/*
 * Copyright contributors to Besu.
 *
 * Licensed 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
package org.hyperledger.besu.ethereum.p2p.discovery.internal.packet.validation;

import static com.google.common.base.Preconditions.checkArgument;

import java.time.Clock;
import javax.inject.Inject;
import javax.inject.Singleton;

@Singleton
public class ExpiryValidator {
  private final Clock clock;

  public @Inject ExpiryValidator(final Clock clock) {
    this.clock = clock;
  }

  public void validate(final long expiry) {
    checkArgument(expiry >= 0, "expiration cannot be negative");
    checkArgument(expiry >= clock.instant().getEpochSecond(), "expiration cannot be in the past");
  }
}
