package com.floreantpos.ui.model;

import java.awt.Dimension;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Calendar;
import java.util.Date;
import java.util.Vector;

import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSeparator;
import javax.swing.JTextField;
import javax.swing.KeyStroke;

import com.floreantpos.model.Shift;
import com.floreantpos.model.dao.ShiftDAO;
import com.floreantpos.ui.dialog.POSDialog;
import com.floreantpos.ui.dialog.POSMessageDialog;
import com.floreantpos.util.ShiftUtil;
import com.intellij.uiDesigner.core.GridConstraints;
import com.intellij.uiDesigner.core.GridLayoutManager;
import com.intellij.uiDesigner.core.Spacer;

public class ShiftEntryDialog extends POSDialog {
    private JPanel contentPane;
    private JButton buttonOK;
    private JButton buttonCancel;
    private JComboBox startHour;
    private JComboBox startMin;
    private JComboBox startAmPm;
    private JComboBox endHour;
    private JComboBox endAmPm;
    private JComboBox endMin;
    private JTextField tfShiftName;

    private Vector<Integer> hours;
    private Vector<Integer> mins;

    private Shift shift;
    private Date shiftStart, shiftEnd;

    public ShiftEntryDialog() {
        this(null);
    }

    public ShiftEntryDialog(Shift shift) {
        super();
        setTitle(com.floreantpos.POSConstants.NEW_SHIFT);

        setContentPane(contentPane);
        getRootPane().setDefaultButton(buttonOK);

        hours = new Vector<Integer>();
        for (int i = 1; i <= 12; i++) {
            hours.add(Integer.valueOf(i));
        }

        mins = new Vector<Integer>();
        for (int i = 0; i < 60; i++) {
            mins.add(Integer.valueOf(i));
        }

        startHour.setModel(new DefaultComboBoxModel(hours));
        endHour.setModel(new DefaultComboBoxModel(hours));

        startMin.setModel(new DefaultComboBoxModel(mins));
        endMin.setModel(new DefaultComboBoxModel(mins));

        buttonOK.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                onOK();
            }
        });

        buttonCancel.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                onCancel();
            }
        });

// call onCancel() when cross is clicked
        setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                onCancel();
            }
        });

// call onCancel() on ESCAPE
        contentPane.registerKeyboardAction(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                onCancel();
            }
        }, KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);

        setSize(350, 250);

        setShift(shift);
    }

    private boolean calculateShifts() {
        int hour1 = ((Integer) startHour.getSelectedItem()).intValue();
        int hour2 = ((Integer) endHour.getSelectedItem()).intValue();
        int min1 = ((Integer) startMin.getSelectedItem()).intValue();
        int min2 = ((Integer) endMin.getSelectedItem()).intValue();
        int ampm1 = startAmPm.getSelectedIndex();
        int ampm2 = endAmPm.getSelectedIndex();

        shiftStart = ShiftUtil.buildShiftStartTime(hour1, min1, ampm1, hour2, min2, ampm2);
        shiftEnd = ShiftUtil.buildShiftEndTime(hour1, min1, ampm1, hour2, min2, ampm2);

        if (!shiftEnd.after(shiftStart)) {
            POSMessageDialog.showError(this, com.floreantpos.POSConstants.SHIFT_END_TIME_MUST_BE_GREATER_THAN_SHIFT_START_TIME);
            return false;
        }
        return true;
    }

    private void onOK() {
        try {
            if (!updateModel())
                return;

            ShiftDAO dao = new ShiftDAO();
            if (shift.getId() == null && dao.exists(shift.getName())) {
                POSMessageDialog.showError(this, com.floreantpos.POSConstants.SHIFT_NAME_ALREADY_EXISTS);
                return;
            }
            dao.saveOrUpdate(shift);

            setCanceled(false);

            dispose();
        } catch (Exception e) {
            POSMessageDialog.showError(this, com.floreantpos.POSConstants.ERROR_SAVING_SHIFT_STATE, e);
        }
    }

    private void onCancel() {
        setCanceled(true);
        dispose();
    }

    public Date getShiftStart() {
        return shiftStart;
    }

    public Date getShiftEnd() {
        return shiftEnd;
    }

    public void updateView() {
        if (shift == null) {
            return;
        }

        tfShiftName.setText(shift.getName());

        Date startTime = shift.getStartTime();
        Date endTime = shift.getEndTime();

