84 lines
3 KiB
Dart
84 lines
3 KiB
Dart
import 'package:flutter/foundation.dart';
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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/filters/important_items_filter.dart';
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import 'package:photos/models/memory.dart';
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import 'package:photos/utils/date_time_util.dart';
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class MemoriesService extends ChangeNotifier {
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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 yearsBefore = 30;
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static final daysBefore = 7;
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static final daysAfter = 1;
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MemoriesService._privateConstructor();
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static final MemoriesService instance = MemoriesService._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 filter = ImportantItemsFilter();
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final files = List<File>();
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final presentTime = DateTime.now();
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final present = presentTime.subtract(Duration(
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hours: presentTime.hour,
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minutes: presentTime.minute,
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seconds: presentTime.second));
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for (var yearAgo = 1; yearAgo <= yearsBefore; yearAgo++) {
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final date = _getDate(present, yearAgo);
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final startCreationTime =
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date.subtract(Duration(days: daysBefore)).microsecondsSinceEpoch;
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final endCreationTime =
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date.add(Duration(days: daysAfter)).microsecondsSinceEpoch;
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final filesInYear = await _filesDB.getFilesCreatedWithinDuration(
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startCreationTime, endCreationTime);
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if (filesInYear.length > 0)
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_logger.info("Got " +
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filesInYear.length.toString() +
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" memories between " +
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getFormattedTime(
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DateTime.fromMicrosecondsSinceEpoch(startCreationTime)) +
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" to " +
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getFormattedTime(
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DateTime.fromMicrosecondsSinceEpoch(endCreationTime)));
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files.addAll(filesInYear);
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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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if (filter.shouldInclude(file)) {
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memories.add(Memory(file, seenFileIDs.contains(file.generatedId)));
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}
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}
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_logger.info("Number of memories: " + memories.length.toString());
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return memories;
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}
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DateTime _getDate(DateTime present, int yearAgo) {
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final year = (present.year - yearAgo).toString();
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final month = present.month > 9
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? present.month.toString()
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: "0" + present.month.toString();
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final day =
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present.day > 9 ? present.day.toString() : "0" + present.day.toString();
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final date = DateTime.parse(year + "-" + month + "-" + day);
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return date;
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}
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Future markMemoryAsSeen(Memory memory) async {
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await _memoriesDB.markMemoryAsSeen(
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memory, DateTime.now().microsecondsSinceEpoch);
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notifyListeners();
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}
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}
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