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!7

sclass AllOnlineComputers extends DynCalculatedList {
  L<S> data;
  transient DialogIO io;
  
  L<S> calc() { ret data; }
  
  void cleanMeUp {
    if (io != null) io.close();
  }
  
  void start {
    super.start();
    connect();
    doEvery(30000, r {
      if (io != null) io.sendLine("");
    });
  }
  
  void connect {
    thread "Connect" {
      while licensed {
        try {
          io = talkTo("smartbot.botcompany.de", 6000);
          io.getSocket().setSoTimeout(30000+10000);
          print("Connected.");
          temp tempAfterwards(r { print("Disconnected.") });
          io.sendLine(format("computerID=*", computerID()));
          io.sendLine(format("sub *", "computerIDs"));
          print("Sent computer ID: " + computerID());
          S line;
          while ((line = io.readLine()) != null) {
            if (nempty(line)) print("Have msg: " + line);
            new Matches m;
            if (swic(line, "ComputerIDs = ", m))
              setField(data := safeUnstruct($1));
          }
        }
        io = null;
        sleepSeconds(5);
      } catch e { // pcall would also do an annoying message box
        printShortException(e);
      }
    }
  }
}