/*
 * Redmond8.java
 *
 * Created on March 19, 2002, 11:31 PM
 */

/**
 *
 * @author  mike redmond
 * @version 1.0
 * 
 * Basic ATM with simplifying assumptions - such as only one account in the whole bank
 */
public class Redmond8 {

    /** Creates new Redmond8 */
    public Redmond8() {
    }

    /**
    * @param args the command line arguments
    */
    public static void main (String args[]) {
        //RevisedAccount myAcct = new RevisedAccount();
        Account myAcct = new Account();
        int acct = 0;
        boolean ok;
        // set up one initial account
        System.out.println("Initializing system.");
        System.out.println("Please enter the account number to be used in this simulation");
        String acctNum = SavitchIn.readLine();
        myAcct.setAcctNum(acctNum);
        System.out.println("Please enter the 4 digit PIN to be used in this simulation");
        String pin = SavitchIn.readLine();
        myAcct.setPIN(pin);
        System.out.println("Please enter the beginning balance to be used in this simulation");
        double bal = SavitchIn.readLineDouble();
        // ensure that the balance starts out positive
        while (bal < 0) {
            System.out.println("Please enter A POSITIVE beginning balance to be used in this simulation");
            bal = SavitchIn.readLineDouble();
        }
        myAcct.setBal(bal);
        System.out.println("Please enter the interest rate to be used in this simulation (NOTE 2% is written .02)");
        double rate = SavitchIn.readLineDouble();
        // ensure that the interest rate is reasonable
        while ((rate < 0) || (rate > .20)) {
            System.out.println("Please enter a positive interest rate (no larger than .2) to be used in this simulation (NOTE 2% is written .02)");
            rate = SavitchIn.readLineDouble();
        }
        myAcct.setIntRate(rate);  
        System.out.println("How many days in this simulation");
        int numDays = SavitchIn.readLineInt();
        // ensure that the # days is positive
        while (numDays <= 0) {
            System.out.println("Please enter A POSITIVE number of days in this simulation");
            numDays = SavitchIn.readLineInt();
        }
        System.out.println("In this dummy bank there is only 1 valid account. Work with it:");
        System.out.println("     " + myAcct.toString()); 
        // go through all of the days in the simulation
        // each day - see if anybody is coming
        // if somebody is coming - after ensuring that they are a valid customer
        // allow them to do as many transactions as they want to
        // at the end of the day - pay interest to the account
        for (int day = 0; day < numDays; day++) {
            System.out.println("Is anybody banking today?");
            char answ = SavitchIn.readLineNonwhiteChar();
            // if somebody banking today - check acct num etc then let them bank
            if ((answ == 'Y') || (answ == 'y')) {
                // assume not valid until learn otherwise
                boolean acctOk = false;
                // ensure that acct num and pin are valid
                while (acctOk == false) {
                    // ask user for acct info
                    System.out.println("Enter your account number");
                    String currAcctNum = SavitchIn.readLine();
                    System.out.println("Enter your PIN");
                    String currPIN = SavitchIn.readLine();
                    // ensure that the account number and pin are correct
                    if ((myAcct.getAcctNum().equals(currAcctNum)) &&
                        (myAcct.getPin().equals(currPIN)) ) { 
                            acctOk = true;
                    }
                } //  end validating while
                int choice = 0;
                // let user bank until they indicate that they want to quit
                while (choice != 4) {
                    System.out.println("Choose:");
                    System.out.println("   1) Deposit 2) Withdraw 3) Account Balance 4) Quit");
                    choice = SavitchIn.readLineInt();
                    // handle user choice
                    switch (choice) {
                        case 1:
                            // user depositing - make sure they give a valid amount
                            double depositAmt = -1;
                            while ((depositAmt < 1.0) || (depositAmt > 2000)) {
                                System.out.println("Please enter the deposit amount (between 1 and 2000)");
                                depositAmt = SavitchIn.readLineDouble();
                            }                                     
                            // actually make the deposit
                            ok = myAcct.deposit(depositAmt);
                            break;  // end deposit
                        case 2:
                            // user withdrawing - make sure they give a valid amount
                            double withdrawAmt = -1;
                            while ((withdrawAmt <= 20.0) || (withdrawAmt > 200)) {
                                System.out.println("Please enter the withdraw amount (between 20 and 200)");
                                withdrawAmt = SavitchIn.readLineDouble();
                            }
                            // actually make the withdrawal
                            ok = myAcct.withdraw(withdrawAmt);
                            break;  // end withdraw
                        case 3:
                            // handle balance inquiry
                            System.out.println("Your Account: "); 
                            System.out.println(myAcct.getAcctNum() + "  Bal: " + myAcct.getBal());                                    
                            break;  // end account inquiry
                        default:
                            // didn't choose an action needing a response
                            // can do nothing and user will be reprompted for something to do
                    }  //  end switch
                } // end while choice
            } // end if answ
            //give interest to account at end of day
            double intPaid = myAcct.payInterest(1);
            System.out.println("At end of day " + (day+1) + " interest paid: " + intPaid);
        } // end for
        // report final results
        System.out.println("Times up!");
        System.out.println("Updated account:");
        System.out.println("     " + myAcct.toString());
    }

}