/*
    *    Copyright 2011-2024 the original author or authors.
    *
    *    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
    *
    *       https://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.commonjava.maven.plugins.execroot;
  
  import java.io.File;
  import java.util.ArrayDeque;
  import java.util.Deque;
  import java.util.List;
  
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugins.annotations.LifecyclePhase;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.project.MavenProject;
  
  /**
   * The Class DirectoryOfGoal.
   */
  @Mojo(name = "directory-of", defaultPhase = LifecyclePhase.INITIALIZE, requiresProject = true, threadSafe = true)
  public class DirectoryOfGoal extends AbstractDirectoryGoal {
  
      /** The Constant DIR_OF_CONTEXT_KEY. */
      protected static final String DIR_OF_CONTEXT_KEY = "directories.directoryOf-";
  
      /** The project. */
      @Parameter
      private ProjectRef project;
  
      /** The projects. */
      @Parameter(defaultValue = "${reactorProjects}", readonly = true)
      protected List<MavenProject> projects;
  
      @Override
      protected File findDirectory() throws MojoExecutionException {
          File dir = null;
  
          final Deque<MavenProject> toCheck = new ArrayDeque<>(projects);
          while (!toCheck.isEmpty()) {
              final MavenProject mavenProject = toCheck.pop();
              if (project.matches(mavenProject)) {
                  dir = mavenProject.getBasedir();
                  break;
              }
  
              if (mavenProject.getParent() != null) {
                  toCheck.add(mavenProject.getParent());
              }
          }
  
          if (dir == null) {
              throw new MojoExecutionException("Cannot find directory for project: " + project);
          }
  
          return dir;
      }
  
      @Override
      protected String getContextKey() {
          return DIR_OF_CONTEXT_KEY + project;
      }
  
      @Override
      protected String getLogLabel() {
          return "Directory of " + project;
      }
  
  }