/* Java application that makes use of the DieBlackJackCompetition class to
** simulate the playing of DieBlackJack as a competition among any number
** of players.  
**
** The program accepts the number of players and the "goal" (both as positive 
** integer values) as either run arguments or in response to prompts.
**
** CMPS 134 Fall 2019 
** Authors: P.M.J & R.W.M. 
*/
import java.util.Scanner;

public class DieBlackJackCompetitionClient {

   public static void main(String[] args) {
      String horizontalLine = "--------------------------";
      int numberOfPlayers = getIntArg(args, 0, "Enter number of players:>");
      int goal = getIntArg(args, 1, "Enter goal:>");

      DieBlackJackCompetition game = new DieBlackJackCompetition(numberOfPlayers,goal);
      String round;
      System.out.println("Initial State: " + game.toString());
      System.out.print("Players' status:");
      printStatus(game);
      System.out.println();

      int roundCntr = 1;
      boolean gameOver = false;

      // Loop to play one round after another until the game is over
      do {
         System.out.println(horizontalLine);
         System.out.printf("Playing round #%d ...\n", roundCntr);
         round = game.playRound();
         gameOver = game.over();
         if (gameOver) {
            System.out.println("... No one played, so game is over ...");
         }
         System.out.println(round + game.toString());
         System.out.print("Players' status:");
         printStatus(game);
         System.out.println();
         roundCntr++;
      } while (!game.over());

      System.out.println("Done!!!");
   }


   /* Method that prints out the status of each player (as one of the codes
   ** 'A', 'W' or 'L', for Active, Winner or Loser).
   */
   private static void printStatus(DieBlackJackCompetition game) {
      for(int i=0; i<game.getNumberOfPlayers(); i++) {
         System.out.print(game.getStatus(i));
      }
   }

   /* Returns args[index] converted to an int, unless there is no such array
   ** element, in which case it prints the given prompt and returns the user's
   ** response, which must be an int.
   */
   private static int getIntArg(String args[], int index, String prompt) {
      int result = 0;
      if(args.length > index) {
         result = Integer.parseInt(args[index]);
      } else {
         System.out.print(prompt);
         result = new Scanner(System.in).nextInt();
      }
      return result;
   }
}