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Cache call to memories

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This commit is contained in:
Vishnu Mohandas 2021-04-27 21:36:24 +05:30
parent 30817ef8c7
commit 41237f85c8
1 changed files with 11 additions and 6 deletions
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17
lib/services/memories_service.dart
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@ -16,6 +16,7 @@ class MemoriesService extends ChangeNotifier {
static final daysAfter = 1;
List<Memory> _cachedMemories;
Future<List<Memory>> _future;
MemoriesService._privateConstructor();
@ -31,12 +32,22 @@ class MemoriesService extends ChangeNotifier {
void clearCache() {
_cachedMemories = null;
_future = null;
}
Future<List<Memory>> getMemories() async {
if (_cachedMemories != null) {
return _cachedMemories;
}
if (_future != null) {
return _future;
}
_future = _fetchMemories();
return _future;
}
Future<List<Memory>> _fetchMemories() async {
_logger.info("Fetching memories");
final presentTime = DateTime.now();
final present = presentTime.subtract(Duration(
hours: presentTime.hour,
@ -61,12 +72,6 @@ class MemoriesService extends ChangeNotifier {
memories.add(Memory(file, seenTime));
}
}
_logger.info("Number of memories: " + memories.length.toString());
final endTime = DateTime.now();
final duration = Duration(
microseconds: endTime.microsecondsSinceEpoch -
presentTime.microsecondsSinceEpoch);
_logger.info("Time taken: " + duration.inMilliseconds.toString() + "ms");
_cachedMemories = memories;
return _cachedMemories;
}