/*
    * Copyright (c) 2006 JMockit developers
    * This file is subject to the terms of the MIT license (see LICENSE.txt).
    */
   package mockit.coverage;
   
   import edu.umd.cs.findbugs.annotations.NonNull;
   import edu.umd.cs.findbugs.annotations.Nullable;
   
  import java.nio.file.Files;
  import java.nio.file.Path;
  
  public final class Configuration {
      private static final String COVERAGE_PREFIX = "coverage-";
  
      private Configuration() {
      }
  
      @Nullable
      public static String getProperty(@NonNull String nameSuffix) {
          return getProperty(nameSuffix, null);
      }
  
      public static String getProperty(@NonNull String nameSuffix, @Nullable String defaultValue) {
          return System.getProperty(COVERAGE_PREFIX + nameSuffix, defaultValue);
      }
  
      @Nullable
      public static String getOrChooseOutputDirectory(@NonNull String outputDir) {
          if (!outputDir.isEmpty()) {
              return outputDir;
          }
  
          return isTargetSubDirectoryAvailable() ? "target" : null;
      }
  
      private static boolean isTargetSubDirectoryAvailable() {
          return System.getProperty("basedir") != null || Files.exists(Path.of("target"));
      }
  
      @NonNull
      public static String getOrChooseOutputDirectory(@NonNull String outputDir, @NonNull String defaultDir) {
          if (!outputDir.isEmpty()) {
              return outputDir;
          }
  
          return isTargetSubDirectoryAvailable() ? "target/" + defaultDir : defaultDir;
      }
  }