/**
 * @file
 * Copyright 2015 (c) Anna Schumaker.
 */
#include <core/string.h>
#include <sstream>

#define O_MINUTES (60)
#define O_HOURS   (60 * O_MINUTES)
#define O_DAYS    (24 * O_HOURS)

const std::string string :: utos(unsigned int u)
{
	std::stringstream ss;
	ss << u;
	return ss.str();
}

const std::string string :: sec2str(unsigned int sec)
{
	std::stringstream ss;
	unsigned int minutes = sec / 60;
	unsigned int seconds = sec % 60;

	ss << minutes << ":";
	if (seconds < 10)
		ss << "0";
	ss << seconds;
	return ss.str();
}

const std::string _time_detail(unsigned int value, unsigned int remaining,
				const std::string &field)
{
	std::string res;

	if (value > 0) {
		res += string :: utos(value) + " " + field;
		if (value > 1)
			res += "s";
		if (remaining > 0)
			res += ", ";
	}
	return res;
}

const std::string string :: sec2str_detailed(unsigned int sec)
{
	std::string res;
	unsigned int factor[3] = { O_DAYS, O_HOURS, O_MINUTES };
	std::string   field[3] = { "day",  "hour",  "minute" };
	unsigned int val;

	for (unsigned int i = 0; i < 3; i++) {
		val  = sec / factor[i];
		sec %= factor[i];
		res += _time_detail(val, sec, field[i]);
	}

	res += _time_detail(sec, 0, "second");
	return res;
}