package sample;
import jaxcent.*;

public class Email extends jaxcent.JaxcentPage {

    // To send Email, we require the user to enter a "captcha" number generated randomly.
    //
    // We could also use (or build on the fly, for that matter) a random captcha image,
    // but everybody is doing that!  Being different means the spammers don't have incentive to
    // focus on your method.  With Jaxcent, there are many ways to do this.  E.g. you could
    // alter the text of a para and ask the user to input "the bold phrase from the para above"
    // or "the italicized word in line 1" etc... 

    int captchaNumber = 0;

    HtmlButton sendMail = new HtmlButton( this, "SendMail" ) {
        protected void onClick( java.util.Map data )
        {
            sendMail( data );
        }
    };

    HtmlButton getCode = new HtmlButton( this, "GetCode" ) {
        protected void onClick()
        {
            showCode();
        }
    };

    HtmlDiv mainDiv = new HtmlDiv( this, "mainDiv" );
    HtmlDiv resultsDiv = new HtmlDiv( this, "resultsDiv" );

    void showCode()
    {
        // Make a new message code.
        captchaNumber = 1001 + new java.util.Random().nextInt( 8999 );
        try {
            showInputDialog( "The message code is " + captchaNumber + "\nYou can copy it from the box below", String.valueOf( captchaNumber ));
        } catch (Jaxception jax) {
            jax.printStackTrace();
        }
    }

    void sendMail( java.util.Map data )
    {
        try {
            String from = (String) data.get( "username" );
            if ( from.equals( "" )) {
                showMessageDialog( "The \"Your Name\" field is required" );
                return;
            }
            String subject = (String) data.get( "subject" );
            String email = (String) data.get( "email" );
            if ( email.equals( "" )) {
                showMessageDialog( "The \"Email\" field is required" );
                return;
            }
            String email2 = (String) data.get( "email2" );
            if ( email2.equals( "" )) {
                showMessageDialog( "The \"Email Verification\" field is required" );
                return;
            }
            if ( ! email.equalsIgnoreCase( email2 )) {
                showMessageDialog( "The Email Verification does not match" );
                return;
            }
            if ( email.indexOf( '@' ) <= 0 || email.indexOf( '@' ) == email.length() - 1) {
                showMessageDialog( "Email is not in a proper form" );
                return;
            }
            String about = ((String) data.get( "about" )).substring(2);
            String text = (String) data.get( "text" );
            if ( text.equals( "" )) {
                showMessageDialog( "Message text is required" );
                return;
            }
            String code = (String) data.get( "code" );
            if ( code.equals( "" ) || captchaNumber == 0 ) {
                showMessageDialog( "Please click the \"Get Message Code\" to get a message code, and enter it in the \"Message Code\" field." );
                return;
            }
            if ( Integer.parseInt( code ) != captchaNumber ) {
                showMessageDialog( "Code does not match.\nPlease click the \"Get Message Code\" to get a message code, and enter it in the \"Message Code\" field." );
                return;
            }

            // Everything ok, send the email.
            sun.net.smtp.SmtpClient client= new sun.net.smtp.SmtpClient( your-smtp-host-here );
	    client.from( smtp-from-address-here );
            client.to( smtp-to-address-here );
       	    java.io.PrintStream message = client.startMessage();
            message.print( "From: " );
            message.print( from + " <" + email + ">\n");
            message.print( "To: " );
	    message.print( email-to-address-here );
            message.print( "\n" );
            message.print( "Subject: " + subject + "\n\n" );
            message.print( "Message sent at " + new java.util.Date() + "\n" );
            message.print( "About: " + about + "\n" );
            message.print( text );
            message.print( "\n" );
            message.flush();
            client.closeServer();
            mainDiv.hide();
            resultsDiv.show();
            resultsDiv.setInnerHTML( "<FONT SIZE=+1>Thank you.  Your message has been sent.</FONT>\n" );
        } catch (NumberFormatException nfe) {
            showMessageDialog( "Message code is not valid.\nPlease click the \"Get Message Code\" to get a message code, and enter it in the \"Message Code\" field." );
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}