/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ScalarConverter.cpp                                   :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: aortigos <aortigos@student.42malaga.com>    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2026/02/28 20:03:23 by aortigos          #+#    #+#             */
/*   Updated: 2026/02/28 20:03:23 by aortigos         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "ScalarConverter.hpp"

//////////////////
// Constructors //
//////////////////

ScalarConverter::ScalarConverter()
{
    // std::cout << "ScalarConverter default constructor called" << std::endl;
}

ScalarConverter::ScalarConverter(const ScalarConverter &other)
{
    *this = other;
    // std::cout << "ScalarConverter copy constructor called" << std::endl;
}

ScalarConverter& ScalarConverter::operator=(const ScalarConverter &other)
{
    if (this != &other)
    {
        // Copy attributes here
    }
    // std::cout << "ScalarConverter copy assignment operator called" << std::endl;
    return (*this);
}

ScalarConverter::~ScalarConverter()
{
    // std::cout << "ScalarConverter destructor called" << std::endl;
}

// Main function
void    ScalarConverter::convert(const std::string &literal)
{
	if (isSpecialCase(literal))
		convertFromSpecialCase(literal);
    else if (isChar(literal))
        convertFromChar(literal);
	else if(isFloat(literal))
		convertFromFloat(literal);
	else if(isDouble(literal))
		convertFromDouble(literal);
	else if (isInt(literal))
		convertFromInt(literal);
    else
        std::cout << "Error: invalid literal" << std::endl;
}

// Checkers

bool	ScalarConverter::isSpecialCase(const std::string &literal)
{
    if (literal == "-inf" || literal == "+inf" || literal == "nan"
		|| literal == "-inff" || literal == "+inff" || literal == "nanf")
		return (true);
	return (false);
}

bool	ScalarConverter::isChar(const std::string &literal)
{
    char    c;

	if (literal.length() != 3)
		return (false);
    c = literal[1];
    if (literal[0] == '\'' && literal[2] == '\''
        && (c >= 32 && c < 127))
    {
        return (true);
    }
    return (false);
}

bool	ScalarConverter::isInt(const std::string &literal)
{
	char	*end;
	long	nb;

	nb = strtol(literal.c_str(), &end, 10);
	if (*end != '\0')
		return (false);
	if (nb > INT_MAX || nb < INT_MIN)
		return (false);
	return (true);
}

bool	ScalarConverter::isDouble(const std::string &literal)
{
	char	*end;

	if (literal.find('.') == std::string::npos)
		return (false);
	strtod(literal.c_str(), &end);
	if (*end != '\0')
		return (false);
	return (true);
}

bool	ScalarConverter::isFloat(const std::string &literal)
{
	if (literal[literal.length() - 1] != 'f')
		return (false);

	std::string withoutF = literal.substr(0, literal.length() - 1);
	return isDouble(withoutF);
}

// Converters

void	ScalarConverter::convertFromSpecialCase(const std::string &literal)
{
	std::cout << "char: impossible" << std::endl;
	std::cout << "int: impossible" << std::endl;
	if (literal == "nanf" || literal == "+inff" || literal == "-inff")
	{
		std::cout << "float: " << literal << std::endl;
		std::cout << "double: " << literal.substr(0, literal.length() - 1) << std::endl;
	} else {
		std::cout << "float: " << literal << "f" << std::endl;
		std::cout << "double: " << literal << std::endl;
	}
}

void	ScalarConverter::convertFromChar(const std::string &literal)
{
	char	c;

	c = literal[1];
	std::cout << "char: '" << c << "'" << std::endl;
	std::cout << "int: " << static_cast<int>(c) << std::endl;
	std::cout << std::fixed << std::setprecision(1);
	std::cout << "float: " << static_cast<float>(c) << "f" << std::endl;
	std::cout << "double: " << static_cast<double>(c) << std::endl;
}

void	ScalarConverter::convertFromInt(const std::string &literal)
{
	int		nb;
	char	*end;

	nb = static_cast<int>(std::strtol(literal.c_str(), &end, 10));
	if (nb < 0 || nb > 127)
		std::cout << "char: impossible" << std::endl;
	else if (nb < 32 || nb == 127)
		std::cout << "char: Non displayable" << std::endl;
	else
		std::cout << "char: '" << static_cast<char>(nb) << "'" << std::endl;
	std::cout << "int: " << nb << std::endl;
	std::cout << std::fixed << std::setprecision(1);
	std::cout << "float: " << static_cast<float>(nb) << "f" << std::endl;
	std::cout << "double: " << static_cast<double>(nb) << std::endl;
}

void	ScalarConverter::convertFromFloat(const std::string &literal)
{
	float	nb;
	char	*end;

	nb = std::strtof(literal.c_str(), &end);
	if (nb < 0 || nb > 127)
		std::cout << "char: impossible" << std::endl;
	else if (nb < 32 || nb == 127)
		std::cout << "char: Non displayable" << std::endl;
	else
		std::cout << "char: '" << static_cast<char>(nb) << "'" << std::endl;
	std::cout << "int: " << static_cast<int>(nb) << std::endl;
	std::cout << std::fixed << std::setprecision(1);
	std::cout << "float: " << nb << "f" << std::endl;
	std::cout << "double: " << static_cast<double>(nb) << std::endl;
}

void	ScalarConverter::convertFromDouble(const std::string &literal)
{
	double	nb;
	char	*end;

	nb = std::strtod(literal.c_str(), &end);
	if (nb < 0 || nb > 127)
		std::cout << "char: impossible" << std::endl;
	else if (nb < 32 || nb == 127)
		std::cout << "char: Non displayable" << std::endl;
	else
		std::cout << "char: '" << static_cast<char>(nb) << "'" << std::endl;
	std::cout << "int: " << static_cast<int>(nb) << std::endl;
	std::cout << std::fixed << std::setprecision(1);
	std::cout << "float: " << static_cast<float>(nb) << "f" << std::endl;
	std::cout << "double: " << nb << std::endl;
}