/*
 * Copyright (c) 2016 Cisco Systems, Inc. and others.  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
 */

package org.opendaylight.mdsal.binding2.java.api.generator;

import com.google.common.annotations.Beta;
import org.opendaylight.mdsal.binding2.java.api.generator.renderers.BuilderRenderer;
import org.opendaylight.mdsal.binding.javav2.model.api.CodeGenerator;
import org.opendaylight.mdsal.binding.javav2.model.api.GeneratedTransferObject;
import org.opendaylight.mdsal.binding.javav2.model.api.GeneratedType;
import org.opendaylight.mdsal.binding.javav2.model.api.Type;
import org.opendaylight.mdsal.binding.javav2.model.api.UnitName;
import org.opendaylight.mdsal.binding.javav2.spec.structural.Augmentable;
import org.opendaylight.mdsal.binding.javav2.spec.structural.Augmentation;
import org.opendaylight.yangtools.concepts.Identifier;

/**
 * Transformer of the data from the virtual form to JAVA programming language.
 * The result source code represent java class. For generation of the source
 * code is used the template written in Twirl (Scala based) language.
 */
@Beta
public final class BuilderGenerator implements CodeGenerator {

    @Override
    public String generate(Type type) {
        if ((type instanceof GeneratedType) && !(type instanceof GeneratedTransferObject)) {
            final GeneratedType genType = (GeneratedType) type;
            return new BuilderRenderer(genType).generateTemplate();
        } else {
            return "";
        }
    }

    @Override
    public boolean isAcceptable(Type type) {
        if (type instanceof GeneratedType && !(type instanceof GeneratedTransferObject)) {
            for (Type t : ((GeneratedType) type).getImplements()) {
                // "rpc" and "grouping" elements do not implement Augmentable
                if (t.getFullyQualifiedName().equals(Augmentable.class.getName())) {
                    return true;
                } else if (t.getFullyQualifiedName().equals(Augmentation.class.getName())) {
                    return true;
                }

            }
        }
        return false;
    }

    @Override
    public Identifier getUnitName(Type type) {
        return new UnitName(type.getName());
    }
}