82 lines
2.5 KiB
Dart
82 lines
2.5 KiB
Dart
import "dart:async";
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import "dart:io";
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import "package:flutter/foundation.dart";
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import "package:logging/logging.dart";
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import "package:path_provider/path_provider.dart";
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import "package:photos/core/network/network.dart";
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class RemoteAssetsService {
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static final _logger = Logger("RemoteAssetsService");
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RemoteAssetsService._privateConstructor();
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final StreamController<(String, int, int)> _progressController =
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StreamController<(String, int, int)>.broadcast();
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Stream<(String, int, int)> get progressStream => _progressController.stream;
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static final RemoteAssetsService instance =
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RemoteAssetsService._privateConstructor();
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Future<File> getAsset(String remotePath) async {
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final path = await _getLocalPath(remotePath);
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final file = File(path);
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if (await file.exists()) {
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_logger.info("Returning cached file for $remotePath");
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return file;
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} else {
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final tempFile = File(path + ".temp");
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await _downloadFile(remotePath, tempFile.path);
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await tempFile.rename(path);
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return File(path);
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}
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}
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Future<bool> hasAsset(String remotePath) async {
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final path = await _getLocalPath(remotePath);
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return File(path).exists();
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}
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Future<String> _getLocalPath(String remotePath) async {
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return (await getApplicationSupportDirectory()).path +
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"/assets/" +
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_urlToFileName(remotePath);
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}
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String _urlToFileName(String url) {
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// Remove the protocol part (http:// or https://)
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String fileName = url
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.replaceAll(RegExp(r'https?://'), '')
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// Replace all non-alphanumeric characters except for underscores and periods with an underscore
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.replaceAll(RegExp(r'[^\w\.]'), '_');
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// Optionally, you might want to trim the resulting string to a certain length
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// Replace periods with underscores for better readability, if desired
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fileName = fileName.replaceAll('.', '_');
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return fileName;
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}
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Future<void> _downloadFile(String url, String savePath) async {
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_logger.info("Downloading " + url);
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final existingFile = File(savePath);
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if (await existingFile.exists()) {
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await existingFile.delete();
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}
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await NetworkClient.instance.getDio().download(
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url,
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savePath,
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onReceiveProgress: (received, total) {
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if (received > 0 && total > 0) {
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_progressController.add((url, received, total));
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} else if (kDebugMode) {
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debugPrint("$url Received: $received, Total: $total");
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}
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},
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);
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_logger.info("Downloaded " + url);
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}
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}
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