calcurse statusbar and notifications integration

.config/calcurse/conf

@@ -27,6 +27,6 @@ general.multipledays=yes
 general.periodicsave=1
 general.systemevents=yes
 general.systemdialogs=yes
-notification.command=printf '\a'
+notification.command=printf 'appointments notif'
 notification.notifyall=all
 notification.warning=300

.local/bin/statusbar/appointments

@@ -0,0 +1,17 @@
+#!/bin/bash
+#Print the next appointment for the day for statusbar
+#or generate notification for upcoming appointment
+diff=$(calcurse --next | tail -n1 | sed 's/^\s*//; s/\[//;s/\]//' | cut -f1 -d ' ')
+secs=$(( $(echo "$diff" | cut -f1 -d ':') * 3600  + $(echo "$diff" | cut -f2 -d ':') *60 ))
+time_appointment="$(date --date "@$(( $( date +'%s' ) + $secs ))" +"%s")"
+appointment="$(calcurse --next | tail -n1 | awk '{$1=""; print $0}' | sed 's/^\s*//')"
+if [ "$1" = "notif" ]; then
+	msg="$(printf '%s\n%s' "$(date --date "@$time_appointment" +'%H:%M')" "$appointment")"
+	notify-send "Appointment coming up" "$msg"
+else
+	midnight=$(( $(date --date "$(date | sed 's/..:..:../23:59:59/; s/ PM//; s/ AM//')" +%s) + 1 ))
+	if [ $midnight -gt "$time_appointment" ]; then
+		printf '%s %s' "$(date --date "@$time_appointment" +'%H:%M')" "$appointment"
+	fi
+	printf '\n'
+fi