/**
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    *  to you 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 org.apache.creadur.tentacles;
  
  import java.io.File;
  import java.net.URI;
  import java.net.URISyntaxException;
  
  public class Configuration {
  
      private static final String DEFAULT_FILE_REPOSITORY_PATH_NAME_FILTER =
              "org/apache/openejb";
      private static final String SYSTEM_PROPERTY_NAME_FOR_FILE_REPOSITORY_PATH_NAME_FILTER =
              "filter";
      private static final int ARGUMENT_INDEX_FOR_LOCAL_ROOT_DIRECTORY = 1;
      private static final int ARGUMENT_INDEX_FOR_URI_CONFIGURATION = 0;
      private static final int ARGUMENT_LENGTH_FOR_URI_CONFIGURATION_ONLY =
              ARGUMENT_INDEX_FOR_URI_CONFIGURATION + 1;
  
      private static URI toURI(final String arg) throws URISyntaxException {
          final URI uri = new URI(arg);
          if (arg.startsWith("file:")) {
              return new File(uri).getAbsoluteFile().toURI();
          }
          return uri;
      }
  
      private final URI stagingRepositoryURI;
      private final String rootDirectoryForLocalOutput;
      private final String fileRepositoryPathNameFilter;
  
      public Configuration(final String... args) throws URISyntaxException {
          this.stagingRepositoryURI = toURI(args[ARGUMENT_INDEX_FOR_URI_CONFIGURATION]);
          this.rootDirectoryForLocalOutput = rootDirectoryForLocalOutput(args);
          this.fileRepositoryPathNameFilter =
                  System.getProperty(
                          SYSTEM_PROPERTY_NAME_FOR_FILE_REPOSITORY_PATH_NAME_FILTER,
                          DEFAULT_FILE_REPOSITORY_PATH_NAME_FILTER);
      }
  
      public String getFileRepositoryPathNameFilter() {
          return this.fileRepositoryPathNameFilter;
      }
  
      public URI getStagingRepositoryURI() {
          return this.stagingRepositoryURI;
      }
  
      public String getRootDirectoryForLocalOutput() {
          return this.rootDirectoryForLocalOutput;
      }
  
      private String rootDirectoryForLocalOutput(final String... args) {
          final String rootDirectoryForLocal;
          if (args.length > ARGUMENT_LENGTH_FOR_URI_CONFIGURATION_ONLY) {
              rootDirectoryForLocal =
                      args[ARGUMENT_INDEX_FOR_LOCAL_ROOT_DIRECTORY];
          } else {
              rootDirectoryForLocal = new File(this.stagingRepositoryURI.getPath()).getName();
          }
          return rootDirectoryForLocal;
      }
  }