148 lines
5.1 KiB
Dart
148 lines
5.1 KiB
Dart
import 'dart:async';
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import 'dart:core';
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import 'dart:io';
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import 'package:logging/logging.dart';
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import 'package:photo_manager/photo_manager.dart';
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import 'package:photos/db/file_migration_db.dart';
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import 'package:photos/db/files_db.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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// LocalFileUpdateService tracks all the potential local file IDs which have
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// changed/modified on the device and needed to be uploaded again.
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class LocalFileUpdateService {
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FilesDB _filesDB;
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FilesMigrationDB _filesMigrationDB;
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SharedPreferences _prefs;
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Logger _logger;
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static const isLocationMigrationComplete = "fm_isLocationMigrationComplete";
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static const isLocalImportDone = "fm_IsLocalImportDone";
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Completer<void> _existingMigration;
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LocalFileUpdateService._privateConstructor() {
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_logger = Logger((LocalFileUpdateService).toString());
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_filesDB = FilesDB.instance;
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_filesMigrationDB = FilesMigrationDB.instance;
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}
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Future<void> init() async {
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_prefs = await SharedPreferences.getInstance();
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}
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static LocalFileUpdateService instance =
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LocalFileUpdateService._privateConstructor();
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Future<bool> _markLocationMigrationAsCompleted() async {
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_logger.info('marking migration as completed');
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return _prefs.setBool(isLocationMigrationComplete, true);
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}
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bool isLocationMigrationCompleted() {
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return _prefs.get(isLocationMigrationComplete) ?? false;
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}
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Future<void> markUpdatedFilesForReUpload() async {
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if (_existingMigration != null) {
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_logger.info("migration is already in progress, skipping");
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return _existingMigration.future;
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}
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_existingMigration = Completer<void>();
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try {
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if (!isLocationMigrationCompleted() && Platform.isAndroid) {
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_logger.info("start migration for missing location");
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await _runMigrationForFilesWithMissingLocation();
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}
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_existingMigration.complete();
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_existingMigration = null;
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} catch (e, s) {
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_logger.severe('failed to perform migration', e, s);
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_existingMigration.complete();
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_existingMigration = null;
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}
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}
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Future<void> _runMigrationForFilesWithMissingLocation() async {
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if (!Platform.isAndroid) {
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return;
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}
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// migration only needs to run if Android API Level is 29 or higher
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final int version = int.parse(await PhotoManager.systemVersion());
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bool isMigrationRequired = version >= 29;
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if (isMigrationRequired) {
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await _importLocalFilesForMigration();
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final sTime = DateTime.now().microsecondsSinceEpoch;
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bool hasData = true;
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const int limitInBatch = 100;
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while (hasData) {
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var localIDsToProcess =
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await _filesMigrationDB.getLocalIDsForPotentialReUpload(
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limitInBatch,
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FilesMigrationDB.missingLocation,
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);
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if (localIDsToProcess.isEmpty) {
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hasData = false;
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} else {
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await _checkAndMarkFilesForReUpload(localIDsToProcess);
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}
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}
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final eTime = DateTime.now().microsecondsSinceEpoch;
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final d = Duration(microseconds: eTime - sTime);
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_logger.info(
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'filesWithMissingLocation migration completed in ${d.inSeconds.toString()} seconds',
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);
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}
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await _markLocationMigrationAsCompleted();
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}
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Future<void> _checkAndMarkFilesForReUpload(
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List<String> localIDsToProcess,
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) async {
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_logger.info("files to process ${localIDsToProcess.length}");
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var localIDsWithLocation = <String>[];
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for (var localID in localIDsToProcess) {
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bool hasLocation = false;
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try {
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var assetEntity = await AssetEntity.fromId(localID);
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if (assetEntity == null) {
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continue;
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}
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var latLng = await assetEntity.latlngAsync();
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if ((latLng.longitude ?? 0.0) != 0.0 ||
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(latLng.longitude ?? 0.0) != 0.0) {
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_logger.finest(
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'found lat/long ${latLng.longitude}/${latLng.longitude} for ${assetEntity.title} ${assetEntity.relativePath} with id : $localID',
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);
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hasLocation = true;
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}
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} catch (e, s) {
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_logger.severe('failed to get asset entity with id $localID', e, s);
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}
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if (hasLocation) {
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localIDsWithLocation.add(localID);
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}
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}
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_logger.info('marking ${localIDsWithLocation.length} files for re-upload');
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await _filesDB.markForReUploadIfLocationMissing(localIDsWithLocation);
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await _filesMigrationDB.deleteByLocalIDs(localIDsToProcess);
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}
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Future<void> _importLocalFilesForMigration() async {
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if (_prefs.containsKey(isLocalImportDone)) {
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return;
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}
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final sTime = DateTime.now().microsecondsSinceEpoch;
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_logger.info('importing files without location info');
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var fileLocalIDs = await _filesDB.getLocalFilesBackedUpWithoutLocation();
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await _filesMigrationDB.insertMultiple(
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fileLocalIDs,
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reason: FilesMigrationDB.missingLocation,
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);
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final eTime = DateTime.now().microsecondsSinceEpoch;
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final d = Duration(microseconds: eTime - sTime);
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_logger.info(
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'importing completed, total files count ${fileLocalIDs.length} and took ${d.inSeconds.toString()} seconds',
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);
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await _prefs.setBool(isLocalImportDone, true);
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}
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}
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