!752

static class Msg {

  S user, text;

  *(S *user, S *text) {}

  *() {}

}

// persistent

static PersistentLog<Msg> msgs;

// built every time in memory

static new MultiMap<S, Msg> msgsByUser;

p {

  msgs = new PersistentLog<Msg>("incoming-msgs");

  for (Msg m : msgs) pcall { answer(m.text, m.user); }

  makeBot("I Have Bot.");

}

static S answer(S s) {

  ret answer(s, "user");

}

static synchronized S answer(S s, S user) {

  msgs.add(new Msg(user, s));

  new Matches m;

  ret answerImpl(user);

  msgsByUser.put(m.user, m);

  if (matchStart("i have", s, m)) {

    print(structure(m));

    S rest = m.rest();

    print("Rest: " + quote(rest));

    ret "ok";

  }

}