Automatic mounting of a davfs virtual drive

#!/bin/sh

service=$1
userdir=/home/ichbins

[ -z $service ] && {
  notify-send -u low -i error "Service parameter is missing" "Please, specify a service name"
  exit 1
}

isdavmounted=$(mount | grep $service | grep davfs)
isencmounted=$(mount | grep $service | grep encfs)

if [ -n "$isencmounted" -o -n "$isdavmounted" ]; then
  #unmount
  [ -n "$isencmounted" ] && {
    fusermount -u "${userdir}/${service}.crypt" && msg="Encfs,"
  }
  [ -n "$isdavmounted" ] && {
    umount "${userdir}/${service}" && msg="${msg}Davfs "
  }
  if [ -n "$msg" ]; then
    notify-send -u low -i info "$service unmounting" "$msg unmouned successfuly!"
  else
    notify-send -u low -i error "$service unmounting" "Failed to unmount $service!"
  fi
else
  #mount
  mount ${userdir}/${service} && {
    msg="Davfs,"
    encfs --extpass="cat ~/.encfs/$service" ${userdir}/${service}/crypt ${userdir}/${service}.crypt/ && {
      msg="${msg}Encfs "
    }
  }
  if [ -n "$msg" ]; then
    notify-send -u low -i info "$service mounting" "$msg mounted successfuly!"
  else
    notify-send -u low -i error "$service mounting" "Failed to mount $service!"
  fi
fi