import ftp from "basic-ftp";
import { ERR } from "../util/logging.js";
import { getServerAssets } from "./k8s-server-control.js";
import ExpressClientError from "../util/ExpressClientError.js";

const namespace = process.env.MCL_SERVER_NAMESPACE;

export async function useFtp(serverService) {
  const { name } = serverService.metadata;
  const client = new ftp.Client();
  await client.access({
    host: `${name}.${namespace}.svc.cluster.local`,
    user: "minecluster",
    password: "minecluster",
  });
  return client;
}

const handleError = (e) => {
  ERR("SERVER FILES", "Error occurred while preforming FTP operation!", e);
  throw new ExpressClientError({
    c: 500,
    m: "Error occurred while performing FTP operation!",
  });
};

export async function listServerFiles(serverSpec) {
  const { name } = serverSpec;
  const server = await getServerAssets(name);
  if (!server)
    throw new ExpressClientError({
      c: 404,
      m: "No resources for that server were found!",
    });
  if (!server.service)
    throw new ExpressClientError({
      c: 409,
      m: "Service doesn't exist, please contact your hosting provider!",
    });

  // FTP Operations;
  const client = await useFtp(server.service).catch(handleError);
  await client
    .list()
    .then((f) => res.json(f))
    .catch(handleError);
  client.close();
}