!7

cmodule Google {

  S query;

  L<SS> result;

  switchable S language = "lang_en";

  transient int maxInputLength = 120;

  transient NotTooOften notTooOften = onlyEvery10Secs();

  transient WaitForStableValue<S> waitForStableValue = new(5.0);

  transient volatile bool calculating;

  transient JTable table;

  transient SimpleLiveValue<S> lvQuery = stringLiveValue();

  visual jLiveValueSection(lvQuery, dataToTable_uneditable(result, table = sexyTable()));

  void unvisualize() { table = null; }  

  start {

    lvQuery.set(query);

    ownTimer(doEvery(1000, r updateMe));

  }

  void update {

    S s = dm_getInterestingString();

    if (nempty(s) && l(s) <= maxInputLength) { // TODO: more quality checks?

      waitForStableValue.set(s);

    }

    fS q = waitForStableValue!;

    if (nempty(q) && neq(q, query) && allowedToGoogleSomething())

      dm_q(r { calc(q) });

  }

  void calc(S q) {

    if (eq(query, q)) ret;

    query = q; result = null;

    lvQuery.set(q);

    temp tempSetField(this, calculating := true);

    L<T3S> l = quickGoogle2(q, language);

    result = map(l, func(T3S t) -> SS {

      litorderedmap("Result" := second(t), "Desc" := nullOnEmpty(third(t)), "Link" := first(t))

    });

    dataToTable_uneditable_ifHasTable(result, table);

  }

  bool allowedToGoogleSomething() {

    ret notTooOften.canDoAgain_willDoIfTrue();

  }

}