// **********************************************************************
//
// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
package IceGridGUI.Application;

import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JScrollPane;
import javax.swing.JTextField;

import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;

import com.jgoodies.forms.builder.DefaultFormBuilder;
import com.jgoodies.forms.layout.CellConstraints;

import IceGrid.*;
import IceGridGUI.*;

class ServerInstanceEditor extends AbstractServerEditor
{
    protected void writeDescriptor()
    {
	ServerInstanceDescriptor descriptor = getDescriptor();
	ServerTemplate t = (ServerTemplate)_template.getSelectedItem();
	
	descriptor.template = t.getId();
	descriptor.parameterValues = _parameters.getValues();

	descriptor.propertySet.references = 
	    (String[])_propertySets.getList().toArray(new String[0]);
	descriptor.propertySet.properties = _properties.getProperties();

	((ServerInstance)_target).isIceBox(
	    ((TemplateDescriptor)t.getDescriptor()).descriptor instanceof IceBoxDescriptor);
    }
    
    protected boolean isSimpleUpdate()
    {
	ServerInstanceDescriptor descriptor = getDescriptor();
	ServerTemplate t = (ServerTemplate)_template.getSelectedItem();

	return descriptor.template.equals(t.getId())
	     && descriptor.parameterValues.equals(_parameters.getValues());
    }

    ServerInstanceEditor()
    {	
	_template.setToolTipText("Server template");
	
	//
	// Template
	//
	Action gotoTemplate = new AbstractAction(
	    "", Utils.getIcon("/icons/16x16/goto.png"))
	    {
		public void actionPerformed(ActionEvent e) 
		{
		    TreeNode t = (TreeNode)_template.getSelectedItem();
		    if(t != null)
		    {
			t.getRoot().setSelectedNode(t);
		    }
		}
	    };
	gotoTemplate.putValue(Action.SHORT_DESCRIPTION, 
			      "Goto this server template");
	_templateButton = new JButton(gotoTemplate);

	_parameters = new ParameterValuesField(this);

	_propertySets.getDocument().addDocumentListener(_updateListener);
	_propertySets.setToolTipText("Property Set References");
	
	_properties = new PropertiesField(this);
    }

    ServerInstanceDescriptor getDescriptor()
    {
	return (ServerInstanceDescriptor)_target.getDescriptor();
    }

    //
    // From Editor:
    //

    Utils.Resolver getDetailResolver()
    {
	if(_target.getCoordinator().substitute())
	{
	    return _target.getResolver();
	}
	else
	{
	    return null;
	}
    }

    protected void appendProperties(DefaultFormBuilder builder)
    { 
	builder.append("Template", _template);
	builder.append(_templateButton);
	builder.nextLine();
	
	builder.append("Parameters");
	builder.nextLine();
	builder.append("");
	builder.nextLine();
	builder.append("");

	builder.nextLine();
	builder.append("");

	builder.nextRow(-6);
	JScrollPane scrollPane = new JScrollPane(_parameters);
	CellConstraints cc = new CellConstraints();
	builder.add(scrollPane, 
		    cc.xywh(builder.getColumn(), builder.getRow(), 3, 7));
	builder.nextRow(6);
	builder.nextLine();
	
	builder.append("Property Sets");
	builder.append(_propertySets, 3);
	builder.nextLine();

	builder.append("Properties");
	builder.nextLine();
	builder.append("");
	builder.nextLine();
	builder.append("");

	builder.nextLine();
	builder.append("");

	builder.nextRow(-6);
	scrollPane = new JScrollPane(_properties);
	builder.add(scrollPane, 
		    cc.xywh(builder.getColumn(), builder.getRow(), 3, 7));
	builder.nextRow(6);
	builder.nextLine();
    }

    void show(ServerInstance server)
    {
	detectUpdates(false);
	_target = server;

	ServerInstanceDescriptor descriptor = getDescriptor();
	Root root = server.getRoot();
	boolean isEditable = !root.getCoordinator().substitute();

	Utils.Resolver resolver = isEditable ? null :
	    ((Node)_target.getParent()).getResolver();

	//
	// Need to make control enabled before changing it
	//
	_template.setEnabled(true);

	ServerTemplates serverTemplates = root.getServerTemplates();
	_template.setModel(serverTemplates.createComboBoxModel());

	ServerTemplate t = (ServerTemplate)
	    serverTemplates.findChild(descriptor.template);
	assert t != null;
	_template.setSelectedItem(t);
	
	ListDataListener templateListener = new ListDataListener()
	    {
		public void contentsChanged(ListDataEvent e)
		{
		    updated();
		    
		    ServerTemplate t = 
			(ServerTemplate)_template.getModel().getSelectedItem();
		    
		    TemplateDescriptor td = (TemplateDescriptor)t.getDescriptor();
		    
		    //
		    // Replace parameters but keep existing values
		    //
		    _parameters.set(td.parameters,
				    makeParameterValues(_parameters.getValues(), td.parameters),
				    td.parameterDefaults, null);
		}

		public void intervalAdded(ListDataEvent e)
		{}
         
		public void intervalRemoved(ListDataEvent e)
		{}
	    };

	_template.getModel().addListDataListener(templateListener);
	_template.setEnabled(isEditable);
	
	TemplateDescriptor td = (TemplateDescriptor)t.getDescriptor();
	_parameters.set(td.parameters, descriptor.parameterValues, 
			td.parameterDefaults, resolver);

	_propertySets.setList(java.util.Arrays.asList(descriptor.propertySet.references),
			      getDetailResolver());
	_propertySets.setEditable(isEditable);

	_properties.setProperties(descriptor.propertySet.properties, null, 
				  getDetailResolver(), isEditable);

	_applyButton.setEnabled(server.isEphemeral());
	_discardButton.setEnabled(server.isEphemeral());	  
	detectUpdates(true);
    }

    private JComboBox _template = new JComboBox();
    private JButton _templateButton;
    private ParameterValuesField _parameters;

    private ListTextField _propertySets = new ListTextField(20);
    private PropertiesField _properties;
}