/*******************************************************************************
 * Copyright (c) 2015 Red Hat, Inc. Distributed under license by Red Hat, Inc.
 * All rights reserved. This program is made available under the terms of the
 * Eclipse Public License v1.0 which accompanies this distribution, and is
 * available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: Red Hat, Inc.
 ******************************************************************************/

package com.openshift.internal.restclient.model;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;

import org.apache.commons.lang.StringUtils;
import org.jboss.dmr.ModelNode;

import com.openshift.restclient.IClient;
import com.openshift.restclient.IResourceFactory;
import com.openshift.restclient.model.IList;
import com.openshift.restclient.model.IResource;

public class List extends KubernetesResource implements IList {

    private static final String ITEMS = "items";

    private String kind;
    private Collection<IResource> items;

    public List(ModelNode node, IClient client, Map<String, String[]> propertyKeys) {
        super(node, client, propertyKeys);
        String listKind = asString(KIND);
        if (StringUtils.isNotBlank(listKind)) {
            kind = listKind.substring(0, listKind.length() - "List".length());
        }
    }

    @Override
    public Collection<IResource> getItems() {
        if (items == null) {
            ModelNode listNode = get(ITEMS);
            if (listNode.isDefined()) {
                Collection<ModelNode> nodes = listNode.asList();
                items = new ArrayList<>(nodes.size());
                IResourceFactory factory = getClient().getResourceFactory();
                if (factory != null) {
                    for (ModelNode node : nodes) {
                        if (kind != null && !node.get(KIND).isDefined()) {
                            set(node, KIND, kind);
                        }
                        if (!node.get(APIVERSION).isDefined()) {
                            set(node, APIVERSION, getApiVersion());
                        }
                        IResource resource = factory.create(node.toJSONString(true));
                        items.add(resource);
                    }
                }
            } else {
                items = Collections.emptyList();
            }
        }
        return Collections.unmodifiableCollection(items);
    }

    @Override
    public void addAll(Collection<IResource> items) {
        if (this.items == null) {
            this.items = new ArrayList<>();
        }
        ModelNode itemNode = get(ITEMS);
        for (IResource resource : items) {
            itemNode.add(ModelNode.fromJSONString(resource.toString()));
            this.items.add(resource);
        }
    }

}
