#include "convert.h"

void	fromFloat(float value) {
	// char
	std::cout << std::setw(7) << std::left << "char";
	if (value < 0 || value > std::numeric_limits<char>::max())
		std::cout << B_RED << "impossible" << RESET "\n";
	else if (!isprint(value))
		std::cout << B_RED << "non displayable" << RESET "\n";
	else
		std::cout << B_CYAN << static_cast<char>(value) << RESET "\n";

	// int
	std::cout << std::setw(7) << std::left << "int";
	if (value < std::numeric_limits<int>::min()
	 || value > std::numeric_limits<int>::max() )
		std::cout << B_RED << "impossible" << RESET "\n";
	else
		std::cout << B_CYAN << static_cast<int>(value) << RESET "\n";
	
	// double
	std::cout << std::setw(7) << std::left << "double";
	std::cout << B_CYAN << static_cast<double>(value) << RESET "\n";
}

bool	isFloat(std::string str) {
	size_t		l;
	size_t		l2;

	if (str[0] == '+' || str[0] == '-')
		str.erase(str.begin());
	if (str.length() == 0)
		return false;
	if (!str.compare("inff") || !str.compare("nanf"))
		return true;
	l = str.find_first_not_of("0123456789");
	if (l == std::string::npos || str[l] != '.' || l > FLOAT_MAX_LENGTH)
		return false;
	l2 = str.find_first_not_of("0123456789", l + 1);
	if (l2 == std::string::npos || l2 != str.length() - 1 || str[l2] != 'f')
		return false;
	if (l < FLOAT_MAX_LENGTH)
		return true;
	if (str.compare(0, l, MAX_FLOAT) > 0)
		return false;

	return true;
}

bool	checkFloat(std::string str) {
	float	f;

	if (!isFloat(str))
		return false;

	std::istringstream(str) >> f;
	std::cout << B_CYAN << f << B_YELLOW " float" RESET "\n";
	fromFloat(f);

	return true;
}