#include <PmergeMe.hpp>
#include <cstdlib>
#include <iomanip>
#include <iostream>
#include <limits>
#include <sstream>
#include <string>

int main(int argc, char* argv[]) {
	if (argc < 2) {
		std::cerr << "Usage: " << argv[0] << " <positive integers...>" << std::endl;
		return 1;
	}

	std::cout << std::fixed << std::setprecision(5);

	std::vector<int> vector;
	try {
		if (argc == 2) {
			std::string input = argv[1];
			std::istringstream inputStream(input);
			std::string string;
			while (inputStream >> string) {
				for (size_t i = 0; i < string.size(); ++i)
					if (!std::isdigit(static_cast<unsigned char>(string[i])))
						throw std::runtime_error("Error: not a number");

				long number = std::strtol(string.c_str(), NULL, 10);

				if (number < 0)
					throw std::runtime_error("Error: negative number");

				if (number > std::numeric_limits<int>::max())
					throw std::runtime_error("Error: too large");

				vector.push_back(static_cast<int>(number));
			}
		} else {
			for (int i = 1; i < argc; ++i) {
				for (size_t j = 0; argv[i][j] != '\0'; ++j)
					if (!std::isdigit(static_cast<unsigned char>(argv[i][j])))
						throw std::runtime_error("Error: not a number");

				long int number = std::strtol(argv[i], NULL, 10);

				if (number < 0)
					throw std::runtime_error("Error: negative number");

				if (number > std::numeric_limits<int>::max())
					throw std::runtime_error("Error: too large");

				vector.push_back(static_cast<int>(number));
			}
		}
	} catch (const std::exception& exception) {
		std::cerr << exception.what() << std::endl;
		return EXIT_FAILURE;
	}
	std::deque<int> deque(vector.begin(), vector.end());

	PmergeMe::sort(vector, deque);
}