/*
    * #%L
    * Native ARchive plugin for Maven
    * %%
    * Copyright (C) 2002 - 2014 NAR Maven Plugin developers.
    * %%
    * Licensed 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.
   * #L%
   */
  package com.github.maven_nar.cpptasks.ibm;
  
  import java.io.File;
  import java.util.Vector;
  
  import org.apache.tools.ant.types.Environment;
  
  import com.github.maven_nar.cpptasks.OptimizationEnum;
  import com.github.maven_nar.cpptasks.compiler.LinkType;
  import com.github.maven_nar.cpptasks.compiler.Linker;
  import com.github.maven_nar.cpptasks.gcc.GccCompatibleCCompiler;
  
  /**
   * Adapter for the IBM(r) Visual Age(tm) C++ compiler for AIX(tm)
   *
   * @author Curt Arnold
   */
  public final class VisualAgeCCompiler extends GccCompatibleCCompiler {
    private final static String[] headerExtensions = new String[] {
        ".h", ".hpp", ".inl"
    };
    private final static String[] sourceExtensions = new String[] {
        ".c", ".cc", ".cxx", ".cpp", ".i", ".s"
    };
  
    private static final VisualAgeCCompiler instance = new VisualAgeCCompiler("xlC", sourceExtensions, headerExtensions,
        false, null);
  
    /**
     * Gets singleton instance of this class
     */
    public static VisualAgeCCompiler getInstance() {
      return instance;
    }
  
    private String identifier;
    private File[] includePath;
  
    /**
     * Private constructor. Use getInstance() to get singleton instance of this
     * class.
     */
    private VisualAgeCCompiler(final String command, final String[] sourceExtensions, final String[] headerExtensions,
        final boolean newEnvironment, final Environment env) {
      super(command, "-help", sourceExtensions, headerExtensions, false, null, newEnvironment, env);
    }
  
    @Override
    public void addImpliedArgs(final Vector<String> args, final boolean debug, final boolean multithreaded,
        final boolean exceptions, final LinkType linkType, final Boolean rtti, final OptimizationEnum optimization) {
      args.addElement("-c");
      if (debug) {
        args.addElement("-g");
      }
      if (linkType.isSharedLibrary()) {
        args.addElement("-fpic");
      }
      if (rtti != null) {
        if (rtti.booleanValue()) {
          args.addElement("-qrtti=all");
        } else {
          args.addElement("-qnortti");
        }
      }
    }
  
    @Override
    public void addWarningSwitch(final Vector<String> args, final int level) {
      switch (level) {
        case 0:
          args.addElement("-w");
          break;
        case 1:
          args.addElement("-qflag=s:s");
          break;
        case 2:
          args.addElement("-qflag=e:e");
          break;
        case 3:
          args.addElement("-qflag=w:w");
         break;
       case 4:
         args.addElement("-qflag=i:i");
         break;
       case 5:
         args.addElement("-qhalt=w:w");
         break;
     }
   }
 
   /**
    * Gets identifier for the compiler.
    * 
    * Initial attempt at extracting version information
    * would lock up. Using a stock response.
    */
   @Override
   public String getIdentifier() {
     return "VisualAge compiler - unidentified version";
   }
 
   @Override
   public Linker getLinker(final LinkType linkType) {
     return VisualAgeLinker.getInstance().getLinker(linkType);
   }
 
   @Override
   public int getMaximumCommandLength() {
     return Integer.MAX_VALUE;
   }
 
 }