package timeflow.views;

import timeflow.data.db.*;
import timeflow.data.time.*;
import timeflow.model.*;
import timeflow.vis.*;
import timeflow.app.ui.*;

import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.net.URL;
import java.util.*;

import javax.swing.*;

public abstract class AbstractVisualizationView extends JPanel
{

        Image buffer;
        Graphics2D graphics;
        Point mouse = new Point(-10000, 0), firstMouse = new Point();
        boolean mouseIsDown;
        ArrayList<Mouseover> objectLocations = new ArrayList<Mouseover>();
        TFModel model;
        Act selectedAct;
        RoughTime selectedTime;
        Set<JMenuItem> urlItems = new HashSet<JMenuItem>();

        public AbstractVisualizationView(TFModel model)
        {
                this.model = model;

                // deal with mouseovers.
                addMouseMotionListener(new MouseMotionListener()
                {

                        @Override
                        public void mouseDragged(MouseEvent e)
                        {
                                mouse.setLocation(e.getX(), e.getY());
                                repaint();
                        }

                        @Override
                        public void mouseMoved(MouseEvent e)
                        {
                                mouse.setLocation(e.getX(), e.getY());
                                repaint();
                        }
                });


                final JPopupMenu popup = new JPopupMenu();
                final JMenuItem edit = new JMenuItem("Edit");
                edit.addActionListener(new ActionListener()
                {

                        @Override
                        public void actionPerformed(ActionEvent e)
                        {
                                EditRecordPanel.edit(getModel(), selectedAct);
                        }
                });
                popup.add(edit);

                final JMenuItem delete = new JMenuItem("Delete");
                popup.add(delete);
                delete.addActionListener(new ActionListener()
                {

                        @Override
                        public void actionPerformed(ActionEvent e)
                        {
                                getModel().getDB().delete(selectedAct);
                                getModel().noteDelete(this);
                        }
                });

                final JMenuItem add = new JMenuItem("New...");
                popup.add(add);
                add.addActionListener(new ActionListener()
                {

                        @Override
                        public void actionPerformed(ActionEvent e)
                        {
                                EditRecordPanel.add(getModel(), selectedTime);
                        }
                });

                // deal with right-click.
                addMouseListener(new MouseAdapter()
                {

                        public void mousePressed(MouseEvent e)
                        {
                                pop(e);
                        }

                        public void mouseReleased(MouseEvent e)
                        {
                                pop(e);
                        }

                        private void pop(MouseEvent e)
                        {
                                if (e.isPopupTrigger())
                                {
                                        Point p = new Point(e.getX(), e.getY());
                                        Mouseover o = find(p);
                                        boolean onAct = o != null && o.thing instanceof VisualAct;
                                        if (onAct)
                                        {
                                                VisualAct v = (VisualAct) o.thing;
                                                selectedAct = v.getAct();
                                                String name = " '" + v.getLabel() + "'";
                                                edit.setText("Edit" + name + "...");
                                                delete.setText("Delete" + name);
                                                edit.setEnabled(true);
                                                delete.setEnabled(true);
                                        } else
                                        {
                                                edit.setEnabled(false);
                                                edit.setText("Edit Event");
                                                delete.setEnabled(false);
                                                delete.setText("Delete Event");
                                        }
                                        selectedTime = getTime(p);
                                        if (selectedTime != null || onAct)
                                        {
                                                add.setEnabled(selectedTime != null);
                                                add.setText(selectedTime == null ? "Add" : "Add Event At " + selectedTime.format() + "...");

                                                java.util.List<Field> urlFields = getModel().getDB().getFields(URL.class);
                                                if (urlFields.size() > 0)
                                                {
                                                        // remove any old items.
                                                        for (JMenuItem m : urlItems)
                                                        {
                                                                popup.remove(m);
                                                        }
                                                        urlItems.clear();

                                                        if (onAct)
                                                        {
                                                                Act a = ((VisualAct) o.thing).getAct();
                                                                for (Field f : urlFields)
                                                                {
                                                                        final URL url = a.getURL(f);
                                                                        JMenuItem go = new JMenuItem("Go to " + url);
                                                                        go.addActionListener(new ActionListener()
                                                                        {

                                                                                @Override
                                                                                public void actionPerformed(ActionEvent e)
                                                                                {
                                                                                        Display.launchBrowser(url.toString());
                                                                                }
                                                                        });
                                                                        popup.add(go);
                                                                        urlItems.add(go);
                                                                }
                                                        }
                                                }

                                                popup.show(e.getComponent(), p.x, p.y);
                                        }
                                }
                        }
                });
        }

        public RoughTime getTime(Point p)
        {
                return null;
        }

        public TFModel getModel()
        {
                return model;
        }

        @Override
        public void setBounds(int x, int y, int w, int h)
        {
                super.setBounds(x, y, w, h);
                if (w > 0 && h > 0)
                {
                        if (graphics != null)
                        {
                                graphics.dispose();
                        }
                        buffer = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
                        graphics = (Graphics2D) buffer.getGraphics();
                        drawVisualization();
                        repaint();
                }

        }

        void drawVisualization()
        {
                drawVisualization(graphics);
        }

        protected abstract void drawVisualization(Graphics2D g);

        protected boolean paintOnTop(Graphics2D g, int w, int h)
        {
                return false;
        }

        protected Mouseover find(Point p)
        {
                for (Mouseover o : objectLocations)
                {
                        if (o.contains(mouse))
                        {
                                return o;
                        }
                }
                return null;
        }

        public final void paintComponent(Graphics g1)
        {
                Graphics2D g = (Graphics2D) g1;
                g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
                g.drawImage(buffer, 0, 0, null);
                
                int w = getSize().width, h = getSize().height;
                if (paintOnTop(g, w, h))
                {
                        return;
                }
                
                Mouseover highlight = find(mouse);
                if (highlight != null)
                {
                        highlight.draw(g, w, h, getModel().getDisplay());
                }
        }
}