JLabel l1,l2,l3,l4,l5,l6; //you can change the variable names if you want

JButton jb1,jb2,jb3,jb4,jb5; //for me naming variables is a tedious tasks

JTextField tf1,tf2; //hence I avoid it as much as possible :)

JPasswordField tf3;

JComboBox<String> cb1;

// Below panel for admin login page

MyPanel() {

this.setLayout(null);

this.setPreferredSize(new Dimension(420,420));

l4 = new JLabel("ADMIN LOGIN");

l4.setBounds(135,20,150,50);

l4.setFont(l4.getFont().deriveFont(Font.BOLD));

l4.setFont(l4.getFont().deriveFont(20f));

l3 = new JLabel("Password");

l3.setBounds(130,95,150,30);

tf3 = new JPasswordField(15);

tf3.setBounds(130,120,150,30);

jb3 = new JButton("Submit");

jb3.setBounds(130,170,150,30);

jb3.setActionCommand("admin_submit");

jb4 = new JButton("Back to Log in ?");

jb4.setBounds(130,250,150,25);

jb4.setBorderPainted(false);

jb4.setContentAreaFilled(false);

jb4.setForeground(Color.blue);

jb4.setActionCommand("back");

this.add(l3);

this.add(l4);

this.add(jb3);

this.add(tf3);

this.add(jb4);

}

// Below panel for normal login page

MyPanel(String pname) {

this.setName(pname);

this.setLayout(null);

this.setPreferredSize(new Dimension(420,420));

tf1 = new JTextField();

tf1.setBounds(130,120,150,25);

tf2 = new JTextField();

tf2.setBounds(130,170,150,25);

cb1 = new JComboBox<>();

cb1.setBounds(130,220,150,25);

l1 = new JLabel("Name");

l1.setBounds(130,95,150,30);

l2 = new JLabel("USN");

l2.setBounds(130,145,150,30);

l5 = new JLabel("LOGIN");

l5.setBounds(155,20,150,50);

l5.setFont(l5.getFont().deriveFont(Font.BOLD));

l5.setFont(l5.getFont().deriveFont(30f));

l6 = new JLabel("Subject Code");

l6.setBounds(130,195,150,30);

jb1 = new JButton("Submit");

jb1.setBounds(130,270,150,25);

jb1.setActionCommand("login_submit");

jb2 = new JButton("Log In as Admin ?");

jb2.setBounds(130,350,150,25);

jb2.setBorderPainted(false);

jb2.setContentAreaFilled(false);

jb2.setForeground(Color.blue);

jb2.setActionCommand("admin_panel");

ImageIcon icon = new ImageIcon(getClass().getResource("/images/sync_logo.png")); //location of the icon relative to the project directory

Image img = icon.getImage().getScaledInstance(30, 30, Image.SCALE_SMOOTH);

jb5 = new JButton(new ImageIcon(img));

jb5.setBounds(305, 220, 25, 25);

jb5.setActionCommand("Sync");

jb5.setFocusPainted(false);

this.add(jb1);

this.add(jb2);

this.add(jb5);

this.add(tf1);

this.add(tf2);

this.add(cb1);

this.add(l1);

this.add(l2);

this.add(l5);

this.add(l6);

refreshSubjects();

}

// loads the option into the jcombobox

public void refreshSubjects() {

if (cb1 == null) return;

cb1.setModel(new DefaultComboBoxModel<>(

AppBackend.getConfigValues("Subject").stream()

.sorted(Comparator.comparingDouble(s -> {

try { return Float.parseFloat(s.split(" ")[0]); }

catch (Exception e) { return Float.MAX_VALUE; }

}))

.toArray(String[]::new)

));

cb1.setSelectedItem(null);

}

//Dialog box for Confirmation

public static void createDialog(Frame parent,String name,String usn,String subcode) {

JDialog dialog = new JDialog(parent, "Confirmation!", true);

dialog.setSize(400,250);

dialog.setLocationRelativeTo(parent);

dialog.setLayout(new BorderLayout(10,10));

ArrayList<String> Details = AppBackend.getDetails(usn); //fetches details for confirmation

String[] sem_options = AppBackend.getConfigValues("Sem").toArray(new String[0]);

JComboBox<String> cb1 = new JComboBox<>(sem_options);

cb1.setSelectedItem(Details.get(2));

String[] batch_options = AppBackend.getConfigValues("Batch").toArray(new String[0]);

JComboBox<String> cb2 = new JComboBox<>(batch_options);

cb2.setSelectedItem(Details.get(4));

JPanel form = new JPanel(new GridLayout(6,2,10,10));

form.setBorder(BorderFactory.createEmptyBorder(5, 20, 5, 20));

form.add(new JLabel("Name:"));

form.add(new JLabel(name));

form.add(new JLabel("USN:"));

form.add(new JLabel(usn));

form.add(new JLabel("Subject code:"));

form.add(new JLabel(subcode));

form.add(new JLabel("Department:"));

form.add(new JLabel(Details.get(3)));

form.add(new JLabel("Semester:"));

form.add(cb1);

form.add(new JLabel("Batch:"));

form.add(cb2);

JPanel buttonPanel = new JPanel();

JButton okButton = new JButton("OK");

JButton cancelButton = new JButton("Cancel");

Details.add(0,name);

Details.add(1,usn);

Details.add(2,subcode);

okButton.addActionListener(e -> {

Details.set(5, (String) cb1.getSelectedItem());

Details.set(7, (String) cb2.getSelectedItem());

new AppBackend().insertData(Details); //inserts in local db

CloudDatabaseUpload.syncLocalDataToRemote(); //syncs with cloud

System.exit(0);

});

cancelButton.addActionListener(e -> dialog.dispose());

buttonPanel.add(okButton);

buttonPanel.add(cancelButton);

dialog.add(form, BorderLayout.CENTER);

dialog.add(buttonPanel, BorderLayout.SOUTH);

dialog.getRootPane().setDefaultButton(okButton);

dialog.setVisible(true);

}