session.ts

import { NextApiRequest, NextApiResponse } from 'next';

import { IAuthSession, withSessionRoute } from '@lib/AuthSession';
import logger from '@utils/logger';

/**
 * Get Login session.
 * If there's a session cookie, it will return ip address and port number.
 * If there's no session cookie, it will return empty strings for ip address and port number.
 *
 * @param req - HTTP request provided by NextJS
 * @param res - HTTP response provided by NextJS
 */
const handleGet = (req: NextApiRequest, res: NextApiResponse<IAuthSession>) => {
  const getLogger = logger.scope('/api/auth/session', 'GET');

  getLogger.info(`checking is auth session exists`);

  const response: IAuthSession = {
    ipAddress: '',
    port: '',
    password: '',
  };

  if (req.session.authSession) {
    const { ipAddress, port } = req.session.authSession;

    response.ipAddress = ipAddress;
    response.port = port;

    getLogger.info(`auth session found`);
  } else {
    getLogger.info(`auth session NOT found`);
  }

  getLogger.complete(`sending response`);
  getLogger.debug(`response data`, response);

  res.status(200).json(response);
};

/**
 * Default method to run when executing this http api endpoint
 *
 * @remarks
 * HTTP API endpoint `/api/auth/session`
 *
 * @remarks
 * HTTP method allowed: `GET`
 */
const mainHandler = (req: NextApiRequest, res: NextApiResponse) => {
  const { method = '' } = req;

  // limit which HTTP methods are allowed
  switch (method) {
    case 'GET': {
      handleGet(req, res);
      break;
    }
    default: {
      logger.error({
        prefix: `/api/auth/session`,
        message: `invalid HTTP method type '${method}'`,
      });
      res.setHeader('Allow', ['GET']);
      res.status(405).end(`Method ${method} Not Allowed`);
    }
  }
};

export default withSessionRoute(mainHandler);