namespace HeuristicLab.Tests.Benchmark {
  using System;
  using System.Linq;
  using BenchmarkSuite;

  using HeuristicLab.BenchmarkSuite.Problems;
  using HeuristicLab.Problems.ProgramSynthesis;

  using Microsoft.VisualStudio.TestTools.UnitTesting;
  using Random;

  [TestClass]
  public class RandomWalkTests {
    private static void RandomWalk(BenchmarkSuiteDataDescriptor descriptor) {
      var instance = new BenchmarkSuiteInstanceProvider();
      var data = instance.LoadData(descriptor);
      var evaluator = new PushBenchmarkSuiteEvaluator(data);

      var config = new PushConfiguration {
        EvalPushLimit = data.EvalLimit,
        MaxProgramLength = data.MaxSize,
        ErcOptions = data.ErcOptions,
      };

      config.SetEnabledStacks((StackTypes)data.EnabledDataTypes);

      var pool = new PushInterpreterPool(config);
      var best = Enumerable
        .Range(0, 10)
        .AsParallel()
        .Select(_ => {
          var random = new MersenneTwister(1337);
          var program = LinearCodeGenerator.RandomProgram(data.MaxSize, random, config);
          var result = evaluator.EvaluateTraining(pool, program, random);

          return new {
            Quality = result.AvgQuality,
            Program = program
          };
        })
        .OrderBy(x => x.Quality)
        .First();

      Console.WriteLine("Training: {0}", best.Quality);
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void Checksum() {
      RandomWalk(new Checksum());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void CollatzNumbers() {
      RandomWalk(new CollatzNumbers());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void CompareStringLengths() {
      RandomWalk(new CompareStringLengths());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void CountOdds() {
      RandomWalk(new CountOdds());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void Digits() {
      RandomWalk(new Digits());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void DoubleLetters() {
      RandomWalk(new DoubleLetters());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void EvenSquares() {
      RandomWalk(new EvenSquares());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void ForLoopIndex() {
      RandomWalk(new ForLoopIndex());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void Grades() {
      RandomWalk(new Grades());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void LastIndexOfZero() {
      RandomWalk(new LastIndexOfZero());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void Median() {
      RandomWalk(new Median());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void MirrorImage() {
      RandomWalk(new MirrorImage());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void NegativeToZero() {
      RandomWalk(new NegativeToZero());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void NumberIo() {
      RandomWalk(new NumberIO());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void PigLatin() {
      RandomWalk(new PigLatin());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void ReplaceSpaceWithNewLine() {
      RandomWalk(new ReplaceSpaceWithNewline());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void ScrabbleScore() {
      RandomWalk(new ScrabbleScore());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void Smallest() {
      RandomWalk(new Smallest());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void SmallOrLarge() {
      RandomWalk(new SmallOrLarge());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void StringDifferences() {
      RandomWalk(new StringDifferences());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void StringLengthsBackwards() {
      RandomWalk(new StringLengthsBackwards());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void SumOfSquares() {
      RandomWalk(new SumOfSquares());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void SuperAnagrams() {
      RandomWalk(new SuperAnagrams());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void Syllables() {
      RandomWalk(new Syllables());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void VectorAverage() {
      RandomWalk(new VectorAverage());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void VectorSummed() {
      RandomWalk(new VectorSummed());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void WallisPi() {
      RandomWalk(new WallisPi());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void WordStats() {
      RandomWalk(new WordStats());
    }

    [TestMethod]
    [TestProperty("Time", "Medium")]
    [TestCategory("ProblemTest")]
    public void XWordLines() {
      RandomWalk(new XWordLines());
    }
  }
}