/**
 * A self-serving machine for train ticket purchasing
 *
 * APTX-4869
 * 09-29-2019
 */
public class TicketMachine
{
    private int price;
    private int balance;
    private int total;
    private int refund;
    private int tickets;

    public TicketMachine(int ticketCost)
    {
        price = ticketCost;
        balance = 0;
        total = 0;
        refund = 0;
    }

    public int getPrice()
    {
        return price;
    }

    public int getBalance()
    {
        return balance;
    }

    public void getTickets(int tkt)
    {
        if(tkt >= 1)
        {
            tickets = tkt;
        }
        else
        {
            System.out.println("Please insert the right number of tickets.\n");
        }
    }


    public void insertMoney(int money)
    {
        if (money > 0)
        {
            balance = balance + money;
        }
        else
        {
            System.out.println("Please insert the right amount of money.\n");
        }
    }

    /**
     * Print a ticket.
     * Update the total collected and
     * reduce the balance to zero.
     */

    public void purchaseTickets()
    {
        System.out.println ("Ticket cost = $"+price+".");
        System.out.println ("Your total amount of money = $"+balance+".");
        if (balance > 0)
        {
            if(balance >= (price*tickets))
            {
                // Simulate the printing of a ticket.
                System.out.println("\n+++++++++++++++++++++++++++++++++\n");

                System.out.println("Mystery Train [Final Destination]");
                System.out.println("Ticket(s) : "+ tickets +".");
                System.out.println("Total ticket(s) cost : $"+ (price*tickets) +".\n");
                System.out.println("+++++++++++++++++++++++++++++++++");
                System.out.println();

                // Update the total collected with the balance.
                total = total + balance;
                refund = refundBalance();
                if (refund == 0)
                {
                    System.out.println("No refundable money.\n");
                }
                else
                {
                    System.out.println("Refundable money: $"+refund+".\n");
                }
                // Clear the balance.
                balance = 0;
            }
            else
            {
                System.out.println ("Ticket to buy : "+tickets);
                System.out.println("Please insert enough money. Insert $"
                +((price * tickets)-balance)+ " more.\n");
            }
        }
        else
        {
            System.out.println("Insert your money.\n");
        }
    }

    public int refundBalance()
    {
        int refundable;
        refundable = balance - price * tickets;
        balance = 0;
        return refundable;
    }
}