/** @param {NS} ns **/

//additional function, needed to merge arrays.
Array.prototype.unique = function() {
var a = this.concat();
for(var i=0; i<a.length; ++i) {
for(var j=i+1; j<a.length; ++j) {
if(a[i] === a[j])
a.splice(j--, 1);
}
}
return a;
};

export async function main(ns) {
ns.disableLog("ALL"); //Disable it for troubleshoting
ns.print("Start");
//You should create basic scripts with exact names. Like await ns.hack(ns.args[0]);
var files = ["weaken.ns", "grow.ns", "hack.ns"];
var servers = ns.scan("home");
var newservers;
var koefs = [0];
var targetserver = "n00dles"; //will be changed later
var serversnuked = ["home"]; //list of nuked, active servers

while(true){
//Find servers, nuke and add to list
for(var element of servers) { //It is infinity for, that scan again and again all servers an new ones.
await ns.sleep(1000);
ns.clearLog();
var newservers = ns.scan(element);
var servers = servers.concat(newservers).unique();
ns.print("Start for " + element);

//Buy servers
var ram = 8;
var myservers = ns.getPurchasedServers();
if(myservers[1]){var ramofmyservers = ns.getServerMaxRam(myservers[1])}
await ns.sleep(1000);
if (myservers.length < ns.getPurchasedServerLimit() && ns.getServerMoneyAvailable("home") > ns.getPurchasedServerCost(ram)) {
var number = myservers.length + 1;
var hostname = ns.purchaseServer("pserv-" + number, ram);
await ns.scp(files, "home", hostname);
ns.killall(hostname);
ns.print("Buy " + hostname);
}
else if(ns.getPurchasedServerCost(ramofmyservers * 2) * 250 < ns.getServerMoneyAvailable("home")){
for(var ser of myservers){
ns.killall(ser);
ns.deleteServer(ser);
}
for(var i = 0; i < 25; i++){
var myservers = ns.getPurchasedServers();
var ram = ramofmyservers * 2;
var number = myservers.length + 1;
var hostname = ns.purchaseServer("pserv-" + number, ram);
await ns.scp(files, "home", hostname);
ns.killall(hostname);
ns.print("Buy " + hostname);
}
}

//Check ports power
var portpower = [0, 0, 0, 0, 0];
var portcounter = 0;
if (ns.fileExists("BruteSSH.exe")) { portpower[0] = 1 ; portcounter++ };
if (ns.fileExists("FTPCrack.exe")) { portpower[1] = 1 ; portcounter++ };
if (ns.fileExists("relaySMTP.exe")) { portpower[2] = 1 ; portcounter++ };
if (ns.fileExists("HTTPWorm.exe")) { portpower[3] = 1 ; portcounter++ };
if (ns.fileExists("SQLInject.exe")) { portpower[4] = 1 ; portcounter++ };

//Nuke servers
if (serversnuked.indexOf(element) >= 0) {ns.print("Already nuked " + element)}
else if (ns.hasRootAccess(element)) {
serversnuked.push(element);
await ns.scp(files, "home", element);
}
else if (ns.getServerNumPortsRequired(element) > portcounter) { ns.print("No port power for " + element) }
else if (ns.getHackingLevel() < ns.getServerRequiredHackingLevel(element)) { ns.print("No skill for" + element) }
else {
if (portpower[0]) { ns.brutessh(element) };
if (portpower[1]) { ns.ftpcrack(element) };
if (portpower[2]) { ns.relaysmtp(element) };
if (portpower[3]) { ns.httpworm(element) };
if (portpower[4]) { ns.sqlinject(element) };
ns.nuke(element);
ns.print("Nuked " + element);
//ns.installBackdoor(element); //Will work in mid game

//To push files
await ns.scp(files, "home", element);
await ns.killall(element);
serversnuked.push(element);
ns.print("all files on " + element);
}

//To find a target, You can comment this part and just use targetserver
if(serversnuked.indexOf(element) >= 0){
var money = ns.getServerMaxMoney(element);
var security = ns.getServerMinSecurityLevel(element);
var koef = money / security * 0.000001 ;
if(koefs.some(el => el >= koef)) {
koefs.push(koef);
}
else {
targetserver = element;
koefs.push(koef);
ns.print(targetserver);
}
}

//Launch action on all servers nuked.
//Check what should be done, weak, grow or hack
//You can change % to experiment, try to do hack often but for small portions. 0.01 it is for late game!!! Sum of 3 numbers should be 1!!
for(var rs of serversnuked){
if((ns.getServerMaxRam(rs) - ns.getServerUsedRam(rs)) >= 2) {

var threadsH = Math.floor(Math.floor((ns.getServerMaxRam(rs)) / 1.75)* 0.26);
var threadsW = Math.floor(Math.floor((ns.getServerMaxRam(rs)) / 1.75)* 0.62);
var threadsG = Math.floor(Math.floor((ns.getServerMaxRam(rs)) / 1.75)* 0.30);
if(rs == "home"){
var threadsH = Math.floor(((ns.getServerMaxRam(rs) - 20) / 1.75)* 0.26);
var threadsW = Math.floor(((ns.getServerMaxRam(rs) - 20) / 1.75)* 0.62);
var threadsG = Math.floor(((ns.getServerMaxRam(rs) - 20) / 1.75)* 0.30);
}
if(ns.scriptRunning("weaken.ns", rs)){}
else if(threadsW > 0){ns.exec("weaken.ns", rs, threadsW, targetserver);}
if(ns.scriptRunning("grow.ns", rs)){}
else if(threadsG > 0){ns.exec("grow.ns", rs, threadsG, targetserver);}
if(ns.scriptRunning("hack.ns", rs)){}
else if(threadsH > 0){ns.exec("hack.ns", rs, threadsH, targetserver);}
}
else{}
}
}
}
}