package net.minecraft.util;

import java.util.concurrent.TimeUnit;
import java.util.function.LongSupplier;

@FunctionalInterface
public interface TimeSource {
	long get(TimeUnit timeUnit);

	static TimeSource.NanoTimeSource constant(final long value) {
		return () -> value;
	}

	interface NanoTimeSource extends LongSupplier, TimeSource {
		@Override
		default long get(final TimeUnit timeUnit) {
			return timeUnit.convert(this.getAsLong(), TimeUnit.NANOSECONDS);
		}
	}
}