        Calendar c = Calendar.getInstance();
        c.setTime(startTime);

        startHour.setSelectedIndex(c.get(Calendar.HOUR) - 1);
        startMin.setSelectedIndex(c.get(Calendar.MINUTE));
        startAmPm.setSelectedIndex(c.get(Calendar.AM_PM) == Calendar.AM ? 0 : 1);

        c.setTime(endTime);
        endHour.setSelectedIndex(c.get(Calendar.HOUR) - 1);
        endMin.setSelectedIndex(c.get(Calendar.MINUTE));
        endAmPm.setSelectedIndex(c.get(Calendar.AM_PM) == Calendar.AM ? 0 : 1);
    }

    public boolean updateModel() {
        if (!calculateShifts()) return false;

        if (shift == null) {
            shift = new Shift();
        }
        shift.setName(tfShiftName.getText());
        shift.setStartTime(shiftStart);
        shift.setEndTime(shiftEnd);

        Calendar c = Calendar.getInstance();
        c.setTime(shiftStart);

        long length = Math.abs(shiftStart.getTime() - shiftEnd.getTime());

        shift.setShiftLength(Long.valueOf(length));

        return true;
    }

    public Shift getShift() {
        return shift;
    }

    public void setShift(Shift shift) {
        this.shift = shift;

        updateView();
    }

    {
// GUI initializer generated by IntelliJ IDEA GUI Designer
// >>> IMPORTANT!! <<<
// DO NOT EDIT OR ADD ANY CODE HERE!
        $$$setupUI$$$();
    }

