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fix: cache boolean for whether or not meaning distractors are available (#1509)

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ggurdin 2025-01-21 11:13:12 -05:00 • committed by GitHub
parent c0fb41d2f9
commit 383fe50c7f
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1 changed files with 36 additions and 13 deletions
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49
lib/pangea/toolbar/repo/lemma_meaning_activity_generator.dart
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@ -1,7 +1,9 @@
import 'dart:async';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:fluffychat/pangea/analytics/enums/construct_type_enum.dart';
import 'package:fluffychat/pangea/analytics/models/constructs_model.dart';
import 'package:fluffychat/pangea/analytics/models/construct_use_model.dart';
import 'package:fluffychat/pangea/analytics/repo/lemma_info_repo.dart';
import 'package:fluffychat/pangea/analytics/repo/lemma_info_request.dart';
import 'package:fluffychat/pangea/analytics/repo/lemma_info_response.dart';
@ -12,6 +14,10 @@ import 'package:fluffychat/pangea/toolbar/models/practice_activity_model.dart';
import 'package:fluffychat/widgets/matrix.dart';
class LemmaMeaningActivityGenerator {
/// Cache whether a lemma has distractors for a given part of speech
static final Map<String, bool> _hasDistractorsCache = {};
static Timer? _cacheClearTimer;
Future<MessageActivityResponse> get(
MessageActivityRequest req,
) async {
@ -57,15 +63,25 @@ class LemmaMeaningActivityGenerator {
);
}
static List<OneConstructUse> eligibleDistractors(String lemma, String pos) {
return MatrixState.pangeaController.getAnalytics.constructListModel.uses
.where(
(c) =>
c.lemma.toLowerCase() != lemma.toLowerCase() &&
c.category.toLowerCase() == pos.toLowerCase() &&
c.constructType == ConstructTypeEnum.vocab,
)
.toList();
static List<ConstructUses> eligibleDistractors(String lemma, String pos) {
final distractors =
MatrixState.pangeaController.getAnalytics.constructListModel
.constructList(type: ConstructTypeEnum.vocab)
.where(
(c) =>
c.lemma.toLowerCase() != lemma.toLowerCase() &&
c.category.toLowerCase() == pos.toLowerCase(),
)
.toList();
_hasDistractorsCache['${lemma.toLowerCase()}-${pos.toLowerCase()}'] =
distractors.isNotEmpty;
_cacheClearTimer ??= Timer.periodic(const Duration(minutes: 2), (Timer t) {
_hasDistractorsCache.clear();
});
return distractors;
}
/// From the cache, get a random set of cached definitions that are not for a specific lemma
@ -76,7 +92,7 @@ class LemmaMeaningActivityGenerator {
final eligible = eligibleDistractors(req.lemma, req.partOfSpeech);
eligible.shuffle();
final List<OneConstructUse> distractorConstructUses =
final List<ConstructUses> distractorConstructUses =
eligible.take(count).toList();
final List<Future<LemmaInfoResponse>> futureDefs = [];
@ -101,6 +117,13 @@ class LemmaMeaningActivityGenerator {
return distractorDefs.toList();
}
static bool canGenerateDistractors(String lemma, String pos) =>
eligibleDistractors(lemma, pos).isNotEmpty;
static bool canGenerateDistractors(String lemma, String pos) {
final cacheKey = '${lemma.toLowerCase()}-${pos.toLowerCase()}';
if (_hasDistractorsCache.containsKey(cacheKey)) {
return _hasDistractorsCache[cacheKey]!;
}
final distractors = eligibleDistractors(lemma, pos);
return distractors.isNotEmpty;
}
}