112 lines
3.3 KiB
Dart
112 lines
3.3 KiB
Dart
import 'dart:io' as io;
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import 'dart:typed_data';
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import 'package:path/path.dart';
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import 'package:dio/dio.dart';
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import 'package:flutter_cache_manager/flutter_cache_manager.dart';
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import 'package:flutter_image_compress/flutter_image_compress.dart';
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import 'package:photo_manager/photo_manager.dart';
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import 'package:photos/core/cache/image_cache.dart';
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import 'package:photos/core/cache/thumbnail_cache.dart';
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import 'package:photos/core/configuration.dart';
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import 'package:photos/core/constants.dart';
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import 'package:photos/db/files_db.dart';
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import 'package:photos/models/file.dart';
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import 'package:photos/models/file_type.dart';
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import 'crypto_util.dart';
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Future<void> deleteFiles(List<File> files,
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{bool deleteEveryWhere = false}) async {
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await PhotoManager.editor
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.deleteWithIds(files.map((file) => file.localID).toList());
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for (File file in files) {
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deleteEveryWhere
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? await FilesDB.instance.markForDeletion(file)
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: await FilesDB.instance.delete(file);
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}
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}
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void preloadFile(File file) {
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if (file.fileType == FileType.video) {
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return;
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}
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if (file.localID == null) {
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_getBytesFromServer(file);
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} else {
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if (FileLruCache.get(file) == null) {
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file.getAsset().then((asset) {
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asset.file.then((assetFile) {
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FileLruCache.put(file, assetFile);
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});
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});
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}
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}
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}
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void preloadLocalFileThumbnail(File file) {
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if (file.localID == null ||
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ThumbnailLruCache.get(file, THUMBNAIL_SMALL_SIZE) != null) {
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return;
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}
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file.getAsset().then((asset) {
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asset
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.thumbDataWithSize(THUMBNAIL_SMALL_SIZE, THUMBNAIL_SMALL_SIZE)
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.then((data) {
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ThumbnailLruCache.put(file, THUMBNAIL_SMALL_SIZE, data);
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});
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});
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}
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Future<Uint8List> getBytes(File file, {int quality = 100}) async {
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if (file.localID == null) {
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return _getBytesFromServer(file);
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} else {
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return await _getBytesFromDisk(file, quality);
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}
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}
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Future<Uint8List> _getBytesFromDisk(File file, int quality) async {
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final originalBytes = (await file.getAsset()).originBytes;
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if (extension(file.title) == ".HEIC" || quality != 100) {
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return originalBytes.then((bytes) {
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return FlutterImageCompress.compressWithList(bytes, quality: quality)
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.then((converted) {
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return Uint8List.fromList(converted);
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});
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});
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} else {
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return originalBytes;
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}
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}
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Future<Uint8List> _getBytesFromServer(File file) async {
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if (!file.isEncrypted) {
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return DefaultCacheManager()
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.getSingleFile(file.getDownloadUrl())
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.then((file) => file.readAsBytesSync());
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} else {
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return DefaultCacheManager()
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.getFileFromCache(file.getDownloadUrl())
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.then((info) {
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if (info == null) {
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return _downloadAndDecrypt(file);
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} else {
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return info.file.readAsBytesSync();
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}
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});
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}
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}
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Future<Uint8List> _downloadAndDecrypt(File file) async {
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final temporaryPath = Configuration.instance.getTempDirectory() +
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file.generatedID.toString() +
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".aes";
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return Dio().download(file.getDownloadUrl(), temporaryPath).then((_) async {
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final data = await CryptoUtil.decryptFileToData(
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temporaryPath, Configuration.instance.getKey());
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io.File(temporaryPath).deleteSync();
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DefaultCacheManager().putFile(file.getDownloadUrl(), data);
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return data;
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});
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}
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