#include "Fixed.hpp"

/*
 * functions to print numbers in binary
 * for the float, found help from stackoverflow :
 * https://stackoverflow.com/questions/474007/floating-point-to-binary-valuec
 */

std::string printBitsInt(int num)
{
	int i = 0;

	std::cout << "  ";
	for (unsigned int mask = 1U << (sizeof(int) *8 -1); mask; mask >>= 1)
	{
		std::cout << ((num & mask) != 0);
		i++;
//		if (i % 8 == 0 && i < 32)
		if (i == 1 || i == 9 || i == 24)
			std::cout << ' ';
	}
	return "";
}

std::string	printBitsFloat(float num)
{
	int	*p = (int *)&num;
	int i = 0;

	for (unsigned int mask = 1U << (sizeof(float) *8 -1); mask; mask >>= 1)
	{
		std::cout << ((*p & mask) != 0);
		i++;
		if (i == 1 || i == 9)
			std::cout << ' ';
	}
	return "";
}

/*
 * statics variables initialisation
 *
 * for MAX integer :
 * 00000000 01111111 11111111 11111111 ( 8388607) (-1U >> (this->_frac +1))
 *              <= ... >=
 * 11111111 10000000 00000000 00000000 (-8388608)
 *
 */

int const Fixed::_frac = 8;
int const Fixed::_max = -1U >> (_frac +1);

/*
 * default constructor / copy constructor / destructor
 */

Fixed::Fixed() : _value(0) {
//	std::cout << "Default constructor called" << '\n';
	return;
}

Fixed::Fixed(Fixed const & src) {
//	std::cout << "Copy constructor called" << '\n';
	*this = src;
	return;
}

Fixed::~Fixed( void ) {
//	std::cout << "Destructor called" << '\n';
	return;
}

/*
 * int and float constructors
 */

Fixed::Fixed(int integer) {
//	std::cout << "Int constructor called" << '\n';

	if (integer < ~this->_max || integer > this->_max)
	{
		std::cout << "error: integer out of range" << '\n';
		return;
	}
	std::cout << "integer : " << printBitsInt(integer) << " (" << integer << ")\n";
	this->_value = integer << this->_frac;
}

Fixed::Fixed(float const floater) {
//	std::cout << "Float constructor called" << '\n';

	if (floater < ~this->_max || floater > this->_max)
	{
		std::cout << "error: float out of range" << '\n';
		return;
	}
	std::cout << "floater : " << printBitsFloat(floater) << " (" << floater << ")\n";

}

/*
 * assignement operator
 */

Fixed &	Fixed::operator=( Fixed const & rhs ) {
//	std::cout << "Copy assignment operator called" << '\n';
	if ( this != &rhs )
		this->_value = rhs.getRawBits();

	return *this;
}

/*
 * other functions
 */

int		Fixed::getRawBits( void ) const {
//	std::cout << "getRawBits member function called" << '\n';
	return this->_value;
}

void	Fixed::setRawBits( int const raw ) {
	this->_value = raw;
}

void	Fixed::toFloat( void ) const {}
int		Fixed::toInt( void ) const {
	return 0;
}