#!/usr/bin/env bash

file_env() {
  # 3wc: Load $VAR_FILE into $VAR - useful for secrets. See
  #   https://medium.com/@adrian.gheorghe.dev/using-docker-secrets-in-your-environment-variables-7a0609659aab
  local var="$1"
  local fileVar="${var}_FILE"
  local def="${2:-}"

  if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
    echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
    exit 1
  fi
  local val="$def"
  if [ "${!var:-}" ]; then
    val="${!var}"
  elif [ "${!fileVar:-}" ]; then
    val="$(< "${!fileVar}")"
  fi
  export "$var"="$val"
  unset "$fileVar"
}

load_vars() {
  file_env "COLLABORATION_SERVER_SECRET"
  file_env "POSTGRES_PASSWORD"
  file_env "AWS_S3_SECRET_ACCESS_KEY"
  file_env "OIDC_RP_CLIENT_SECRET"
  file_env "DJANGO_SECRET_KEY"
  file_env "DJANGO_EMAIL_HOST_PASSWORD"
  file_env "DJANGO_SUPERUSER_PASSWORD"
}

set -eu
load_vars

set +eu

celery -A impress.celery_app worker -l INFO