import pg from "../postgres.js";
import { deleteQuery, insertQuery, selectWhereQuery } from "../pg-query.js";
import ExpressClientError from "../../util/ExpressClientError.js";
const table = "servers";

const asExpressClientError = (e) => {
  throw new ExpressClientError({ m: e.message, c: 409 });
};

export async function createServerEntry(serverSpec) {
  const { name, host, version, serverType: server_type, memory } = serverSpec;
  const q = insertQuery(table, { name, host, version, server_type, memory });
  return pg.query(q).catch(asExpressClientError);
}

export async function deleteServerEntry(serverName) {
  if (!serverName) asExpressClientError({ message: "Server Name Required!" });
  const q = deleteQuery(table, { name: serverName });
  return pg.query(q).catch(asExpressClientError);
}

export async function getServerEntry(serverName) {
  if (!serverName) asExpressClientError({ message: "Server Name Required!" });
  const q = selectWhereQuery(table, { name: serverName });
  try {
    const serverSpecs = await pg.query(q);
    if (serverSpecs.length === 0) return [];
    if (!serverSpecs.length === 1)
      throw Error("Multiple servers found with the same name!");
    const {
      name,
      host,
      version,
      server_type: serverType,
      memory,
    } = serverSpecs[0];
    return { name, host, version, serverType, memory };
  } catch (e) {
    asExpressClientError(e);
  }
}