/*
 *  Copycat. Copyright (C) 2020 selfisekai <laura@selfisekai.rocks> and other contributors.
 *
 *  This is free software, and you are welcome to redistribute it
 *  under the GNU General Public License 3.0 or later; see the LICENSE file for details,
 *  or, if the file is unavailable, visit <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
 */

import { getIntrospectionQuery } from 'graphql';
import got, { Options as GotOptions } from 'got';
import { createWriteStream } from 'fs';
import path from 'path';
import { pipeline as pipelineUnpromised } from 'stream';
import { promisify } from 'util';

const pipeline = promisify(pipelineUnpromised);

const introspection = {
  method: 'POST' as 'POST',
  body: JSON.stringify({ query: getIntrospectionQuery() }),
  headers: {
    'Content-Type': 'application/json',
  },
};

const schemas: [
  string, // vendor
  'graphql' | 'json', // filetype
  [string | URL, GotOptions & { isStream?: true | undefined }],
][] = [
  ['github', 'graphql', ['https://docs.github.com/public/schema.docs.graphql', {}]],
  ['gitlab', 'json', ['https://gitlab.com/api/graphql', introspection]],
];

Promise.all(
  schemas.map(([vendor, filetype, downloadConfig]) =>
    pipeline(
      got.stream(...downloadConfig),
      createWriteStream(
        path.resolve(__dirname, '..', 'src', 'vendor', vendor, `schema.${filetype}`),
      ),
    ),
  ),
).then(() => console.log('done!'));