/*
 * Copyright (c) 2001 Matthew Feldt. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided the copyright notice above is
 * retained.
 *
 * THIS SOFTWARE IS PROVIDED ''AS IS'' AND WITHOUT ANY EXPRESSED OR
 * IMPLIED WARRANTIES.
 */

/**
 * Portfolio.java
 *
 * Java Examples In A Nutshell Copyright (c) 2000 David Flanagan
 * Exercise 7-2:
 * Modify the Portfolio class of Example 7-3 to remove all hardcoded display
 * strings. Instead, use the ResourceBundle and MessageFormat classes as
 * demonstrated in Example 7-4 and 7-5.
 *
 * @author Matthew Feldt <developer@feldt.com>
 * @version 1.0
 */

package com.feldt.examples.i18n;
import java.text.*;
import java.util.*;
import java.io.*;


public class Portfolio {
	EquityPosition[] positions;
	Date lastQuoteTime = new Date();
	ResourceBundle bundle;

	public Portfolio(EquityPosition[] pos, Date lastQuote, ResourceBundle rb) {
		positions = pos;
		lastQuoteTime = lastQuote;
		bundle = rb;
	}

	public void print(PrintWriter out) {
		// create NumberFormat and DateFormat objects to format data
		NumberFormat number = NumberFormat.getInstance();
		NumberFormat price = NumberFormat.getCurrencyInstance();
		NumberFormat percent = NumberFormat.getPercentInstance();
		DateFormat shortdate = DateFormat.getDateInstance(DateFormat.MEDIUM);
		DateFormat fulldate = DateFormat.getDateTimeInstance(DateFormat.LONG,
								 DateFormat.LONG);

		out.println(bundle.getString("heading.date.text") + " " +
			fulldate.format(lastQuoteTime) + ":");
		out.println(bundle.getString("heading.symbol.text") + "\t" +
			bundle.getString("heading.shares.text") + "\t" +
			bundle.getString("heading.purchased.text") + "\t" +
			bundle.getString("heading.at.text") + "\t" +
			bundle.getString("heading.quote.text") +"\t" +
			bundle.getString("heading.change.text"));

		// display table using the format() methods from the Format objects
		for(int i = 0; i < positions.length; i++) {
			out.print(positions[i].name + "\t");
			out.print(number.format(positions[i].shares) + "\t");
			out.print(shortdate.format(positions[i].purchased) + "\t");
			out.print(price.format(positions[i].bought) + "\t");
			out.print(price.format(positions[i].current) + "\t");
			double change =
				(positions[i].current-positions[i].bought)/positions[i].bought;
			out.println(percent.format(change));
			out.flush();
		}
	}

	static class EquityPosition {
		String name; // stock name
		int shares; // shares held
		Date purchased; // purchase date
		double bought; // purchase price per share
		double current; // current price per share

		EquityPosition(String n, int s, Date when, double then, double now) {
			name = n; shares = s; purchased = when;
			bought = then; current = now;
		}
	}

	/**
	 * This is a test program that demonstrates the class
	 **/
	public static void main(String[] args) {
		final String RESOURCES = "portfolio";

		EquityPosition[] positions = new EquityPosition[] {
			new EquityPosition("XXX", 400,
				new GregorianCalendar(2001, 1, 3).getTime(), 11.90, 13.00),
			new EquityPosition("YYY", 1100,
				new GregorianCalendar(2001, 2, 2).getTime(), 71.09,27.25),
			new EquityPosition("ZZZ", 6000,
				new GregorianCalendar(2001, 4, 17).getTime(), 23.37, 89.12) };
		Locale locale;

		// parse the command line for locale if specified
		if (args.length == 2) locale = new Locale(args[0], args[1]);
		else locale = Locale.getDefault();

		// fetch the appropriate resource bundle
		ResourceBundle bundle = ResourceBundle.getBundle(RESOURCES, locale);

		// Create the portfolio from these positions
		Portfolio portfolio = new Portfolio(positions, new Date(), bundle);

		// Now print the portfolio
		portfolio.print(new PrintWriter(System.out));
	}
}