#!/bin/bash
# back up stuff from siemens C65, set time etc...
# by jkt@flaska.net

DEVICE=/dev/tts/USB0
DATE=`date "+%Y-%m-%d--%H-%M-%S"`
DIR=~/siemens-backup
OUT=$DIR/$DATE
export SLINK_DEVICE=$DEVICE

dummy_workaround() {
	# let's try to touch the phone by requesting memory info as suggested by avi.b@tiscali.cz
	slink i > /dev/null
	# ... but let's wait as well as the phone might be extremely braindead :(
	sleep 1
}

check_result() {
	if [[ "$res" -eq "0" ]] ; then
		echo "ok"
	else
		echo "failed ($res)"
	fi
}

set_time() {
	echo -n "setting time... "
	scmxx --device $DEVICE --set-time &> /dev/null
	local res=$?
	check_result
}

get_phonebook() {
	echo -n "retrieving phonebook... "
	slink g telecom/pb.vcf $OUT/pb.vcf &>/dev/null
	local res=$?
	check_result
}

get_calendar() {
	echo -n "retrieving calendar... "
	slink g telecom/cal.vcs $OUT/cal.vcs &>/dev/null
	local res=$?
	check_result
}

gammu_sms() {
	echo -n "fetching all SMS via gammu... "
	gammu --geteachsms > $OUT/sms-complete.gammu
	local res=$?
	check_result
}

fetch_sms_slot() {
	local slot=$1
	if [[ "$REMOVE" == "yes" ]] ; then
		local myopts="--remove"
		local msg=" and removing"
	else
		local myopts=""
		local msg=""
	fi
	echo -n "fetching${msg} $slot SMS... ["
	scmxx --device $DEVICE --sms --get --slot=$slot $myopts --out=$OUT/sms-$slot 2>&1 >/dev/null \
		| egrep --line-buffered "(Found|was deleted)" \
		| sed --unbuffered "s:Found .* SMS in slot ::;s:SMS slot :D:;s: was deleted.::;s:\.::" | awk 'ORS=" " {print $1}'
#		| grep --line-buffered "Found" | sed --unbuffered "s/\.$//" | awk 'ORS=" " {print $7}'
	echo "]"
	# FIXME: can't check the result of `scmxx` this way...
	#local res=$?
	#check_result
}

echo "Starting daily backup to $OUT"

mkdir $OUT || {
  echo "unable to mkdir $OUT"
  exit
}

if [[ "$1" == "--remove-sms" ]]; then
	REMOVE=yes
	touch $OUT/sms.REMOVED
else
	REMOVE=0
fi

set_time
dummy_workaround
get_phonebook
dummy_workaround
get_calendar
gammu_sms
# That REMOVE magic is to prevent accidental deletion
# of UNREAD messages. Let's hope it works...
fetch_sms_slot read
REMOVE=0 fetch_sms_slot unread
fetch_sms_slot sent
fetch_sms_slot unsent
echo "Backup hopefuly completed"