'use strict';

import { SiteError } from '../../../lib/site-lib.js';

/*
 * This is a sample populator. It doesn't run. There is no sample service, etc.
 * This is simply the pattern you follow to declare a new ExpressJS parameter
 * populator and export it from your populators library.
 */
export function populateSampleParameter (controller) {
  return async function (req, res, next, sampleParameter) {
    const { sample: sampleService } = controller.dtp.services;
    try {
      res.locals.sample = await sampleService.getSample(sampleParameter);
      if (!res.locals.sample) {
        throw new SiteError(404, 'Sample not found');
      }
      return next();
    } catch (error) {
      controller.log.error('failed to populate sampleParameter', { sampleParamater, error });
      return next(error);
    }
  };
}