/*
 * 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.texera.amber.engine.architecture.controller

import org.apache.texera.amber.core.virtualidentity.ActorVirtualIdentity

import scala.collection.mutable

class GlobalReplayManager(onRecoveryStart: () => Unit, onRecoveryComplete: () => Unit) {
  private val recovering = mutable.HashSet[ActorVirtualIdentity]()

  def markRecoveryStatus(vid: ActorVirtualIdentity, isRecovering: Boolean): Unit = {
    val globalRecovering = recovering.nonEmpty
    if (isRecovering) {
      recovering.add(vid)
    } else {
      recovering.remove(vid)
    }
    if (!globalRecovering && recovering.nonEmpty) {
      onRecoveryStart()
    }
    if (globalRecovering && recovering.isEmpty) {
      onRecoveryComplete()
    }
  }
}
