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Merge pull request #302 from pangeachat/practice
[WIP] Practice
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102 changes: 102 additions & 0 deletions
102
lib/pangea/controllers/practice_activity_generation_controller.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| import 'dart:async'; | ||
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| import 'package:fluffychat/pangea/constants/pangea_event_types.dart'; | ||
| import 'package:fluffychat/pangea/enum/activity_type_enum.dart'; | ||
| import 'package:fluffychat/pangea/enum/construct_type_enum.dart'; | ||
| import 'package:fluffychat/pangea/extensions/pangea_room_extension/pangea_room_extension.dart'; | ||
| import 'package:fluffychat/pangea/matrix_event_wrappers/pangea_message_event.dart'; | ||
| import 'package:fluffychat/pangea/matrix_event_wrappers/practice_activity_event.dart'; | ||
| import 'package:fluffychat/pangea/models/practice_activities.dart/multiple_choice_activity_model.dart'; | ||
| import 'package:fluffychat/pangea/models/practice_activities.dart/practice_activity_model.dart'; | ||
| import 'package:matrix/matrix.dart'; | ||
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| /// Represents an item in the completion cache. | ||
| class _RequestCacheItem { | ||
| PracticeActivityRequest req; | ||
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| Future<PracticeActivityEvent?> practiceActivityEvent; | ||
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| _RequestCacheItem({ | ||
| required this.req, | ||
| required this.practiceActivityEvent, | ||
| }); | ||
| } | ||
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| /// Controller for handling activity completions. | ||
| class PracticeGenerationController { | ||
| static final Map<int, _RequestCacheItem> _cache = {}; | ||
| Timer? _cacheClearTimer; | ||
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| PracticeGenerationController() { | ||
| _initializeCacheClearing(); | ||
| } | ||
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| void _initializeCacheClearing() { | ||
| const duration = Duration(minutes: 2); | ||
| _cacheClearTimer = Timer.periodic(duration, (Timer t) => _clearCache()); | ||
| } | ||
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| void _clearCache() { | ||
| _cache.clear(); | ||
| } | ||
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| void dispose() { | ||
| _cacheClearTimer?.cancel(); | ||
| } | ||
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| Future<PracticeActivityEvent?> _sendAndPackageEvent( | ||
| PracticeActivityModel model, | ||
| PangeaMessageEvent pangeaMessageEvent, | ||
| ) async { | ||
| final Event? activityEvent = await pangeaMessageEvent.room.sendPangeaEvent( | ||
| content: model.toJson(), | ||
| parentEventId: pangeaMessageEvent.eventId, | ||
| type: PangeaEventTypes.pangeaActivityRes, | ||
| ); | ||
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| if (activityEvent == null) { | ||
| return null; | ||
| } | ||
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| return PracticeActivityEvent( | ||
| event: activityEvent, | ||
| timeline: pangeaMessageEvent.timeline, | ||
| ); | ||
| } | ||
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| Future<PracticeActivityEvent?> getPracticeActivity( | ||
| PracticeActivityRequest req, | ||
| PangeaMessageEvent event, | ||
| ) async { | ||
| final int cacheKey = req.hashCode; | ||
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| if (_cache.containsKey(cacheKey)) { | ||
| return _cache[cacheKey]!.practiceActivityEvent; | ||
| } else { | ||
| //TODO - send request to server/bot, either via API or via event of type pangeaActivityReq | ||
| // for now, just make and send the event from the client | ||
| final Future<PracticeActivityEvent?> eventFuture = | ||
| _sendAndPackageEvent(dummyModel(event), event); | ||
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| _cache[cacheKey] = | ||
| _RequestCacheItem(req: req, practiceActivityEvent: eventFuture); | ||
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| return _cache[cacheKey]!.practiceActivityEvent; | ||
| } | ||
| } | ||
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| PracticeActivityModel dummyModel(PangeaMessageEvent event) => | ||
| PracticeActivityModel( | ||
| tgtConstructs: [ | ||
| ConstructIdentifier(lemma: "be", type: ConstructType.vocab), | ||
| ], | ||
| activityType: ActivityTypeEnum.multipleChoice, | ||
| langCode: event.messageDisplayLangCode, | ||
| msgId: event.eventId, | ||
| multipleChoice: MultipleChoice( | ||
| question: "What is a synonym for 'happy'?", | ||
| choices: ["sad", "angry", "joyful", "tired"], | ||
| answer: "joyful", | ||
| ), | ||
| ); | ||
| } |
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