/*
    * 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.io.IOException;
  import java.net.URI;
  import java.util.ArrayList;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  
  public class License {
      private final String text;
      private final String key;
      private final Set<Archive> archives = new HashSet<>();
      private final List<File> locations = new ArrayList<>();
  
      public License(final String key, final String text) {
          this.text = text;
          this.key = key;
      }
  
      public String getText() {
          return this.text;
      }
  
      public String getKey() {
          return this.key;
      }
  
      public Set<Archive> getArchives() {
          return this.archives;
      }
  
      public List<File> getLocations() {
          return this.locations;
      }
  
      public Set<URI> locations(final Archive archive) throws IOException {
          final URI contents = archive.contentsURI();
          final Set<URI> locations = new HashSet<>();
          for (final File file : this.locations) {
              final URI uri = file.toURI();
              final URI relativize = contents.relativize(uri);
              if (!relativize.equals(uri)) {
                  locations.add(relativize);
              }
          }
  
          return locations;
      }
  
      @Override
      public boolean equals(final Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
  
          final License license = (License) o;
  
          return this.key.equals(license.key);
      }
  
      @Override
      public int hashCode() {
          return this.key.hashCode();
      }
  
      public boolean implies(final License fullLicense) {
          return fullLicense.key.contains(this.key);
      }
  }