#! /bin/bash

skip=${1:-0}
set -x
set -e
backups="$(find /mnt/back/ -maxdepth 1 -mindepth 1 | grep -v '\/\.' | sort -r)"
if [ -z "${backups}" ]; then
   echo "ERR: no backups to restore" >&2
   exit 0
fi
tried=0
echo Trying backups ${backups}... >&2
for lastback in ${backups}; do
   ((tried+=1))
   if ((tried<=skip)); then
      continue
   fi
   if (
      echo Trying backup from $lastback >&2
      set -e
      service postgresql start
      psql postgres://ffly:pwd@localhost/fireflyiii < "$lastback"
      service postgresql start
      n=0
      until service postgresql status || ((n>10)); do
         sleep 5
         ((n+=1))
      done
      until service postgresql status | grep -E 'down|online'; do
         sleep 5
      done
      service postgresql status | grep online
   ); then
      exit 0
   fi
done
echo "ERR: could not load any backup" >&2
exit 1