timer

#!/bin/bash

setup_window () {
	min=$(zenity --entry --text "Enter minutes:")
	if [ "$min" == "" ]; then
		exit
	fi
	min=$(( $min*60 ))
	now=`date +%s`
	echo "$(( $min + $now ))"
}

# e.g. 16:50
setup_window_time () {
	min=$(zenity --entry --text "Enter exact time:")
	if [ "$min" == "" ]; then
		exit
	fi
	# convert 
	min=`date --date=$min +%s`
	echo $min
}

done_window () {
	# paplay /usr/share/sounds/freedesktop/stereo/alarm-clock-elapsed.oga
	zenity --info --width=500 --height=250 --ellipsize --text "Timer!"
}

fix_digits () {
	digit=$1
	chrlen=${#digit}
	if [ $chrlen -eq 1 ]; then
		digit="0"$digit
	fi
	echo "$digit"
}

print_elapsed () {
	ELAPSE=$1		# compute elapsed time in seconds
	HOURS=$(( $ELAPSE/60/60 ))
	MINS=$(( $ELAPSE/60 - ($HOURS*60) ))			# convert to minutes... (dumps remainder from division)
	SECS=$(( $ELAPSE - ($MINS*60) - ($HOURS*60*60) )) 	# ... and seconds
	NC='\033[0m' # No Color
	
	if [ $HOURS -gt 0 ]; then
		MINS=$( fix_digits $MINS )
		SECS=$( fix_digits $SECS )
		echo "$HOURS:$MINS:$SECS"
		echo "$HOURS:$MINS:$SECS"
	elif [ $MINS -gt 0 ]; then
		SECS=$( fix_digits $SECS )
		echo "$MINS:$SECS"
		echo "$MINS:$SECS"
	elif [[ condition ]]; then
		echo "$SECS"
		echo "$SECS"
	fi
	colorise $ELAPSE
}

colorise () {
	min=$1
	warn=300
	crit=60
	warnCol="#FFFF00"
	if [ $min -le $crit ]; then
		exit 33;
	elif [ $min -lt $warn ]; then
		echo $warnCol
	fi
}

reset () {
	echo "0">$zfile
}

# test
if [ "$1" == "test" ]; then
	min=$( setup_window_time )
	echo $min
	echo `date +%s`
fi

zfile=`dirname $0`/zzz

if [ "$BLOCK_BUTTON" == 1 ]; then
	min=$( setup_window )
	echo $min>$zfile
elif [ "$BLOCK_BUTTON" == 2 ]; then
	reset
elif [ "$BLOCK_BUTTON" == 3 ]; then
	min=$( setup_window_time )
	echo $min>$zfile
fi

if [ ! -f $zfile ]; then
	echo 
	exit
fi

min=`cat $zfile`
now=`date +%s`

if [ $min -gt $now ]; then
	print_elapsed $(( $min - $now))
else
	if [ $min -eq 0 ]; then
		echo 
	else 
		reset
		done_window
	fi
fi