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// Copyright 2015-2024 Nstream, inc.
//
// Licensed under the Redis Source Available License 2.0 (RSALv2) Agreement;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://redis.com/legal/rsalv2-agreement/
//
// 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 nstream.reflect.agent;

import nstream.reflect.MetaLane;
import nstream.reflect.MetaNode;
import nstream.reflect.model.LaneStats;
import swim.uri.Uri;

public class MetaLaneAgent extends MetaCellAgent {
  final MetaLane meta;
  protected final LaneStats laneTotal;
  protected final LaneStats laneDelta;

  public MetaLaneAgent(MetaLane meta) {
    this.meta = meta;
    this.laneTotal = new LaneStats(null, linkTotal);
    this.laneDelta = new LaneStats(null, linkDelta);
  }

  @Override
  public MetaLane meta() {
    return this.meta;
  }

  public void didSetLaneUri(Uri laneUri) {
    this.laneTotal.laneUri = laneUri;
    this.laneDelta.laneUri = laneUri;
  }

  public void didOpenLane() {
    this.laneTotal.didOpenLane();
    this.laneDelta.didOpenLane();
    didUpdateStats();
  }

  public void didCloseLane() {
    this.laneTotal.didCloseLane();
    this.laneDelta.didCloseLane();
    didUpdateStats();
  }

  public LaneStats laneStats() {
    return this.laneTotal.get();
  }

  @Override
  public void bubbleStats() {
    bubbleLaneStats();
  }

  protected void bubbleLaneStats() {
    final MetaNode metaParent = this.meta.metaParent();
    if (metaParent != null) {
      final MetaNodeAgent parentAgent = metaParent.metaAgent();
      parentAgent.accumulateLaneStats(this.laneDelta.getAndReset());
    }
  }
}