/*
 * Copyright 2019 ConsenSys AG.
 *
 * 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.
 */

package tech.pegasys.teku.util.bench;

import java.util.concurrent.TimeUnit;
import org.apache.tuweni.bytes.Bytes;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.infra.Blackhole;
import tech.pegasys.teku.util.hashToG2.HashToCurve;
import tech.pegasys.teku.util.mikuli.G2Point;

@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@State(Scope.Benchmark)
@Fork(value = 1)
@Warmup(iterations = 2, time = 10)
@Measurement(iterations = 8, time = 10)
public class BenchBLS {

  private Bytes message;
  private Bytes suite = Bytes.fromHexString("0x02");

  @Setup
  public void setup() {
    message = Bytes.random(32);
  }

  @Benchmark
  public void hashToCurve(Blackhole blackhole) {
    G2Point result = new G2Point(HashToCurve.hashToG2(message, suite));
    blackhole.consume(result);
  }
}