/** @param {NS} ns */
export async function main(ns) {
    ns.tail();
    const sTarget = ns.args[0]; // target server

    // declare objects
    const oHome = ns.getServer("home");
    //const oTarget = ns.getServer(sTarget);

    // Lowram settings
    const sBatchScript = "lowram/Lowhgw.js";
    const sPrepScript = "lowram/Lowprep.js";
    const sRunScript = "lowram/Lowrun.js";
    const sGrowScript = "lowram/Lowgrow.js";

    //declare variables
    const sWeakenScript = "RMweaken.js";
    const nCores = oHome.cpuCores;
    let nSecurity = ns.getServerSecurityLevel(sTarget);
    const nMinSecurity = ns.getServerMinSecurityLevel(sTarget);
    const nWeakenSTR = ns.weakenAnalyze(1, nCores);
    let nThreads = Math.ceil((nSecurity - nMinSecurity) / nWeakenSTR);
    ns.print("nThreads = " + nThreads);


    ns.tail(ns.pid, oHome.hostname, sTarget);
    //ns.resizeTail(815, 395);
    //ns.moveTail(1925, 0);

    let nWeakenPID;

    if (nThreads > 0) {
        const nDelay = ns.getWeakenTime(sTarget);

        ns.print("current security is: " + nSecurity);
        ns.print("minimum security is: " + nMinSecurity);
        ns.print("threads needed for weaken: " + nThreads);
        ns.print(nThreads + " will reduce Security by " + ns.weakenAnalyze(nThreads, nCores));
        ns.print(nThreads + " of " + sWeakenScript + " requires " + (ns.getScriptRam(sWeakenScript, "home") * nThreads) + " GB of RAM");
        ns.print("weakening will take " + (nDelay / 1000 / 60) + " minutes");

        if ((ns.getServerMaxRam(oHome.hostname) - ns.getServerUsedRam(oHome.hostname)) >= (ns.getScriptRam(sWeakenScript, "home") * nThreads)) {
            nWeakenPID = ns.run(sWeakenScript, nThreads, sTarget);
            ns.print("Waiting for PID = " + nWeakenPID);
            await ns.nextPortWrite(nWeakenPID);
            nSecurity = ns.getServerSecurityLevel(sTarget);
            ns.print("Breach complete, security level is now at: " + nSecurity);
        }
        else {
            nThreads = Math.floor(((ns.getServerMaxRam("home") - ns.getServerUsedRam("home")) / ns.getScriptRam(sWeakenScript)));
            nWeakenPID = ns.run(sWeakenScript, nThreads, sTarget);
            ns.print("Waiting for PID = " + nWeakenPID);
            await ns.nextPortWrite(nWeakenPID);
            nSecurity = ns.getServerSecurityLevel(sTarget);
            ns.print("Breach in progress, security level is now at: " + nSecurity);
        }
    }
    //back to Lowrun
    ns.spawn(sRunScript, { threads: 1, spawnDelay: 0 }, sTarget);
}