import 'package:unpub/unpub.dart' as unpub;

main(List<String> args) async {
  var basedir = '/path/to/basedir'; // Base directory to save pacakges
  var db = 'mongodb://localhost:27017/dart_pub'; // MongoDB uri

  var metaStore = unpub.MongoStore(db);
  await metaStore.db.open();

  var packageStore = unpub.FileStore(basedir);

  var app = unpub.App(
    metaStore: metaStore,
    packageStore: packageStore,
  );

  var server = await app.serve('0.0.0.0', 4000);
  print('Serving at http://${server.address.host}:${server.port}');
}

var app = unpub.App(
  // ...
  uploadValidator: (Map<String, dynamic> pubspec, String uploaderEmail) {
    // Only allow packages with some specified prefixes to be uploaded
    var prefix = 'my_awesome_prefix_';
    var name = pubspec['name'] as String;
    if (!name.startsWith(prefix)) {
      throw 'Package name should starts with $prefix';
    }

    // Also, you can check if uploader email is valid
    if (!uploaderEmail.endsWith('@your-company.com')) {
      throw 'Uploader email invalid';
    }
  }
);

import 'package:unpub/unpub.dart' as unpub;

class MyAwesomeMetaStore extends unpub.MetaStore {
  // Implement methods of MetaStore abstract class
  // ...
}

class MyAwesomePackageStore extends unpub.PackageStore {
  // Implement methods of PackageStore abstract class
  // ...
}

// Then use it
var app = unpub.App(
  metaStore: MyAwesomeMetaStore(),
  packageStore: MyAwesomePackageStore(),
)