From 0955921918926a9c51c572f2629ad0a9ca498d9e Mon Sep 17 00:00:00 2001
From: bjoernf <bjoern.foersterling@web.de>
Date: Sat, 16 Sep 2023 12:02:22 +0200
Subject: [PATCH] checked out changes from fix-location-field-bug branch

---
 src/main.c      | 47 +++++++++-------------------------------------
 src/parse_ics.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/parse_ics.h |  3 +++
 3 files changed, 62 insertions(+), 38 deletions(-)
 create mode 100644 src/parse_ics.c
 create mode 100644 src/parse_ics.h

diff --git a/src/main.c b/src/main.c
index f3d5d8f..dcf759a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,6 +1,7 @@
+#include "list_handling.h"
+#include "parse_ics.h"
 #include "cli_arg_parsing.h"
 #include "date_time_handling.h"
-#include "list_handling.h"
 #include "string_handling.h"
 #include "move_lines.h"
 #include "read_until_nl.h"
@@ -16,7 +17,7 @@ int main(int argc, char **argv) {
 	char *ics_path = "";
 	get_cli_args(argc, argv, &ics_path);
 
-	char my_line[4096] = "";
+	char my_event[8192] = "";
 
 	int myfd = open(ics_path, O_RDONLY);
 	if (myfd == -1) {
@@ -33,43 +34,13 @@ int main(int argc, char **argv) {
 	pretty_print_date_time(current_date);
 	printf ("\n\n");
 
-	char start_date[256] = "";
-	char end_date[256] = "";
-	char summary[256] = "";
-
-	while(read_until_nl(myfd, my_line)) {
-		if (strncmp(my_line, "BEGIN:VEVENT", 12) == 0) {
-			memset(my_line, '\0', sizeof(my_line));
-			// put DTSTART into variable
-			seek_string_a(myfd, "DTSTART");
-			read_until_string(myfd, my_line, "DTEND");
-			remove_whitespace(my_line);
-			cut_string(my_line, ':', 1);
-			strcpy(start_date, my_line);
-
-			memset(my_line, '\0', sizeof(my_line));
-
-			// put DTEND into variable
-			read_until_string(myfd, my_line, "SEQUENCE");
-			remove_whitespace(my_line);
-			cut_string(my_line, ':', 1);
-			strcpy(end_date, my_line);
-
-			memset(my_line, '\0', sizeof(my_line));
-
-			// put summary into variable
-			seek_string_a(myfd, "SUMMARY:");
-			read_until_string(myfd, my_line, "TRANSP:");
-			remove_nl_and_cr(my_line);
-			strcpy(summary, my_line);
-			memset(my_line, '\0', sizeof(my_line));
-
-			sorted_insert(&head, start_date, end_date, summary);
-			memset(start_date, '\0', sizeof(start_date));
-			memset(end_date, '\0', sizeof(end_date));
-			memset(summary, '\0', sizeof(summary));
+	while(read_until_nl(myfd, my_event)) {
+		if (strncmp(my_event, "BEGIN:VEVENT", 12) == 0) {
+			memset(my_event, '\0', sizeof(my_event));
+			read_until_string(myfd, my_event, "END:VEVENT");
+			parse_event(my_event, &head);
 		}
-		memset(my_line, '\0', sizeof(my_line));
+		memset(my_event, '\0', sizeof(my_event));
 	}
 
 	print_upcoming(head, current_date);
diff --git a/src/parse_ics.c b/src/parse_ics.c
new file mode 100644
index 0000000..13a4bba
--- /dev/null
+++ b/src/parse_ics.c
@@ -0,0 +1,50 @@
+#include "list_handling.h"
+#include "parse_ics.h"
+#include "string_handling.h"
+#include <stdlib.h>
+#include <string.h>
+
+void parse_event(char event_string[], struct event **head) {
+	char *start_date = strstr(event_string, "\r\nDTSTART;");
+	char *end_date = strstr(event_string, "\r\nDTEND;");
+	char *sequence = strstr(event_string, "\r\nSEQUENCE:");
+	char *summary = strstr(event_string, "\r\nSUMMARY:");
+	char *location = strstr(event_string, "\r\nLOCATION:");
+	char *transp = strstr(event_string, "\r\nTRANSP:");
+
+	char *start_date_str = malloc(256);
+	char *end_date_str = malloc(256);
+	char *summary_str = malloc(512);
+
+	memset(start_date_str, '\0', 256);
+	memset(end_date_str, '\0', 256);
+	memset(summary_str, '\0', 512);
+
+	strncpy(start_date_str, start_date, end_date - start_date);
+
+	strncpy(end_date_str, end_date, sequence - end_date);
+
+	if (location != NULL) {
+		strncpy(summary_str,\
+		summary + strlen("\r\nSUMMARY:"),\
+		location - summary - strlen("\r\nSUMMARY:"));
+	} else {
+		strncpy(summary_str,\
+		summary + strlen("\r\nSUMMARY:"),\
+		transp - summary - strlen("\r\nSUMMARY:"));
+	}
+
+	// parse dates
+	remove_whitespace(start_date_str);
+	cut_string(start_date_str, ':', 1);
+
+	remove_whitespace(end_date_str);
+	cut_string(end_date_str, ':', 1);
+	
+	sorted_insert(head, start_date_str, end_date_str, summary_str);
+
+	free(start_date_str);
+	free(end_date_str);
+	free(summary_str);
+}
+
diff --git a/src/parse_ics.h b/src/parse_ics.h
new file mode 100644
index 0000000..d7cf4f9
--- /dev/null
+++ b/src/parse_ics.h
@@ -0,0 +1,3 @@
+#pragma once
+
+void parse_event(char event_string[], struct event **head);