#!/bin/bash -eu

set +H -xeuo pipefail

: ${ONEDRIVE_UID:=$(stat /onedrive/data -c '%u')}
: ${ONEDRIVE_GID:=$(stat /onedrive/data -c '%g')}

# Create new group using target GID
if ! odgroup="$(getent group $ONEDRIVE_GID)"; then
  odgroup='onedrive'
  groupadd "${odgroup}" -g $ONEDRIVE_GID
else
  odgroup=${odgroup%%:*}
fi

# Create new user using target UID
if ! oduser="$(getent passwd $ONEDRIVE_UID)"; then
  oduser='onedrive'
  useradd -m "${oduser}" -u $ONEDRIVE_UID -g $ONEDRIVE_GID
else
  oduser="${oduser%%:*}"
  usermod -g "${odgroup}" "${oduser}"
  grep -qv root <( groups "${oduser}" ) || { echo 'ROOT level priviledges prohibited!'; exit 1; }
fi

chown "${oduser}:${odgroup}" /onedrive/ /onedrive/conf

# Default parameters
ARGS=(--monitor --confdir /onedrive/conf --syncdir /onedrive/data)

#Make Verbose output optional, based on an environment variable
# default behaviour is verbose (to continue to behave as before)
if ! [ "${ONEDRIVE_VERBOSE:=1}" == "0" ]; then
   echo "# We are being verbose"
   echo "# set ONEDRIVE_VERBOSE environment to 0 (Zero) to be less chatty"
   ARGS=(--verbose ${ARGS[@]})
fi

if [ ${#} -gt 0 ]; then
  ARGS=("${@}")
fi

exec gosu "${oduser}" /usr/local/bin/onedrive "${ARGS[@]}"