#include "get_next_line.h"


	//:set noendofline binary
	//https://github.com/lgrellie/gnl_tester
	//https://github.com/Mazoise/42TESTERS-GNL
	//https://github.com/charMstr/GNL_lover
	//https://github.com/mrjvs/42cursus_gnl_tests
	//https://github.com/Sherchryst/gnlkiller
	//https://github.com/Hellio404/Get_Next_Line_Tester
	//https://github.com/TinfoilPancakes/get-next-line-testing-tools

	#include <stdio.h>	//for printf
	#include <fcntl.h>	//for open

	int		main(int ac, char **av)
	{
		int		*fd;
		int		i = 0;
		int		j = 0;
		int		ret;
		char	*line = NULL;

		fd = (int *)malloc(sizeof(int) * ac);
		while (++i <= ac - 1)
			fd[i - 1] = open(av[i], O_RDONLY);
		i = 0;
		while (j < ac - 1)
		{
			if ((ret = get_next_line(fd[i], &line)) > 0)
			{
				printf(" [fd%i-%i] \n", fd[i], ret );
				free(line);
				j = 0;
			}
			else if (ret == -1)
			{
				printf("[fd%i-%i]*ERROR*\n", fd[i], ret);
				free(line);
				j++;
			}
			else if (*line != '\0')
				printf(" [fd%i-%i] \n", fd[i], ret);
			else
			{
				printf("[fd%i-%i]*FINI*\n", fd[i], ret);
				free(line);
				j++;
			}
			i++;
			if (i >= ac - 1)
				i = 0;
		}
		free(fd);
		//while (1);
		return (0);
	}


int		free_lst(t_gnlist **lst, int ret)
{
	t_gnlist	*tmp;
	int			count;

	tmp = *lst;
	count = 0;
	while (tmp != NULL && tmp->next != *lst && tmp->str[0] == '\0')
	{
		count++;
		tmp = tmp->next;
	}
	printf("%i", count);
//	if (ret == -1 || tmp->str == '\0')
//	{
//		while (tmp != NULL)
//		{
//			tmp = (*lst)->next;
//			free((*lst)->str);
//			free(*lst);
//			*lst = NULL;
//			*lst = tmp;
//		}
//	}
	return (ret);
}

int		multi_fd(int fd, t_gnlist **lst)
{
	t_gnlist	*tmp;

	tmp = *lst;
	while (*lst && (*lst)->lfd != fd && (*lst)->next != tmp)
		*lst = (*lst)->next;
	if (!tmp || ((*lst)->next == tmp && (*lst)->lfd != fd))
	{
		if (!(tmp = (t_gnlist*)malloc(sizeof(*tmp))))
			return (0);
		tmp->lfd = fd;
		if (!(tmp->str = ft_strdup("")))
			return (0);
		if (*lst)
		{
			tmp->next = (*lst)->next;
			(*lst)->next = tmp;
		}
		else
			tmp->next = tmp;
		*lst = tmp;
	}
	return (1);
}

int		get_next_line(const int fd, char **line)
{
	char				buf[BUFFER_SIZE + 1];
	int					ret;
	static t_gnlist		*lst = NULL;
	char				*str;

	ret = 1;
	if (!(multi_fd(fd, &lst)) || !line || BUFFER_SIZE < 1)
		return (free_lst(&lst, -1));
	while (!(str = ft_strchr(lst->str, '\n')) && ret != 0)
	{
		if ((ret = read(fd, buf, BUFFER_SIZE)) < 0)
			return (free_lst(&lst, -1));
		buf[ret] = '\0';
		if (!(lst->str = ft_strjoinfree(lst->str, buf)))
			return (free_lst(&lst, -1));
	}
	if (str != NULL)
		str[0] = '\0';
	if (!(*line = ft_strdup(lst->str)))
		return (free_lst(&lst, -1));
	if (str != NULL)
		return(ft_memmove(lst->str, str + 1, ft_strlen(str + 1) + 1) != NULL);
	return (free_lst(&lst, 0));
}