content: /*
   * 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.camel.karavan.listener;
  
  import com.github.dockerjava.api.model.Container;
  import com.github.dockerjava.api.model.Statistics;
  import com.github.dockerjava.core.InvocationBuilder;
  import io.quarkus.vertx.ConsumeEvent;
  import io.vertx.core.json.JsonObject;
  import io.vertx.mutiny.core.eventbus.EventBus;
  import jakarta.enterprise.context.ApplicationScoped;
  import jakarta.inject.Inject;
  import org.apache.camel.karavan.KaravanCache;
  import org.apache.camel.karavan.KaravanConstants;
  import org.apache.camel.karavan.docker.DockerService;
  import org.apache.camel.karavan.docker.DockerUtils;
  import org.apache.camel.karavan.model.PodContainerStatus;
  import org.eclipse.microprofile.config.inject.ConfigProperty;
  
  import java.io.IOException;
  import java.time.Instant;
  import java.time.temporal.ChronoUnit;
  import java.util.ArrayList;
  import java.util.List;
  
  import static org.apache.camel.karavan.KaravanEvents.*;
  
  @ApplicationScoped
  public class DockerStatusListener {
  
      @ConfigProperty(name = "karavan.environment", defaultValue = KaravanConstants.DEV)
      String environment;
  
      @Inject
      DockerService dockerService;
  
      @Inject
      KaravanCache karavanCache;
  
      @Inject
      EventBus eventBus;
  
      @ConsumeEvent(value = CMD_COLLECT_CONTAINER_STATISTIC, blocking = true)
      void collectContainersStatistics(JsonObject data) {
          PodContainerStatus status = data.mapTo(PodContainerStatus.class);
          PodContainerStatus newStatus = getContainerStatistics(status);
          eventBus.publish(POD_CONTAINER_UPDATED, JsonObject.mapFrom(newStatus));
      }
  
      @ConsumeEvent(value = CMD_CLEAN_STATUSES, blocking = true)
      void cleanContainersStatuses(String data) {
          List<PodContainerStatus> statusesInDocker = getContainersStatuses();
          List<String> namesInDocker = statusesInDocker.stream().map(PodContainerStatus::getContainerName).toList();
          List<PodContainerStatus> statusesInCache = karavanCache.getPodContainerStatuses(environment);
          // clean deleted
          statusesInCache.stream()
                  .filter(cs -> !checkTransit(cs))
                  .filter(cs -> !namesInDocker.contains(cs.getContainerName()))
                  .forEach(containerStatus -> {
                      eventBus.publish(POD_CONTAINER_DELETED, JsonObject.mapFrom(containerStatus));
                  });
      }
  
      private boolean checkTransit(PodContainerStatus cs) {
          if (cs.getContainerId() == null && cs.getInTransit()) {
              return Instant.parse(cs.getInitDate()).until(Instant.now(), ChronoUnit.SECONDS) < 10;
          }
          return false;
      }
  
      public List<PodContainerStatus> getContainersStatuses() {
          List<PodContainerStatus> result = new ArrayList<>();
          dockerService.getAllContainers().forEach(container -> {
              PodContainerStatus podContainerStatus = DockerUtils.getContainerStatus(container, environment);
              result.add(podContainerStatus);
          });
          return result;
      }
  
      public PodContainerStatus getContainerStatistics(PodContainerStatus podContainerStatus) {
          Container container = dockerService.getContainerByName(podContainerStatus.getContainerName());
          Statistics stats = getContainerStats(container.getId());
          DockerUtils.updateStatistics(podContainerStatus, stats);
          return podContainerStatus;
      }
  
      public Statistics getContainerStats(String containerId) {
          InvocationBuilder.AsyncResultCallback<Statistics> callback = new InvocationBuilder.AsyncResultCallback<>();
          dockerService.getDockerClient().statsCmd(containerId).withContainerId(containerId).withNoStream(true).exec(callback);
          Statistics stats = null;
          try {
              stats = callback.awaitResult();
              callback.close();
          } catch (RuntimeException | IOException e) {
              // you may want to throw an exception here
          }
          return stats;
      }
  }