import { logger } from '../../../logger/index.ts';
import { withCache } from '../../../util/cache/package/with-cache.ts';
import { getQueryString, joinUrlParts } from '../../../util/url.ts';
import { Datasource } from '../datasource.ts';
import type { GetReleasesConfig, ReleaseResult } from '../types.ts';
import { OrbPackagesResponse } from './schema.ts';

export class OrbDatasource extends Datasource {
  static readonly id = 'orb';

  constructor() {
    super(OrbDatasource.id);
  }

  override readonly customRegistrySupport = true;

  override readonly defaultRegistryUrls = ['https://circleci.com/'];
  override readonly registryStrategy = 'hunt';

  override readonly releaseTimestampSupport = true;
  override readonly releaseTimestampNote =
    'The release timestamp is determined from the `created_at` field in the results.';

  private async _getReleases({
    packageName,
    registryUrl,
  }: GetReleasesConfig): Promise<ReleaseResult | null> {
    /* v8 ignore next -- should never happen */
    if (!registryUrl) {
      return null;
    }
    const url = `${joinUrlParts(
      registryUrl,
      'api/v3/orb/packages',
    )}?${getQueryString({ 'filter[name]': packageName })}`;
    try {
      const { body } = await this.http.getJson(url, OrbPackagesResponse);
      const pkg = body.data[0];
      if (!pkg) {
        logger.debug({ packageName }, `Failed to look up orb ${packageName}`);
        return null;
      }

      // The homepage fallback uses the requested packageName, which the schema
      // has no access to, so it is built here rather than in the transform.
      const homepage = pkg.homeUrl?.length
        ? pkg.homeUrl
        : `https://circleci.com/developer/orbs/orb/${packageName}`;
      const dep = {
        homepage,
        isPrivate: pkg.isPrivate,
        releases: pkg.releases,
      };
      logger.trace({ dep }, 'dep');
      return dep;
    } catch (err) {
      this.handleGenericErrors(err);
    }
  }

  override getReleases(
    config: GetReleasesConfig,
  ): Promise<ReleaseResult | null> {
    return withCache(
      {
        namespace: `datasource-${OrbDatasource.id}`,
        key: `${config.registryUrl}:${config.packageName}`,
        fallback: true,
      },
      () => this._getReleases(config),
    );
  }
}