stateSpaceDimension.h

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#ifndef MDPSTATESPACEDIMENSION_H
#define MDPSTATESPACEDIMENSION_H

#include <memory>
#include <string>
#include <stdexcept>

namespace Mdp
{
typedef int statePosition_t; //TODO: make this unsigned

class DomainModel;
class StateSpaceBuilder;
class StateSpace;

class StateSpaceDimension
{
friend StateSpace; /*TODO: is this line necessary?*/
friend StateSpaceBuilder;
public:
    virtual ~StateSpaceDimension(){};
    virtual std::string getName()=0;
    virtual statePosition_t getPosition()=0;
    virtual size_t getNumberOfPositions()=0;
    void setIndex(int i);
    int getIndex();
protected:
    template<typename T>
    std::shared_ptr<T> getModel()
    {
        std::shared_ptr<T> model = std::dynamic_pointer_cast<T>(domainModel);
        if (model == nullptr)
            throw std::runtime_error("inconsistent domain model type");
        return model;
    }
    int index;
    std::shared_ptr<DomainModel> domainModel{nullptr};
};






class TestOnlyDimension : public StateSpaceDimension
{
public:
    static constexpr const char *configKey = "FOR TEST PURPOSE ONLY";
public:
    ~TestOnlyDimension(){};
    std::string getName(){return TestOnlyDimension::configKey;};
    statePosition_t getPosition(){return -1;};
    size_t getNumberOfPositions(){return nbPos;};
    void setNumberOfPositions(int n){nbPos = n;};
private:
    size_t nbPos{1};
};




}
#endif