/*
    * 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.report.projectinfo;
  
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.List;
  import java.util.Locale;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.versioning.VersionRange;
  import org.apache.maven.doxia.sink.Sink;
  import org.apache.maven.model.Plugin;
  import org.apache.maven.model.PluginManagement;
  import org.apache.maven.plugin.logging.Log;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.plugins.annotations.ResolutionScope;
  import org.apache.maven.project.DefaultProjectBuildingRequest;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.project.ProjectBuilder;
  import org.apache.maven.project.ProjectBuildingException;
  import org.apache.maven.project.ProjectBuildingRequest;
  import org.apache.maven.reporting.MavenReportException;
  import org.apache.maven.repository.RepositorySystem;
  import org.apache.maven.shared.artifact.filter.PatternExcludesArtifactFilter;
  import org.codehaus.plexus.i18n.I18N;
  import org.codehaus.plexus.util.StringUtils;
  
  /**
   * Generates the Project Plugin Management report.
   *
   * @author Nick Stolwijk
   * @since 2.1
   */
  @Mojo(name = "plugin-management", requiresDependencyResolution = ResolutionScope.TEST)
  public class PluginManagementReport extends AbstractProjectInfoReport {
  
      /**
       * Specify the excluded plugins. This can be a list of artifacts in the format
       * groupId[:artifactId[:type[:version]]]. <br>
       * Plugins matching any exclude will not be present in the report.
       *
       * @since 3.0.1
       */
      @Parameter
      private List<String> pluginManagementExcludes = null;
  
      // ----------------------------------------------------------------------
      // Public methods
      // ----------------------------------------------------------------------
  
      @Override
      public void executeReport(Locale locale) {
          PluginManagementRenderer r = new PluginManagementRenderer(
                  getLog(),
                  getSink(),
                  locale,
                  getI18N(locale),
                  project.getPluginManagement().getPlugins(),
                  project,
                  projectBuilder,
                  repositorySystem,
                  getSession().getProjectBuildingRequest(),
                  pluginManagementExcludes);
          r.render();
      }
  
      /** {@inheritDoc} */
      public String getOutputName() {
          return "plugin-management";
      }
  
      @Override
      protected String getI18Nsection() {
          return "plugin-management";
      }
  
      @Override
      public boolean canGenerateReport() throws MavenReportException {
          boolean result = super.canGenerateReport();
          if (result && skipEmptyReport) {
              result = getProject().getPluginManagement() != null
                     && !isEmpty(project.getPluginManagement().getPlugins());
         }
 
         return result;
     }
 
     // ----------------------------------------------------------------------
     // Private
     // ----------------------------------------------------------------------
 
     /**
      * Internal renderer class
      *
      * @author Nick Stolwijk
      */
     protected static class PluginManagementRenderer extends AbstractProjectInfoRenderer {
 
         private final Log log;
 
         private final List<Plugin> pluginManagement;
 
         private final MavenProject project;
 
         private final ProjectBuilder projectBuilder;
 
         private final RepositorySystem repositorySystem;
 
         private final ProjectBuildingRequest buildingRequest;
 
         private final PatternExcludesArtifactFilter patternExcludesArtifactFilter;
 
         /**
          * @param log {@link #log}
          * @param sink {@link Sink}
          * @param locale {@link Locale}
          * @param i18n {@link I18N}
          * @param plugins {@link Plugin}
          * @param project {@link MavenProject}
          * @param projectBuilder {@link ProjectBuilder}
          * @param repositorySystem {@link RepositorySystem}
          * @param buildingRequest {@link ProjectBuildingRequest}
          * @param excludes the list of plugins to be excluded from the report
          */
         public PluginManagementRenderer(
                 Log log,
                 Sink sink,
                 Locale locale,
                 I18N i18n,
                 List<Plugin> plugins,
                 MavenProject project,
                 ProjectBuilder projectBuilder,
                 RepositorySystem repositorySystem,
                 ProjectBuildingRequest buildingRequest,
                 List<String> excludes) {
             super(sink, i18n, locale);
 
             this.log = log;
 
             this.pluginManagement = plugins;
 
             this.project = project;
 
             this.projectBuilder = projectBuilder;
 
             this.repositorySystem = repositorySystem;
 
             this.buildingRequest = buildingRequest;
 
             this.patternExcludesArtifactFilter = new PatternExcludesArtifactFilter(excludes);
         }
 
