/*
 *
 * Copyright 2002-2004 The Ant-Contrib project
 *
 *  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.
 */
package net.sf.antcontrib.cpptasks.openwatcom;

import java.util.Vector;

import net.sf.antcontrib.cpptasks.types.LibraryTypeEnum;

/**
 * A add-in class for OpenWatcom processors.
 *
 *
 */
public final class OpenWatcomProcessor {
  /**
   * Adds warning command line options.
   *
   * @param args Vector list of options
   * @param level int value of WarningLevelEnum
   */
  public static void addWarningSwitch(final Vector args, final int level) {
    switch (level) {
      case 0:
        args.addElement("/w0");
        break;
      case 1:
        args.addElement("/w1");
        break;
      case 2:
        break;
      case 3:
        args.addElement("/w2");
        break;
      case 4:
        args.addElement("/w3");
        break;
      case 5:
        args.addElement("/we");
        break;
      default:
        args.addElement("/w1");
        break;
    }
  }

  /**
   * Gets command line option to read from an option file.
   *
   * @param cmdFile String file name for option file
   * @return String Command line option
   */
  public static String getCommandFileSwitch(final String cmdFile) {
    StringBuffer buf = new StringBuffer("@");
    if (cmdFile.indexOf(' ') >= 0) {
      buf.append('\"');
      buf.append(cmdFile.replace('/', '\\'));
      buf.append('\"');
    } else {
      buf.append(cmdFile);
    }
    return buf.toString();
  }

  /**
   * Creates a command line option to define a preprocessor macro.
   *
   * @param buffer StringBuffer destination buffer
   * @param define String parameter to define
   * @param value String value, may be null
   */
  public static void getDefineSwitch(final StringBuffer buffer,
                                     final String define,
                                     final String value) {
    buffer.append("/d");
    buffer.append(define);
    if (value != null && value.length() > 0) {
      buffer.append('=');
      buffer.append(value);
    }
  }

  /**
   * Create a command line option to add a directory to the include path.
   * @param includeDir String directory
   * @return String command line option
   */
  public static String getIncludeDirSwitch(final String includeDir) {
    return "/i=" + includeDir.replace('/', '\\');
  }

  /**
   * Builds command line options to specify the output file names.
   *
   * @param outPath String path to output file
   * @return String[] command line options
   */
  public static String[] getOutputFileSwitch(final String outPath) {
    StringBuffer buf = new StringBuffer("/fo=");
    if (outPath.indexOf(' ') >= 0) {
      buf.append('\"');
      buf.append(outPath);
      buf.append('\"');
    } else {
      buf.append(outPath);
    }
    String[] retval = new String[] {
        buf.toString()};
    return retval;
  }

  /**
   * Get file selectors for specified libraries.
   * @param libnames library names
   * @param libType library type
   * @return file selectors
   */
  public static String[] getLibraryPatterns(final String[] libnames,
                                            final LibraryTypeEnum libType) {
    StringBuffer buf = new StringBuffer();
    String[] patterns = new String[libnames.length];
    for (int i = 0; i < libnames.length; i++) {
      buf.setLength(0);
      buf.append(libnames[i]);
      buf.append(".lib");
      patterns[i] = buf.toString();
    }
    return patterns;
  }

  /**
   * Builds a command line option to undefine a preprocessor macro.
   * @param buffer StringBuffer destination
   * @param define String macro to be undefined
   */
  public static void getUndefineSwitch(final StringBuffer buffer,
                                       final String define) {
    buffer.append("/u");
    buffer.append(define);
  }

  /**
   * Gets whether processor tratement of file names is case-sensitive.
   * @return boolean true if case sensitive
   */
  public static boolean isCaseSensitive() {
    return false;
  }

  /**
   * Private constructor.
   */
  private OpenWatcomProcessor() {
  }

}