// A map of messages used by the API that don't need to be translated and
// so are not placed into /common/locales

import _ from 'lodash';

// When this file grows, it can be split into multiple ones.
const messages = {
  guildsOnlyPaginate: 'Only public guilds support pagination.',
  guildsPaginateBooleanString: 'req.query.paginate must be a boolean string.',
  guildsPageInteger: 'req.query.page must be an integer greater than or equal to 0.',
  groupIdRequired: 'req.params.groupId must contain a groupId.',
  managerIdRequired: 'req.body.managerId must contain a user ID.',
};

export default function (msgKey, vars = {}) {
  let message = messages[msgKey];
  if (!message) throw new Error(`Error processing the API message "${msgKey}".`);

  let clonedVars = vars ? _.clone(vars) : {};

  // TODO cache the result of template() ? More memory usage, faster output
  return _.template(message)(clonedVars);
}