/*
 * 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.geode.management.internal.cli.commands;

import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;

import org.apache.logging.log4j.Logger;
import org.springframework.shell.standard.ShellMethod;
import org.springframework.shell.standard.ShellOption;

import org.apache.geode.annotations.VisibleForTesting;
import org.apache.geode.cache.configuration.CacheConfig;
import org.apache.geode.distributed.DistributedMember;
import org.apache.geode.logging.internal.log4j.api.LogService;
import org.apache.geode.management.DistributedSystemMXBean;
import org.apache.geode.management.cli.CliMetaData;
import org.apache.geode.management.cli.SingleGfshCommand;
import org.apache.geode.management.internal.cli.functions.GatewaySenderDestroyFunction;
import org.apache.geode.management.internal.cli.functions.GatewaySenderDestroyFunctionArgs;
import org.apache.geode.management.internal.cli.result.model.ResultModel;
import org.apache.geode.management.internal.functions.CliFunctionResult;
import org.apache.geode.management.internal.i18n.CliStrings;
import org.apache.geode.management.internal.security.ResourceOperation;
import org.apache.geode.security.ResourcePermission;

public class DestroyGatewaySenderCommand extends SingleGfshCommand {
  private static final Logger logger = LogService.getLogger();
  private static final int MBEAN_DELETION_WAIT_TIME = 10000;

  @ShellMethod(value = CliStrings.DESTROY_GATEWAYSENDER__HELP,
      key = CliStrings.DESTROY_GATEWAYSENDER)
  @CliMetaData(relatedTopic = CliStrings.TOPIC_GEODE_WAN)
  @ResourceOperation(resource = ResourcePermission.Resource.CLUSTER,
      operation = ResourcePermission.Operation.MANAGE, target = ResourcePermission.Target.GATEWAY)
  public ResultModel destroyGatewaySender(
      @ShellOption(value = CliStrings.DESTROY_GATEWAYSENDER__ID,
          help = CliStrings.DESTROY_GATEWAYSENDER__ID__HELP) String id,
      @ShellOption(value = {CliStrings.GROUP, CliStrings.GROUPS},
          help = CliStrings.DESTROY_GATEWAYSENDER__GROUP__HELP) String[] onGroups,
      @ShellOption(value = {CliStrings.MEMBER, CliStrings.MEMBERS},
          help = CliStrings.DESTROY_GATEWAYSENDER__MEMBER__HELP) String[] onMember,
      @ShellOption(value = CliStrings.IFEXISTS, help = CliStrings.IFEXISTS_HELP,
          defaultValue = "false") boolean ifExist) {

    if (id == null) {
      return ResultModel.createError("You must specify a gateway sender id.");
    }

    GatewaySenderDestroyFunctionArgs gatewaySenderDestroyFunctionArgs =
        new GatewaySenderDestroyFunctionArgs(id, ifExist);

    Set<DistributedMember> members = getMembers(onGroups, onMember);

    List<CliFunctionResult> functionResults = executeAndGetFunctionResult(
        GatewaySenderDestroyFunction.INSTANCE, gatewaySenderDestroyFunctionArgs, members);

    ResultModel resultModel = ResultModel.createMemberStatusResult(functionResults);
    resultModel.setConfigObject(id);

    if (!waitForGatewaySenderMBeanDeletion(id, members)) {
      resultModel.addInfo()
          .addLine("Did not complete waiting for GatewaySenderMBean proxy deletion");
    }

    return resultModel;
  }

  /*
   * Wait for up tp 3 seconds for the proxy MBeans to be deleted.
   */
  @VisibleForTesting
  boolean waitForGatewaySenderMBeanDeletion(String id, Set<DistributedMember> members) {
    DistributedSystemMXBean dsMXBean = getManagementService().getDistributedSystemMXBean();

    return poll(MBEAN_DELETION_WAIT_TIME, TimeUnit.MILLISECONDS, () -> members.stream()
        .noneMatch(m -> CreateGatewaySenderCommand.gatewaySenderBeanExists(dsMXBean,
            m.getName(), id)));
  }

  @Override
  public boolean updateConfigForGroup(String group, CacheConfig config, Object id) {
    config.getGatewaySenders().removeIf((sender) -> sender.getId().equals(id));
    return true;
  }
}