         @Override
         protected String getI18Nsection() {
             return "plugin-management";
         }
 
         @Override
         protected void renderBody() {
             PluginManagement projectPluginManagement = project.getPluginManagement();
 
             if (projectPluginManagement == null
                     || projectPluginManagement.getPlugins() == null
                     || projectPluginManagement.getPlugins().isEmpty()) {
                 startSection(getTitle());
 
                 paragraph(getI18nString("nolist"));
 
                 endSection();
 
                 return;
             }
 
             // === Section: Project PluginManagement.
             renderSectionPluginManagement();
         }
 
         private void renderSectionPluginManagement() {
             String[] tableHeader = getPluginTableHeader();
 
             startSection(getTitle());
 
             // can't use straight artifact comparison because we want optional last
             Collections.sort(pluginManagement, getPluginComparator());
 
             startTable();
             tableHeader(tableHeader);
 
             ProjectBuildingRequest buildRequest = new DefaultProjectBuildingRequest(buildingRequest);
             buildRequest.setRemoteRepositories(project.getPluginArtifactRepositories());
             buildRequest.setProcessPlugins(false);
 
             for (Plugin plugin : pluginManagement) {
                 VersionRange versionRange;
                 if (StringUtils.isEmpty(plugin.getVersion())) {
                     versionRange = VersionRange.createFromVersion(Artifact.RELEASE_VERSION);
                 } else {
                     versionRange = VersionRange.createFromVersion(plugin.getVersion());
                 }
 
                 Artifact pluginArtifact = repositorySystem.createProjectArtifact(
                         plugin.getGroupId(), plugin.getArtifactId(), versionRange.toString());
 
                 if (patternExcludesArtifactFilter.include(pluginArtifact)) {
                     try {
                         MavenProject pluginProject = projectBuilder
                                 .build(pluginArtifact, buildRequest)
                                 .getProject();
 
                         tableRow(getPluginRow(
                                 pluginProject.getGroupId(), pluginProject.getArtifactId(),
                                 pluginProject.getVersion(), pluginProject.getUrl()));
                     } catch (ProjectBuildingException e) {
                         log.info("Could not build project for " + plugin.getArtifactId(), e);
                         tableRow(getPluginRow(plugin.getGroupId(), plugin.getArtifactId(), plugin.getVersion(), null));
                     }
                 } else {
                     log.debug("Excluding plugin " + pluginArtifact.getId() + " from report");
                 }
             }
             endTable();
 
             endSection();
         }
 
         // ----------------------------------------------------------------------
         // Private methods
         // ----------------------------------------------------------------------
 
         private String[] getPluginTableHeader() {
             // reused key...
             String groupId = getI18nString("dependency-management", "column.groupId");
             String artifactId = getI18nString("dependency-management", "column.artifactId");
             String version = getI18nString("dependency-management", "column.version");
             return new String[] {groupId, artifactId, version};
         }
 
         private String[] getPluginRow(String groupId, String artifactId, String version, String link) {
             artifactId = ProjectInfoReportUtils.getArtifactIdCell(artifactId, link);
             return new String[] {groupId, artifactId, version};
         }
 
         private Comparator<Plugin> getPluginComparator() {
             return new Comparator<Plugin>() {
                 /** {@inheritDoc} */
                 public int compare(Plugin a1, Plugin a2) {
                     int result = a1.getGroupId().compareTo(a2.getGroupId());
                     if (result == 0) {
                         result = a1.getArtifactId().compareTo(a2.getArtifactId());
                     }
                     return result;
                 }
             };
         }
     }
 }