using HeuristicLab.BioBoost.ProblemDescription;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Encodings.IntegerVectorEncoding;
using HeuristicLab.Encodings.RealVectorEncoding;
using HeuristicLab.Operators;
using HeuristicLab.Optimization;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HeuristicLab.PluginInfrastructure;
using System.Linq;
using HeuristicLab.BioBoost.Representation;

namespace HeuristicLab.BioBoost.SolutionCreation {

  [StorableClass]
  public class BioBoostSolutionCreator : SingleSuccessorOperator, ISolutionCreator {

    #region Parameters
    public ValueLookupParameter<IntMatrix> RegionBoundsParameter {
      get { return (ValueLookupParameter<IntMatrix>) Parameters["RegionBounds"]; }
    } 
    public ValueLookupParameter<IntValue> NRegionsParameter {
      get { return (ValueLookupParameter<IntValue>) Parameters["NRegions"]; }
    } 
    public ConstrainedValueParameter<IRealVectorCreator> RealVectorCreatorParameter {
      get { return (ConstrainedValueParameter<IRealVectorCreator>) Parameters["RealVectorCreator"]; }
    }
    public ConstrainedValueParameter<IIntegerVectorCreator> IntegerVectorCreatorParameter {
      get { return (ConstrainedValueParameter<IIntegerVectorCreator>) Parameters["IntegerVectorCreator"]; }
    }
    public LookupParameter<BioBoostProblemData> ProblemDataParameter {
      get { return (LookupParameter<BioBoostProblemData>) Parameters["ProblemData"]; }
    }
    #endregion

    #region Parameter Values
    public IntMatrix RegionBounds {
      get { return RegionBoundsParameter.ActualValue; }
    }
    public IRealVectorCreator RealVectorCreator {
      get { return RealVectorCreatorParameter.Value; }
      set { RealVectorCreatorParameter.Value = value; }
    }
    public IIntegerVectorCreator IntegerVectorCreator {
      get { return IntegerVectorCreatorParameter.Value; }
      set { IntegerVectorCreatorParameter.Value = value; }
    }
    public BioBoostProblemData ProblemData {
      get { return ProblemDataParameter.ActualValue; }
      set { ProblemDataParameter.ActualValue = value; }
    }
    #endregion

    #region Construction & Cloning
    [StorableConstructor]
    protected BioBoostSolutionCreator(bool isDeserializing) : base(isDeserializing) {}
    protected BioBoostSolutionCreator(BioBoostSolutionCreator orig, Cloner cloner) : base(orig, cloner) {}
    public BioBoostSolutionCreator() {
      Parameters.Add(new ValueLookupParameter<IntMatrix>("RegionBounds", "Limits of valid region ids."));
      Parameters.Add(new ValueLookupParameter<IntValue>("NRegions", "Number of regions."));
      Parameters.Add(new ConstrainedValueParameter<IRealVectorCreator>("RealVectorCreator", "Creator for initial feedstock utilizations."));
      Parameters.Add(new ConstrainedValueParameter<IIntegerVectorCreator>("IntegerVectorCreator", "Creator for transport traget initialization."));
      Parameters.Add(new LookupParameter<BioBoostProblemData>("ProblemData", "The problem data store."));
      RegionBoundsParameter.Hidden = true;
      foreach (var op in ApplicationManager.Manager.GetInstances<IRealVectorCreator>()) {
        op.BoundsParameter.Value = new DoubleMatrix(new double[,] {{0, 1}});
        op.LengthParameter.ActualName = NRegionsParameter.ActualName;
        RealVectorCreatorParameter.ValidValues.Add(op);
      }
      foreach (var op in ApplicationManager.Manager.GetInstances<IIntegerVectorCreator>()) {
        op.BoundsParameter.ActualName = RegionBoundsParameter.ActualName;
        op.LengthParameter.ActualName = NRegionsParameter.ActualName;
        IntegerVectorCreatorParameter.ValidValues.Add(op);
      }
      RealVectorCreatorParameter.Value = RealVectorCreatorParameter.ValidValues.FirstOrDefault(c => c.GetType() == typeof (ConstantValueRealVectorCreator));
      IntegerVectorCreatorParameter.Value = IntegerVectorCreatorParameter.ValidValues.FirstOrDefault( c => c.GetType() == typeof (UniformRandomIntegerVectorCreator));
      ((ConstantValueRealVectorCreator) RealVectorCreator).Value = 0.5;
    }
    public override IDeepCloneable Clone(Cloner cloner) {
      return new BioBoostSolutionCreator(this, cloner);
    }
    #endregion

    public override IOperation Apply() {
      var ops = new OperationCollection(base.Apply());
      foreach (var n in ProblemData.TransportTargets.CheckedItems) {
        var op = (IIntegerVectorCreator)IntegerVectorCreator.Clone();
        op.IntegerVectorParameter.ActualName = LayerDescriptor.TransportTargets.NameWithPrefix(n.Value.Value);
        ops.Add(ExecutionContext.CreateChildOperation(op));
      }
      foreach (var n in ProblemData.Utilizations.CheckedItems) {
        var op = (IRealVectorCreator)RealVectorCreator.Clone();
        op.RealVectorParameter.ActualName = LayerDescriptor.Utilizations.NameWithPrefix(n.Value.Value);
        ops.Add(ExecutionContext.CreateChildOperation(op));
      }
      return ops;
    }

  }
}