import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
import java.awt.event.*;
import java.beans.*;
import javax.swing.JList.*;
/**
 * Write a description of class ClassWindow here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class ClassWindow
{
    // instance variables - replace the example below with your own
    private JFrame frame;
    private JLabel classNameLabel;
    private JLabel statusLabel;
    private JButton addTeacherButton;
    private JButton enrollButton;
    private JButton setTimeButton;
    private JButton setRoomButton;
    private JButton setCapacityButton;
    private boolean debug = true;
    private LabClass labClass = new LabClass(5);

    /**
     * Constructor for objects of class ClassWindow
     */
    public ClassWindow()
    {
        // initialise instance variables
        makeFrame();
    }
    
    private void makeFrame()
    {
        frame = new JFrame("Class System");
        JPanel contentPane = (JPanel) frame.getContentPane();
        contentPane.setBorder(new EmptyBorder(10, 10, 10, 10));
        contentPane.setLayout(new BorderLayout(5, 5));
        
        classNameLabel = new JLabel();
        contentPane.add(classNameLabel, BorderLayout.NORTH);
        
        statusLabel = new JLabel();
        contentPane.add(statusLabel, BorderLayout.SOUTH);
        
        JPanel toolbar = new JPanel();
        contentPane.add(toolbar, BorderLayout.WEST);
        toolbar.setLayout(new GridLayout(0, 1));
        toolbar.setBorder(new EtchedBorder());
        
        
        makeButtons(toolbar);
        showClassName(labClass);
        makeMenuBar(frame);
        frame.pack();
        frame.setVisible(true);
    }
    
    private void makeButtons(JPanel toolbar)
    {
        
        
        enrollButton = new JButton("Enroll student");
        enrollButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)  {   enrollStudent();    }
        });
        toolbar.add(enrollButton);
        
        addTeacherButton = new JButton("Add teacher");
        addTeacherButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e)  {   addTeacher();   }
        });
        toolbar.add(addTeacherButton);
        
        setCapacityButton = new JButton("Set class capacity");
        setCapacityButton.addActionListener(new ActionListener()   {
            public void actionPerformed(ActionEvent e)  { setCapacity();    }
        });
        
        toolbar.add(setCapacityButton);
        
        setTimeButton = new JButton("Set day and time");
        setTimeButton.addActionListener(new ActionListener()    {
            public void actionPerformed(ActionEvent e)  { setTime();    }
        });
        toolbar.add(setTimeButton);
        
        setRoomButton = new JButton("Set room");
        setRoomButton.addActionListener(new ActionListener()    {
            public void actionPerformed(ActionEvent e)  {   setRoom();  }
        });
            
        toolbar.add(setRoomButton);
    }
        
    private void makeMenuBar(JFrame frame)
    {
        JMenuBar menubar = new JMenuBar();
        frame.setJMenuBar(menubar);
        
        JMenu menu;
        JMenuItem item;
        
        
        menu = new JMenu("Class");
        menubar.add(menu);
        
            item = new JMenuItem("New class...");
            
            menu.add(item);
            
            item = new JMenuItem("Open class...");
            
            menu.add(item);
            
        menu = new JMenu("Student");
        menubar.add(menu);
            
            item = new JMenuItem("New student...");
            item.addActionListener(new ActionListener() {
                                    public void actionPerformed(ActionEvent e)  {    newStudent();      }
                                });
            menu.add(item);
            
            item = new JMenuItem("Enroll student");
            item.addActionListener(new ActionListener() {
                                    public void actionPerformed(ActionEvent e)  {   enrollStudent();    }
                                });
            menu.add(item);
            
            item = new JMenuItem("Remove student");
            item.addActionListener(new ActionListener() {
                                    public void actionPerformed(ActionEvent e)  {   removeStudent();    }
                                });
            menu.add(item);
        
        menu = new JMenu("Teacher");
        menubar.add(menu);
        
            item = new JMenuItem("New teacher");
            item.addActionListener(new ActionListener() {
                                    public void actionPerformed(ActionEvent e)  {   newTeacher();   }
                                });
            menu.add(item);
            
            item = new JMenuItem("Add teacher");
            item.addActionListener(new ActionListener() {
                                    public void actionPerformed(ActionEvent e)  {   addTeacher();   }
                                });
            menu.add(item);
            
