import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.text.DefaultFormatterFactory;
import javax.swing.text.MaskFormatter;
import java.awt.*;
import java.io.IOException;
import java.text.ParseException;
import java.util.HashMap;
import java.util.Optional;
import java.util.Stack;

public class FormMapWithSetArtilleries extends JFrame {
    private JMenuBar menuBar;
    private JPanel pictureBox;
    private JPanel toolsGroup;
    private JLabel toolsLabel;
    private JComboBox<String> comboBoxMapSelector;
    private JButton buttonAddArtillery;
    private JPanel paneArtilleries;
    private JFormattedTextField textBoxPosition;
    private JButton buttonRemoveArtillery;
    private JButton buttonShowStorage;
    private JButton buttonUp;
    private JButton buttonDown;
    private JButton buttonLeft;
    private JButton buttonRight;
    private JButton buttonShowOnMap;
    private JLabel mapsLabel;
    private JTextField textFieldMapName;
    private JButton buttonAddMap;
    private JList<String> listBoxMaps;
    private JPanel mapsGroup;
    private JButton buttonDeleteMap;
    private JButton buttonShowDeleted;

    private Image bufferedImage;
    private final HashMap<String, AbstractMap> _mapsDict = new HashMap<>() {{
        put("Простая карта", new SimpleMap());
        put("Лесная карта", new ForestMap());
    }};
    private final MapsCollection _mapsCollection;
    private final Stack<IDrawingObject> deletedObjects = new Stack<>();

    public FormMapWithSetArtilleries() {
        this.setTitle("Artillery");
        this.setContentPane(paneArtilleries);
        this.setSize(640, 530);
        this.setVisible(true);

        try {
            textBoxPosition.setFormatterFactory(new DefaultFormatterFactory(new MaskFormatter("##")));
        } catch (ParseException e) {
            e.printStackTrace();
        }

        _mapsCollection = new MapsCollection(pictureBox.getWidth(), pictureBox.getHeight());

        menuBar = new JMenuBar();

        JMenu fileMenu = new JMenu("Файл");
        menuBar.add(fileMenu);

        JMenuItem saveMenuItem = new JMenuItem("Сохранить");
        saveMenuItem.addActionListener(e -> {
            JFileChooser dialog = new JFileChooser();
            dialog.setFileFilter(new FileNameExtensionFilter("TXT file", "txt"));
            dialog.showSaveDialog(this);

            try {
                if (_mapsCollection.saveData(dialog.getSelectedFile().getAbsolutePath())) {
                    JOptionPane.showMessageDialog(this, "Сохранение прошло успешно", "Успех", JOptionPane.INFORMATION_MESSAGE);
                } else {
                    JOptionPane.showMessageDialog(this, "Не сохранилось", "Провал", JOptionPane.INFORMATION_MESSAGE);
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        });
        fileMenu.add(saveMenuItem);

        JMenuItem loadMenuItem = new JMenuItem("Загрузить");
        loadMenuItem.addActionListener(e -> {
            JFileChooser dialog = new JFileChooser();
            dialog.setFileFilter(new FileNameExtensionFilter("TXT file", "txt"));
            dialog.showOpenDialog(this);

            try {
                if (_mapsCollection.loadData(dialog.getSelectedFile().getAbsolutePath())) {
                    reloadMaps();
                    JOptionPane.showMessageDialog(this, "Загрузка прошла успешно", "Успех", JOptionPane.INFORMATION_MESSAGE);
                } else {
                    JOptionPane.showMessageDialog(this, "Не загрузилось", "Провал", JOptionPane.INFORMATION_MESSAGE);
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        });
        fileMenu.add(loadMenuItem);

        JMenuItem saveMapMenuItem = new JMenuItem("Сохранить карту");
        saveMapMenuItem.addActionListener(e -> {
            JFileChooser dialog = new JFileChooser();
            dialog.setFileFilter(new FileNameExtensionFilter("TXT file", "txt"));
            dialog.showSaveDialog(this);

            try {
                if (_mapsCollection.saveMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse(""), dialog.getSelectedFile().getAbsolutePath())) {
                    JOptionPane.showMessageDialog(this, "Сохранение прошло успешно", "Успех", JOptionPane.INFORMATION_MESSAGE);
                } else {
                    JOptionPane.showMessageDialog(this, "Не сохранилось", "Провал", JOptionPane.INFORMATION_MESSAGE);
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        });
        fileMenu.add(saveMapMenuItem);

        JMenuItem loadMapMenuItem = new JMenuItem("Загрузить карту");
        loadMapMenuItem.addActionListener(e -> {
            JFileChooser dialog = new JFileChooser();
            dialog.setFileFilter(new FileNameExtensionFilter("TXT file", "txt"));
            dialog.showOpenDialog(this);

            try {
                if (_mapsCollection.loadMap(dialog.getSelectedFile().getAbsolutePath())) {
                    reloadMaps();
                    JOptionPane.showMessageDialog(this, "Загрузка прошла успешно", "Успех", JOptionPane.INFORMATION_MESSAGE);
                } else {
                    JOptionPane.showMessageDialog(this, "Не загрузилось", "Провал", JOptionPane.INFORMATION_MESSAGE);
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        });
        fileMenu.add(loadMapMenuItem);

        setJMenuBar(menuBar);

        comboBoxMapSelector.removeAllItems();
        for (var key : _mapsDict.keySet()) {
            comboBoxMapSelector.addItem(key);
        }

