#!/bin/bash

#
# example ~/gcalsync/curlrc (use firebug to get the exact cookie/form
# values):
#
# user-agent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2) Gecko/20100125 Firefox/3.6"
# referer = "https://www.google.com/calendar/hosted/domain.com/render"
# cookie = "S=foo; secid=bar"
# form = "filename=@items.ics"
# form = "src=baz"
# url = "https://www.google.com/calendar/hosted/domain.com/upload_event"

#
# example ~/.kde/Autostart/gcalsync-daemon:
# #!/bin/sh
# 
# gcalsync --daemon &

if [ "$1" == "--daemon" ]; then
	while :
	do
		sleep 60
		qdbus || break
		[ -d  ~/.gcalsync ] && mkdir ~/.gcalsync
		bash -e $0 &> ~/.gcalsync/log
	done
	exit 0
fi

if [ -e ~/.gcalsync/lastsync ]; then
	lastsync="$(cat ~/.gcalsync/lastsync)"
else
	lastsync=0
fi
now=$(date +%s)

if [ $(($now-$lastsync)) -lt 86400 ]; then
	echo ":: already synced within a day ($(($now-$lastsync)) seconds ago), not syncing"
	exit 0
fi

echo ":: contacting google.com..."
count="$((ping -c 1 www.google.com 2>/dev/null || echo ', 0 received')| grep received|sed 's/.*, \(.*\) received.*/\1/')"
if [ "$count" -eq 0 ]; then
	echo ":: google.com is not reachable, not syncing"
	exit 1
fi
echo ":: searching for the phone..."
if ! hcitool scan|grep -q $(grep ^port ~/.gammurc |sed 's/.*= //'); then
	echo ":: not found, not syncing"
	kdialog --title gcalsync --passivepopup "Phone not found, need to sync, but can't." 0
	exit 1
fi
echo ":: creating items.ics..."
if [ ! -d ~/.gcalsync/git ]; then
	mkdir ~/.gcalsync/git
	cd ~/.gcalsync/git
	git init
fi
cd ~/.gcalsync/git
(echo no; yes yes) |gammu --backup backup.gammu
echo -e 'yes\nno' |gammu --backup items.ics
echo
dos2unix items.ics
sed -i '/DTSTART/s/Z$//' items.ics
sed -i '/DTEND/s/Z$//' items.ics
sed -i '/ALARM/s/Z$//' items.ics
unix2dos items.ics
echo ":: uploading events..."
git update-index -q --refresh
if [ -z "$(git diff-index --name-only HEAD --)" ]; then
	kdialog --title gcalsync --passivepopup "Not synchronising, no changes."
else
	git add items.ics backup.gammu
	git commit -m "$(date +%Y-%m-%d)"
	out=$(curl -s -k --config ~/.gcalsync/curlrc |elinks -dump|sed -n 's/imported/synchronised/;3p')
	kdialog --title gcalsync --passivepopup "$out" 0
fi
echo $now > ~/.gcalsync/lastsync
echo ":: done."