/*	AddressBook.java
*	@author Charles Bell
*	@version July 1, 2002
*/

import java.awt.*;
import java.io.*;
import java.util.*;
import javax.swing.*;

public class AddressBook{
	
	final String addressBookFileExtension = ".abf";
	private Vector entries = new Vector();
	private boolean debug = false;
		
	public AddressBook(){
		init();
	}
	
	public static void main(String[] args){
		new AddressBook();
	}
	
	public void init(){
		entries = getAddressBookEntries();
		ActionSelector selector = new ActionSelector();
		boolean done = false;
		String selection = "";
		while (!done){
			selection = selector.getActionSelection(selection);
			if (selection.compareTo("Add Address Book Entry") == 0){
				entries.add(addAddressBookEntry());
			}else if (selection.compareTo("Edit Address Book Entry") == 0){
				editAddressBookEntry();
			}else if (selection.compareTo("View Address Book Entries") == 0){
				viewAddressBookEntries();
			}			
			done = (selection.compareTo("Exit") == 0);
		}
		System.exit(0);		
	}
	
	
	public Vector getAddressBookEntries(){
		
		Vector v = new Vector();
		File current = new File(".");
		File[] addressBookFiles = current.listFiles(new AddressBookFileFilter());
		AddressBookReader reader = new AddressBookReader();
		for (int i = 0; i < addressBookFiles.length; i++){
			AddressBookEntry nextEntry = reader.read(addressBookFiles[i]);
			v.add(nextEntry);
		}
		if (debug) System.out.println("found " + v.size() + " Address Book entries.");
		return v;
	}
	
	public AddressBookEntry addAddressBookEntry(){
		if (debug) System.out.println("addAddressBookEntry()");
		AddressBookEntry newEntry = new AddressBookEntry();
		String id = getNextID();
		while (id.length() < 4){
			id = "0" + id;
		}
		newEntry.setID(id);
		AddressBookEditor editor = new AddressBookEditor();
		newEntry = editor.edit(newEntry);
		AddressBookWriter writer = new AddressBookWriter();
		writer.write(newEntry);
		return newEntry;
	}
		
	public void editAddressBookEntry(){
		if (debug) System.out.println("editAddressBookEntry()");
		AddressBookEntrySelector selector = new AddressBookEntrySelector();
		AddressBookEntry entry = selector.getSelection();
		if (debug) System.out.println("Selected: " + entry.getName());
		if (entry != null) {
			AddressBookEditor editor = new AddressBookEditor();
			entry = editor.edit(entry);
			AddressBookWriter writer = new AddressBookWriter();
			writer.write(entry);
		}
	}
	
	public void viewAddressBookEntries(){
		if (debug) System.out.println("viewAddressBookEntries()");
		AddressBookEntrySelector selector = new AddressBookEntrySelector();
		AddressBookEntry entry = new AddressBookEntry();
		while (entry != null){
			entry = selector.getSelection();
			if (entry != null){
				if (debug) System.out.println("Selected: " + entry.getName());
				AddressBookViewer viewer = new AddressBookViewer();
				viewer.view(entry);
			}
		}
	}
	
	public String getNextID(){
		File current = new File(".");
		String[] addressBookFileNames = current.list(new AddressBookFileFilter());
		int last = 0;
		for (int i = 0; i < addressBookFileNames.length; i++){
			String nextName = addressBookFileNames[i];
			String numberPart = nextName.substring(0,nextName.indexOf(addressBookFileExtension));
			int number = toInt(numberPart);
			if (number > 0) last = Math.max(last,number);
		}
		last++;
		if (debug) System.out.println(String.valueOf(last));
		return String.valueOf(last);		
	}
	
	private int toInt(String s){
		int n = -1;
		try{
			n = Integer.parseInt(s);
		}catch(NumberFormatException nfe){
			System.err.println("NumberFormatException: " + nfe.getMessage());
			n = -1;
		}
		return n;
	}

	
	class AddressBookReader{
		
		public AddressBookEntry read(File f){
			AddressBookEntry entry = new AddressBookEntry();
			try{
				Properties properties = new Properties();
				properties.load(new FileInputStream(f));
				entry.setID(properties.getProperty("ID"));
				entry.setName(properties.getProperty("Name"));
				entry.setHomeAddress(properties.getProperty("HomeAddress"));
				entry.setHomePhoneNumber(properties.getProperty("HomePhoneNumber"));
				entry.setBusinessAddress(properties.getProperty("BusinessAddress"));
				entry.setBusinessPhoneNumber(properties.getProperty("BusinessPhoneNumber"));
				entry.setFaxMachineNumber(properties.getProperty("FaxMachineNumber"));
				entry.setCellularPhoneNumber(properties.getProperty("CellularPhoneNumber"));
				entry.setPagerNumber(properties.getProperty("PagerNumber"));
				if (debug) System.out.println(entry.toString());
			}catch(FileNotFoundException fnfe){
				System.err.println("FileNotFoundException: " + fnfe.getMessage());
			}catch(IOException ioe){
				System.err.println("IOException: " + ioe.getMessage());
			}			
			return entry;
		}
	}

