#!/bin/sh -e

BACKUP_SERVER="${BACKUP_SERVER-dd-backups@backup.digitaldemocratic.net}"
BORG_PASSCOMMAND="${BORG_PASSCOMMAND-cat $HOME/.borg-passphrase}"

wait_backup(){
  if ! [ -f /home/$1/backup_date ]
  then
    exit
  fi
  current_date="$(date +"%Y-%m-%d")"
  while ! [ "$current_date" = "$(cut -b1-10 /home/$1/backup_date)" ]
  do
    sleep 60
    if [ "$current_date" != "$(date +"%Y-%m-%d")" ]
    then
      echo "No backup for $1 at $current_date" >&2
      exit 1
    fi
  done
  export BORG_PASSCOMMAND
  borg create ssh://$BACKUP_SERVER/~/$1.borg::$(cat /home/$1/backup_date) /home/$1
  borg prune -d7 -w4 -m12 -y5 ssh://$BACKUP_SERVER/~/$1.borg
}


for item in $(ls /home)
do
  wait_backup $item &
done