// Project: Observer
// Module: casino
// Source code file: Manager.java.
// The Manager object is the observer.
// The SlotMachine objects are the observables.

import java.io.*;
import java.text.*;
import java.util.ArrayList;
import java.util.Date;
import it313.util.*;
public class Manager implements Observer {
    private String logFileName;
    private PrintWriter pw;
    private ArrayList<SlotMachine> machines =
            new ArrayList<SlotMachine>( );

    public Manager(String theFileName)
            throws IOException {

        logFileName = theFileName;
        // Open PrintWriter object for append.
        pw = new PrintWriter(new BufferedWriter(
                new FileWriter(logFileName, true)));
    }

    // When notified of a jackpot, write a line
    // to the logfile.
    public void update(Observable machine, Object id) {
        DateFormat dateFormat =
                new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
        Date date = new Date();
        String dateString = dateFormat.format(date);
        pw.println(id + " " + dateString);
        pw.flush( );
        System.out.println(id + " " + dateString);
    }
}