/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   fdf_parsing.c                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/02/22 09:16:28 by narnaud           #+#    #+#             */
/*   Updated: 2022/02/24 13:47:26 by narnaud          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "fdf.h"

/* Function : parse_line
 * ---------------------
 *  map :
 *  p :
 *  splitted
 */

void	parse_line(t_map *map, t_2di p, char ***splited)
{
	p.x = 0;
	map->altitude[p.y] = ft_calloc(p.len, sizeof(int));
	while ((*splited)[p.x])
	{
		map->altitude[p.y][p.x] = ft_atoi((*splited)[p.x]);
		if (abs(map->altitude[p.y][p.x]) > abs(map->hightest))
			map->hightest = abs(map->altitude[p.y][p.x]);
		free((*splited)[p.x]);
		p.x++;
	}
	if (map->hightest == 0)
		map->hightest = 1;
	free((*splited));
}

/* Function : parse_file
 * ---------------------
 *  fd :
 *  line :
 *  splited :
 */

t_map	*parse_file(int fd, t_map *map)
{
	t_2di		p;
	char		*line;
	char		**splited;

	map->hightest = 0;
	p.x = 0;
	line = get_next_line(fd);
	splited = ft_split(line, ' ');
	free(line);
	while (splited[p.x])
		p.x++;
	p.len = p.x;
	p.y = 0;
	while (splited)
	{
		parse_line(map, p, &(splited));
		line = get_next_line(fd);
		splited = ft_split(line, ' ');
		free(line);
		p.y++;
	}
	map->width = p.x;
	map->depth = p.y;
	close(fd);
	return (map);
}

/* Function : get_file_ext
 * --------------------------
 *	fd : file_descriptor
 *	return file extension
 */

const char	*get_file_ext(const char *filename)
{
	int	i;

	i = 0;
	while (filename[i])
		i++;
	while (filename[--i])
		if (filename[i] == '.')
			return (filename + i + 1);
	return (NULL);
}