#include "Span.hpp"

Span::Span() {
	N = 0;
}

Span::Span(unsigned int N) : N(N) {

}

Span::Span(const Span &span) {
	*this = span;
}

Span::~Span() {

}

Span &Span::operator=(const Span &span) {
	if (this != &span) {
		this->N = span.N;
		this->list = span.list;
	}
	return *this;
}

void Span::addNumber(int nbr) {
	if (list.size() + 1 > N)
		throw std::out_of_range("Out of Range");
	list.push_back(nbr);
}

unsigned int Span::shortestSpan() const {
	if (list.size() < 2)
		throw std::exception();
	unsigned int min = longestSpan();
	for (std::list<int>::const_iterator it0 = list.begin(); it0 != list.end(); it0++) {
		for (std::list<int>::const_iterator it1 = list.begin(); it1 != list.end(); it1++) {
			if (it0 != it1)
				if ((long)std::abs(*it0 - *it1) < (long)min)
					min = std::abs(*it0 - *it1);
		}
	}
	return min;
}

unsigned int Span::longestSpan() const {
	if (list.size() < 2)
		throw std::exception();
	return (*std::max_element(list.begin(), list.end()) - *std::min_element(list.begin(), list.end()));
}