50 lines
1.7 KiB
Dart
50 lines
1.7 KiB
Dart
import 'package:logging/logging.dart';
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import 'package:photos/db/files_db.dart';
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import 'package:photos/db/memories_db.dart';
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import 'package:photos/models/file.dart';
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import 'package:photos/models/memory.dart';
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class MemoryService {
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final _logger = Logger("MemoryService");
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final _memoriesDB = MemoriesDB.instance;
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final _filesDB = FilesDB.instance;
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static final microSecondsInADay = 86400000000;
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static final daysInAYear = 365;
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static final daysBefore = 7;
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static final daysAfter = 1;
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MemoryService._privateConstructor();
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static final MemoryService instance = MemoryService._privateConstructor();
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Future<void> init() async {
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await _memoriesDB.clearMemoriesSeenBeforeTime(
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DateTime.now().microsecondsSinceEpoch - (7 * microSecondsInADay));
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}
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Future<List<Memory>> getMemories() async {
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final files = List<File>();
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for (var yearAgo = 1; yearAgo <= 100; yearAgo++) {
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var now = DateTime.now().microsecondsSinceEpoch;
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var checkPointDay = yearAgo * daysInAYear;
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final startCreationTime =
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now - ((checkPointDay - daysBefore) * microSecondsInADay);
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final endCreationTime =
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now - ((checkPointDay + daysAfter) * microSecondsInADay);
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files.addAll(await _filesDB.getFilesCreatedWithinDuration(
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startCreationTime, endCreationTime));
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}
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final seenFileIDs = await _memoriesDB.getSeenFileIDs();
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final memories = List<Memory>();
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for (final file in files) {
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memories.add(Memory(file, seenFileIDs.contains(file.generatedId)));
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}
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return memories;
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}
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Future markMemoryAsSeen(Memory memory) async {
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return _memoriesDB.markMemoryAsSeen(
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memory, DateTime.now().microsecondsSinceEpoch);
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}
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}
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