import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;

import sun.net.smtp.*;
import java.io.*;
import javax.swing.event.*;
import javax.swing.border.*;



public class MailSkickare extends JFrame{
	private JButton send = new JButton("Send");
	private JLabel froml = new JLabel("From: ");
	private JLabel tolabel = new JLabel("To: ");
	private JLabel hostl = new JLabel("Smtp Server: ");
	private JLabel subjectl = new JLabel("Subject: ");
	private JTextField fromf = new JTextField(40);	
	private JTextField tofield = new JTextField(40);
	private JTextField hostf = new JTextField(40);
	private JTextField subjectf = new JTextField(40);
	private JTextArea message = new JTextArea(30, 20);
	private JScrollPane jsp = new JScrollPane(message);


	public MailSkickare(){
		
		super("SMTP Client");
		
		//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(tolabel);
		fields.add(hostf);
		//hostf.setText("mail.dsv.su.se");
		tolabel.setForeground(Color.black);
		
		String fromprop = System.getProperty("mail.from", "");
		fromf.setText(fromprop);
		
		tofield.addFocusListener(new FocusAdapter(){
			public void focusGained(FocusEvent e){
			tolabel.setForeground(new Color(98,156,245));
			}
		});
		
		tofield.addFocusListener(new FocusAdapter(){
			public void focusLost(FocusEvent e){
			tolabel.setForeground(Color.black);
			}
		});

		fields.add(tofield);
		froml.setForeground(Color.black);
		labels.add(froml);
		fields.add(fromf);
		
		subjectl.setForeground(Color.black);
		labels.add(subjectl);
		
		subjectf.addFocusListener(new FocusAdapter(){
			public void focusGained(FocusEvent e){
			subjectl.setForeground(new Color(98,156,245));
			}
		});
		subjectf.addFocusListener(new FocusAdapter(){
			public void focusLost(FocusEvent e){
			subjectl.setForeground(Color.black);
			}
		});

		fields.add(subjectf);
		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());
		send.setMnemonic('e');
		p4.add(send);
		//anropa en ActionPerformed class::
		send.addActionListener(new SendAction());

		//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 Send(){
		String host = hostf.getText().trim();
		String from = fromf.getText().trim();
		String to = tofield.getText().trim();
		String subject = subjectf.getText().trim();
		
		
		try
		{
			Properties props = new Properties();
			props.put("mail.smtp.host", host);
			
			Session mailConnection = Session.getInstance(props, null);
			final Message msg = new MimeMessage(mailConnection);
			//Address to = new InternetAddress(to);
			//Address from = new InternetAddress(from);
			
			msg.setContent(message.getText(), "text/plain" );
			msg.setFrom(new InternetAddress(from));
			msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
			msg.setSubject(subject);
			
			Runnable r = new Runnable() {
				public void run() {
					try{
						Transport.send(msg);
						//skicka själv meddelandet
					}
				catch (Exception e) {
					e.printStackTrace();
					//snygg utskrift vid fel :)
				}
			}
			};
			
			Thread t = new Thread(r);
			t.start();
			message.setText("");
			System.out.println("Meddelandet skickat");
		
		}
		catch (Exception e) {
			e.printStackTrace();
			}
	}

class SendAction implements ActionListener{
	public void actionPerformed(ActionEvent e){
	    Send();
	}
    }	


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