import java.io.IOException;
import java.util.Scanner;
import java.io.EOFException;

/**
   This program tests random access. You can access existing
   accounts and deposit money, or create new accounts. The
   accounts are saved in a random access file.
*/
public class BankDataTester {  
   public static void main(String[] args) throws IOException {  
      Scanner in = new Scanner(System.in);
      BankData data = new BankData();
      try {  
         data.open("bank.dat");
         boolean done = false;
         while (!done) {  
            System.out.print("Account number: ");
            int accountNumber = in.nextInt();
            System.out.print("Amount to deposit: ");
            double amount = in.nextDouble();

            int position = data.find(accountNumber);
            BankAccount account;
            if (position >= 0) {
               account = data.read(position);
               account.deposit(amount);
               System.out.println("new balance=" + account.getBalance());
            }
            else  { // Add account            
               account = new BankAccount(accountNumber, amount);
               position = data.size();
               System.out.println("adding new account");
            }
            data.write(position, account);

            System.out.print("Done? (Y/N) ");
            String input = in.next();
            if (input.equalsIgnoreCase("Y")) done = true;
         }    
         BankAccount acc = null;
         int n = 0;
         while(true) {
        	 acc = data.read(n++);
        	 System.out.print(acc.getAccountNumber() + " ; ");
        	 System.out.println(acc.getBalance());
         }
      }
      catch(EOFException eof) {}
      finally {
         data.close();
      }
   }
}