package osu.cse1223;

/*
 * Project07.java
 *
 *   A program that plays the dice game high/low
 *   Used to practice breaking code up into methods.
 *
 * @author Jeff Casavant
 *
 */

import java.util.Scanner;


public class HighLow {


    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Welcome to the High-Low table.");
        int money = 100;
        int bet = 1;
        char hls = 'h';
        int roll = 7;
        int win = 0;
        while(bet>0&&money>0){
            bet = getBet(in, money);
            hls = getHighLow(in);
            roll = getRoll();
            roll += getRoll();
            win = determineWinnings(hls,bet,roll);
            System.out.println("The roll: " + roll + ".  Your bet: " + hls +". Your winnings: " + win + ".");
            money += win;
        }
        System.out.println("Your final worth: " + money + ".  Profit: " + (money - 100) + ".");
        System.out.println("Thanks for playing!");
    }


    // Given a Scanner and a current maximum amount of money, prompt the user for
    // an integer representing the number of dollars that they want to bet.  This
    // number must be between 0 and to maximum number of dollars.  If the user enters
    // a number that is out of bounds, display an error message and ask again.
    // Return the bet to the calling program.
    private static int getBet(Scanner in, int currentPool) {
        System.out.println("Your total money stands at " + currentPool + ".  Bet?");
        int bet = in.nextInt();
        in.nextLine();
        while(! (bet<=currentPool)){
            System.out.println("You haven't got that much to bet.  Bet?");
            bet = in.nextInt();
            in.nextLine();
        }
        return bet;
    }

    // Given a Scanner, prompt the user for a single character indicating whether they
    // would like to bet High ('H'), Low ('L') or Sevens ('S').  Your code should accept
    // either capital or lowercase answers, but should display an error if the user attempts
    // to enter anything but one of these 3 values and prompt for a valid answer.
    // Return the character to the calling program.
    private static char getHighLow(Scanner in) {
        System.out.println("High, low, or sevens? (h,l,s)");
        char hls = in.nextLine().charAt(0);
        hls = Character.toLowerCase(hls);
        while(!(hls == 'h' || hls == 'l' || hls == 's')){
            System.out.println("Sorry, don't understand.  High, low, or sevens? (h,l,s)");
            hls = in.nextLine().charAt(0);
        }
        return hls;
        }

    // Produce a random roll of a single six-sided die and return that value to the calling
    // program
    private static int getRoll() {
        return (int)(Math.random()*5)+1;
    }

    // Given the choice of high, low or sevens, the player's bet and the total result of
    // the roll of the dice, determine how much the player has won.  If the player loses
    // the bet then winnings should be negative.  If the player wins, the winnings should
    // be equal to the bet if the choice is High or Low and 4 times the bet if the choice
    // was Sevens.  Return the winnings to the calling program.
    private static int determineWinnings(char highLow, int bet, int roll) {
        if((roll>8 && highLow == 'h')||(roll<6 && highLow == 'l')||(roll==7 && highLow == 's')){
            if(roll == 7){
                return bet * 4;
            } else {
                return bet;
            }
        } else {
            return -1 * bet;
        }
    }

}