utils.js

/** @param {NS} ns **/
export function multiscan(ns, server) {
  let serverList = [];
  function scanning(server) {
    let currentScan = ns.scan(server);
    currentScan.forEach(server => {
      if (!serverList.includes(server)) {
        serverList.push(server);
        scanning(server);
      }
    })
  }
  scanning(server);
  return serverList;
}

export function gainRootAccess(ns, server) {
  if (ns.fileExists('brutessh.exe')) {
    ns.brutessh(server);
  }
  if (ns.fileExists('ftpcrack.exe')) {
    ns.ftpcrack(server);
  }
  if (ns.fileExists('relaysmtp.exe')) {
    ns.relaysmtp(server);
  }
  if (ns.fileExists('httpworm.exe')) {
    ns.httpworm(server);
  }
  if (ns.fileExists('sqlinject.exe')) {
    ns.sqlinject(server);
  }

  const serverData = ns.getServer(server);
  if (ns.getServerNumPortsRequired(server) <= serverData.openPortCount) {
    ns.nuke(server);
  } else {
    console.log(`could not gain access to ${server}, lack of open ports`)
  }
  /* Requires Singularity 4-1
  if (!serverData.backdoorInstalled) {
    ns.installBackdoor(server);
  }
  */
}

export function findTargetServer(ns, serverList) {
  let serverMoney = [];
  let highestMax = 0;
  let bestServer = '';
  let targetServer = {};

  serverList.forEach(server => {
    serverMoney.push(ns.getServerMaxMoney(server));
  })

  for (let i = 0; i < serverMoney.length; i++) {
    if (serverList[i] != 'home' && ns.getServerRequiredHackingLevel(serverList[i]) <= ns.getHackingLevel()) {
      if (serverMoney[i] > highestMax) {
        highestMax = serverMoney[i];
        bestServer = serverList[i];
      }
    }
  };

  if (bestServer != '') {
    targetServer = {
      'target': bestServer,
      'moneyThresh': Math.floor(ns.getServerMaxMoney(bestServer) * .80),
      'securityThresh': ns.getServerMinSecurityLevel(bestServer) * 2
    };
  }

  return targetServer;
}

export function calcBestRam(ns) {
  let ramList = [];
  let affordableRamList = [];
  let i = 2;

  while (ramList.length < 20) {
    let result = Math.pow(2, i);
    ramList.push(result);
    i++;
  }

  ramList.forEach(ram => {
    if ((25 * ns.getPurchasedServerCost(ram)) <= ns.getServerMoneyAvailable('home')) {
      affordableRamList.push(ram);
    }
  })

  const bestRam = ramList[affordableRamList.length - 1];

  return bestRam;
}

export function deletePurchasedServers(ns) {
  const pservers = ns.getPurchasedServers();
  
  pservers.forEach(server => {
    ns.killall(server);
    ns.deleteServer(server);
  });
}