/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2011 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.tools.jxc.api.impl.j2s;

import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import javax.xml.bind.annotation.XmlList;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import javax.xml.namespace.QName;

import javax.annotation.processing.ProcessingEnvironment;
import javax.annotation.processing.Messager;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.VariableElement;
import javax.lang.model.type.TypeMirror;
import javax.tools.Diagnostic;
import com.sun.tools.jxc.ap.InlineAnnotationReaderImpl;
import com.sun.tools.jxc.model.nav.ApNavigator;
import com.sun.tools.xjc.api.J2SJAXBModel;
import com.sun.tools.xjc.api.JavaCompiler;
import com.sun.tools.xjc.api.Reference;
import com.sun.xml.bind.v2.model.core.ErrorHandler;
import com.sun.xml.bind.v2.model.core.Ref;
import com.sun.xml.bind.v2.model.core.TypeInfoSet;
import com.sun.xml.bind.v2.model.impl.ModelBuilder;
import com.sun.xml.bind.v2.runtime.IllegalAnnotationException;

/**
 * @author Kohsuke Kawaguchi (kk@kohsuke.org)
 */
public class JavaCompilerImpl implements JavaCompiler {
    public J2SJAXBModel bind(
        Collection<Reference> rootClasses,
        Map<QName,Reference> additionalElementDecls,
        String defaultNamespaceRemap,
        ProcessingEnvironment env) {

        ModelBuilder<TypeMirror, TypeElement, VariableElement, ExecutableElement> builder =
                new ModelBuilder<TypeMirror, TypeElement, VariableElement, ExecutableElement>(
                InlineAnnotationReaderImpl.theInstance,
                new ApNavigator(env),
                Collections.<TypeElement, TypeElement>emptyMap(),
                defaultNamespaceRemap );

        builder.setErrorHandler(new ErrorHandlerImpl(env.getMessager()));

        for ( Reference ref : rootClasses ) {
            TypeMirror t = ref.type;

            XmlJavaTypeAdapter xjta = ref.annotations.getAnnotation(XmlJavaTypeAdapter.class);
            XmlList xl = ref.annotations.getAnnotation(XmlList.class);

            builder.getTypeInfo(new Ref<TypeMirror, TypeElement>(builder, t, xjta, xl));
        }

        TypeInfoSet<TypeMirror, TypeElement, VariableElement, ExecutableElement> r = builder.link();
        if(r==null)     return null;

        if(additionalElementDecls==null)
            additionalElementDecls = Collections.emptyMap();
        else {
            // fool proof check
            for (Map.Entry<QName, ? extends Reference> e : additionalElementDecls.entrySet()) {
                if(e.getKey()==null)
                    throw new IllegalArgumentException("nulls in additionalElementDecls");
            }
        }
        return new JAXBModelImpl(r, builder.reader, rootClasses, new HashMap<QName, Reference>(additionalElementDecls));
    }

    private static final class ErrorHandlerImpl implements ErrorHandler {
        private final Messager messager;

        public ErrorHandlerImpl(Messager messager) {
            this.messager = messager;
        }

        public void error(IllegalAnnotationException e) {
            String error = e.toString();
            messager.printMessage(Diagnostic.Kind.ERROR, error);
            System.err.println(error); //TODO: temporary fix problem with no ouput from messager
        }
    }
}