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package net.cbaines.suca;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.StringReader;
import javax.security.auth.login.LoginException;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JProgressBar;
import javax.swing.JTextField;
import net.fortuna.ical4j.data.CalendarBuilder;
import net.fortuna.ical4j.data.ParserException;
import net.fortuna.ical4j.model.Calendar;
@SuppressWarnings("serial")
public class CalendarApplet extends JApplet {
private CalendarApplet instance;
// The panel holding the stages
private Container stages;
// Load University Calendar
private JPanel calendarLoadingPanel;
private JTextField usernameTextField;
private JPasswordField passwordTextField;
private JButton fetchCalendarButton;
private JProgressBar fetchCalendarProgress;
// iCal Calendar Creation Options
private JPanel calendarCreationOptions;
private JCheckBox mergeDuplicateEventsWithSeperateLocations = new JCheckBox(
"Merge Duplicate Events with Seperate Locations", true);
private JCheckBox showTerms = new JCheckBox("Show Terms", true);
private JCheckBox showSemesters = new JCheckBox("Show Semesters", true);
private JCheckBox showSemesterWeeks = new JCheckBox("Show Semester Weeks", true);
private JCheckBox mergeHeaders = new JCheckBox("Merge Headers", false);
// Download Calendar
private JPanel downloadCalendarPanel;
private JButton donwloadCalendarButton;
// Data
private volatile String calendarCSVString = null;
private volatile String calendarICALString = null;
public void init() {
// Execute a job on the event-dispatching thread:
// creating this applet's GUI.
try {
javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
createGUI();
}
});
} catch (Exception e) {
System.err.println("createGUI didn't successfully complete");
}
}
void createGUI() {
try {
stages = getContentPane();
stages.setLayout(new BoxLayout(stages, BoxLayout.PAGE_AXIS));
// Load University Calendar Stage
calendarLoadingPanel = new JPanel();
calendarLoadingPanel.setBorder(BorderFactory.createTitledBorder("Load University Calendar"));
JPanel usernamePanel = new JPanel();
usernamePanel.add(new JLabel("Username"));
usernameTextField = new JTextField(10);
usernamePanel.add(usernameTextField);
calendarLoadingPanel.add(usernamePanel);
JPanel passwordPanel = new JPanel();
passwordPanel.add(new JLabel("Password"));
passwordTextField = new JPasswordField(10);
passwordPanel.add(passwordTextField);
calendarLoadingPanel.add(passwordPanel);
fetchCalendarButton = new JButton("Fetch Calendar");
fetchCalendarButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
new FetchThread().start();
}
});
calendarLoadingPanel.add(fetchCalendarButton);
fetchCalendarProgress = new JProgressBar();
fetchCalendarProgress.setIndeterminate(false);
fetchCalendarProgress.setValue(0);
calendarLoadingPanel.add(fetchCalendarProgress);
stages.add(calendarLoadingPanel);
// iCal Calendar Creation Options
calendarCreationOptions = new JPanel();
calendarCreationOptions.setBorder(BorderFactory.createTitledBorder("Calendar Options"));
calendarCreationOptions.add(mergeDuplicateEventsWithSeperateLocations);
calendarCreationOptions.add(showTerms);
calendarCreationOptions.add(showSemesters);
calendarCreationOptions.add(showSemesterWeeks);
calendarCreationOptions.add(mergeHeaders);
stages.add(calendarCreationOptions);
// Calendar Download
downloadCalendarPanel = new JPanel();
downloadCalendarPanel.setBorder(BorderFactory.createTitledBorder("Download Calendar (iCal)"));
donwloadCalendarButton = new JButton("Download Calendar");
donwloadCalendarButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
CreationThread creationThread = new CreationThread();
creationThread.start();
JFileChooser fc = new JFileChooser();
int returnVal = fc.showSaveDialog(instance); // this = Applet
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
try {
creationThread.join();
} catch (InterruptedException e1) {
e1.printStackTrace();
}
try {
BufferedWriter out = new BufferedWriter(new FileWriter(file));
out.write(calendarICALString);
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
});
downloadCalendarPanel.add(donwloadCalendarButton);
stages.add(downloadCalendarPanel);
} catch (Exception e) {
e.printStackTrace();
}
}
private class FetchThread extends Thread {
public FetchThread() {
super();
}
@Override
public void run() {
System.out.println("Start of fetch thread");
fetchCalendarButton.setEnabled(false);
fetchCalendarProgress.setIndeterminate(true);
fetchCalendarProgress.setValue(0);
String csvString;
try {
csvString = new SotonCalendarFetcher(usernameTextField.getText(), String.valueOf(passwordTextField
.getPassword())).fetchAndParseTimetable();
System.out.println("Finished fetch");
calendarCSVString = csvString;
System.out.println("Finished fetch thread");
fetchCalendarButton.setEnabled(true);
fetchCalendarProgress.setIndeterminate(false);
fetchCalendarProgress.setValue(100);
} catch (LoginException e) {
fetchCalendarButton.setEnabled(true);
fetchCalendarProgress.setIndeterminate(false);
fetchCalendarProgress.setValue(0);
JOptionPane.showMessageDialog(instance,
"LoginException: Error logging in, try again, and perhaps also try logging in to SUSSED",
"Inane error", JOptionPane.ERROR_MESSAGE);
} catch (IOException e) {
fetchCalendarButton.setEnabled(true);
fetchCalendarProgress.setIndeterminate(false);
fetchCalendarProgress.setValue(0);
JOptionPane.showMessageDialog(instance,
"IOException: Error logging in, try again, and perhaps also try logging in to SUSSED",
"Inane error", JOptionPane.ERROR_MESSAGE);
}
}
}
private class CreationThread extends Thread {
public CreationThread() {
super();
}
@Override
public void run() {
System.out.println("Starting creation thread");
SotonCalendarParser calParser = new SotonCalendarParser();
calParser.setMergeDuplicateEventsWithSeperateLocations(mergeDuplicateEventsWithSeperateLocations
.isSelected());
calParser.setMergeHeaders(mergeHeaders.isSelected());
calParser.setShowSemesters(showSemesters.isSelected());
calParser.setShowSemesterWeeks(showSemesterWeeks.isSelected());
calParser.setShowTerms(showTerms.isSelected());
CalendarBuilder builder = new CalendarBuilder(calParser);
try {
Calendar calendar = builder.build(new StringReader(calendarCSVString));
calendarICALString = calendar.toString();
} catch (ParserException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
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