/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line.c                                    :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: sgusache <sgusache@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2018/12/11 13:19:45 by sgusache          #+#    #+#             */
/*   Updated: 2018/12/17 11:23:21 by sgusache         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line.h"

int     ft_new_line(char **str_fd, char **line, int fd, int bytes)
{
    char    *tmp;
    int     len;

    len = 0;
    while (str_fd[fd][len] != '\n' && str_fd[fd][len] != '\0')
        len++;
    if (str_fd[fd][len] == '\n')
    {
        *line = ft_strsub(str_fd[fd], 0, len);
        tmp = ft_strdup(str_fd[fd] + len + 1);
        free(str_fd[fd]);
        str_fd[fd] = tmp;
        if (str_fd[fd][0] == '\0')
            ft_strdel(&str_fd[fd]);
    }
    else if (str_fd[fd][len] == '\0')
    {
        if (bytes == BUFF_SIZE)
            return (get_next_line(fd, line));
        *line = ft_strdup(str_fd[fd]);
        ft_strdel(&str_fd[fd]);
    }
    return (1);
}

int     get_next_line(const int fd, char **line)
{
    static char *str_fd[256];
    char        buf[BUFF_SIZE + 1];
    char        *tmp;
    int         bytes;

    if (fd < 0 || fd > MAX_FD || line == NULL || BUFF_SIZE < 1)
        return (-1);
    while ((bytes = read(fd, buf, BUFF_SIZE)) > 0)
    {
        buf[bytes] = '\0';
        if (str_fd[fd] == NULL)
            str_fd[fd] = ft_strnew(1);
        tmp = ft_strjoin(str_fd[fd], buf);
        free(str_fd[fd]);
        str_fd[fd] = tmp;
        if (ft_strchr(buf, '\n'))
            break ;
    }
    if (bytes < 0)
        return (-1);
    else if (bytes == 0 && (str_fd[fd] == NULL || str_fd[fd][0] == '\0'))
        return (0);
    return (ft_new_line(str_fd, line, fd, bytes));
}