import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
import javax.swing.event.*;
import javax.swing.border.*;
//import sun.net.smtp.*;


public class MailReceiver extends JFrame{
	private JButton receiver = new JButton("Recieve");
	private JLabel userl = new JLabel("Username: ");
	private JLabel passl = new JLabel("Password: ");
	private JLabel hostl = new JLabel("Smtp Server: ");
	
	private JTextField passf = new JTextField(40);	
	private JTextField userf = new JTextField(40);
	private JTextField hostf = new JTextField(40);
	
	private JTextArea message = new JTextArea(30, 20);
	private JScrollPane jsp = new JScrollPane(message);


	public MailReceiver(){
		
		super("Mail Server");
		
		//Grafik med alla möjliga lyssnare läggs i en gridlayout till slut
		getContentPane().setLayout(new BorderLayout());
		JPanel labels = new JPanel();
		labels.setLayout(new GridLayout(4, 1));
		hostl.setForeground(Color.black);
		labels.add(hostl);
		
		JPanel fields=new JPanel();
		fields.setLayout(new GridLayout(4, 1));
		String hostprop = System.getProperty("mail.host", "");
		hostf.setText(hostprop);
		
		hostf.addFocusListener(new FocusAdapter(){
			public void focusGained(FocusEvent e){
			hostl.setForeground(new Color(98,156,245));
			}
		});

		hostf.addFocusListener(new FocusAdapter(){
		public void focusLost(FocusEvent e){
			hostl.setForeground(Color.black);
			}
		});
		labels.add(userl);
		fields.add(hostf);
		hostf.setText("mail.dsv.su.se");
		userl.setForeground(Color.black);
		
		
		
		passf.addFocusListener(new FocusAdapter(){
			public void focusGained(FocusEvent e){
			passl.setForeground(new Color(98,156,245));
			}
		});
		
		passf.addFocusListener(new FocusAdapter(){
			public void focusLost(FocusEvent e){
			passl.setForeground(Color.black);
			}
		});

		fields.add(userf);
		passl.setForeground(Color.black);
		labels.add(passl);
		fields.add(passf);
		
		
		Box north = Box.createHorizontalBox();
		north.add(labels);
		north.add(fields);
		
		//font i textfältet!!
		message.setFont(new Font("SansSerif",Font.BOLD,14));
		
		jsp.setBorder(new TitledBorder(new
		EtchedBorder(),"Mail Message"));

		JPanel p4=new JPanel(new FlowLayout());
		receiver.setMnemonic('e');
		p4.add(receiver);
		//anropa en ActionPerformed class::
		receiver.addActionListener(new ReceiveAction());

		//lägg till komponenterna i "containern"
		getContentPane().add(north,BorderLayout.NORTH);
		getContentPane().add(jsp,BorderLayout.CENTER);
		getContentPane().add(p4,BorderLayout.SOUTH);

		setSize(600,500);
		setResizable(false);
		setVisible(true);


		//lägg allt i en rad!!
		addWindowListener(new WindowAdapter(){
		public void windowClosing(WindowEvent e){
			System.exit(0);
		}
		});

}
	// metod för att sända meddelandet
	public void Receive(){
		String host = hostf.getText().trim();
		String username = userf.getText().trim();
		String password = passf.getText().trim();
		String provider = "pop3";
		ArrayList samling = new ArrayList();
		
		
		try
		{
			Properties props = new Properties();
			props.put("mail.smtp.host", host);
			Session session = Session.getDefaultInstance(props, null);
			Store store = session.getStore(provider);
			store.connect(host,username,password);
			
			//öppna inboxen
			Folder inbox = store.getFolder("INBOX");
				if (inbox == null){
					message.setText("Ingen Inbox");
					System.exit(1);
				}
			//endast läsbar
			inbox.open(Folder.READ_ONLY);
			
			//ställer in att vi vill hämta meddelande 1 - 20
			Message[] messages = inbox.getMessages(1,20);
				for (int i=0; i<messages.length; i++){
					
					message.append("--------------- Message " + (i+1) + "-------------");
					message.append("\n" +"\n");
					Enumeration headers = messages[i].getAllHeaders();
					while (headers.hasMoreElements()){
						Header h = (Header) headers.nextElement();	
						message.append(h.getName() + ": " + h.getValue() +"\n" +"\n");
					}	
					message.append("\n"+"innehåll: "+messages[i].getContent());
					samling.add(messages[i]);
					
				}
				inbox.close(false);
				store.close();
			
			} catch (Exception e) {
					e.printStackTrace();
			}

}

class ReceiveAction implements ActionListener{
	public void actionPerformed(ActionEvent e){
	    Receive();
	}
    }	


public static void main(String[] args){
	MailReceiver mails = new MailReceiver();
	mails.show();
}
}