#!/bin/bash


set -o xtrace
set -u
set -o pipefail

usage () {
  printf "  Usage: rem.sh <url>\n"
  printf "    option: f <folder> (local folder contents to send to remote)\n"
  printf "    option: b (send backup scripts located in ../backup to remote)\n"
  printf "    option: d (send server docker spec located in ../docker to remote)\n"
  printf "    option: s (send server certificates located in ../srvtls to remote)\n"
  printf "    option: c (send server config located in ../config to remote)\n"
  printf "    option: a (options d,s,c combined - complete server, excluding scripts)\n"
}


FOLDER="_vols_"
SCRIPTS="false"
CERTS="false"
DOCKER="false"
CONFIG="false"
OUTPUT=""
while getopts ':f:bdsca' OPT; do
  case $OPT in
    b)
      SCRIPTS="true"
      OUTPUT="${OUTPUT}  Option: SEND BACKUP SCRIPTS\n";;
    f)
      FOLDER="${OPTARGS}"
      OUTPUT="${OUTPUT}  Option: SPECIFY SOURCE FOLDER\n";;
    s)
      CERTS="true"
      OUTPUT="${OUTPUT}  Option: SEND CERTIFICATES\n";;
    d)
      DOCKER="true"
      OUTPUT="${OUTPUT}  Option: SEND DOCKER SPEC\n";;
    c)
      CONFIG="true"
      OUTPUT="${OUTPUT}  Option: SEND CONFIG SPEC\n";;
    a)
      CONFIG="true"; DOCKER="true"; CERTS="true";
      OUTPUT="${OUTPUT}  Option: SEND ALL (BACKUP,CERTS,DOCKER,CONFIG\n";;
    \?)
      usage;
      exit;;
  esac
done
shift $((OPTIND -1))

REMOTEURL=""
if [[ -v 1 ]]; then
  REMOTEURL="${1}"
else
  echo "Missing remote address: user@url"
  exit 1
fi

REMOTEDIR="_vols_"
sudo ssh "${REMOTEURL}" << EOT || exit 1
echo "Local user: $USER"
echo "Remote user: \$USER"
pushd /srv/backup || exit 1
if [[ -d _vols_ ]]; then
  if [[ -n "$(ls -A _vols_)" ]]; then
    TF="$(stat -c "%W" "${REMOTEDIR}")"
    mv "${REMOTEDIR}" "${REMOTEDIR}\${TF}" || exit 1
  fi
fi
mkdir -p "${REMOTEDIR}" || exit 1
popd || exit 1
EOT

pushd "${FOLDER}" || exit 1
sudo scp *.tar.bz2 "${REMOTEURL}:/srv/backup/_vols_" || exit 1
popd || exit 1

if [[ $SCRIPTS == "true" ]]; then
  pushd "../backup" || exit 1
  sudo scp *.sh "${REMOTEURL}:/srv/backup" || exit 1
  popd || exit 1
fi

if [[ $CERTS == "true" ]]; then
  pushd "../srvtls" || exit 1
  sudo scp * "${REMOTEURL}:/srv/srvtls" || exit 1
  popd || exit 1
fi

if [[ $DOCKER == "true" ]]; then
  pushd "../docker" || exit 1
  sudo scp * .env "${REMOTEURL}:/srv/docker" || exit 1
  popd || exit 1
fi

if [[ $CONFIG == "true" ]]; then
  pushd "../config" || exit 1
  sudo scp * .env "${REMOTEURL}:/srv/config" || exit 1
  popd || exit 1
fi

set +o xtrace