<gh_stars>1-10
// Copyright (c) Microsoft Corporation
// All rights reserved.
//
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
//
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// BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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const logger = require('../config/logger');

/**
 * For compatible user job URL rewrite use
 *
 * GET /user/foo/jobs => GET /jobs?username=foo
 * GET /user/foo/jobs/bar/* => GET /jobs/foo~bar/*
 * GET /user/foo/jobs/bar~baz/* => GET /jobs/bar~baz/*
 * POST /user/foo/jobs => POST /jobs?username=foo (to distinguish with legacy POST /jobs)
 * PUT /user/foo/jobs/bar/* => POST /jobs/foo~bar/*
 * PUT /user/foo/jobs/bar~baz/* => POST /jobs/bar~baz/*
 */
const userJob = (req, res, next) => {
  const {username, jobName} = req.params;
  const remains = req.params[0];
  const url = req.url;
  if (jobName === undefined) {
    if (req.query.username === undefined) {
      req.query.username = username;
    }
    req.url = '/jobs';
  } else {
    const rewritedJobName = jobName.indexOf('~') === -1 ? `${username}~${jobName}` : jobName;
    const rewritedRemains = remains === undefined ? '' : `/${remains}`;
    req.url = `/jobs/${rewritedJobName}${rewritedRemains}`;
  }
  logger.info('Rewrite %s to %s', url, req.url);
  return next('route');
};

module.exports = {userJob};
