#include "SingleChoiceQuestion.h"

SingleChoiceQuestion::SingleChoiceQuestion()
{

}

std::istream& SingleChoiceQuestion::read(std::istream& in, bool)
{
	Question::read(in, false);

	std::string choice;
	while ( std::getline(in, choice) && choice.length() > 0 )
		choices.push_back(choice);

	return in;
}

std::ostream& SingleChoiceQuestion::print(std::ostream& out) const
{
	Question::print(out);

	for ( size_t index = 0; index < choices.size(); ++index )
		out << '\t' << index + 1 << ". " << choices[index] << std::endl;

	return out;
}

long SingleChoiceQuestion::ask()
{
	print(std::cout);
	std::cout << "Your answer: ";
	long playerAnswer = 0;
	if ( ! (std::cin >> playerAnswer) )
		return -1;

	return playerAnswer == std::stol(answer);
}