/*
 * 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.celeborn.tests.flink;

import org.apache.flink.api.common.JobID;
import org.apache.flink.client.program.MiniClusterClient;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.configuration.MemorySize;
import org.apache.flink.configuration.TaskManagerOptions;
import org.apache.flink.runtime.jobgraph.JobGraph;
import org.apache.flink.runtime.jobmaster.JobResult;
import org.apache.flink.runtime.minicluster.MiniCluster;
import org.apache.flink.runtime.minicluster.MiniClusterConfiguration;

/** Utils to run {@link JobGraph} on {@link MiniCluster}. */
public class JobGraphRunningHelper {

  public static void execute(
      JobGraph jobGraph,
      Configuration configuration,
      int numTaskManagers,
      int numSlotsPerTaskManager)
      throws Exception {
    configuration.set(TaskManagerOptions.TOTAL_FLINK_MEMORY, MemorySize.parse("1g"));

    // use random ports
    if (!configuration.containsKey("jobmanager.rpc.port")) {
      configuration.setString("jobmanager.rpc.port", "0");
    }
    if (!configuration.containsKey("rest.bind-port")) {
      configuration.setString("rest.bind-port", "0");
    }

    final MiniClusterConfiguration miniClusterConfiguration =
        new MiniClusterConfiguration.Builder()
            .setConfiguration(configuration)
            .setNumTaskManagers(numTaskManagers)
            .setNumSlotsPerTaskManager(numSlotsPerTaskManager)
            .build();

    try (MiniCluster miniCluster = new MiniCluster(miniClusterConfiguration)) {
      miniCluster.start();

      MiniClusterClient miniClusterClient = new MiniClusterClient(configuration, miniCluster);
      // wait for the submission to succeed
      JobID jobID = miniClusterClient.submitJob(jobGraph).get();

      JobResult jobResult = miniClusterClient.requestJobResult(jobID).get();
      if (jobResult.getSerializedThrowable().isPresent()) {
        throw new AssertionError(jobResult.getSerializedThrowable().get());
      }
    }
  }
}
