From afdc8945685cfcefce653bcd5bb0c82166c5a7c3 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Sat, 22 Jun 2024 10:03:57 +0200
Subject: [PATCH] add method for overtime hours

---
 src/time_format.c         | 16 ++++++++++++++
 src/time_format.h         |  3 ++-
 tests/time_format_tests.c | 45 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+), 1 deletion(-)

diff --git a/src/time_format.c b/src/time_format.c
index e8eccc0..1a6d060 100644
--- a/src/time_format.c
+++ b/src/time_format.c
@@ -20,6 +20,22 @@ void get_time_str(time_t timediff, char* timestr)
 	sprintf(timestr, "%02d:%02d", hour, minutes);
 }
 
+void get_time_str_overtime(time_t timediff, char* timestr)
+{
+	int hour = timediff / ONE_HOUR;
+	int rest_minutes = timediff % ONE_HOUR;
+	int minutes = rest_minutes / MINUTE;
+
+	if (timediff < 0) {
+		hour *= -1;
+		minutes *= -1;
+		sprintf(timestr, "%02d:%02d", hour, minutes);
+		return;
+	}
+
+	sprintf(timestr, "-%02d:%02d", hour, minutes);
+}
+
 void get_weekday(int wday, char* weekday)
 {
 	switch (wday) {
diff --git a/src/time_format.h b/src/time_format.h
index d4e53ec..8dcaa02 100644
--- a/src/time_format.h
+++ b/src/time_format.h
@@ -2,7 +2,8 @@
 #define TIME_FORMAT_H
 #include <time.h>
 
-void get_time_str(time_t time, char* timestr);
+void get_time_str(time_t timediff, char* timestr);
+void get_time_str_overtime(time_t timediff, char* timestr);
 void get_weekday(int wday, char* weekday);
 void get_short_weekday(int wday, char* weekday);
 
diff --git a/tests/time_format_tests.c b/tests/time_format_tests.c
index 1dee4cf..17ef589 100644
--- a/tests/time_format_tests.c
+++ b/tests/time_format_tests.c
@@ -49,6 +49,48 @@ void get_minus_five_minutes()
 	timestring = NULL;
 }
 
+void get_zero_hour_and_fifteen_minutes_overtime()
+{
+	time_t time = 900;
+	char* timestring = malloc(sizeof(char) * 7);
+	memset(timestring, 0, 7);
+
+	get_time_str_overtime(time, timestring);
+
+	assert_string_equal(timestring, "-00:15");
+
+	free(timestring);
+	timestring = NULL;
+}
+
+void get_five_hour_fourty_five_overtime()
+{
+	time_t time = 20700;
+	char* timestring = malloc(sizeof(char) * 7);
+	memset(timestring, 0, 7);
+
+	get_time_str_overtime(time, timestring);
+
+	assert_string_equal(timestring, "-05:45");
+
+	free(timestring);
+	timestring = NULL;
+}
+
+void get_minus_five_minutes_overtime()
+{
+	time_t time = -300;
+	char* timestring = malloc(sizeof(char) * 7);
+	memset(timestring, 0, 7);
+
+	get_time_str_overtime(time, timestring);
+
+	assert_string_equal(timestring, "00:05");
+
+	free(timestring);
+	timestring = NULL;
+}
+
 void get_thursday()
 {
 	char* weekday = malloc(sizeof(char) * 11);
@@ -230,6 +272,9 @@ int main()
 		cmocka_unit_test(get_zero_hour_and_fifteen_minutes),
 		cmocka_unit_test(get_five_hour_fourty_five),
 		cmocka_unit_test(get_minus_five_minutes),
+		cmocka_unit_test(get_zero_hour_and_fifteen_minutes_overtime),
+		cmocka_unit_test(get_five_hour_fourty_five_overtime),
+		cmocka_unit_test(get_minus_five_minutes_overtime),
 		cmocka_unit_test(get_thursday),
 		cmocka_unit_test(get_friday),
 		cmocka_unit_test(get_saturday),
-- 
2.39.5