/*
 * 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.db.pipe.sink.client;

import org.apache.iotdb.common.rpc.thrift.TEndPoint;
import org.apache.iotdb.commons.conf.CommonDescriptor;
import org.apache.iotdb.commons.pipe.sink.client.IoTDBSyncClient;
import org.apache.iotdb.commons.pipe.sink.client.IoTDBSyncClientManager;
import org.apache.iotdb.commons.pipe.sink.payload.thrift.request.PipeTransferHandshakeV2Req;
import org.apache.iotdb.db.conf.IoTDBDescriptor;
import org.apache.iotdb.db.pipe.sink.payload.evolvable.request.PipeTransferDataNodeHandshakeV1Req;
import org.apache.iotdb.db.pipe.sink.payload.evolvable.request.PipeTransferDataNodeHandshakeV2Req;

import org.apache.tsfile.utils.Pair;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.List;
import java.util.Map;

public class IoTDBDataNodeSyncClientManager extends IoTDBSyncClientManager
    implements IoTDBDataNodeCacheLeaderClientManager {

  private static final Logger LOGGER =
      LoggerFactory.getLogger(IoTDBDataNodeSyncClientManager.class);

  public IoTDBDataNodeSyncClientManager(
      final List<TEndPoint> endPoints,
      final String username,
      final String password,
      final boolean useSSL,
      final String trustStorePath,
      final String trustStorePwd,
      final boolean useLeaderCache,
      final String loadBalanceStrategy,
      final boolean shouldReceiverConvertOnTypeMismatch,
      final String loadTsFileStrategy,
      final boolean validateTsFile,
      final boolean shouldMarkAsPipeRequest) {
    super(
        endPoints,
        username,
        password,
        useSSL,
        trustStorePath,
        trustStorePwd,
        useLeaderCache,
        loadBalanceStrategy,
        shouldReceiverConvertOnTypeMismatch,
        loadTsFileStrategy,
        validateTsFile,
        shouldMarkAsPipeRequest);
  }

  @Override
  protected PipeTransferDataNodeHandshakeV1Req buildHandshakeV1Req() throws IOException {
    return PipeTransferDataNodeHandshakeV1Req.toTPipeTransferReq(
        CommonDescriptor.getInstance().getConfig().getTimestampPrecision());
  }

  @Override
  protected PipeTransferHandshakeV2Req buildHandshakeV2Req(final Map<String, String> params)
      throws IOException {
    return PipeTransferDataNodeHandshakeV2Req.toTPipeTransferReq(params);
  }

  @Override
  protected String getClusterId() {
    return IoTDBDescriptor.getInstance().getConfig().getClusterId();
  }

  public Pair<IoTDBSyncClient, Boolean> getClient(final String deviceId) {
    final TEndPoint endPoint = LEADER_CACHE_MANAGER.getLeaderEndPoint(deviceId);
    return useLeaderCache
            && endPoint != null
            && endPoint2ClientAndStatus.containsKey(endPoint)
            && Boolean.TRUE.equals(endPoint2ClientAndStatus.get(endPoint).getRight())
            && endPoint2ClientAndStatus.get(endPoint).getLeft() != null
        ? endPoint2ClientAndStatus.get(endPoint)
        : getClient();
  }

  public Pair<IoTDBSyncClient, Boolean> getClient(final TEndPoint endPoint) {
    return useLeaderCache
            && endPoint != null
            && endPoint2ClientAndStatus.containsKey(endPoint)
            && Boolean.TRUE.equals(endPoint2ClientAndStatus.get(endPoint).getRight())
            && endPoint2ClientAndStatus.get(endPoint).getLeft() != null
        ? endPoint2ClientAndStatus.get(endPoint)
        : getClient();
  }

  public void updateLeaderCache(final String deviceId, final TEndPoint endPoint) {
    if (!useLeaderCache || deviceId == null || endPoint == null) {
      return;
    }

    try {
      if (!endPoint2ClientAndStatus.containsKey(endPoint)) {
        endPointList.add(endPoint);
        endPoint2ClientAndStatus.put(endPoint, new Pair<>(null, false));
        reconstructClient(endPoint);
      }

      LEADER_CACHE_MANAGER.updateLeaderEndPoint(deviceId, endPoint);
    } catch (final Exception e) {
      LOGGER.warn(
          "Failed to update leader cache for device {} with endpoint {}:{}.",
          deviceId,
          endPoint.getIp(),
          endPoint.getPort(),
          e);
    }
  }
}