            item = new JMenuItem("Remove teacher");
            item.addActionListener(new ActionListener() {
                                    public void actionPerformed(ActionEvent e)  {   removeTeacher();    }
                                });
            menu.add(item);
        
        menu = new JMenu("Room");
        menubar.add(menu);
        
            item = new JMenuItem("Set room...");
            item.addActionListener(new ActionListener() {
                                    public void actionPerformed(ActionEvent e)  {   setRoom();  }
                                });
            menu.add(item);
            
        menu = new JMenu("Schedule");
        menubar.add(menu);
            
            item = new JMenuItem("Set time...");
            item.addActionListener(new ActionListener() {
                                    public void actionPerformed(ActionEvent e)  {   setTime();  }
                                });
            menu.add(item);
            
        
        
        
    }
    
   /** private List makeList()
    {
        JList list = new JList(); //data has type Object[]
        list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
        list.setLayoutOrientation(JList.VERTICAL);
        list.setVisibleRowCount(10);
        return list;
        JScrollPane listScroller = new JScrollPane(list);
        listScroller.setPreferredSize(new Dimension(250, 80));
        return list; 
}*/
    private void showStatus(String text)
    {
        statusLabel.setText(text);
    }
    
    private void showClassName(LabClass labClass)
    {
        if(debug != false)  {
            classNameLabel.setText("ClassNameLabel working.");
        }
        else    {
        classNameLabel.setText(labClass.getClassName());
       }
    }
    
    private void newStudent()
    {
        JOptionPane newStudentDialog = new JOptionPane();
        String newStudent = newStudentDialog.showInputDialog(null, "Please enter student name:", "Create new student", 1);
        String newStudentID = newStudentDialog.showInputDialog(null, "Please enter student ID:", "Create new student", 1);
        
        if(newStudent != null)   {
            if(newStudent.length() < 6) {
                if(debug != false)  {
                    System.out.println("Student " + newStudent + ", ID " + newStudentID + " created.");
                }
                Student student = new Student(newStudent, newStudentID);
                labClass.enrollStudent(student);
            }
            else    {
                newStudentDialog.showMessageDialog(null, "Student name has to be at least 6 characters", "Enter valid student name", 1);
            }
        }
        else    {
            newStudentDialog.showMessageDialog(null, "You have to enter a valid student name", "Enter valid student name", 1);
        }
        
    }
    
    private void simpleEnrollStudent(Student student)
    {
        JOptionPane enrollStudentDialog = new JOptionPane();
        enrollStudentDialog.showConfirmDialog(null, "Enroll student in class?", "Enroll student", 2);
        
    }
    
    private void enrollStudent()
    {
        //labClass.printStudents();
        if(debug != false)  {
            showStatus("EnrollStudent button clicked.");
        }
    }
    
    private void removeStudent()
    {
    }
    
    private void newTeacher()
    {
        JOptionPane newTeacherDialog = new JOptionPane();
        String newTeacher = newTeacherDialog.showInputDialog(null, "Please enter teacher name", "Create new teacher", 1);
        String newTeacherID = newTeacherDialog.showInputDialog(null, "Please enter teacher ID", "Create new teacher", 1);
        Teacher teacher = new Teacher(newTeacher, newTeacherID);
        labClass.addTeacher(teacher);
    }
    
    private void addTeacher()
    {
        if(debug != false)  {
            showStatus("AddTeacher button clicked.");
        }
    }
    
    private void removeTeacher()
    {
        labClass.removeTeacher();
    }
    
    private void setCapacity()
    {
        JOptionPane setCapacityDialog = new JOptionPane();
        String newCapacity = setCapacityDialog.showInputDialog(null, "Please enter new capacity", "Set class capacity",1);
        int newCapacityInt = Integer.parseInt(newCapacity);
        labClass.setCapacity(newCapacityInt);
    }
    
    private void setRoom()
    {
        JOptionPane setRoomDialog = new JOptionPane();
        String newRoom = setRoomDialog.showInputDialog(null, "Please enter new room", "Set class room", 2);
        labClass.setRoom(newRoom);
    }
    
    
    private void setTime()
    {
        JOptionPane setTimeDialog = new JOptionPane();
        String newTime = setTimeDialog.showInputDialog(null, "Please enter new time in \n the following format: 'Day, HH:MM'",
                                                            "Set class time", 1);
        labClass.setTime(newTime);
    }
    
    
}