	class AddressBookWriter{
		
		public void write(AddressBookEntry entry){
			try{
				FileWriter fw = new FileWriter(entry.getID() + addressBookFileExtension);
				fw.write("ID=" + entry.getID() + "\n");
				fw.write("Name=" + entry.getName() + "\n");
				fw.write("HomeAddress=" + entry.getHomeAddress() + "\n");
				fw.write("HomePhoneNumber=" + entry.getHomePhoneNumber() + "\n");
				fw.write("BusinessAddress=" + entry.getBusinessAddress() + "\n");
				fw.write("BusinessPhoneNumber=" + entry.getBusinessPhoneNumber() + "\n");
				fw.write("FaxMachineNumber=" + entry.getFaxMachineNumber() + "\n");
				fw.write("CellularPhoneNumber=" + entry.getCellularPhoneNumber() + "\n");
				fw.write("PagerNumber=" + entry.getPagerNumber());
				fw.close();
			}catch(FileNotFoundException fnfe){
				System.err.println("FileNotFoundException: " + fnfe.getMessage());
			}catch(IOException ioe){
				System.err.println("IOException: " + ioe.getMessage());
			}
		}
	}
	
	class AddressBookEntry{
	
		private String id;
		private String name;
		private String homeAddress;
		private String homePhoneNumber;
		private String businessAddress;
		private String businessPhoneNumber; 
		private String faxMachineNumber;
		private String cellularPhoneNumber;
		private String pagerNumber;
		
		public AddressBookEntry(){
				
			this.id = "";
			this.name = "";
			this.homeAddress = "";
			this.homePhoneNumber = "";
			this.businessAddress = "";
			this.businessPhoneNumber = ""; 
			this.faxMachineNumber = "";
			this.cellularPhoneNumber = "";
			this.pagerNumber = "";		
		}
	
		public AddressBookEntry(String id, String name, String homeAddress, 
			String homePhoneNumber, String businessAddress, String businessPhoneNumber, 
			String faxMachineNumber, String cellularPhoneNumber, String pagerNumber){
				
			this.id = id;
			this.name = name;
			this.homeAddress = homeAddress;
			this.homePhoneNumber = homePhoneNumber;
			this.businessAddress = businessAddress;
			this.businessPhoneNumber = businessPhoneNumber; 
			this.faxMachineNumber = faxMachineNumber;
			this.cellularPhoneNumber = cellularPhoneNumber;
			this.pagerNumber = pagerNumber;		
		}
	
		public String getID(){
			return id;
		}
		public String getName(){
			return name;
		}
		public String getHomeAddress(){
			return homeAddress;
		}
		public String getHomePhoneNumber(){
			return homePhoneNumber;
		}
		public String getBusinessAddress(){
			return businessAddress;
		}
		public String getBusinessPhoneNumber(){
			return businessPhoneNumber;
		}
		public String getFaxMachineNumber(){
			return faxMachineNumber;
		}
		public String getCellularPhoneNumber(){
			return cellularPhoneNumber;
		}
		public String getPagerNumber(){
			return pagerNumber;
		}
		
		public void setID(String s){
			id = s;
		}
		public void setName(String s){
			name = s;
		}
		public void setHomeAddress(String s){
			homeAddress = s;
		}
		public void setHomePhoneNumber(String s){
			homePhoneNumber = s;
		}
		public void setBusinessAddress(String s){
			businessAddress = s;
		}
		public void setBusinessPhoneNumber(String s){
			businessPhoneNumber = s;
		}
		public void setFaxMachineNumber(String s){
			faxMachineNumber = s;
		}
		public void setCellularPhoneNumber(String s){
			cellularPhoneNumber = s;
		}
		public void setPagerNumber(String s){
			pagerNumber = s;
		}
		
		public String toString(){
			return
				"ID: " + getID() + "\n" +
				"Name: " + getName() + "\n" +
				"Home Address: " + getHomeAddress() + "\n" + 
				"Home Phone Number: " + getHomePhoneNumber() + "\n" +
				"Business Address: " + getBusinessAddress() + "\n" +
				"Business Phone Number: " + getBusinessPhoneNumber() + "\n" +
				"Fax Machine Number: " + getFaxMachineNumber() + "\n" +
				"Cellular Phone Number:" + getCellularPhoneNumber() + "\n" +
				"Pager Number: " + getPagerNumber();
	
