import jsonServer from 'json-server';

const server = jsonServer.create();
const router = jsonServer.router('api.json');
const middlewares = jsonServer.defaults();

server.use(middlewares);

server.use(
  jsonServer.rewriter({
    '/api/*': '/$1',
    '*sort=services*': '$1sort=services[0].name$2',
    '*sort=organizations*': '$1sort=organizations[0].address.city$2',
    '*sort=fullName*': '$1sort=firstName,lastName$2',
    '/employee*': '/employees$1',
    '/participants': '/participants?_embed=employees',
    '/participant/:id': '/participants/:id?_embed=employees',
    '*page=*': '$1_page=$2',
    '*limit=*': '$1_limit=$2',
    '*sort=*': '$1_sort=$2',
    '*order=*': '$1_order=$2',
  })
);

router.render = (req, res) => {
  const params = new URLSearchParams(req._parsedUrl.query);

  // Add createdAt to the body
  if (req.originalMethod === 'POST') {
    req.body.createdAt = Date.now();
  }

  res.jsonp({
    data: res.locals.data,
    ...appendMetaData(params, res),
  });
};

server.use(router);
server.listen(8000, () => {
  console.info('JSON Server is running');
});

function appendMetaData(params, res) {
  if (params.has('_page')) {
    const limit = +params.get('_limit');
    const page = +params.get('_page');
    const count = res.get('X-Total-Count');
    const totalPages = Math.ceil(count / limit);
    return {
      meta: {
        count,
        limit,
        page,
        totalPages,
      },
    };
  }

  return null;
}