content: /*
   *  Copyright 2016-2024 Qameta Software Inc
   *
   *  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
   *
   *      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 io.qameta.allure.executor;
  
  import io.qameta.allure.CommonJsonAggregator2;
  import io.qameta.allure.Constants;
  import io.qameta.allure.Reader;
  import io.qameta.allure.context.JacksonContext;
  import io.qameta.allure.core.Configuration;
  import io.qameta.allure.core.LaunchResults;
  import io.qameta.allure.core.ResultsVisitor;
  import io.qameta.allure.entity.ExecutorInfo;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.util.Comparator;
  import java.util.List;
  import java.util.Optional;
  import java.util.stream.Collectors;
  
  import static java.util.Comparator.comparing;
  import static java.util.Comparator.naturalOrder;
  import static java.util.Comparator.nullsFirst;
  
  /**
   * @author charlie (Dmitry Baev).
   */
  public class ExecutorPlugin extends CommonJsonAggregator2 implements Reader {
  
      public static final String EXECUTORS_BLOCK_NAME = "executor";
  
      protected static final String JSON_FILE_NAME = "executor.json";
  
      private static final Comparator<ExecutorInfo> COMPARATOR
              = comparing(ExecutorInfo::getBuildOrder, nullsFirst(naturalOrder()));
  
      public ExecutorPlugin() {
          super(Constants.WIDGETS_DIR, "executors.json");
      }
  
      @Override
      public void readResults(final Configuration configuration,
                              final ResultsVisitor visitor,
                              final Path directory) {
          final JacksonContext context = configuration.requireContext(JacksonContext.class);
          final Path executorFile = directory.resolve(JSON_FILE_NAME);
          if (Files.exists(executorFile)) {
              try (InputStream is = Files.newInputStream(executorFile)) {
                  final ExecutorInfo info = context.getValue().readValue(is, ExecutorInfo.class);
                  visitor.visitExtra(EXECUTORS_BLOCK_NAME, info);
              } catch (IOException e) {
                  visitor.error("Could not read executor file " + executorFile, e);
              }
          }
      }
  
      @Override
      protected List<ExecutorInfo> getData(final List<LaunchResults> launches) {
          return launches.stream()
                  .map(launchResults -> launchResults.getExtra(EXECUTORS_BLOCK_NAME))
                  .filter(Optional::isPresent)
                  .map(Optional::get)
                  .filter(ExecutorInfo.class::isInstance)
                  .map(ExecutorInfo.class::cast)
                  .collect(Collectors.toList());
      }
  
      public static Optional<ExecutorInfo> getLatestExecutor(final List<LaunchResults> launches) {
          return launches.stream()
                  .map(launch -> launch.getExtra(EXECUTORS_BLOCK_NAME))
                  .filter(Optional::isPresent)
                  .map(Optional::get)
                  .filter(ExecutorInfo.class::isInstance)
                  .map(ExecutorInfo.class::cast)
                  .max(COMPARATOR);
      }
  }
  