		}
	}
	
	class ActionSelector{
		
		private String[] actions = {
			"Add Address Book Entry", 
			"Edit Address Book Entry", 
			"View Address Book Entries", 
			"Exit"};

		/**	Pops up a user interface of JRadio buttons to select an action
		*	from a pallette of allowable Action Names. 
		*/
		public String getActionSelection(String current){
			String choice = current;
			String message = "Select Action:";
			String[] options = getOptions();
			JFrame f = new JFrame();
			
			JPanel buttonPanel = new JPanel();
			if (options.length/2 == 0){
				buttonPanel.setLayout(new GridLayout(options.length/2,2));
			}else{
				buttonPanel.setLayout(new GridLayout(options.length/2+1,2));
			}
			ButtonGroup buttongroup = new ButtonGroup();
	
			JRadioButton[] buttons = new JRadioButton[options.length];
			for (int i = 0;i<options.length;i++){
				buttons[i] = new JRadioButton(options[i],(current.compareTo(options[i]) == 0));
				buttonPanel.add(buttons[i]);
				buttongroup.add(buttons[i]);
	
			}
			JScrollPane scrollpane = new JScrollPane(buttonPanel);
			Object[] array = {message,scrollpane};
			scrollpane.setFont(new Font("SansSerif",Font.PLAIN,8));
			JOptionPane editpane = new JOptionPane(scrollpane,JOptionPane.PLAIN_MESSAGE,JOptionPane.OK_CANCEL_OPTION);
			editpane.setFont(new Font("SansSerif",Font.PLAIN,8));
			JDialog dialog = editpane.createDialog(f,message);
			Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
			f.pack();
			f.setLocationRelativeTo(null);
			dialog.show();
			for (int i = 0;i<options.length;i++){
				if (buttons[i].isSelected()) {
					choice = buttons[i].getText();
				}
			}
			dialog.dispose();
			f.dispose();
			return choice;
		}
	
		private String[] getOptions(){
			return actions;
		}
	}
	
	class AddressBookFileFilter implements FilenameFilter{
		public boolean accept(File dir, String name){
			return (name.indexOf(addressBookFileExtension) > 0);
		}			
	}
	
	class AddressBookEditor {

		/**	Pops up a user interface to edit an AddressBookEntry. 
		*/
		public AddressBookEntry edit(AddressBookEntry entry){
			String message = "Edit Address Book Entry";
			JFrame f = new JFrame();
			
			JPanel editorPanel = new JPanel();
			editorPanel.add(new JLabel("Name:"));
			JTextField nameField = new JTextField(entry.getName());
			editorPanel.add(nameField);
			
			editorPanel.add(new JLabel("Home Address:"));
			JTextField homeAddressField = new JTextField(entry.getHomeAddress());
			editorPanel.add(homeAddressField);

			editorPanel.add(new JLabel("Home Phone Number:"));
			JTextField homePhoneNumberField = new JTextField(entry.getHomePhoneNumber());
			editorPanel.add(homePhoneNumberField);
			
			editorPanel.add(new JLabel("Business Address:"));
			JTextField businessAddressField = new JTextField(entry.getBusinessAddress());
			editorPanel.add(businessAddressField);
			
			editorPanel.add(new JLabel("Business Phone Number:"));
			JTextField businessPhoneNumberField = new JTextField(entry.getBusinessPhoneNumber());
			editorPanel.add(businessPhoneNumberField);
			
			editorPanel.add(new JLabel("Fax Machine Number:"));
			JTextField faxMachineNumberField = new JTextField(entry.getFaxMachineNumber());
			editorPanel.add(faxMachineNumberField);
			
			editorPanel.add(new JLabel("Cellular Phone Number:"));
			JTextField cellularPhoneNumberField = new JTextField(entry.getCellularPhoneNumber());
			editorPanel.add(cellularPhoneNumberField);
			
			editorPanel.add(new JLabel("Pager Number:"));		
			JTextField pagerNumberField = new JTextField(entry.getPagerNumber());
			editorPanel.add(pagerNumberField);		

			editorPanel.setLayout(new GridLayout(8,2));
	
			Object[] array = {message,editorPanel};
			JOptionPane editpane = new JOptionPane(editorPanel,JOptionPane.PLAIN_MESSAGE,JOptionPane.OK_CANCEL_OPTION) ;
			editpane.setFont(new Font("SansSerif",Font.PLAIN,8));
			JDialog dialog = editpane.createDialog(f,message);
			Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
			f.pack();
			f.setLocationRelativeTo(null);
			dialog.show();
			entry.setName(nameField.getText());
			entry.setHomeAddress(homeAddressField.getText());
			entry.setHomePhoneNumber(homePhoneNumberField.getText());
			entry.setBusinessAddress(businessAddressField.getText());
			entry.setBusinessPhoneNumber(faxMachineNumberField.getText());
			entry.setFaxMachineNumber(faxMachineNumberField.getText());
			entry.setCellularPhoneNumber(cellularPhoneNumberField.getText());
			entry.setPagerNumber(pagerNumberField.getText());
			dialog.dispose();
			f.dispose();
			return entry;
		}		
	}

		class AddressBookViewer {

		/**	Pops up a user interface to view an AddressBookEntry. 
		*/
		public void view(AddressBookEntry entry){
			String message = "Edit Address Book Entry";
			JFrame f = new JFrame();
			
