#!/bin/bash
IFS="
"
#Set your parameters here
url=hub.example.net
db=friendica
folder=/var/www/friendica
folderavatar=/var/www/friendica/avatar
loop() {
	#Parse each file in folder
	ky=$(echo "$y" | sed -e "s/$folderescaped/https:\/\/$url/g" -e "s/-[0-9]*\..*\$//g")
	f=$(sudo mariadb $db -N -B -q -e "select photo from contact where photo like '$ky%' limit 1")
	if [[ $? -eq 0 && -z $f && -f $y ]]
	then
		ls -lh "$y"
		sudo rm -rf "$y"
		d=$(( d + 1 ))
	fi
	#printf "\rPhotos: %s\tFolder %s\tEntry %s   " "$d" "$n" "$m"
	printf "\rFolder %s\tEntry %s  " "$n" "$m"
	return $d
}

date
#Go to the Friendica installation
cd "$folderavatar" || exit
let "indexlength=37+${#url}"
(( indexlength=49+${#url} ))
sudo mariadb $db -e "alter table contact add index if not exists photo_index (photo($indexlength))"
n=0
d=0
sudo find "$folderavatar" -depth -mindepth 1 -maxdepth 1 -type d | while read -r x
do
	n=$(( n + 1 ))
	#If the directory still exists
        if [[ -d "$x" ]]
        then
                folderescaped=${folder////\\/}
                kx=$(echo "$x" | sed -e "s/$folderescaped/https:\/\/$url/g" -e "s/-[0-9]*\..*\$//g")
                if [[ -d $x ]]
                then
			m=0
			while read -r y
			do
				m=$(( m + 1 ))
				loop "$x" "$m" "$n" "$d" &
			        if [[ $(jobs -r -p | wc -l) -ge $(( $(getconf _NPROCESSORS_ONLN) / 1 )) ]]
			        then
                			wait -n
			        fi
			done < <(sudo find "$x" -type f -mtime -8)
                fi
        fi
done
sudo mariadb $db -e "alter table contact drop index photo_index"
date