package credit;

import java.rmi.*;


public class Shopper {

    public static void main(String args[]) {
   
        CreditManager cm = null;
        CreditCard account = null;

        // Check the command line.
        if (args.length < 2) {
            System.err.println("Usage:");
            System.err.println("java Shopper <server> <account name>");
            System.exit (1);
        }

        // Create and install a security manager.
        System.setSecurityManager(new RMISecurityManager());

        // Obtain reference to card manager.
        try {
            String url = new String ("//" + args[0] + "/cardManager");
            System.out.println ("Shopper: lookup cardManager, url = " + url);
            Object t = Naming.lookup( url );
            System.out.println( "object returned = " + t );
            System.out.println( "Class of obj = " + t.getClass() );
            cm = (CreditManager)t;
            //cm = (CreditManager)Naming.lookup(url);
        } catch (Exception e) {
            System.out.println("Error in getting card manager" + e);
        }

        // Get user's account.
        try {
            account = cm.findCreditAccount(args[1]);
            System.out.println ("Found account for " + args[1]);
        } catch (Exception e) {
            System.out.println("Error in getting account for " + args[1]);
        }
 
        // Do some transactions.
        try {
            System.out.println("Available credit is: "
                               + account.getCreditLine());
            System.out.println("Changing pin number for account");
            account.setSignature(1234);
            System.out.println("Buying a new watch for $100");
            account.makePurchase(100.00f, 1234);
            System.out.println("Available credit is now: " +
                                account.getCreditLine());
            System.out.println("Buying a new pair of shoes for $160");
            account.makePurchase(160.00f, 1234);
            System.out.println("Available credit is now: "+
                                account.getCreditLine());
            System.out.println("CardHolder: Paying off $136 of balance");
            account.payTowardsBalance(136.00f);
            System.out.println("Available credit is now: "+
                                account.getCreditLine());
        } catch (Exception e) {
            System.out.println("Transaction error for " + args[1]);
        }
   
       System.exit(0);
    }
}