feat(date): add date_get_now_utc

Related #7

lib/date.c

@@ -285,3 +285,25 @@ void date_to_utc(struct date *date) {
   date->timezone_utc_offset = 0;
   date_add_hours(date, mathematics_opposite(timezone_utc_offset));
 }
+
+struct date *date_get_now_utc() {
+  struct date *date = malloc(sizeof(struct date));
+  if (date == NULL) {
+    perror("Error (date_get_now_utc)");
+    exit(EXIT_FAILURE);
+  }
+
+  time_t current_time = time(NULL);
+  struct tm *current_time_tm = gmtime(&current_time);
+
+  date->year = (uint16_t)(current_time_tm->tm_year + 1900);
+  date->month = (uint8_t)(current_time_tm->tm_mon + 1);
+  date->day = (uint8_t)current_time_tm->tm_mday;
+  date->hours = (uint8_t)current_time_tm->tm_hour;
+  date->minutes = (uint8_t)current_time_tm->tm_min;
+  date->seconds = (uint8_t)current_time_tm->tm_sec;
+  date->milliseconds = 0;
+  date->timezone_utc_offset = 0;
+
+  return date;
+}

lib/date.h

@@ -6,6 +6,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <time.h>
 
 #include "convert.h"
 #include "mathematics.h"
@@ -321,4 +322,12 @@ void date_add_days(struct date *date, int64_t days);
  */
 void date_to_utc(struct date *date);
 
+/**
+ * @brief Get the current date in UTC.
+ *
+ * @return struct date*
+ * @since v5.1.0
+ */
+struct date *date_get_now_utc();
+
 #endif

main.c

@@ -122,5 +122,11 @@ int main() {
   terminal_print_array_list(array_list, terminal_print_int);
   array_list_free(array_list);
 
+  struct date* date = date_get_now_utc();
+  string_t iso_string = date_to_iso_string(date);
+  printf("date_get_now_utc = %s\n", iso_string);
+  free(iso_string);
+  free(date);
+
   return EXIT_SUCCESS;
 }