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static bool makeAndroid3_disable; // disable all android making

static class Android3 {
  S greeting;
  boolean publicOverride; // optionally set this in client
  int startPort = 5000; // optionally set this in client
  Responder responder;
  boolean console = true;
  boolean quiet; // no messages on console
  boolean daemon = false;
  boolean incomingSilent = false;
  int incomingPrintLimit = 200;
  boolean useMultiPort = true;
  boolean recordHistory;
  boolean verbose;
  int answerPrintLimit = 500;
  
  // set by system
  int port;
  long vport;
  DialogHandler handler;
  ServerSocket server;
  
  *(S *greeting) {}
  *() {}
  
  synchronized void dispose() {
    if (server != null) {
      try {
        server.close();
      } catch (IOException e) {
        print("[internal] " + e);
      }
      server = null;
    }
    if (vport != 0) pcall {
      print("Disposing " + this);
      removeFromMultiPort(vport);
      vport = 0;
    }
  }
  
  toString { ret "Bot: " + greeting + " [vport " + vport + "]"; }
}

static abstract class Responder {
  abstract S answer(S s, L<S> history);
}

static Android3 makeAndroid3(final S greeting) {
  return makeAndroid3(new Android3(greeting));
}

static Android3 makeAndroid3(final S greeting, Responder responder) {
  Android3 android = new Android3(greeting);
  android.responder = responder;
  return makeAndroid3(android);
}

static Android3 makeAndroid3(final Android3 a) {
  if (makeAndroid3_disable) ret a;
  
  if (a.responder == null)
    a.responder = new Responder() {
      S answer(S s, L<S> history) {
        return callStaticAnswerMethod(s, history);
      }
    };
    
  if (!a.quiet)
    print("[bot] " + a.greeting);
  
  if (a.console && makeAndroid3_consoleInUse() && !readLine_noReadLine) a.console = false;
  
  record(a);
  
  if (a.useMultiPort)
    a.vport = addToMultiPort(a.greeting,
      makeAndroid3_verboseResponder(a));
      
  if (a.console)
    makeAndroid3_handleConsole(a);

  if (a.useMultiPort) ret a;

  a.handler = makeAndroid3_makeDialogHandler(a);
  a.port = a.daemon
    ? startDialogServerOnPortAboveDaemon(a.startPort, a.handler)
    : startDialogServerOnPortAbove(a.startPort, a.handler);
  a.server = startDialogServer_serverSocket;

  return a;
}

static void makeAndroid3_handleConsole(final Android3 a) {
  // Console handling stuff
  if (!a.quiet)
    print("You may also type on this console.");
  thread {
    new L<S> history;
    S line;
    while ((line = readLine()) != null) {
      /*if (eq(line, "bye")) {
        print("> bye stranger");
        history = new ArrayList<S>();
      } else*/ {
        history.add(line);
        history.add(makeAndroid3_getAnswer(line, history, a)); // prints answer on console too
      }
    }
  }
}

static DialogHandler makeAndroid3_makeDialogHandler(final Android3 a) {
  return dialogHandler {
    if (!a.publicOverride && !(publicCommOn() || io.isLocalConnection())) {
      io.sendLine("Sorry, not allowed");
      return;
    }
    
    String dialogID = randomID(8);
    
    io.sendLine(a.greeting + " / Your ID: " + dialogID);
    
    new L<S> history;
    
    while (io.isStillConnected()) {
      if (io.waitForLine()) {
        final String line = io.readLineNoBlock();
        S s = dialogID + " at " + now() + ": " + quote(line);
        if (!a.incomingSilent)
          print(shorten(s, a.incomingPrintLimit));
        if (eq(line, "bye")) {
          io.sendLine("bye stranger");
          return;
        }
        new Matches m;
        if (a.recordHistory)
          history.add(line);
        S answer;
        if (match3("this is a continuation of talk *", s, m)
          || match3("hello bot! this is a continuation of talk *", s, m)) {
          dialogID = unquote(m.m[0]);
          answer = "ok";
        } else try {
          makeAndroid3_io.set(io);
          answer = makeAndroid3_getAnswer(line, history, a);
        } finally {
          makeAndroid3_io.set(null);
        }
        if (a.recordHistory)
          history.add(answer);
        io.sendLine(answer);
        //appendToLog(logFile, s);
      }
    }
  };
}

static S makeAndroid3_getAnswer(S line, L<S> history, Android3 a) {
  S answer, originalAnswer;
  try {
    originalAnswer = a.responder.answer(line, history);
    answer = makeAndroid3_fallback(line, history, originalAnswer);
  } catch (Throwable e) {
    e = getInnerException(e);
    printStackTrace(e);
    originalAnswer = answer = e.toString();
  }
  if (!a.incomingSilent) {
    if (originalAnswer == null) originalAnswer = "?";
    print("> " + shorten(originalAnswer, a.answerPrintLimit));
  }
  return answer;
}

static S makeAndroid3_fallback(S s, L<S> history, S answer) {
  // Now we only do the safe thing instead of VM inspection - give out our process ID
  if (answer == null && match3("what is your pid", s))
    return getPID();
    
  if (answer == null && match3("what is your program id", s)) // should be fairly safe, right?
    return getProgramID();
    
  if (match3("get injection id", s))
    return getInjectionID();
    
  if (answer == null) answer = "?";
  if (answer.indexOf('\n') >= 0 || answer.indexOf('\r') >= 0)
    answer = quote(answer);
  return answer;
}

static boolean makeAndroid3_consoleInUse() {
  for (O o : record_list)
    if (o instanceof Android3 && ((Android3) o).console)
      return true;
  return false;
}

static Responder makeAndroid3_verboseResponder(final Android3 a) {
  ret new Responder() {
    S answer(S s, L<S> history) {
      if (a.verbose)
        print("> " + shorten(s, a.incomingPrintLimit));
      S answer = a.responder.answer(s, history);
      if (a.verbose)
        print("< " + shorten(answer, a.incomingPrintLimit));
      ret answer;
    }
  };
}

static new ThreadLocal<DialogIO> makeAndroid3_io;

static Android3 makeAndroid3() {
  ret makeAndroid3(getProgramTitle() + ".");
}