package lab04;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;

public class Window extends JFrame implements ActionListener {
    JButton addGrade, removeGrade, addStudent, removeStudent, chooseUserButton, displayStudentList, countAverage, removeButton,
            returnButton, checkPresence;
    JList studentsList;
    JLabel freqLabel;
    Student selectedStudent;
    float selectedGrade;
    School school = new School();
    ArrayList<Student> students;
    int freq =0;

    public void startWindow(boolean visible) {

        students = new ArrayList <Student>();
        setSize(1200, 900);
        setTitle("Dziennik Lekcyjny");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.getContentPane().setLayout(null);
        Buttons();
        setVisible(visible);
        setResizable(true);
        setLayout(null);
    }

    public void Buttons() {

        addGrade = new JButton("Add grades");
        addGrade.setBounds(450, 500, 300, 50);
        addGrade.setVisible(false);

        addGrade.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                addGrade.setVisible(false);
                removeGrade.setVisible(false);
                studentsList.setVisible(false);
                checkPresence.setVisible(false);
               //here.setVisible(false);
               // notHere.setVisible(false);
                selectedStudent = (Student) studentsList.getSelectedValue();
                JTextField gradeField = new JTextField("grade");
                gradeField.setBounds(600,450,100,80);
                add(gradeField);
                //setVisible(true);
                JButton addB = new JButton("Add grade");
                addB.setBounds(450, 450, 150, 80);
                add(addB);
                addB.setVisible(true);
                addB.addActionListener(new ActionListener ()
                {
                    public void actionPerformed(ActionEvent actionEvent) {
                        selectedStudent.addGrade(Float.parseFloat(gradeField.getText()));
                        addB.setVisible(false);
                        addStudent.setVisible(true);
                        addGrade.setVisible(true);
                        removeGrade.setVisible(false);
                        displayStudentList.setVisible(true);
                        gradeField.setVisible(false);
                        //displayStudentList.setVisible(false);
                    }
                });
            }
        });

        removeGrade = new JButton("Remove Grade");
        removeGrade.setBounds(450, 650, 300, 50);
        removeGrade.setVisible(false);
        removeGrade.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                selectedStudent =(Student) studentsList.getSelectedValue();
                JList gradesList = new JList(selectedStudent.getGrades().toArray());
                gradesList.setBounds(500,100,200,200);
                add(gradesList);
                gradesList.setVisible(true);
                removeButton = new JButton("remove grade");
                removeButton.setBounds(900,100,100,100);
                add(removeButton);
                removeButton.setVisible(true);
                removeButton.addActionListener(new ActionListener() {
                    @Override
                    public void actionPerformed(ActionEvent actionEvent) {
                        selectedGrade = (Float)gradesList.getSelectedValue();
                        selectedStudent.getGrades().remove(selectedGrade);
                        displayStudentList.setVisible(true);
                        studentsList.setVisible(false);
                        removeGrade.setVisible(false);
                        addGrade.setVisible(false);
                        addStudent.setVisible(true);
                        gradesList.setVisible(false);
                        removeButton.setVisible(false);

                    }
                });


            }
        });

        addStudent = new JButton("Add student");
        addStudent.setBounds(450, 400, 300, 50);
        addStudent.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                addGrade.setVisible(false);
                removeGrade.setVisible(false);
                addStudent.setVisible(false);
                JTextField lnField = new JTextField("last name");
                JTextField FNfield = new JTextField("first name");
                FNfield.setBounds(700, 400, 300, 70);
                lnField.setBounds(700, 500, 300, 70);
                JButton addButton = new JButton("Add");
                addButton.setBounds(570, 500, 70, 70);
                add(lnField);
                add(FNfield);
                add(addButton);
                addButton.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        students.add(new Student(FNfield.getText(), lnField.getText()));
                        lnField.setVisible(false);
                        addButton.setVisible(false);
                        FNfield.setVisible(false);

                    }
                });

            }
        });

        displayStudentList = new JButton ("Display students");
        displayStudentList.setBounds (700,200,300,50);
        displayStudentList.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                displayStudentList.setVisible(false);
                addStudent.setVisible(false);
                studentsList = new JList (students.toArray());
                studentsList.setBounds(100,100,300,300);
                add(studentsList);
                studentsList.setVisible(true);
                selectedStudent = (Student)studentsList.getSelectedValue();
                addGrade.setVisible(true);
                removeGrade.setVisible(true);

                JButton countFreq = new JButton ("Count frequency");
                countFreq.setBounds(800, 100, 300, 50);
                add(countFreq);
                countFreq.setVisible(true);
                countFreq.addActionListener(new ActionListener() {
                    @Override
                    public void actionPerformed(ActionEvent actionEvent) {
                        selectedStudent = (Student)studentsList.getSelectedValue();
                        //freq =0;
                        for (int i=0 ; i < selectedStudent.getPresence().size(); i++)
                        {
                            if (selectedStudent.getPresence().get(i) ==  true)
                            {
                                freq ++;
                            }
                        }

                        float frequency =(float) freq/selectedStudent.getPresence().size() *100;
                        freqLabel = new JLabel ();
                        freqLabel.setBounds(600,600,100,80);
                        freqLabel.setText(String.valueOf(frequency));
                        add(freqLabel);
                        freqLabel.setVisible(true);
                       // freqLabel.setVisible(false);

                      //  freqLabel.setVisible(true);

                    }
                });
                JButton checkPresence = new JButton ("Check presence");
                checkPresence.setBounds(800,300,200,50);
                add(checkPresence);
                studentsList.setVisible(true);
                checkPresence.addActionListener(new ActionListener() {
                    @Override
                    public void actionPerformed(ActionEvent actionEvent) {
                        JButton here = new JButton ("Present");
                        JButton notHere = new JButton ("Absent");
                        here.setBounds(900,400,100,50);
                        notHere.setBounds(900,450,100,50);
                        add(here);
                        add(notHere);
                        here.setVisible(true);
                        notHere.setVisible(true);
                        here.addActionListener(new ActionListener() {
                            @Override
                            public void actionPerformed(ActionEvent actionEvent) {
                                selectedStudent=(Student) studentsList.getSelectedValue();
                                selectedStudent.addPresence(true);

                            }
                        });
                        notHere.addActionListener(new ActionListener() {
                            @Override
                            public void actionPerformed(ActionEvent actionEvent) {
                                selectedStudent = (Student) studentsList.getSelectedValue();
                                selectedStudent.addPresence(false);
                            }
                        });
                    }
                });

            }
        });


        add(addStudent);
        add(displayStudentList);
        add(removeGrade);
        add(addGrade);

    }

    @Override
    public void actionPerformed(ActionEvent actionEvent) {

    }
}