    /**
     * Method generated by IntelliJ IDEA GUI Designer
     * >>> IMPORTANT!! <<<
     * DO NOT edit this method OR call it in your code!
     *
     * @noinspection ALL
     */
    private void $$$setupUI$$$() {
        contentPane = new JPanel();
        contentPane.setLayout(new GridLayoutManager(3, 1, new Insets(10, 10, 10, 10), -1, -1));
        final JPanel panel1 = new JPanel();
        panel1.setLayout(new GridLayoutManager(2, 2, new Insets(0, 0, 0, 0), -1, -1));
        contentPane.add(panel1, new GridConstraints(2, 0, 1, 1, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_BOTH, GridConstraints.SIZEPOLICY_CAN_SHRINK | GridConstraints.SIZEPOLICY_CAN_GROW, 1, null, null, null, 0, false));
        final Spacer spacer1 = new Spacer();
        panel1.add(spacer1, new GridConstraints(1, 0, 1, 1, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_WANT_GROW, 1, null, null, null, 0, false));
        final JPanel panel2 = new JPanel();
        panel2.setLayout(new GridLayoutManager(1, 2, new Insets(0, 0, 0, 0), -1, -1, true, false));
        panel1.add(panel2, new GridConstraints(1, 1, 1, 1, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_BOTH, GridConstraints.SIZEPOLICY_CAN_SHRINK | GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_CAN_SHRINK | GridConstraints.SIZEPOLICY_CAN_GROW, null, null, null, 0, false));
        buttonOK = new JButton();
        buttonOK.setText(com.floreantpos.POSConstants.OK);
        panel2.add(buttonOK, new GridConstraints(0, 0, 1, 1, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_SHRINK | GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        buttonCancel = new JButton();
        buttonCancel.setText(com.floreantpos.POSConstants.CANCEL);
        panel2.add(buttonCancel, new GridConstraints(0, 1, 1, 1, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_SHRINK | GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        final JSeparator separator1 = new JSeparator();
        panel1.add(separator1, new GridConstraints(0, 0, 1, 2, GridConstraints.ANCHOR_SOUTH, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_WANT_GROW, GridConstraints.SIZEPOLICY_WANT_GROW, null, null, null, 0, false));
        final JPanel panel3 = new JPanel();
        panel3.setLayout(new GridLayoutManager(6, 5, new Insets(0, 0, 0, 0), -1, -1));
        contentPane.add(panel3, new GridConstraints(0, 0, 1, 1, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_BOTH, GridConstraints.SIZEPOLICY_CAN_SHRINK | GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_CAN_SHRINK | GridConstraints.SIZEPOLICY_CAN_GROW, null, null, null, 0, false));
        final JLabel label1 = new JLabel();
        label1.setText(com.floreantpos.POSConstants.START_TIME + ":"); //$NON-NLS-1$
        panel3.add(label1, new GridConstraints(1, 0, 1, 1, GridConstraints.ANCHOR_SOUTHEAST, GridConstraints.FILL_NONE, GridConstraints.SIZEPOLICY_FIXED, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        final JSeparator separator2 = new JSeparator();
        panel3.add(separator2, new GridConstraints(1, 1, 1, 4, GridConstraints.ANCHOR_SOUTH, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_WANT_GROW, null, null, null, 0, false));
        final JLabel label2 = new JLabel();
        label2.setText(com.floreantpos.POSConstants.HOUR + ":"); //$NON-NLS-1$
        panel3.add(label2, new GridConstraints(2, 0, 1, 1, GridConstraints.ANCHOR_EAST, GridConstraints.FILL_NONE, GridConstraints.SIZEPOLICY_FIXED, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        startHour = new JComboBox();
        panel3.add(startHour, new GridConstraints(2, 1, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, new Dimension(75, 22), null, 0, false));
        final JLabel label3 = new JLabel();
        label3.setText(com.floreantpos.POSConstants.MIN + ":"); //$NON-NLS-1$
        panel3.add(label3, new GridConstraints(2, 2, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_NONE, GridConstraints.SIZEPOLICY_FIXED, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        startMin = new JComboBox();
        panel3.add(startMin, new GridConstraints(2, 3, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_WANT_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        startAmPm = new JComboBox();
        final DefaultComboBoxModel defaultComboBoxModel1 = new DefaultComboBoxModel();
        defaultComboBoxModel1.addElement(com.floreantpos.POSConstants.AM);
        defaultComboBoxModel1.addElement(com.floreantpos.POSConstants.PM);
        startAmPm.setModel(defaultComboBoxModel1);
        panel3.add(startAmPm, new GridConstraints(2, 4, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        final JLabel label4 = new JLabel();
        label4.setText(com.floreantpos.POSConstants.END_TIME + ":"); //$NON-NLS-1$
        panel3.add(label4, new GridConstraints(4, 0, 1, 1, GridConstraints.ANCHOR_SOUTHEAST, GridConstraints.FILL_NONE, GridConstraints.SIZEPOLICY_FIXED, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        final JSeparator separator3 = new JSeparator();
        panel3.add(separator3, new GridConstraints(4, 1, 1, 4, GridConstraints.ANCHOR_SOUTH, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_WANT_GROW, null, null, new Dimension(-1, 2), 0, false));
        final JLabel label5 = new JLabel();
        label5.setText(com.floreantpos.POSConstants.HOUR + ":"); //$NON-NLS-1$
        panel3.add(label5, new GridConstraints(5, 0, 1, 1, GridConstraints.ANCHOR_EAST, GridConstraints.FILL_NONE, GridConstraints.SIZEPOLICY_FIXED, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        endHour = new JComboBox();
        panel3.add(endHour, new GridConstraints(5, 1, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, new Dimension(75, 22), null, 0, false));
        final JLabel label6 = new JLabel();
        label6.setText(com.floreantpos.POSConstants.MIN + ":"); //$NON-NLS-1$
        panel3.add(label6, new GridConstraints(5, 2, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_NONE, GridConstraints.SIZEPOLICY_FIXED, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        endMin = new JComboBox();
        panel3.add(endMin, new GridConstraints(5, 3, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        endAmPm = new JComboBox();
        final DefaultComboBoxModel defaultComboBoxModel2 = new DefaultComboBoxModel();
        defaultComboBoxModel2.addElement(com.floreantpos.POSConstants.AM);
        defaultComboBoxModel2.addElement(com.floreantpos.POSConstants.PM);
        endAmPm.setModel(defaultComboBoxModel2);
        panel3.add(endAmPm, new GridConstraints(5, 4, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        final Spacer spacer2 = new Spacer();
        panel3.add(spacer2, new GridConstraints(3, 0, 1, 1, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_VERTICAL, 1, GridConstraints.SIZEPOLICY_WANT_GROW, null, null, null, 0, false));
        final JLabel label7 = new JLabel();
        label7.setText(com.floreantpos.POSConstants.SHIFT_NAME + ":"); //$NON-NLS-1$
        panel3.add(label7, new GridConstraints(0, 0, 1, 1, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_NONE, GridConstraints.SIZEPOLICY_FIXED, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0, false));
        tfShiftName = new JTextField();
        panel3.add(tfShiftName, new GridConstraints(0, 1, 1, 4, GridConstraints.ANCHOR_WEST, GridConstraints.FILL_HORIZONTAL, GridConstraints.SIZEPOLICY_WANT_GROW, GridConstraints.SIZEPOLICY_FIXED, null, new Dimension(150, -1), null, 0, false));
        final Spacer spacer3 = new Spacer();
        contentPane.add(spacer3, new GridConstraints(1, 0, 1, 1, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_VERTICAL, 1, GridConstraints.SIZEPOLICY_WANT_GROW, null, null, null, 0, false));
    }

    /**
     * @noinspection ALL
     */
    public JComponent $$$getRootComponent$$$() {
        return contentPane;
    }
}