import grpc from '@grpc/grpc-js';
import proto from '@grpc/proto-loader';

export function loadPubSub() {
  const PROTO_PATH = 'grpc/service.proto';
  const packageDefinition = proto.loadSync(PROTO_PATH, {});
  const protoDescriptor = grpc.loadPackageDefinition(packageDefinition);
  return protoDescriptor.pubsub;
}
export function setupgRPC(handler) {
  const server = new grpc.Server();
  const pubsub = loadPubSub();
  server.addService(pubsub.PubSub.service, handler)
  return server
}

export function createClient(address) {
  const pubsub = loadPubSub()
  return new pubsub.PubSub(address, grpc.credentials.createInsecure());
}

export function startServer(
  address,
  handler,
  logger,
) {
  const server = setupgRPC(handler)
  server.bindAsync(address, grpc.ServerCredentials.createInsecure(), () => {
    logger.info(`Started server on ${address}`)
    server.start();
  });
  return server
}