Rename plugins to external

applications/external/cntdown_timer/utils/utils.c

@@ -0,0 +1,34 @@
+#include <furi.h>
+#include "utils.h"
+
+static const NotificationSequence sequence_beep = {
+    &message_blue_255,
+    &message_note_d5,
+    &message_delay_100,
+    &message_sound_off,
+
+    NULL,
+};
+
+void notification_beep_once() {
+    notification_message(furi_record_open(RECORD_NOTIFICATION), &sequence_beep);
+    notification_off();
+}
+
+void notification_off() {
+    furi_record_close(RECORD_NOTIFICATION);
+}
+
+void notification_timeup() {
+    notification_message(furi_record_open(RECORD_NOTIFICATION), &sequence_audiovisual_alert);
+}
+
+void parse_sec_to_time_str(char* buffer, size_t len, int32_t sec) {
+    snprintf(
+        buffer,
+        len,
+        "%02ld:%02ld:%02ld",
+        (sec % (60 * 60 * 24)) / (60 * 60), // hour
+        (sec % (60 * 60)) / 60, // minute
+        sec % 60); // second
+}