/*
 * 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.iotdb.confignode.procedure.impl.sync;

import org.apache.iotdb.commons.sync.PipeInfo;
import org.apache.iotdb.commons.utils.TestOnly;
import org.apache.iotdb.confignode.procedure.impl.pipe.task.StartPipeProcedureV2;
import org.apache.iotdb.confignode.procedure.store.ProcedureType;

import org.apache.tsfile.utils.ReadWriteIOUtils;

import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.HashSet;
import java.util.Objects;
import java.util.Set;

/**
 * Empty procedure for old sync, restored only for compatibility.
 *
 * @deprecated use {@link StartPipeProcedureV2} instead.
 */
@Deprecated
public class StartPipeProcedure extends AbstractOperatePipeProcedure {

  private String pipeName;
  private PipeInfo pipeInfo;
  private Set<Integer> executedDataNodeIds = new HashSet<>();

  public StartPipeProcedure() {
    super();
  }

  @TestOnly
  public StartPipeProcedure(PipeInfo pipeInfo) {
    this();
    this.pipeName = pipeInfo.getPipeName();
    this.pipeInfo = pipeInfo;
  }

  @Override
  public void serialize(DataOutputStream stream) throws IOException {
    stream.writeShort(ProcedureType.START_PIPE_PROCEDURE.getTypeCode());
    super.serialize(stream);
    ReadWriteIOUtils.write(pipeName, stream);
    ReadWriteIOUtils.write(pipeInfo != null, stream);
    if (pipeInfo != null) {
      pipeInfo.serialize(stream);
    }
    ReadWriteIOUtils.writeIntegerSet(executedDataNodeIds, stream);
  }

  @Override
  public void deserialize(ByteBuffer byteBuffer) {
    super.deserialize(byteBuffer);
    pipeName = ReadWriteIOUtils.readString(byteBuffer);
    if (ReadWriteIOUtils.readBool(byteBuffer)) {
      pipeInfo = PipeInfo.deserializePipeInfo(byteBuffer);
    }
    executedDataNodeIds = ReadWriteIOUtils.readIntegerSet(byteBuffer);
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    StartPipeProcedure that = (StartPipeProcedure) o;
    return Objects.equals(pipeName, that.pipeName)
        && Objects.equals(pipeInfo, that.pipeInfo)
        && Objects.equals(executedDataNodeIds, that.executedDataNodeIds);
  }

  @Override
  public int hashCode() {
    return Objects.hash(pipeName, pipeInfo, executedDataNodeIds);
  }
}
