namespace HeuristicLab.BenchmarkSuite.Problems {
  using HeuristicLab.Problems.ProgramSynthesis.Base.Erc.Integer;

  public class CollatzNumbers : BenchmarkSuiteDataDescriptor {
    private const string name = "Collatz Numbers - Hard";
    private const string fileName = "CollatzNumbers.csv";
    private const string description = "Given an integer, find the number of terms in the Collatz(hailstone) sequence starting from that integer.";

    protected override string FileName { get { return fileName; } }
    public override string Name { get { return name; } }
    public override string Description { get { return description; } }
    protected override int InputArgumentCount { get { return 1; } }
    protected override int OutputArgumentCount { get { return 1; } }

    public override ProblemData CreateProblemData() {
      return new ProblemData(ProblemType.CollatzNumbers) {
        Name = Name,
        Description = Description,
        ProgramExecutionBudget = 60000000,
        Examples = CloneExamples(),
        BestResult = 0,
        WorstResult = 1000000,
        InputArgumentTypes = new[] { ExampleArgumentType.Integer },
        OutputArgumentTypes = new[] { ExampleArgumentType.Integer },
        TrainingCount = 200,
        TestCount = 2000,
        EnabledDataTypes = DataTypes.Exec | DataTypes.Integer | DataTypes.Float | DataTypes.Boolean,
        MaxSize = 600,
        EvalLimit = 15000,
        ErcOptions = {
          ErcProbability = 0.05,
          IntegerErcOptions = new IntegerErcOptions(
            new IntegerConstantErc(0, 1),
            new IntegerRangeErc(-100, 100))
        }
      };
    }

    protected override Example ParseExample(string[] input, string[] output) {
      return new Example {
        InputArgs = input,
        OutputArgs = output,
        InputInteger = ExampleArgumentConverter.ConvertIntegers(input[0]),
        OutputInteger = ExampleArgumentConverter.ConvertIntegers(output[0]),
      };
    }
  }
}