#!/bin/bash
#
# USAGE: addmag LINK
# Opens magnet links with a remote transmission daemon.
# The remote address is configured in either:
#   /etc/addmagrc
#   ${HOME}/.addmagrc
# These files should contain nothing but the remote address.
#
# aetherised 2021 <aetherised@gmail.com>
#

RCNAME="addmagrc"
SYSRC="/etc/${RCNAME}"
USRRC="${HOME}/.${RCNAME}"
ADDR=
NOTIFY=

notify() {
  [[ -n "${NOTIFY}" ]] && notify-send "${@}"
}

while getopts 'n' arg; do
  case "${arg}" in
    n) NOTIFY="true" ;;
    *) echo "invalid argument '${arg}'"; exit 1;;
  esac
done

shift $((OPTIND - 1))

LINK="${1}"

if [[ -z "${LINK}" ]]; then
  echo "ERROR: no magnet link or torrent file specified"
  exit 1
fi

[[ -f "${SYSRC}" ]] && ADDR="$(cat "${SYSRC}")"
[[ -f "${USRRC}" ]] && ADDR="$(cat "${USRRC}")"
if [[ -z "${ADDR}" ]]; then
  echo "ERROR: no remote address configured"
  echo "       Place the address of the remote daemon in one of these locations:"
  echo "         ${SYSRC}"
  echo "         ${USRRC}"
  exit 1
fi

if transmission-remote "${ADDR}" -a "${LINK}"; then
  echo "added '${LINK}' to '${ADDR}'"
  notify -u normal -t 5000 "TORRENT ADDED" "Added torrent to '${ADDR}'"
else
  echo "ERROR: failed to add '${LINK}' to '${ADDR}'"
  notify -u critical -t 5000 "TORRENT ADD FAILED" "Failed to add torrent to '${ADDR}'"
fi