Variable-period notifier for OSX

reminder.sh

#!/bin/sh

# Variable-period notifier for OSX
# Requires the following (available via homebrew):
#	terminal-notifier (https://github.com/julienXX/terminal-notifier)
#	reattach-to-user-namespace (https://github.com/ChrisJohnsen/tmux-MacOSX-pasteboard)
# See below for information about reattach-to-user-namespace (necessary to connect to notifications via `at`):
# https://github.com/ChrisJohnsen/tmux-MacOSX-pasteboard#mac-os-x-pasteboard-access-under-tmux-and-screen

##########
# Log all output to file for debugging
#exec 1<&1-
#exec 2<&1-
#exec 1<>~/logflowers.log
#exec 2>&1
#########

SCRIPT='bin/reminder.sh'
NEXT=`awk 'BEGIN{srand(); printf("%d\n", rand()*60+30)}'` # 30 + (0-60)
TITLE="Remember to do the thing!"
MESSAGE="Next in $NEXT days"
RESULT=`reattach-to-user-namespace terminal-notifier \
	-message "$MESSAGE" \
	-title "$TITLE" \
	-sound "Purr" \
	-open "http://www.cnn.com/" \
	-actions "Tomorrow" \
	-timeout 6` # Customize as you like

case $RESULT in
	'@CONTENTCLICKED')
		#  reschedule for 9am $NEXT days from now if clicked
		at -f $SCRIPT 09:00 +$NEXT days
		;;
	'Tomorrow')
		#  reschedule for 9am tomorrow if "Tomorrow"
		#  don't do +1 days because it's already past 9am
		at -f $SCRIPT 09:00
		;;
	'@TIMEOUT')
		#  reschedule for a few min from now if not clicked after 30s
		at -f $SCRIPT now +5 minutes
		;;
	*)
		ac -f $SCRIPT now +5 minutes
		;;
esac