/*
 * Copyright (c) 2003, KNOPFLERFISH project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials
 *   provided with the distribution.
 *
 * - Neither the name of the KNOPFLERFISH project nor the names of its
 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.knopflerfish.bundle.desktop.cm;

import org.osgi.framework.*;
import org.osgi.service.cm.*;
import org.osgi.util.tracker.*;
import java.util.*;
import org.knopflerfish.service.desktop.*;
import org.knopflerfish.util.metatype.*;
import org.osgi.service.metatype.*;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class JCMProp extends JPanel {
  AttributeDefinition ad;

  JComponent comp = null;
  JLabel     err;

  public JCMProp(AttributeDefinition ad, Dictionary props) {
    super(new BorderLayout());

    this.ad = ad;
    
    comp = null;
    err  = new JLabel();
    err.setForeground(Color.red);

    int card     = ad.getCardinality();
    int maxItems = Integer.MAX_VALUE;

    if(card == Integer.MAX_VALUE ||
       card == Integer.MIN_VALUE) {
      maxItems = Integer.MAX_VALUE;
    } else if(card < 0) {
      maxItems = -card;
    } else {
      maxItems = card;
    }
    
    if(card < 0) {
      comp = new JVector(ad, 
			 (Vector)props.get(ad.getID()), 
			 "Vector items",
			 maxItems);
    } else if(card > 0) {
      comp = new JVector(ad, 
			 Util.toVector((Object[])props.get(ad.getID())), 
			 "Array items",
			 maxItems);
    } else {
      if(ad.getOptionValues() != null) {
	if(ad.getOptionLabels() != null) {
	  comp = new JComboBox(ad.getOptionLabels());
	} else {
	  comp = new JComboBox(ad.getOptionValues());
	}
      } else {
	switch(ad.getType()) {
	case AttributeDefinition.STRING:
	  comp = new JTextField();
	  break;
	case AttributeDefinition.BOOLEAN:
	  comp = new JCheckBox();
	  break;
	case AttributeDefinition.INTEGER:
	case AttributeDefinition.SHORT:
	case AttributeDefinition.LONG:
	case AttributeDefinition.DOUBLE:
	case AttributeDefinition.FLOAT:
	  comp = new JNumber(ad);
	  break;
	default:
	  comp = new JTextField();
	}
      }
    }
    
    add(comp, BorderLayout.CENTER);
    add(err,  BorderLayout.SOUTH);
    
    Object obj = props.get(ad.getID());

    //    System.out.println(ad.getID() + "=" + obj + " " + (obj != null ? obj.getClass().getName() : "null"));
    if(ad.getCardinality() == 0) {
      setValue(AD.toString(obj != null ? obj : ad.getDefaultValue()));
    } else {
      // done in constructor for JVector
    } 
  }
  
  
  void setErr(String s) {
    err.setText(s);
    invalidate();
    revalidate();
    repaint();
  }

  public void setValue(Object obj) {
    if(comp instanceof JVector) {
      JVector jv = (JVector)comp;
      jv.setValue(obj);
    } else if(comp instanceof JNumber) {
      ((JNumber)comp).setValue(AD.parse(obj.toString(), 0, ad.getType()));
    } else {
      String s = AD.toString(obj);
      if(comp instanceof JTextField) {
	JTextField text = (JTextField)comp;
	text.setText(s);
      } else if(comp instanceof JCheckBox) {
	JCheckBox cb = (JCheckBox)comp;
	cb.setSelected("true".equals(s));
      } else if(comp instanceof JComboBox) {
	JComboBox cb = (JComboBox)comp;
	String[] opts = ad.getOptionValues();
	for(int i = 0; i < opts.length; i++) {
	  if(opts[i].equals(obj)) {
	    cb.setSelectedIndex(i);
	    return;
	  }
	}
	throw new IllegalArgumentException("Unknown option value " + obj);
      }
    }
  }

  public Object getValue() { 
    String s = null;
    if(comp instanceof JVector) {
      JVector jv = (JVector)comp;
      if(ad.getCardinality() < 0) {
	s  = AD.toString(jv.getVector());
      } else {
	s  = AD.toString(jv.getArray());
      }
    } else if(comp instanceof JNumber) {
      JNumber number = (JNumber)comp;
      s = number.getValue().toString();
    } else if(comp instanceof JTextField) {
      JTextField text = (JTextField)comp;
      s = text.getText();
    } else if(comp instanceof JCheckBox) {
      JCheckBox cb = (JCheckBox)comp;
      s = "" + cb.isSelected();
    } else if(comp instanceof JComboBox) {
      JComboBox cb = (JComboBox)comp;
      s = ad.getOptionValues()[cb.getSelectedIndex()];
    }

    //    System.out.println("getValue " + ad + ", s=" + s);
    
    String msg = ad.validate(s);
    
    //    System.out.println("validate msg=" + msg);
    
    if(msg != null && !"".equals(msg)) {
      throw new IllegalArgumentException(s + ": " + msg);
    }
      return AD.parse(s, ad.getCardinality(), ad.getType());
  }
}