#!/bin/bash

DATA_DEVICE_UUID="C6CE6C2BCE6C1649"
MOUNT_PATH="/mnt/extern"
DATA="${MOUNT_PATH}/timelapse"
CLIENT="timelapse@192.168.111.2"
CLIENT_FOLDER="/timelapse"

if [[ "${1}" =~ [0-9]{2} ]]
then
	WEEK=${1}
else
	WEEK=`date --date="last monday" +%V`
fi
current_week=`date +'%V'`
current_week_diff=$((${current_week}-${WEEK}-1))
DATE_WEEK=`date --date="last monday - ${current_week_diff} weeks" +%Y%m%d`
DATE_START=`date --date="${DATE_WEEK}" +%s`
DATE_STOP=$(($DATE_START+7*86400))

mountpoint -q ${MOUNT_PATH}
if [ ${?} != 0 ]
then
	sudo mount --uuid ${DATA_DEVICE_UUID} -o uid=1000,gid=1000,umask=0022 ${MOUNT_PATH} || echo "Cannot mount data device with UUID ${DATA_DEVICE_UUID}!"; exit 1
fi

if [ ! -e "${DATA}" ]
then
	mkdir -p ${DATA}
fi

if [ ! -e "${DATA}/video" ]
then
	mkdir -p "${DATA}/video"
fi

# sort files
rm -rf "${DATA}/weekly"
mkdir -p "${DATA}/weekly"
weekly_counter=0
for i in `find ${DATA}/data/ -name "${DATE}*.jpg"`
do
	seconds_unixtime=`echo "${i}" | sed 's/^.\+_\([0-9]\+\).*/\1/'`
	if [ "${seconds_unixtime}" -ge "${DATE_START}" ] && [ "${seconds_unixtime}" -lt "${DATE_STOP}" ]
	then
		weekly_counter=$((weekly_counter + 1))
		if [ ${weekly_counter} -ge 7 ]
		then
			if [ ! -e "${DATA}/weekly/`basename ${i}`" ]
			then
				ln ${i} "${DATA}/weekly"
			fi
			weekly_counter=0
		fi
	fi
done