const errorHandlers = require('../helpers/libraries/errorHandlers.js');
const serveController = require('../controllers/serveController.js');

function serveFile ({ file_type, file_path }, res) {
  // set default options
  const options = {
    headers: {
      'X-Content-Type-Options': 'nosniff',
      'Content-Type'          : file_type,
    },
  };
  // adjust default options as needed
  // eslint-disable-next-line camelcase
  switch (file_type) {
    case 'image/jpeg':
      break;
    case 'image/gif':
      break;
    case 'image/png':
      break;
    case 'video/mp4':
      break;
    default:
      console.log('sending unknown file type as .jpeg');
      options['headers']['Content-Type'] = 'image/jpeg';
      break;
  }
  // send file
  res.status(200).sendFile(file_path, options);
}

module.exports = (app, ua, googleAnalyticsId) => {
  // route to fetch one free public claim
  app.get('/:name/:claim_id', ({ params }, res) => {
    const routeString = `${params.name}/${params.claim_id}`;
    // google analytics
    ua(googleAnalyticsId, { https: true }).event('Serve Route', '/name/claimId', routeString).send();
    // begin image-serve processes
    console.log(`>> GET request on /${routeString}`);
    serveController
      .getClaimByClaimId(params.name, params.claim_id)
      .then(fileInfo => {
        console.log('/:name/:claim_id success.', fileInfo.file_name);
        serveFile(fileInfo, res);
      })
      .catch(error => {
        console.log('/:name/:claim_id error:', error);
        errorHandlers.handleRequestError(error, res);
      });
  });
  // route to fetch one free public claim
  app.get('/:name', ({ params }, res) => {
    // google analytics
    ua(googleAnalyticsId, { https: true }).event('Serve Route', '/name', params.name).send();
    // begin image-serve processes
    console.log(`>> GET request on /${params.name}`);
    serveController
      .getClaimByName(params.name)
      .then(fileInfo => {
        console.log('/:name success.', fileInfo.file_name);
        serveFile(fileInfo, res);
      })
      .catch(error => {
        console.log('/:name error:', error);
        errorHandlers.handleRequestError(error, res);
      });
  });
};