/*******************************************************************************
 *  Copyright (c) 2012-2014 SAP SE.
 *  All rights reserved. This program and the accompanying materials
 *  are 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:
 *  SAP SE - initial API and implementation and/or initial documentation
 *
 *******************************************************************************/
package org.eclipse.ogee.client.parser.impl;

import org.eclipse.ogee.client.model.atom.ODataPropertyImpl;
import org.eclipse.ogee.client.model.generic.Arrays;
import org.eclipse.ogee.client.model.generic.ComplexTypeCollection;
import org.eclipse.ogee.client.model.generic.ODataProperty;
import org.xml.sax.Attributes;

/**
 * Auxiliary class for parsing a complex type collection. Not to be used
 * explicitly.
 * 
 */
public class CollectionComplexTagFactory implements TagFactory {
	private ComplexTypeCollection root;

	public CollectionComplexTagFactory(String serviceOperation) {
		super();
		root = new ComplexTypeCollection(serviceOperation);
	}

	public TagObject createTagObject(String tagName, Attributes attr) {
		TagObject result = new TagObject();
		result.setTag(tagName);

		int attrCount = attr.getLength();

		if (tagName.equalsIgnoreCase(this.root.getQualifiedName())) {
			if (attrCount > 0) {
				String attrName, attrValue;
				for (int i = 0; i < attrCount; i++) {
					attrName = attr.getQName(i);
					attrValue = attr.getValue(i);

					this.root.setAttribute(attrName, attrValue);
				}
			}
			result.setObject(this.root);
		} else if (tagName.equalsIgnoreCase("d:element")) {
			ODataPropertyImpl element = new ODataPropertyImpl();
			if (attrCount > 0) {
				String attrName, attrValue;
				for (int i = 0; i < attrCount; i++) {
					attrName = attr.getQName(i);
					attrValue = attr.getValue(i);
					if (attrName.equalsIgnoreCase(M_TYPE))
						element.setType(attr.getValue(i));
					else
						element.setAttribute(attrName, attrValue);
				}
			}
			result.setObject(element);
		} else if (tagName.startsWith(D)) {
			ODataPropertyImpl valueObject = new ODataPropertyImpl();
			if (attrCount > 0) {
				String attrName, attrValue;
				for (int i = 0; i < attrCount; i++) {
					attrName = attr.getQName(i);
					attrValue = attr.getValue(i);
					if (attrName.equalsIgnoreCase(M_TYPE))
						valueObject.setType(attrValue);
					else
						valueObject.setAttribute(attrName, attrValue);
				}
			}
			result.setObject(valueObject);
		}

		return result;
	}

	public void setValue(TagObject tagObject, String value) {
		String tagName = tagObject.getTag();
		if (!tagName.equalsIgnoreCase(this.root.getName())) {
			if (tagName.startsWith(D)
					&& !tagName.equalsIgnoreCase(this.root.getQualifiedName())) {
				ODataPropertyImpl valueObject = (ODataPropertyImpl) tagObject
						.getObject();
				valueObject.setValue(value);
				valueObject.setName(tagName);
			} else if (tagObject.getObject() == null && value != null) {
				tagObject.setObject(value);
			}
		}

	}

	public void addChild(TagObject parent, TagObject tagObject) {
		String tag = tagObject.getTag();
		String parentTag = parent.getTag();

		if (parentTag.equalsIgnoreCase(this.root.getQualifiedName())) {
			this.root = (ComplexTypeCollection) parent.getObject();

			if (tag.equalsIgnoreCase("d:element")) {
				ODataProperty[] elements = (ODataProperty[]) this.root
						.getElements();
				if (elements == null) {
					this.root.setElements(new ODataPropertyImpl[0]);
					elements = (ODataPropertyImpl[]) this.root.getElements();
				}

				ODataPropertyImpl element = (ODataPropertyImpl) tagObject
						.getObject();
				Arrays.add(this.root, elements, element);

			}

		} else if (parentTag.equalsIgnoreCase("d:element")) {
			ODataPropertyImpl element = (ODataPropertyImpl) parent.getObject();

			if (tag.startsWith(D)) {
				ODataPropertyImpl dataValue = (ODataPropertyImpl) tagObject
						.getObject();
				element.putChildDataValue(dataValue);
			}
		} else if (!parentTag.equalsIgnoreCase(this.root.getQualifiedName())) {
			ODataPropertyImpl parentDataValue = (ODataPropertyImpl) parent
					.getObject();
			if (tag.startsWith(D)) {
				ODataPropertyImpl dataValue = (ODataPropertyImpl) tagObject
						.getObject();
				parentDataValue.putChildDataValue(dataValue);
			}
		}

	}

}