/**
 * Copyright (C) 2009 STMicroelectronics
 *
 * This file is part of "Mind Compiler" is free software: you can redistribute 
 * it and/or modify it under the terms of the GNU Lesser General Public License 
 * as published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT 
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Contact: mind@ow2.org
 *
 * Authors: Matthieu Leclercq, Ali Erdem Ozcan
 * Contributors: 
 */

package org.ow2.mind.adl.idl;

import static org.ow2.mind.BindingControllerImplHelper.checkItfName;
import static org.ow2.mind.BindingControllerImplHelper.listFcHelper;

import java.util.Map;

import org.objectweb.fractal.adl.ADLException;
import org.objectweb.fractal.adl.Definition;
import org.objectweb.fractal.adl.interfaces.Interface;
import org.objectweb.fractal.adl.interfaces.InterfaceContainer;
import org.objectweb.fractal.adl.types.TypeInterface;
import org.objectweb.fractal.api.NoSuchInterfaceException;
import org.objectweb.fractal.api.control.BindingController;
import org.objectweb.fractal.api.control.IllegalBindingException;
import org.ow2.mind.adl.DefinitionSourceGenerator;
import org.ow2.mind.idl.IDLLoader;
import org.ow2.mind.idl.IDLVisitor;
import org.ow2.mind.idl.ast.IDL;
import org.ow2.mind.idl.ast.InterfaceDefinition;

public class IDLDefinitionSourceGenerator
    implements
      DefinitionSourceGenerator,
      BindingController {

  // ---------------------------------------------------------------------------
  // Client interfaces
  // ---------------------------------------------------------------------------

  public IDLLoader           idlLoaderItf;

  public static final String IDL_COMPILER_ITF_NAME = "idl-compiler";
  public IDLVisitor          idlCompilerItf;

  // ---------------------------------------------------------------------------
  // Implementation of the Visitor interface
  // ---------------------------------------------------------------------------

  public void visit(final Definition definition,
      final Map<Object, Object> context) throws ADLException {
    if (definition instanceof InterfaceContainer) {
      for (final Interface itf : ((InterfaceContainer) definition)
          .getInterfaces()) {
        if (!(itf instanceof TypeInterface)) continue;
        final InterfaceDefinition itfDef = InterfaceDefinitionDecorationHelper
            .getResolvedInterfaceDefinition((TypeInterface) itf, idlLoaderItf,
                context);
        idlCompilerItf.visit(itfDef, context);
      }
    }

    for (final InterfaceDefinition itfDef : InterfaceDefinitionDecorationHelper
        .getUsedInterfaceDefinitions(definition, idlLoaderItf, context)) {
      idlCompilerItf.visit(itfDef, context);
    }

    // TODO this can be moved in a dedicated component
    // ensure that the "memory.api.Allocator" interface is compiled
    final IDL itfDef = idlLoaderItf.load("memory.api.Allocator", context);
    idlCompilerItf.visit(itfDef, context);
  }

  // ---------------------------------------------------------------------------
  // implementation of the BindingController interface
  // ---------------------------------------------------------------------------

  public void bindFc(final String itfName, final Object value)
      throws NoSuchInterfaceException, IllegalBindingException {
    checkItfName(itfName);

    if (itfName.equals(IDLLoader.ITF_NAME)) {
      idlLoaderItf = (IDLLoader) value;
    } else if (itfName.equals(IDL_COMPILER_ITF_NAME)) {
      idlCompilerItf = (IDLVisitor) value;
    } else {
      throw new NoSuchInterfaceException("There is no interface named '"
          + itfName + "'");
    }
  }

  public String[] listFc() {
    return listFcHelper(IDLLoader.ITF_NAME, IDL_COMPILER_ITF_NAME);
  }

  public Object lookupFc(final String itfName) throws NoSuchInterfaceException {
    checkItfName(itfName);

    if (itfName.equals(IDLLoader.ITF_NAME)) {
      return idlLoaderItf;
    } else if (itfName.equals(IDL_COMPILER_ITF_NAME)) {
      return idlCompilerItf;
    } else {
      throw new NoSuchInterfaceException("There is no interface named '"
          + itfName + "'");
    }
  }

  public void unbindFc(final String itfName) throws NoSuchInterfaceException,
      IllegalBindingException {
    checkItfName(itfName);

    if (itfName.equals(IDLLoader.ITF_NAME)) {
      idlLoaderItf = null;
    } else if (itfName.equals(IDL_COMPILER_ITF_NAME)) {
      idlCompilerItf = null;
    } else {
      throw new NoSuchInterfaceException("There is no interface named '"
          + itfName + "'");
    }
  }
}
