/*
 * 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
 *
 *   https://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.accumulo.manager.tableOps.clone;

import org.apache.accumulo.core.client.NamespaceNotFoundException;
import org.apache.accumulo.core.clientImpl.AcceptableThriftTableOperationException;
import org.apache.accumulo.core.clientImpl.thrift.TableOperation;
import org.apache.accumulo.core.clientImpl.thrift.TableOperationExceptionType;
import org.apache.accumulo.core.clientImpl.thrift.ThriftSecurityException;
import org.apache.accumulo.core.fate.FateId;
import org.apache.accumulo.core.fate.Repo;
import org.apache.accumulo.core.security.TablePermission;
import org.apache.accumulo.manager.Manager;
import org.apache.accumulo.manager.tableOps.ManagerRepo;
import org.slf4j.LoggerFactory;

class ClonePermissions extends ManagerRepo {

  private static final long serialVersionUID = 1L;

  private final CloneInfo cloneInfo;

  public ClonePermissions(CloneInfo cloneInfo) {
    this.cloneInfo = cloneInfo;
  }

  @Override
  public long isReady(FateId fateId, Manager environment) {
    return 0;
  }

  @Override
  public Repo<Manager> call(FateId fateId, Manager environment) throws Exception {
    // give all table permissions to the creator
    for (TablePermission permission : TablePermission.values()) {
      try {
        environment.getContext().getSecurityOperation().grantTablePermission(
            environment.getContext().rpcCreds(), cloneInfo.getUser(), cloneInfo.getTableId(),
            cloneInfo.getTableName(), permission, cloneInfo.getNamespaceId());
      } catch (ThriftSecurityException e) {
        LoggerFactory.getLogger(ClonePermissions.class).error("{}", e.getMessage(), e);
        throw e;
      }
    }

    // setup permissions in zookeeper before table info in zookeeper
    // this way concurrent users will not get a spurious permission denied
    // error
    try {
      return new CloneZookeeper(cloneInfo, environment.getContext());
    } catch (NamespaceNotFoundException e) {
      throw new AcceptableThriftTableOperationException(null, cloneInfo.getTableName(),
          TableOperation.CLONE, TableOperationExceptionType.NAMESPACE_NOTFOUND,
          "Namespace for target table not found");
    }
  }

  @Override
  public void undo(FateId fateId, Manager environment) throws Exception {
    environment.getContext().getSecurityOperation().deleteTable(environment.getContext().rpcCreds(),
        cloneInfo.getTableId(), cloneInfo.getNamespaceId());
  }
}
