/*
 *
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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 org.apache.flex.compiler.internal.tree.mxml;

import org.apache.flex.compiler.constants.IASLanguageConstants;
import org.apache.flex.compiler.internal.projects.FlexProject;
import org.apache.flex.compiler.mxml.IMXMLTagData;
import org.apache.flex.compiler.tree.ASTNodeID;
import org.apache.flex.compiler.tree.as.IASNode;
import org.apache.flex.compiler.tree.mxml.IMXMLHTTPServiceRequestPropertyNode;
import org.apache.flex.compiler.tree.mxml.IMXMLNode;

/**
 * AST node for {@code <s:request>} tag under a {@code <s:HTTPService>} tag.
 */
class MXMLHTTPServiceRequestPropertyNode extends MXMLPropertySpecifierNode implements IMXMLHTTPServiceRequestPropertyNode
{

    /**
     * Create node for {@code <s:request>} tag.
     * 
     * @param parent Parent node.
     */
    MXMLHTTPServiceRequestPropertyNode(MXMLHTTPServiceNode parent)
    {
        super(parent);
        objectNode = new MXMLObjectNode(this);
    }

    private final MXMLObjectNode objectNode;

    @Override
    public ASTNodeID getNodeID()
    {
        return ASTNodeID.MXMLHTTPServiceRequestID;
    }

    /**
     * {@code <s:request>} node only have one "instance" node of type "Object".
     */
    @Override
    public int getChildCount()
    {
        return objectNode != null ? 1 : 0;
    }

    /**
     * {@code <s:request>} node only have one "instance" node of type "Object".
     */
    @Override
    public IASNode getChild(int i)
    {
        if (i != 0)
            throw new IndexOutOfBoundsException("Request node only have one child node.");
        return objectNode;
    }

    /**
     * Add child tags as dynamic properties to the "object" node.
     */
    @Override
    protected void processChildTag(MXMLTreeBuilder builder, IMXMLTagData tag, IMXMLTagData childTag, MXMLNodeInfo info)
    {
        final MXMLPropertySpecifierNode specifierNode = new MXMLPropertySpecifierNode(this);
        specifierNode.setDynamicName(childTag.getShortName());
        specifierNode.initializeFromTag(builder, childTag);
        specifierNode.setParent(objectNode);
        info.addChildNode(specifierNode);
    }

    /**
     * Synthesize an "instance" node of type "Object" to own all the request
     * fields.
     */
    @Override
    protected void initializationComplete(MXMLTreeBuilder builder, IMXMLTagData tag, MXMLNodeInfo info)
    {
        initializeObjectNode(builder, tag, info);
        setInstanceNode(objectNode);
        super.initializationComplete(builder, tag, info);
    }

    /**
     * Span "object" node's offset to the parent "request" node. Make the
     * dynamic request properties children of the "object" node.
     */
    private void initializeObjectNode(MXMLTreeBuilder builder, IMXMLTagData tag, MXMLNodeInfo info)
    {
        final FlexProject project = builder.getProject();
        objectNode.setClassReference(project, IASLanguageConstants.Object);
        objectNode.initializeFromTag(builder, tag);
        objectNode.initializationComplete(builder, tag, createNodeInfo(builder));
        objectNode.setChildren(info.getChildNodeList().toArray(new IMXMLNode[0]));
    }
}