#ifndef QUESTION_H
#define QUESTION_H

#include <iostream>
#include <string>

// Question is an abstract class because it has a least one pure virtual method
class Question
{
  protected:
	std::string text;
	std::string answer;

  public:
	Question();
	virtual ~Question() { }
	virtual std::istream& read(std::istream& in, bool discardEmptyLine = true);
	friend inline std::istream& operator>>(std::istream& in, Question& question)
	{
		//return question.vtable[1](in);
		return question.read(in);
	}
	virtual std::ostream& ask(std::ostream& out) const;
	friend inline std::ostream& operator<<(std::ostream& out, const Question& question)
	{
		return question.ask(out);
	}
	virtual bool isRightAnswer(const std::string& playerAnswer) const = 0; // pure virtual method
	int getScore() const { return 10; }
};

#endif // QUESTION_H