package com.mojang.realmsclient.gui.task;

import com.mojang.logging.LogUtils;
import org.slf4j.Logger;

public interface RepeatedDelayStrategy {
	RepeatedDelayStrategy CONSTANT = new RepeatedDelayStrategy() {
		@Override
		public long delayCyclesAfterSuccess() {
			return 1L;
		}

		@Override
		public long delayCyclesAfterFailure() {
			return 1L;
		}
	};

	long delayCyclesAfterSuccess();

	long delayCyclesAfterFailure();

	static RepeatedDelayStrategy exponentialBackoff(final int maxBackoff) {
		return new RepeatedDelayStrategy() {
			private static final Logger LOGGER = LogUtils.getLogger();
			private int failureCount;

			@Override
			public long delayCyclesAfterSuccess() {
				this.failureCount = 0;
				return 1L;
			}

			@Override
			public long delayCyclesAfterFailure() {
				this.failureCount++;
				long expandedDelay = Math.min(1L << this.failureCount, maxBackoff);
				LOGGER.debug("Skipping for {} extra cycles", expandedDelay);
				return expandedDelay;
			}
		};
	}
}