platform clients
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@@ -1,148 +1,25 @@
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import 'package:flutter_cache_manager/flutter_cache_manager.dart';
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// ignore: implementation_imports
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import 'package:flutter_cache_manager/src/cache_store.dart';
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import 'package:logging/logging.dart';
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import 'package:uuid/uuid.dart';
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abstract class RemoteCacheManager extends CacheManager {
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static final _log = Logger('RemoteCacheManager');
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RemoteCacheManager.custom(super.config, CacheStore store)
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// Unfortunately, CacheStore is not a public API
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// ignore: invalid_use_of_visible_for_testing_member
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: super.custom(cacheStore: store);
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Future<void> putStreamedFile(
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String url,
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Stream<List<int>> source, {
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String? key,
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String? eTag,
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Duration maxAge = const Duration(days: 30),
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String fileExtension = 'file',
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});
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// Unlike `putFileStream`, this method handles request cancellation,
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// does not make a (slow) DB call checking if the file is already cached,
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// does not synchronously check if a file exists,
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// and deletes the file on cancellation without making these checks again.
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Future<void> putStreamedFileToStore(
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CacheStore store,
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String url,
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Stream<List<int>> source, {
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String? key,
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String? eTag,
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Duration maxAge = const Duration(days: 30),
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String fileExtension = 'file',
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}) async {
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final path = '${const Uuid().v1()}.$fileExtension';
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final file = await store.fileSystem.createFile(path);
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final sink = file.openWrite();
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try {
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await source.listen(sink.add, cancelOnError: true).asFuture();
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} catch (e) {
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try {
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await sink.close();
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await file.delete();
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} catch (e) {
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_log.severe('Failed to delete incomplete cache file: $e');
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}
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return;
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}
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try {
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await sink.flush();
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await sink.close();
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} catch (e) {
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try {
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await file.delete();
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} catch (e) {
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_log.severe('Failed to delete incomplete cache file: $e');
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}
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return;
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}
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final cacheObject = CacheObject(
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url,
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key: key,
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relativePath: path,
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validTill: DateTime.now().add(maxAge),
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eTag: eTag,
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);
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try {
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await store.putFile(cacheObject);
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} catch (e) {
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try {
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await file.delete();
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} catch (e) {
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_log.severe('Failed to delete untracked cache file: $e');
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}
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}
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}
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}
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class RemoteImageCacheManager extends RemoteCacheManager {
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class RemoteImageCacheManager extends CacheManager {
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static const key = 'remoteImageCacheKey';
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static final RemoteImageCacheManager _instance = RemoteImageCacheManager._();
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static final _config = Config(key, maxNrOfCacheObjects: 500, stalePeriod: const Duration(days: 30));
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static final _store = CacheStore(_config);
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factory RemoteImageCacheManager() {
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return _instance;
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}
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RemoteImageCacheManager._() : super.custom(_config, _store);
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@override
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Future<void> putStreamedFile(
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String url,
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Stream<List<int>> source, {
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String? key,
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String? eTag,
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Duration maxAge = const Duration(days: 30),
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String fileExtension = 'file',
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}) {
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return putStreamedFileToStore(
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_store,
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url,
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source,
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key: key,
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eTag: eTag,
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maxAge: maxAge,
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fileExtension: fileExtension,
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);
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}
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RemoteImageCacheManager._() : super(_config);
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}
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/// The cache manager for full size images [ImmichRemoteImageProvider]
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class RemoteThumbnailCacheManager extends RemoteCacheManager {
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class RemoteThumbnailCacheManager extends CacheManager {
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static const key = 'remoteThumbnailCacheKey';
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static final RemoteThumbnailCacheManager _instance = RemoteThumbnailCacheManager._();
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static final _config = Config(key, maxNrOfCacheObjects: 5000, stalePeriod: const Duration(days: 30));
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static final _store = CacheStore(_config);
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factory RemoteThumbnailCacheManager() {
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return _instance;
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}
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RemoteThumbnailCacheManager._() : super.custom(_config, _store);
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@override
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Future<void> putStreamedFile(
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String url,
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Stream<List<int>> source, {
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String? key,
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String? eTag,
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Duration maxAge = const Duration(days: 30),
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String fileExtension = 'file',
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}) {
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return putStreamedFileToStore(
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_store,
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url,
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source,
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key: key,
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eTag: eTag,
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maxAge: maxAge,
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fileExtension: fileExtension,
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);
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}
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RemoteThumbnailCacheManager._() : super(_config);
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}
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