import esMain from 'es-main';
import semver from 'semver';
import {Octokit} from '@octokit/rest';

export async function getLatestRelease() {
  const client = new Octokit();

  let latest = '0.0.0';
  await client.paginate(
    client.rest.repos.listReleases,
    {
      owner: 'openlayers',
      repo: 'openlayers',
    },
    (response) => {
      for (const release of response.data) {
        const version = semver.valid(release.name);
        if (version && semver.gt(version, latest)) {
          latest = version;
        }
      }
    }
  );

  return latest;
}

if (esMain(import.meta)) {
  getLatestRelease()
    .then((latest) => {
      process.stdout.write(`v${latest}\n`, () => process.exit(0));
    })
    .catch((err) => {
      process.stderr.write(`${err.message}\n`, () => process.exit(1));
    });
}