/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils.c                              :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/11/21 17:21:38 by dgaillet          #+#    #+#             */
/*   Updated: 2025/11/25 12:55:35 by dgaillet         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line.h"
#include <stdint.h>

int	index_of_nl(char *str, int limit)
{
	int	i;

	if (!str)
		return (-1);
	i = 0;
	while (i < limit && str[i])
	{
		if (str[i] == '\n')
			return (i);
		i++;
	}
	return (-1);
}

size_t	ft_strlen(const char *s)
{
	size_t	i;

	i = 0;
	while (s[i])
		i++;
	return (i);
}

char	*ft_strjoin_new(char const *s1, char const *s2, size_t limit)
{
	char	*str;
	size_t	i;
	size_t	j;

	str = malloc(sizeof(char) * (ft_strlen(s1) + ft_strlen(s2) + 1));
	if (!str)
		return (NULL);
	i = 0;
	j = 0;
	while (s1[i])
	{
		str[i] = s1[i];
		i++;
	}
	while (j <= limit && s2[j])
	{
		str[i + j] = s2[j];
		j++;
	}
	str[i + j] = '\0';
	free((void *) s1);
	return (str);
}

char	*ft_substr(char const *s, unsigned int start, size_t len)
{
	size_t	i;
	char	*sub_str;
	size_t	s_len;

	if (!s)
		return (NULL);
	s_len = ft_strlen(s);
	if (start > s_len)
		len = 0;
	else if (s_len < (start + len))
		len = s_len - start;
	sub_str = malloc(sizeof(char) * (len + 1));
	if (!sub_str)
		return (NULL);
	i = 0;
	while (i < len)
	{
		sub_str[i] = s[start + i];
		i++;
	}
	sub_str[i] = '\0';
	return (sub_str);
}

void	*ft_calloc(size_t nmemb, size_t size)
{
	void	*all_mem;
	size_t	i;

	if (size && nmemb > SIZE_MAX / size)
		return (malloc(0));
	all_mem = malloc(size * nmemb);
	if (!all_mem)
		return (NULL);
	i = 0;
	while (i < nmemb * size)
	{
		((char *)all_mem)[i] = '\0';
		i++;
	}
	return (all_mem);
}