#!/bin/bash

if ! test "$BASH_VERSION"; then echo "error: shell is not bash" >&2; exit 1; fi
shopt -s inherit_errexit 2>/dev/null ||: # ignore fail in bash < 4.4
set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?. PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR

# need root for rsync pull of file ownership/perms
[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"

host=bk.b8.nz
ret=0
source /a/bin/bash_unpublished/source-state

restore=false
case $1 in
  restore)
    restore=true
    ;;
esac

if $restore; then
  set -x
  for ncdir in /var/www/ncexpertpath /var/www/ncninja; do
    ncbase=${ncdir##*/}
    ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:mode --on ||: # might not be running
    rsync -ra /p/bkbackup/$ncbase/ root@$host:$ncdir  || ret=$?
    # https://docs.nextcloud.com/server/20/admin_manual/configuration_server/occ_command.html#maintenance-commands-label
    ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:data-fingerprint
    ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:mode --on
  done
  rsync -ravi /p/bkbackup/m root@$host:/
  exit 0
fi

ret=0
if [[ $HOSTNAME == $MAIL_HOST ]]; then
  mkdir -p /p/bkbackup
  for ncdir in /var/www/ncexpertpath /var/www/ncninja; do
    ncbase=${ncdir##*/}
    mkdir -p /p/bkbackup/$ncbase
    ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:mode --on
    rsync -ra --exclude=testignore --delete root@$host:$ncdir/{config,data,themes} /p/bkbackup/$ncbase || ret=$?
    ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:mode --off
    if (( ret )); then
       echo "$0: error: failed rsync $ncdir"
       ret=1
    fi
  done
  rsync -ra --delete root@$host:/m /p/bkbackup
fi
exit $ret