// This program simulates a simplified version of European Roulette.
//
// DEVELOPMENT NOTES:
// (These notes would not be in your program's comments. They are here
// to help you understand important topics or elements of this code.)
//
// Notice the use of a Random object to generate random numbers, and the
//   fencepost nature of the main loop. Notice also that the "driver" 
//   loop is in main, with the major work left to methods.
//
// The conditionals in the spinWheel method are poorly structured in this
//   version of the program. These will be updated in the next version.
import java.util.*;

public class Roulette {
   public static void main(String[] args) {
      Scanner console = new Scanner(System.in);
      Random rand = new Random();
      
      int bank = 100;
      int max = bank;
      int numSpins = 0;
      int bet = getBet(console, bank);
      while (bet != 0) {
         bank = spinWheel(console, rand, bet, bank);

         System.out.println();
         bet = getBet(console, bank);       
      }
   }
   
   public static int getBet(Scanner console, int bank) {
      System.out.println("Current bank: $" + bank);
      System.out.print("Bet how much (0 to quit)? $");
      int bet = console.nextInt();
      return Math.min(bet, bank);   
   }
   
   public static int spinWheel(Scanner console, Random rand, int bet, int bank) {
      System.out.print("High or low? ");
      String pick = console.next();
      
      int spin = rand.nextInt(37);
      
      System.out.println("Spin: " + spin);
      if (spin > 18) {
         if (pick.equalsIgnoreCase("high")) {
            System.out.println("You win!");
            bank += bet;
         } else {
            System.out.println("You lose. :-(");
            bank -= bet;
         }
      } else if (spin == 0) {
         System.out.println("You lose. :-(");
         bank -= bet;
      } else {		// spin <= 18, but not 0
         if (pick.equalsIgnoreCase("low")) {
            System.out.println("You win!");
            bank += bet;
         } else {
            System.out.println("You lose. :-(");
            bank -= bet;
         }
      }
      return bank;   
   }
}