import { HttpError } from '../error.mjs'
import decode from '../jwt/decode.mjs'
import config from '../config.mjs'

export function verifyToken(ctx) {
  let token = ctx.query.get('token')
  if (!token) {
    throw new HttpError('Token is missing in query', 422)
  }

  try {
    let decoded = decode(token, config.get('sites'), [])
    return decoded.iss
  } catch (err) {
    ctx.log.error(err, 'Error decoding token: ' + token)
    throw new HttpError('Token was invalid', 422)
  }
}