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

  public class ScrabbleScore : BenchmarkSuiteDataDescriptor {
    private const string name = "Scrabble Score - Hard";
    private const string fileName = "ScrabbleScore.csv";
    private const string description = "Given a string of visible ASCII characters, return the Scrabble score for that string. Each letter has a corresponding value according to normal Scrabble rules, and non-letter characters are worth zero.";

    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; } }

    //vector containing Scrabble values (indexed by ASCII values)
    private static readonly int[] ScrabbleValues = {
      1, // A
      3, // B
      3, // C
      2, // D
      1, // E
      4, // F
      2, // G
      4, // H
      1, // I
      8, // J
      5, // K
      1, // L
      3, // M
      1, // N
      1, // O
      3, // P
     10, // Q
      1, // R
      1, // S
      1, // T
      1, // U
      4, // V
      4, // W
      8, // X
      4, // Y
     10, // Z
    };

    public override ProblemData CreateProblemData() {
      return new ProblemData(ProblemType.ReplaceSpaceWithNewline) {
        Name = Name,
        Description = Description,
        ProgramExecutionBudget = 60000000,
        Examples = CloneExamples(),
        BestResult = 0,
        WorstResult = 1000,
        InputArgumentTypes = new[] { ExampleArgumentType.String },
        OutputArgumentTypes = new[] { ExampleArgumentType.Integer },
        TrainingCount = 200,
        TestCount = 1000,
        EnabledDataTypes = DataTypes.Exec | DataTypes.Integer | DataTypes.Boolean | DataTypes.Char | DataTypes.String | DataTypes.IntegerVector,
        MaxSize = 1000,
        EvalLimit = 2000,
        ErcOptions = {
          ErcProbability = 0.05,
          IntegerErcOptions = new IntegerErcOptions(
            new IntegerConstantErc(ScrabbleValues)),
          IntegerVectorErcOptions = new IntegerVectorErcOptions(
            new IntegerVectorConstantsErc(ScrabbleValues))
        }
      };
    }

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