From 4e8b2473bd036561105fa3fc68068b6812e08ba9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= <hugo@lysator.liu.se>
Date: Tue, 5 Feb 2019 11:39:12 +0100
Subject: Add single file mode.

---
 calendar.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 main.c     |  2 +-
 2 files changed, 58 insertions(+), 4 deletions(-)

diff --git a/calendar.c b/calendar.c
index 5ac47f58..8fc4199b 100644
--- a/calendar.c
+++ b/calendar.c
@@ -10,6 +10,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <errno.h>
+#include <unistd.h>
 
 #include "macro.h"
 #include "parse.h"
@@ -36,8 +37,11 @@ int get_extension(const char* filename, char* ext, ssize_t max_len) {
 		: ext_idx;
 }
 
-int read_vcalendar(vcalendar* cal, char* path) {
+/*
+ * TODO merge the code for files and dirs.
+ */
 
+int parse_dir(vcalendar* cal, char* path) {
 	DIR* dir = opendir(path);
 	struct dirent* d;
 	while ((d = readdir(dir)) != NULL) {
@@ -70,11 +74,61 @@ int read_vcalendar(vcalendar* cal, char* path) {
 		parse_file(fname, f, cal);
 
 		fclose(f);
-
-		;
 	}
 
 	closedir(dir);
 
+	return 0;
+}
+
+int read_vcalendar(vcalendar* cal, char* path) {
+
+	struct stat statbuf;
+	if (stat (path, &statbuf) != 0) {
+		fprintf(stderr,
+				"Error opening file or directory, errno = %i\npath = [%s]\n",
+				errno, path);
+	}
+
+	int type  = statbuf.st_mode & 0777000;
+	int chmod = statbuf.st_mode & 0777;
+	printf("file has mode 0%o, with chmod = 0%o\n", type, chmod);
+
+	switch (type) {
+		case S_IFREG:
+			puts("Parsing a single file");
+
+			char ext[10];
+			int has_ext = get_extension(path, ext, 9);
+			if (! has_ext || strcmp(ext, "ics") != 0) {
+				fprintf(stderr, "File doesn't have .ics extension.\n");
+				exit(1);
+			}
+
+			FILE* f = fopen(path, "r");
+			if (f == NULL) {
+				fprintf(stderr, "Error opening file [%s], errno = %i\n",
+						path, errno);
+				exit (1);
+			}
+
+			parse_file(path, f, cal);
+			fclose(f);
+			break;
+
+		case S_IFDIR:
+			puts("Parsing a directory");
+			parse_dir (cal, path);
+			break;
+
+		case S_IFLNK:
+			fputs("Found symlink, can't be bothered to check it further.", stderr);
+			break;
+
+		default:
+			;
+	}
+
+
 	return 0;
 }
diff --git a/main.c b/main.c
index c9fa7fd8..a669f290 100644
--- a/main.c
+++ b/main.c
@@ -24,7 +24,7 @@ int main (int argc, char* argv[argc]) {
 	arg args = { .argc = argc, .argv = argv };
 
 	if (arg_shift(&args) == 0) {
-		puts("Please give vdir as first argument");
+		puts("Please give vdir or a vcalendar file as first argument");
 		exit (1);
 	}
 
-- 
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