/**
 *  Copyright 2011 Ryszard Wiśniewski <brut.alll@gmail.com>
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package brut.androlib.res.data.value;

import brut.androlib.AndrolibException;
import brut.androlib.res.data.ResResource;
import brut.util.Duo;
import java.io.IOException;
import org.xmlpull.v1.XmlSerializer;

/**
 * @author Ryszard Wiśniewski <brut.alll@gmail.com>
 */
public class ResArrayValue extends ResBagValue implements ResXmlSerializable {
    ResArrayValue(ResReferenceValue parent,
            Duo<Integer, ResScalarValue>[] items) {
        super(parent);

        mItems = new ResScalarValue[items.length];
        for (int i = 0; i < items.length; i++) {
            mItems[i] = items[i].m2;
        }
    }

    public ResArrayValue(ResReferenceValue parent, ResScalarValue[] items) {
        super(parent);
        mItems = items;
    }

    @Override
    public void serializeToXml(XmlSerializer serializer, ResResource res)
            throws IOException, AndrolibException {
        String type = getType();
        type = (type == null ? "" : type + "-") + "array";

        serializer.startTag(null, type);
        serializer.attribute(null, "name", res.getResSpec().getName());
        for (int i = 0; i < mItems.length; i++) {
            serializer.startTag(null, "item");
            serializer.text(mItems[i].toResXmlFormat());
            serializer.endTag(null, "item");
        }
        serializer.endTag(null, type);
    }

    public String getType() {
        if (mItems.length == 0) {
            return null;
        }
        String type = mItems[0].getType();
        if (! "string".equals(type) && ! "integer".equals(type)) {
            return null;
        }
        for (int i = 1; i < mItems.length; i++) {
            if (! type.equals(mItems[i].getType())) {
                return null;
            }
        }
        return type;
    }

    private final ResScalarValue[] mItems;


    public static final int BAG_KEY_ARRAY_START = 0x02000000;
}
