package jalview.gui;

import java.util.ArrayList;
import java.util.Hashtable;

import javax.swing.JDialog;
import javax.swing.JInternalFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.event.ListSelectionEvent;

import com.sun.tools.corba.se.idl.InvalidArgument;

import net.miginfocom.swing.MigLayout;

import jalview.jbgui.GRestInputParamEditDialog;
import jalview.ws.params.ArgumentI;
import jalview.ws.params.InvalidArgumentException;
import jalview.ws.params.OptionI;
import jalview.ws.params.ParameterI;
import jalview.ws.rest.InputType;
import jalview.ws.rest.RestServiceDescription;

public class RestInputParamEditDialog extends GRestInputParamEditDialog
        implements OptsParametersContainerI
{
  Hashtable<String, Class> typeclass = new Hashtable<String, Class>();

  Hashtable<String, ArrayList<JPanel>> typeopts = new Hashtable<String, ArrayList<JPanel>>();

  Hashtable<String,OptsAndParamsPage> opanps = new Hashtable<String, OptsAndParamsPage>();
  
  private InputType getTypeFor(String name)
  {
    try
    {
      return (InputType) (typeclass.get(name).getConstructor()
              .newInstance(null));
    } catch (Throwable x)
    {
      System.err
              .println("Unexpected exception when instantiating rest input type.");
      x.printStackTrace();
    }
    return null;
  }

  int reply;
  JalviewDialog frame = new JalviewDialog()
  {
    
    @Override
    protected void raiseClosed()
    {
      
    }
    
    @Override
    protected void okPressed()
    {
      reply=JOptionPane.OK_OPTION; 
    }
    
    @Override
    protected void cancelPressed()
    {
      reply=JOptionPane.CANCEL_OPTION; 
      
    }
  };
  InputType old,current;
  public RestInputParamEditDialog(
          RestServiceEditorPane restServiceEditorPane,
          RestServiceDescription currentservice, InputType toedit)
  {
    initFor(restServiceEditorPane, currentservice, toedit);
    frame.waitForInput();
    // TODO: warn user if they are about to overwrite an existing parameter because they have used the same name when editing a different parameter.
    // TODO: make any press of the return key cause 'OK' to be pressed
  }
  private void initFor(RestServiceEditorPane restServiceEditorPane,
          RestServiceDescription currentservice, InputType toedit)
  {
    okcancel.add(frame.cancel);
    okcancel.add(frame.ok);
    frame.initDialogFrame(dpane, true, true, "Edit parameter for service "+currentservice.getName(), 600,800);
    
    initTypeLists();
    reply=JOptionPane.CANCEL_OPTION;
    old = toedit;
    current = null;
    if (old!=null) {
      setStateFor(old);
    }
    updated = updated && reply==JOptionPane.OK_OPTION;
    frame.validate();
  }

  public RestInputParamEditDialog(
          RestServiceEditorPane restServiceEditorPane,
          RestServiceDescription currentservice, String string)
  {
    initFor(restServiceEditorPane, currentservice,null);
    tok.setText(string);
    frame.waitForInput();
  }

  private void setStateFor(InputType current)
  {
    tok.setText(current.token);
    OptsAndParamsPage opanp=opanps.get(current.getURLtokenPrefix());
    for (OptionI ops:current.getOptions())
    {
      if (ops instanceof ParameterI)
      {
        opanp.setParameter((ParameterI) ops);
      } else {
        if (ops.getValue()!=null && ops.getValue().length()>0) {
          opanp.selectOption(ops, ops.getValue());
        }
      }
    }
    typeList.setSelectedValue(current.getURLtokenPrefix(), true);
    type_SelectionChangedActionPerformed(null);
  }
  private void updateCurrentType()
  {
    if (typeList.getSelectedValue()!=null) {
    InputType newType = getTypeFor((String)typeList.getSelectedValue());
    if (newType!=null) {
      newType.token = tok.getText().trim();
      try {
        newType.configureFromArgumentI(opanps.get(newType.getURLtokenPrefix()).getCurrentSettings());
        current=newType;
        updated=true;
      } catch (InvalidArgumentException ex) {
        System.err.println("IMPLEMENTATION ERROR: Invalid argument for type : "+typeList.getSelectedValue()+"\n");
        ex.printStackTrace();
      }
    }
    }
    
  }
  private void initTypeLists()
  {
    ArrayList<String> types=new ArrayList<String>();
    // populate type list
    for (Class type : RestServiceDescription.getInputTypes())
    {

      InputType jtype = null;
      try
      {
        JPanel inopts = new JPanel(new MigLayout());
        ArrayList<JPanel> opts = new ArrayList<JPanel>(), prms = new ArrayList<JPanel>();
        jtype = (InputType) (type.getConstructor().newInstance(null));
        typeclass.put(jtype.getURLtokenPrefix(), type);
        // and populate parameters from this type
        OptsAndParamsPage opanp = new OptsAndParamsPage(this,true);
        opanps.put(jtype.getURLtokenPrefix(),opanp);
        for (OptionI opt : jtype.getOptions())
        {

          if (opt instanceof ParameterI)
          {
            prms.add(opanp.addParameter((ParameterI) opt));
          }
          else
          {
            opts.add(opanp.addOption(opt));
          }
        }
        // then tag the params at the end of the options.
        for (JPanel pnl : prms)
        {
          opts.add(pnl);
        }
        typeopts.put(jtype.getURLtokenPrefix(), opts);
        types.add(jtype.getURLtokenPrefix());
      } catch (Throwable x)
      {
        System.err
                .println("Unexpected exception when instantiating rest input type.");
        x.printStackTrace();
      }
    }
    typeList.setListData(types.toArray());
    
  }

  @Override
  protected void type_SelectionChangedActionPerformed(ListSelectionEvent e)
  {
    options.removeAll();
    String typen = (String) typeList.getSelectedValue();
    if (typeopts.get(typen) != null)
    {
      for (JPanel opt : typeopts.get(typen))
      {
        opt.setOpaque(true);
        options.add(opt,"wrap");
      }
      options.invalidate();
      optionsPanel.setVisible(true);
    }
    else
    {
      optionsPanel.setVisible(false);
    }
    dpane.revalidate();
    updateCurrentType();
  }

  boolean updated=false;
  public boolean wasUpdated()
  {
    return updated;
  }

  @Override
  public void refreshParamLayout()
  {
    options.invalidate();
    dpane.revalidate();
  }

  @Override
  protected void tokChanged_actionPerformed()
  {
    if (tok.getText().trim().length()>0)
    {
      if (current!=null)
      {
        current.token = tok.getText().trim();
        updated = true; 
      } 
    }
  }
  @Override
  public void argSetModified(Object modifiedElement, boolean b)
  {
    updated = updated | b;
    if (updated)
    {
      updateCurrentType();
    }
  }

}