content: /*
   * LibertyBans
   * Copyright © 2023 Anand Beh
   *
   * LibertyBans is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as
   * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   *
   * LibertyBans is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with LibertyBans. If not, see <https://www.gnu.org/licenses/>
   * and navigate to version 3 of the GNU Affero General Public License.
   */
  
  package space.arim.libertybans.core.service;
  
  import java.time.Duration;
  import java.time.Instant;
  import java.util.concurrent.atomic.AtomicLong;
  
  public final class SettableTimeImpl implements SettableTime {
  
  	private final Instant original;
  	/** Milliseconds from the epoch */
  	private final AtomicLong timestamp;
  
  	public SettableTimeImpl(Instant timestamp) {
  		original = timestamp;
  		this.timestamp = new AtomicLong(timestamp.toEpochMilli());
  	}
  
  	@Override
  	public void setTimestamp(Instant timestamp) {
  		this.timestamp.set(timestamp.toEpochMilli());
  	}
  
  	@Override
  	public void advanceBy(Duration duration) {
  		this.timestamp.getAndAdd(duration.toMillis());
  	}
  
  	@Override
  	public long currentTime() {
  		return timestamp.get() / 1_000L; // seconds
  	}
  
  	@Override
  	public long arbitraryNanoTime() {
  		return timestamp.get() * 1_000_000L; // nanoseconds
  	}
  
  	@Override
  	public void reset() {
  		setTimestamp(original);
  	}
  
  }
  