From: Viktor Sinagl <vsinagl@c2r7s6.42prague.com>
Date: Tue, 14 Jan 2025 17:20:39 +0000 (+0100)
Subject: added wrong input err message (file utils.c)
X-Git-Url: https://git.ljiriste.work/?a=commitdiff_plain;h=7428e1c;p=42%2FminiRT.git

added wrong input err message (file utils.c)
---

diff --git a/Libft b/Libft
index 5aafaba..62f583c 160000
--- a/Libft
+++ b/Libft
@@ -1 +1 @@
-Subproject commit 5aafaba628a2eb5bc98021a9b686713966446db1
+Subproject commit 62f583c8ab43754b5265c708243f3f5353ebfa1e
diff --git a/Makefile b/Makefile
index ea2178a..a6836ac 100644
--- a/Makefile
+++ b/Makefile
@@ -25,6 +25,7 @@ SOURCES :=	main.c				\
 			manipulation.c		\
 			parsing.c			\
 			vec3.c				\
+			utils.c				\
 
 SOURCES := $(addprefix $(SRCDIR)/, $(SOURCES))
 
diff --git a/inc/miniRT.h b/inc/miniRT.h
index 34bccb0..8714a6a 100644
--- a/inc/miniRT.h
+++ b/inc/miniRT.h
@@ -160,5 +160,6 @@ void			translate(
 					t_element *element, t_vec3 direction, double distance);
 void			change_radius(t_element *element, double change);
 void			change_height(t_element *element, double change);
+void			print_help(int argc, char **argv);
 
 #endif // MINIRT_H
diff --git a/src/main.c b/src/main.c
index 1f39390..852cfb3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -317,7 +317,7 @@ int	main(int argc, char **argv)
 	set_defaults(&s);
 	if (parse_args(argc, argv, &s))
 	{
-		//print_help();
+		print_help(argc, argv);
 		return (1);
 	}
 	init_session(&s);
diff --git a/src/parsing.c b/src/parsing.c
index 6b957c0..7f05d3a 100644
--- a/src/parsing.c
+++ b/src/parsing.c
@@ -397,7 +397,9 @@ int	parse_args(int argc, char **argv, t_session *s)
 		if (!ft_strcmp(argv[i], "-f"))
 			got_file = 1;
 		if (parse_arg(argv, s, &i))
+		{
 			return (1);
+		}
 		++i;
 	}
 	return (!got_file);
diff --git a/src/utils.c b/src/utils.c
new file mode 100644
index 0000000..4370288
--- /dev/null
+++ b/src/utils.c
@@ -0,0 +1,79 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   parsing.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: ljiriste <ljiriste@student.42prague.com>   +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/11/28 12:34:20 by ljiriste          #+#    #+#             */
+/*   Updated: 2025/01/13 19:54:25 by ljiriste         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "miniRT.h"
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+void	print_msg(char *msg)
+{
+	printf("%s\n", msg);
+	printf("Usage: miniRT [options] [file.rt]\n");
+	printf("Options:\n");
+	printf("\t-w [int] (width) - set the width of the window\n");
+	printf("\t-h [int] (height) - set the height of the window\n");
+}
+
+/*
+Function that check propriete file ending (.rt) and also
+checks if this file exists.
+- use fopen to open file and check if error occurs during
+opening --> file can be open
+*/
+int	check_file(char *filename)
+{
+	int		i;
+	int		fd;
+
+	fd = -1;
+	i = 0;
+	while (filename[i])
+		i++;
+	if ((ft_strlen(filename) < 4) || (filename[i - 1] != 't'
+			|| filename[i - 2] != 'r' || filename[i - 3] != '.'))
+	{
+		printf("Wrong file ending! Please, provide .rt file\n");
+		return (1);
+	}
+	else
+	{
+		fd = open(filename, 0);
+	}
+	if (fd == -1)
+	{
+		printf("Error in opening file.\n");
+		return (1);
+	}
+	close(fd);
+	return (0);
+}
+
+/*
+checks for errors in arguments and provide error message
+*/
+void	print_help(int argc, char **argv)
+{
+	if (argc < 2 || argc % 2 == 0)
+	{
+		print_msg("Wrong number of arguments");
+		return ;
+	}
+	else if (ft_strcmp(argv[argc - 2], "-f"))
+	{
+		print_msg("Provide -f flag for filename\n");
+		return ;
+	}
+	else
+		check_file(argv[argc - 1]);
+	return ;
+}