// **********************************************************************
//
// Copyright (c) 2003-2010 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.Component;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;

import IceGrid.*;
import IceGridGUI.*;

class ServiceTemplate extends Communicator
{
    static public TemplateDescriptor
    copyDescriptor(TemplateDescriptor templateDescriptor)
    {
        TemplateDescriptor copy = (TemplateDescriptor)templateDescriptor.clone();
        copy.descriptor = PlainService.copyDescriptor((ServiceDescriptor)copy.descriptor);
        return copy;
    }

    public Component getTreeCellRendererComponent(
        JTree tree,
        Object value,
        boolean sel,
        boolean expanded,
        boolean leaf,
        int row,
        boolean hasFocus)
    {
        if(_cellRenderer == null)
        {
            _cellRenderer = new DefaultTreeCellRenderer();
            _cellRenderer.setOpenIcon(Utils.getIcon("/icons/16x16/service_template.png"));
            _cellRenderer.setClosedIcon(Utils.getIcon("/icons/16x16/service_template.png"));
        }

        return _cellRenderer.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus);
    }

    //
    // Actions
    //
    public boolean[] getAvailableActions()
    {
        boolean[] actions = new boolean[ACTION_COUNT];

        if(((TreeNode)_parent).getAvailableActions()[PASTE])
        {
            actions[PASTE] = true;
        }
        else
        {
            Object clipboard = getCoordinator().getClipboard();
            actions[PASTE] = clipboard != null &&
                (clipboard instanceof Adapter.AdapterCopy
                 || clipboard instanceof DbEnvDescriptor);
        }

        actions[DELETE] = true;

        if(!_ephemeral)
        {
            actions[COPY] = true;
            actions[NEW_ADAPTER] = true;
            actions[NEW_DBENV] = true;
        }

        return actions;
    }

    public void copy()
    {
        getCoordinator().setClipboard(copyDescriptor(_templateDescriptor));
        getCoordinator().getActionsForMenu().get(PASTE).setEnabled(true);
    }

    public JPopupMenu getPopupMenu()
    {
        ApplicationActions actions = getCoordinator().getActionsForPopup();
        if(_popup == null)
        {
            _popup = new JPopupMenu();
            _popup.add(actions.get(NEW_ADAPTER));
            _popup.add(actions.get(NEW_DBENV));
        }
        actions.setTarget(this);
        return _popup;
    }

    public Editor getEditor()
    {
        if(_editor == null)
        {
            _editor = (ServiceTemplateEditor)getRoot().getEditor(ServiceTemplateEditor.class, this);
        }
        _editor.show(this);
        return _editor;
    }

    protected Editor createEditor()
    {
        return new ServiceTemplateEditor();
    }

    ServiceTemplate(boolean brandNew, ServiceTemplates parent, String name, TemplateDescriptor descriptor)
        throws UpdateFailedException
    {
        super(parent, name);
        _editable = new Editable(brandNew);
        _ephemeral = false;
        rebuild(descriptor);
    }

    ServiceTemplate(ServiceTemplates parent, String name, TemplateDescriptor descriptor)
    {
        super(parent, name);
        _ephemeral = true;
        _editable = null;
        _templateDescriptor = descriptor;
    }

    void write(XMLWriter writer)
        throws java.io.IOException
    {
        if(!_ephemeral)
        {
            java.util.List<String[]> attributes = new java.util.LinkedList<String[]>();
            attributes.add(createAttribute("id", _id));
            writer.writeStartTag("service-template", attributes);
            writeParameters(writer, _templateDescriptor.parameters, _templateDescriptor.parameterDefaults);

            ServiceDescriptor descriptor = (ServiceDescriptor)_templateDescriptor.descriptor;

            writer.writeStartTag("service", PlainService.createAttributes(descriptor));

            if(descriptor.description.length() > 0)
            {
                writer.writeElement("description", descriptor.description);
            }

            writePropertySet(writer, descriptor.propertySet, descriptor.adapters, descriptor.logs);
            writeLogs(writer, descriptor.logs, descriptor.propertySet.properties);
            _adapters.write(writer, descriptor.propertySet.properties);
            _dbEnvs.write(writer);
            writer.writeEndTag("service");
            writer.writeEndTag("service-template");
        }
    }

    void rebuild(TemplateDescriptor descriptor)
        throws UpdateFailedException
    {
        _templateDescriptor = descriptor;

        _adapters.clear();
        _dbEnvs.clear();

        if(!_ephemeral)
        {
            _adapters.init(_templateDescriptor.descriptor.adapters);
            _dbEnvs.init(_templateDescriptor.descriptor.dbEnvs);
        }
    }

    void commit()
    {
        _editable.commit();
    }

    public Object getDescriptor()
    {
        return _templateDescriptor;
    }

    CommunicatorDescriptor getCommunicatorDescriptor()
    {
        return _templateDescriptor.descriptor;
    }

    public boolean isEphemeral()
    {
        return _ephemeral;
    }

    public void destroy()
    {
        ServiceTemplates serviceTemplates = (ServiceTemplates)_parent;

        if(_ephemeral)
        {
            serviceTemplates.removeChild(this);
        }
        else
        {
            serviceTemplates.removeDescriptor(_id);
            getRoot().removeServiceInstances(_id);
            serviceTemplates.removeChild(this);
            serviceTemplates.getEditable().removeElement(_id, _editable, ServiceTemplate.class);
            getRoot().updated();
        }
    }

    java.util.List<? extends TemplateInstance> findInstances()
    {
        return getRoot().findServiceInstances(_id);
    }

    Editable getEditable()
    {
        return _editable;
    }

    Editable getEnclosingEditable()
    {
        return _editable;
    }

    public Object saveDescriptor()
    {
        //
        // Shallow copy
        //
        TemplateDescriptor clone = (TemplateDescriptor)_templateDescriptor.clone();
        clone.descriptor = (ServiceDescriptor)_templateDescriptor.descriptor.clone();
        return clone;
    }

    public void restoreDescriptor(Object savedDescriptor)
    {
        TemplateDescriptor clone = (TemplateDescriptor)savedDescriptor;
        //
        // Keep the same object
        //
        _templateDescriptor.parameters = clone.parameters;

        ServiceDescriptor sd = (ServiceDescriptor)_templateDescriptor.descriptor;
        ServiceDescriptor csd = (ServiceDescriptor)clone.descriptor;

        sd.propertySet = csd.propertySet;
        sd.description = csd.description;
        sd.name = csd.name;
        sd.entry = csd.entry;
    }

    private TemplateDescriptor _templateDescriptor;
    private final boolean _ephemeral;
    private Editable _editable;
    private ServiceTemplateEditor _editor;

    static private DefaultTreeCellRenderer _cellRenderer;
    static private JPopupMenu _popup;
}