package jalview.jbgui;

import jalview.gui.AlignmentPanel;
import jalview.gui.Desktop;
import jalview.util.MessageManager;
import jalview.ws.uimodel.PDBSearchResponse.PDBResponseSummary;

import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;

@SuppressWarnings("serial")
public abstract class GStructureChooser extends JPanel implements
        ItemListener
{
  protected String frameTitle = "Structure Chooser";

  protected JInternalFrame mainFrame = new JInternalFrame(frameTitle);



  protected JComboBox<FilterOptions> filterOptionsComboBox = new JComboBox<FilterOptions>();

  protected AlignmentPanel ap;

  protected JLabel resultLabel = new JLabel("Select : ");

  protected JButton ok = new JButton();

  protected JButton cancel = new JButton();

  protected JButton pdbFromFile = new JButton();

  protected JTextField search = new JTextField(16);

  protected JPanel actionPanel = new JPanel();

  protected JPanel filterPanel = new JPanel();

  protected JPanel idInputPanel = new JPanel();

  protected JPanel fileChooserPanel = new JPanel();

  protected JPanel switchableViewsPanel = new JPanel(new CardLayout());

  protected CardLayout switchableViewsLayout = (CardLayout) (switchableViewsPanel
          .getLayout());

  protected BorderLayout mainLayout = new BorderLayout();

  protected BorderLayout idInputPanelLayout = new BorderLayout();

  protected BorderLayout fileChooserPanelLayout = new BorderLayout();

  protected JCheckBox rememberSettings = new JCheckBox("Don't ask me again");

  protected JCheckBox invertFilter = new JCheckBox("Invert");

  protected ImageIcon loadingImage = new ImageIcon(getClass().getResource(
          "/images/loading.gif"));

  protected JLabel loadingImageLabel = new JLabel(loadingImage);

  protected static final String VIEWS_FILTER = "VIEWS_FILTER";

  protected static final String VIEWS_FROM_FILE = "VIEWS_FROM_FILE";

  protected static final String VIEWS_ENTER_ID = "VIEWS_ENTER_ID";

  protected JList<PDBResponseSummary> jListFoundStructures = new JList<PDBResponseSummary>();

  // protected JScrollPane foundStructuresScroller = new JScrollPane(
  // jListFoundStructures);

  protected JTable summaryTable = new JTable();
  protected JScrollPane foundStructuresScroller = new JScrollPane(
          summaryTable);

  public GStructureChooser()
  {
    try
    {
      jbInit();
      mainFrame.setVisible(false);
      mainFrame.invalidate();
      mainFrame.pack();
    } catch (Exception e)
    {
      e.printStackTrace();
    }
  }

  private void jbInit() throws Exception
  {
    ok.setFont(new java.awt.Font("Verdana", 0, 12));
    ok.setText(MessageManager.getString("action.view"));
    ok.addActionListener(new java.awt.event.ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        ok_ActionPerformed();
      }
    });
    cancel.setFont(new java.awt.Font("Verdana", 0, 12));
    cancel.setText(MessageManager.getString("action.cancel"));
    cancel.addActionListener(new java.awt.event.ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        mainFrame.dispose();
      }
    });

    pdbFromFile.setFont(new java.awt.Font("Verdana", 0, 12));
    pdbFromFile.setText("             Select PDB File             ");
    pdbFromFile.addActionListener(new java.awt.event.ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        pdbFromFile_actionPerformed();
      }
    });

    jListFoundStructures
            .setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
    jListFoundStructures.setLayoutOrientation(JList.VERTICAL);
    jListFoundStructures.setVisibleRowCount(-1);
    foundStructuresScroller.setPreferredSize(new Dimension(500, 300));
    foundStructuresScroller
            .setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

    filterOptionsComboBox.setFont(new java.awt.Font("Verdana", 0, 12));
    invertFilter.setFont(new java.awt.Font("Verdana", 0, 12));
    rememberSettings.setFont(new java.awt.Font("Verdana", 0, 12));

    filterOptionsComboBox.addItemListener(this);
    invertFilter.addItemListener(this);

    actionPanel.add(rememberSettings);
    actionPanel.add(ok);
    actionPanel.add(cancel);


    filterPanel.add(resultLabel);
    filterPanel.add(filterOptionsComboBox);
    loadingImageLabel.setVisible(false);

    filterPanel.add(loadingImageLabel);

    filterPanel.add(invertFilter);

    idInputPanel.setLayout(new FlowLayout());
    idInputPanel.add(search);


    fileChooserPanel.setLayout(new FlowLayout());
    fileChooserPanel.add(pdbFromFile);

    switchableViewsPanel.add(fileChooserPanel, VIEWS_FROM_FILE);
    switchableViewsPanel.add(idInputPanel, VIEWS_ENTER_ID);
    switchableViewsPanel.add(foundStructuresScroller, VIEWS_FILTER);

    
    this.setLayout(mainLayout);
    this.add(filterPanel, java.awt.BorderLayout.NORTH);
    this.add(switchableViewsPanel, java.awt.BorderLayout.CENTER);
    this.add(actionPanel, java.awt.BorderLayout.SOUTH);

    mainFrame.setVisible(true);
    mainFrame.setContentPane(this);
    mainFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    Desktop.addInternalFrame(mainFrame, frameTitle, 800, 400);
  }

  
  private ImageIcon scaleImageIcone(ImageIcon imageIcon, int width, int height)
  {
    Image image = imageIcon.getImage(); // transform it

    Image newimg = image.getScaledInstance(width, height,
            java.awt.Image.SCALE_SMOOTH); // scale it the smooth way

    return new ImageIcon(newimg);
  }
  
  @Override
  public void itemStateChanged(ItemEvent e)
  {
    stateChanged(e);
  }

  public class FilterOptions
  {
    private String name;

    private String value;

    private String view;

    public FilterOptions(String name, String value, String view)
    {
      this.name = name;
      this.value = value;
      this.view = view;
    }

    // public FilterOptions(PDBDocField field, String view)
    // {
    // this.name = "Best " + field.getName();
    // this.value = field.getCode();
    // this.view = view;
    // }

    public String getName()
    {
      return name;
    }

    public void setName(String name)
    {
      this.name = name;
    }

    public String getValue()
    {
      return value;
    }

    public void setValue(String value)
    {
      this.value = value;
    }

    public String getView()
    {
      return view;
    }

    public void setView(String view)
    {
      this.view = view;
    }

    public String toString()
    {
      return this.name;
    }
  }

  protected abstract void stateChanged(ItemEvent e);

  protected abstract void updateCurrentView();

  protected abstract void ok_ActionPerformed();

  protected abstract void populateFilterOptions();

  protected abstract void pdbFromFile_actionPerformed();
}