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 });
};

const getMclName = (host, id) => `${host.replaceAll(".", "-")}-${id}`;

export async function createServerEntry(serverSpec) {
  const {
    name,
    host,
    version,
    serverType: server_type,
    memory,
    backupHost: backup_host,
    backupBucket: backup_bucket_path,
    backupId: backup_id,
    backupKey: backup_key,
  } = serverSpec;
  var q = insertQuery(table, {
    name,
    host,
    version,
    server_type,
    memory,
    backup_host,
    backup_bucket_path,
    backup_id,
    backup_key,
  });
  q += "\n RETURNING *";
  try {
    const entries = await pg.query(q);
    const {
      id,
      name,
      host,
      version,
      server_type: serverType,
      memory,
    } = entries[0];
    const mclName = getMclName(host, id);
    return { name, mclName, id, host, version, serverType, memory };
  } catch (e) {
    asExpressClientError(e);
  }
}

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

export async function getServerEntry(serverId) {
  if (!serverId) asExpressClientError({ message: "Server ID Required!" });
  const q = selectWhereQuery(table, { id: serverId });
  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 {
      id,
      name,
      host,
      version,
      server_type: serverType,
      memory,
    } = serverSpecs[0];
    const mclName = getMclName(host, id);
    return { name, mclName, id, host, version, serverType, memory };
  } catch (e) {
    asExpressClientError(e);
  }
}

export async function getServerEntries() {
  const q = `SELECT * FROM ${table}`;
  return pg.query(q);
}