + 
                         g.getServerPoints());
      System.out.println("Points won by " + g.getReceiverName() + ": " + 
                         g.getReceiverPoints());

      System.out.println("\nGoodbye.");
   }


   /* Displays the specified message (prompt) and returns the response
   ** entered by the user at the keyboard.
   */
   private static String getString(String prompt) {
      System.out.print(prompt);
      return keyboard.nextLine();
   }

}