!include #1005410 // Awareness Include

sbool validPeer(MachineInfo info) {
  if (!info.aware || info.computerID == null) false;
  if (info.lastChecked < now()-l(pinging)*pingLoopInterval*2*1000) false;
  true;
}

sS osName(MachineInfo info) {
  ret contains(info.bots, "Dex Bot.") ? "Android" : info.os;
}

svoid scanSubnet {
  pcall {
    S ip = getMyIP();
    int i = ip.lastIndexOf('.');
    if (i < 0) ret;
    print("Scanning my subnet...");
    for (int n = 1; n <= 255; n++) {
      S peer = substring(ip, 0, i+1) + n;
      scanPeer(peer);
    }
    print("Subnet scanned.");
  }
}

// 255 threads :)
svoid scanSubnet_parallel {
  pcall {
    S ip = getMyIP();
    int i = ip.lastIndexOf('.');
    if (i < 0) ret;
    print("Scanning my subnet really quickly...");
    for (int n = 1; n <= 255; n++) {
      fS peer = substring(ip, 0, i+1) + n;
      S msg = "Peer Scan " + peer;
      thread msg { scanPeer(peer); }
    }
  }
}

svoid scanPeer(S peer) {
  pcall {
    if (!pinging.contains(peer)) {
      print("Trying " + peer);
      if (isAware(peer))
        addPeers(ll(peer));
    }
  }
}

static L<S> otherPCs() {
  new L<S> ips;
  for (final MachineInfo info : findConcepts(MachineInfo, "me", false))
    if (validPeer(info) && neq(osName(info), "Android"))
      ips.add(info.ip);
  ret ips;
}