/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_atoi_base.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/07/19 14:48:20 by cchauvet          #+#    #+#             */
/*   Updated: 2022/07/25 18:52:34 by cchauvet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

int	ft_baser(char *str)
{
	int	i;
	int	j;
	int	count;

	i = -1;
	while (str[++i] != 0)
	{
		count = 0;
		j = 0;
		while (str[j] != 0)
			if (str[i] == str[j++])
				count++;
		if (count > 1 || str[i] == '+' || str[i] == '-')
			return (0);
	}
	if (i == 1)
		return (0);
	return (i);
}

int	ft_find(char *str, char to_find)
{
	int	i;

	i = 0;
	while (str[i] != 0)
	{
		if (str[i] == to_find)
			return (i);
		i++;
	}
	return (-1);
}

int	ft_whitespaces(char *str)
{
	char	*space;
	int		j;
	int		i;

	space = "\n\r\v\t\n ";
	i = 0;
	j = 0;
	while (space[i] != 0)
	{
		while (str[j] == space[i])
		{
			if (str[j] == 0)
				return (j);
			i = 0;
			j++;
		}
		i++;
	}
	return (j);
}

int	ft_atoi_base(char *str, char *base)
{
	int	base_size;
	int	sign;
	int	nbr;
	int	i;

	nbr = 0;
	sign = 1;
	base_size = ft_baser(base);
	if (base == 0)
		return (0);
	i = ft_whitespaces(str);
	while (str[i] == '+' || str[i] == '-')
		if (str[i++] == '-')
			sign = sign * -1;
	while (ft_find(base, str[i]) != -1)
	{
		nbr = nbr * base_size + ft_find(base, str[i]);
		str++;
	}
	return (nbr * sign);
}