/*
 * Copyright 2013-2015 Skynav, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY SKYNAV, INC. AND ITS 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 SKYNAV, INC. OR ITS CONTRIBUTORS 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 com.skynav.ttv.verifier.ttml.style;

import java.util.List;

import javax.xml.namespace.QName;

import org.w3c.dom.Node;

import com.skynav.ttv.model.Model;
import com.skynav.ttv.util.Location;
import com.skynav.ttv.verifier.StyleValueVerifier;
import com.skynav.ttv.verifier.VerifierContext;
import com.skynav.ttv.verifier.util.Regions;

public class RegionAttributeVerifier implements StyleValueVerifier {

    public boolean verify(Object value, Location location, VerifierContext context) {
        Model model = context.getModel();
        QName name = location.getAttributeName();
        QName targetName = model.getIdReferenceTargetName(name);
        Class<?> targetClass = model.getIdReferenceTargetClass(name);
        List<List<QName>> ancestors = model.getIdReferencePermissibleAncestors(name);
        Object region = value;
        Node node = context.getXMLNode(region);
        if (Regions.isRegionReference(node, region, location, context, targetClass, ancestors))
            return true;
        else {
            Regions.badRegionReference(node, region, location, context, name, targetName, targetClass, ancestors);
            return false;
        }
    }

}