/*
 * Copyright (c) 2011, grossmann
 * 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 jo-widgets.org 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 jo-widgets.org 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.jowidgets.workbench.toolkit.impl;

import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

import org.jowidgets.api.model.IListModelListener;
import org.jowidgets.common.image.IImageConstant;
import org.jowidgets.util.Assert;
import org.jowidgets.workbench.toolkit.api.IComponentNodeContainerModel;
import org.jowidgets.workbench.toolkit.api.IComponentNodeModel;
import org.jowidgets.workbench.toolkit.api.IComponentNodeModelBuilder;
import org.jowidgets.workbench.toolkit.api.WorkbenchToolkit;

class ComponentNodeContainerModel implements IComponentNodeContainerModel {

    private final ListModelObservable listModelObservable;
    private final List<IComponentNodeModel> children;
    private final String id;

    ComponentNodeContainerModel(final String id, final List<IComponentNodeModel> children) {
        Assert.paramNotEmpty(id, "id");
        this.listModelObservable = new ListModelObservable();
        this.children = new LinkedList<IComponentNodeModel>();
        this.id = id;

        //Add the children that way to ensure that the parents will be set correctly
        for (final IComponentNodeModel childModel : children) {
            addChild(childModel);
        }
    }

    @Override
    public String getId() {
        return id;
    }

    @Override
    public void addListModelListener(final IListModelListener listener) {
        listModelObservable.addListModelListener(listener);
    }

    @Override
    public void removeListModelListener(final IListModelListener listener) {
        listModelObservable.removeListModelListener(listener);
    }

    @Override
    public IComponentNodeContainerModel getParentContainer() {
        return null;
    }

    @Override
    public List<IComponentNodeModel> getChildren() {
        return Collections.unmodifiableList(children);
    }

    @Override
    public int getChildrenCount() {
        return children.size();
    }

    @Override
    public IComponentNodeModel addChild(final int index, final IComponentNodeModel childModel) {
        Assert.paramNotNull(childModel, "childModel");
        if (childModel.getParentContainer() != null) {
            throw new IllegalArgumentException("The given model was alreay added to another container. "
                + "To add this model to this container, it must be removed from its current container first.");
        }
        children.add(index, childModel);
        childModel.setParentContainer(this);

        listModelObservable.fireAfterChildAdded(index);
        return childModel;
    }

    @Override
    public void remove(final int index) {
        if (children.size() < index) {
            listModelObservable.fireBeforeChildRemove(index);
        }
        final IComponentNodeModel child = children.remove(index);
        if (child != null) {
            child.setParentContainer(null);
            listModelObservable.fireAfterChildRemoved(index);
        }
    }

    @Override
    public IComponentNodeModel addChild(final IComponentNodeModel childModel) {
        return addChild(children.size(), childModel);
    }

    @Override
    public IComponentNodeModel addChild(final IComponentNodeModelBuilder childModelBuilder) {
        return addChild(children.size(), childModelBuilder);
    }

    @Override
    public IComponentNodeModel addChild(final int index, final IComponentNodeModelBuilder childModelBuilder) {
        Assert.paramNotNull(childModelBuilder, "childModelBuilder");
        return addChild(index, childModelBuilder.build());
    }

    @Override
    public IComponentNodeModel addChild(final String id, final String label, final String tooltip, final IImageConstant icon) {
        return addChild(componentNodeBuilder().setId(id).setLabel(label).setTooltip(tooltip).setIcon(icon));
    }

    @Override
    public IComponentNodeModel addChild(final String id, final String label, final IImageConstant icon) {
        return addChild(componentNodeBuilder().setId(id).setLabel(label).setIcon(icon));
    }

    @Override
    public IComponentNodeModel addChild(final String id, final String label, final String tooltip) {
        return addChild(componentNodeBuilder().setId(id).setLabel(label).setTooltip(tooltip));
    }

    @Override
    public IComponentNodeModel addChild(final String id, final String label) {
        return addChild(componentNodeBuilder().setId(id).setLabel(label));
    }

    @Override
    public IComponentNodeModel addChild(final String id) {
        return addChild(componentNodeBuilder().setId(id));
    }

    @Override
    public void remove(final IComponentNodeModel childModel) {
        final int index = children.indexOf(childModel);
        if (index != -1) {
            remove(index);
        }
    }

    @Override
    public void removeAll() {
        final int childrenCount = children.size();
        for (int i = 0; i < childrenCount; i++) {
            remove(0);
        }
    }

    private IComponentNodeModelBuilder componentNodeBuilder() {
        return WorkbenchToolkit.getWorkbenchPartBuilderFactory().componentNode();
    }

}