/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_split.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/08/22 18:14:04 by gbaconni          #+#    #+#             */
/*   Updated: 2021/08/26 09:53:30 by gbaconni         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <stdlib.h>
#include <stdio.h>

int	g_t = 0;

static char	*ft_strncpy(char *dest, char *src, unsigned int n)
{
	unsigned int	i;

	i = 0;
	while (i < n && src[i] != '\0')
	{
		dest[i] = src[i];
		i++;
	}
	while (i < n)
	{
		dest[i] = '\0';
		i++;
	}
	dest[i] = '\0';
	return (dest);
}

static int	ft_is_charset(char c, char *charset)
{
	int			i;

	i = 0;
	while (charset[i] != '\0')
	{
		if (c == charset[i])
			return (1);
		i++;
	}
	return (0);
}

static int	ft_split_len(char *str, char *charset)
{
	char	*p_str;
	int		size;

	size = 2;
	if (str == NULL || charset == NULL)
		return (size);
	p_str = str;
	while (*p_str != '\0')
	{
		if (ft_is_charset(*p_str++, charset) == 1)
			size++;
	}
	return (size);
}

char	*ft_copy(char *str, int size)
{
	char	*result;

	result = (char *) malloc((size + 1) * sizeof(char));
	if (!result)
		return (NULL);
	if (size > 0)
		ft_strncpy(result, str, size);
	else
		result[0] = '\0';
	return (result);
}

char	**ft_split(char *str, char *charset)
{
	char	**strs;
	char	*start;
	int		i;

	strs = malloc(ft_split_len(str, charset) * sizeof(strs));
	if (strs == NULL || charset == NULL || str == NULL)
		return (NULL);
	start = str;
	i = 0;
	while (1)
	{
		if (ft_is_charset(*str, charset) == 1 || (*str == '\0' && g_t > 0))
		{
			if (str - start > 0)
				strs[i++] = ft_copy(start, str - start);
			start = str + 1;
		}
		else
			g_t++;
		if (*str == '\0')
			break ;
		str++;
	}
	strs[i] = ft_copy(str, 0);
	return (strs);
}