/*
    * 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.maven.api.services;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.util.Objects;
  
  class PathSource implements ModelSource {
  
      private final Path path;
      private final String location;
  
      PathSource(Path path) {
          this(path, null);
      }
  
      PathSource(Path path, String location) {
          this.path = path;
          this.location = location != null ? location : path.toString();
      }
  
      @Override
      public Path getPath() {
          return path;
      }
  
      @Override
      public InputStream openStream() throws IOException {
          return Files.newInputStream(path);
      }
  
      @Override
      public String getLocation() {
          return location;
      }
  
      @Override
      public Source resolve(String relative) {
          return new PathSource(path.resolve(relative));
      }
  
      @Override
      public ModelSource resolve(ModelLocator locator, String relative) {
          String norm = relative.replace('\\', File.separatorChar).replace('/', File.separatorChar);
          Path path = getPath().getParent().resolve(norm);
          Path relatedPom = locator.locateExistingPom(path);
          if (relatedPom != null) {
              return new PathSource(relatedPom.normalize(), null);
          }
          return null;
      }
  
      @Override
      public boolean equals(Object o) {
          return this == o || o instanceof PathSource ps && Objects.equals(path, ps.path);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(path);
      }
  
      @Override
      public String toString() {
          return "PathSource[" + "location='" + location + '\'' + ", " + "path=" + path + ']';
      }
  }