        buttonAddMap.addActionListener(e -> {
            if (comboBoxMapSelector.getSelectedIndex() == -1 || textFieldMapName.getText() == null || textFieldMapName.getText().isEmpty()) {
                JOptionPane.showMessageDialog(this, "Не все данные заполнены", "Ошибка", JOptionPane.ERROR_MESSAGE);
                return;
            }
            if (!_mapsDict.containsKey((String)comboBoxMapSelector.getSelectedItem())) {
                JOptionPane.showMessageDialog(this, "Нет такой карты", "Ошибка", JOptionPane.ERROR_MESSAGE);
                return;
            }
            _mapsCollection.addMap(textFieldMapName.getText(), _mapsDict.get((String)comboBoxMapSelector.getSelectedItem()));
            reloadMaps();
        });

        buttonDeleteMap.addActionListener(e -> {
            if (listBoxMaps.getSelectedIndex() == -1) {
                return;
            }

            if (JOptionPane.showConfirmDialog(this, "Удалить карту " + listBoxMaps.getSelectedValue() + "?", "Удаление", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
                _mapsCollection.deleteMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse(""));
                reloadMaps();
            }
        });

        listBoxMaps.addListSelectionListener(e -> {
            if (listBoxMaps.getSelectedValue() != null) {
                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showSet();
                repaint();
            }
        });

        buttonAddArtillery.addActionListener(e -> {
            FormArtilleryConfig form = new FormArtilleryConfig();
            form.addListener(artillery -> {
                if (listBoxMaps.getSelectedIndex() == -1) {
                    return;
                }

                if (artillery != null) {
                    DrawingObjectArtillery objectArtillery = new DrawingObjectArtillery(artillery);
                    if (_mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).addArtillery(objectArtillery) != -1)
                    {
                        JOptionPane.showMessageDialog(this, "Объект добавлен", "Успех", JOptionPane.INFORMATION_MESSAGE);
                        bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showSet();
                        repaint();
                    }
                    else
                    {
                        JOptionPane.showMessageDialog(this, "Не удалось добавить объект", "Провал", JOptionPane.INFORMATION_MESSAGE);
                    }
                }
            });
            form.setVisible(true);
        });

        buttonRemoveArtillery.addActionListener(e -> {
            String text = textBoxPosition.getText();
            if (text == null || text.isEmpty()) {
                return;
            }

            if (JOptionPane.showConfirmDialog(this, "Удалить объект?", "Удаление", JOptionPane.YES_NO_OPTION) == JOptionPane.NO_OPTION) {
                return;
            }

            int position = Integer.parseInt(text);

            IDrawingObject deleted = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).removeArtilleryAt(position);
            if (deleted != null) {
                deletedObjects.push(deleted);
                JOptionPane.showMessageDialog(this, "Объект удалён", "Успех", JOptionPane.INFORMATION_MESSAGE);
                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showSet();
                repaint();
            } else {
                JOptionPane.showMessageDialog(this, "Не удалось удалить объект", "Провал", JOptionPane.INFORMATION_MESSAGE);
            }
        });

        buttonShowStorage.addActionListener(e -> {
            if (listBoxMaps.getSelectedIndex() == -1) {
                return;
            }
            bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showSet();
            repaint();
        });

        buttonShowOnMap.addActionListener(e -> {
            if (listBoxMaps.getSelectedIndex() == -1) {
                return;
            }
            bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showOnMap();
            repaint();
        });

        buttonShowDeleted.addActionListener(e -> {
            if (!deletedObjects.empty()) {
                DrawingObjectArtillery deleted = (DrawingObjectArtillery) deletedObjects.pop();
                FormArtillery dialog = new FormArtillery(deleted.getArtillery());
                dialog.setSize(800, 500);
                dialog.setModalityType(Dialog.ModalityType.APPLICATION_MODAL);
                dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);

                dialog.setVisible(true);
            } else {
                JOptionPane.showMessageDialog(this, "Стек удалённых объектов пуст", "Провал", JOptionPane.INFORMATION_MESSAGE);
            }
        });

        buttonLeft.addActionListener(e -> {
            if (listBoxMaps.getSelectedIndex() != -1) {
                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).moveObject(Direction.Left);
                repaint();
            }
        });
        buttonRight.addActionListener(e -> {
            if (listBoxMaps.getSelectedIndex() != -1) {
                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).moveObject(Direction.Right);
                repaint();
            }
        });
        buttonUp.addActionListener(e -> {
            if (listBoxMaps.getSelectedIndex() != -1) {
                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).moveObject(Direction.Up);
                repaint();
            }
        });
        buttonDown.addActionListener(e -> {
            if (listBoxMaps.getSelectedIndex() != -1) {
                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).moveObject(Direction.Down);
                repaint();
            }
        });
    }

    private void reloadMaps() {
        int index = listBoxMaps.getSelectedIndex();

        listBoxMaps.setListData(_mapsCollection.getKeys().toArray(new String[0]));
        int size = listBoxMaps.getModel().getSize();

        if (size > 0 && (index == -1 || index >= size)) {
            listBoxMaps.setSelectedIndex(0);
        } else if (index > -1 && index < size) {
            listBoxMaps.setSelectedIndex(index);
        }
    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);

        if (bufferedImage != null) {
            pictureBox.paintComponents(bufferedImage.getGraphics());
            pictureBox.getGraphics().drawImage(bufferedImage, 0, 0, null);
        }
    }
}