			JPanel editorPanel = new JPanel();
			editorPanel.add(new JLabel("Name:"));
			JTextField nameField = new JTextField(entry.getName());
			editorPanel.add(nameField);
			
			editorPanel.add(new JLabel("Home Address:"));
			JTextField homeAddressField = new JTextField(entry.getHomeAddress());
			editorPanel.add(homeAddressField);

			editorPanel.add(new JLabel("Home Phone Number:"));
			JTextField homePhoneNumberField = new JTextField(entry.getHomePhoneNumber());
			editorPanel.add(homePhoneNumberField);
			
			editorPanel.add(new JLabel("Business Address:"));
			JTextField businessAddressField = new JTextField(entry.getBusinessAddress());
			editorPanel.add(businessAddressField);
			
			editorPanel.add(new JLabel("Business Phone Number:"));
			JTextField businessPhoneNumberField = new JTextField(entry.getBusinessPhoneNumber());
			editorPanel.add(businessPhoneNumberField);
			
			editorPanel.add(new JLabel("Fax Machine Number:"));
			JTextField faxMachineNumberField = new JTextField(entry.getFaxMachineNumber());
			editorPanel.add(faxMachineNumberField);
			
			editorPanel.add(new JLabel("Cellular Phone Number:"));
			JTextField cellularPhoneNumberField = new JTextField(entry.getCellularPhoneNumber());
			editorPanel.add(cellularPhoneNumberField);
			
			editorPanel.add(new JLabel("Pager Number:"));		
			JTextField pagerNumberField = new JTextField(entry.getPagerNumber());
			editorPanel.add(pagerNumberField);		

			editorPanel.setLayout(new GridLayout(8,2));
	
			Object[] array = {message,editorPanel};
			JOptionPane editpane = new JOptionPane(editorPanel,JOptionPane.PLAIN_MESSAGE,JOptionPane.OK_CANCEL_OPTION) ;
			editpane.setFont(new Font("SansSerif",Font.PLAIN,8));
			JDialog dialog = editpane.createDialog(f,message);
			Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
			f.pack();
			f.setLocationRelativeTo(null);
			dialog.show();
			dialog.dispose();
			f.dispose();
		}		
	}

	class AddressBookEntrySelector{
		
		/**	Pops up a user interface of JRadio buttons to select an AddressBookEntry.
		*	from a pallette of all AddressBookEntries. 
		*/
		public AddressBookEntry getSelection(){
			String message = "Select an Address Book Entry";
			JFrame f = new JFrame();
			
			JPanel buttonPanel = new JPanel();
			if (entries.size() == 0){
				buttonPanel.setLayout(new GridLayout(entries.size()/2,2));
			}else{
				buttonPanel.setLayout(new GridLayout(entries.size()/2+1,2));
			}
			ButtonGroup buttongroup = new ButtonGroup();
	
			JRadioButton[] buttons = new JRadioButton[entries.size()];
			for (int i = 0;i<entries.size();i++){
				AddressBookEntry nextEntry = (AddressBookEntry) entries.elementAt(i);
				if (debug) System.out.println(nextEntry.toString());
				buttons[i] = new JRadioButton(nextEntry.getName());
				buttonPanel.add(buttons[i]);
				buttongroup.add(buttons[i]);	
			}
			JScrollPane scrollpane = new JScrollPane(buttonPanel);
			Object[] array = {message,scrollpane};
			scrollpane.setFont(new Font("SansSerif",Font.PLAIN,8));
			JOptionPane editpane = new JOptionPane(scrollpane,JOptionPane.PLAIN_MESSAGE,JOptionPane.OK_CANCEL_OPTION);
			editpane.setFont(new Font("SansSerif",Font.PLAIN,8));
			JDialog dialog = editpane.createDialog(f,message);
			Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
			f.pack();
			f.setLocationRelativeTo(null);
			dialog.show();
			AddressBookEntry choice = null;
			for (int i = 0;i<entries.size();i++){
				if (buttons[i].isSelected()) {
					choice = (AddressBookEntry) entries.elementAt(i);
				}
			}
			dialog.dispose();
			f.dispose();
			return choice;
		}
	}
	
}