451 lines
15 KiB
Dart
451 lines
15 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'dart:isolate';
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import 'dart:math';
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import 'package:flutter/services.dart';
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import 'package:jni/jni.dart';
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import 'package:k3vinb5_aniyomi_bridge/jni_isolate.dart';
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import 'package:k3vinb5_aniyomi_bridge/jni_isolate_message.dart';
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import 'package:k3vinb5_aniyomi_bridge/models/extension.dart';
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import 'package:logger/logger.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:path/path.dart' as path;
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import 'package:k3vinb5_aniyomi_bridge/jmodels/jvideo.dart';
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import 'package:k3vinb5_aniyomi_bridge/jmodels/jsanime.dart';
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import 'package:k3vinb5_aniyomi_bridge/jmodels/jsepisode.dart';
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import 'package:k3vinb5_aniyomi_bridge/jmodels/jsmanga.dart';
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import 'package:k3vinb5_aniyomi_bridge/jmodels/jschapter.dart';
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import 'package:k3vinb5_aniyomi_bridge/jmodels/jpage.dart';
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class AniyomiBridge {
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// static consts
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static const String _aniyomiBridgeAnimeExtensionsDir = "animeExtensions";
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static const String _aniyomiBridgeMangaExtensionsDir = "mangaExtensions";
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static const String _aniyomiBridgeDir = "aniyomibridge";
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static const String _aniyomiBridgeJarName = "aniyomibridge-core.jar";
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static const String _packageAssetsDir =
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"packages/k3vinb5_aniyomi_bridge/assets";
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static const Duration _cacheTtl = Duration(minutes: 20);
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// static variables
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static bool _isReady = false;
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static late final JniIsolate _jniIsolate;
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static late final ReceivePort _jniReceiverPort;
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static late final SendPort _jniSenderPort;
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// instance variables
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late final String _supportDirectoryPath;
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final Random _random = Random();
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final Logger _logger = Logger(
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printer: PrettyPrinter(methodCount: 9),
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level: Level.debug,
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// output: FileOutput(),
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filter: ProductionFilter(),
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);
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final Map<int, Completer> _pendingRequests = {};
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final Map<String, (int, dynamic)> _responsesCache = {};
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AniyomiBridge() {
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_initJvm();
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}
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Future<void> _initJvm() async {
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if (_isReady) {
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return;
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}
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Directory supportDirectory = await getApplicationSupportDirectory();
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_supportDirectoryPath = supportDirectory.path;
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await _loadJarIfNeeded(supportDirectory);
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Jni.setDylibDir(dylibDir: _getDylibDir(supportDirectory));
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_jniIsolate = JniIsolate();
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final readyPort = ReceivePort();
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_jniReceiverPort = ReceivePort();
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(bool, SendPort) response = await _jniIsolate.initJniIsolate(
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readyPort,
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_jniReceiverPort,
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supportDirectory,
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_getDylibDir(supportDirectory),
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_getClassPath(supportDirectory),
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);
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_isReady = response.$1;
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_jniSenderPort = response.$2;
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_jniReceiverPort.listen((message) {
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if (message is JniIsolateError) {
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final id = message.id;
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final completer = _pendingRequests.remove(id);
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if (completer == null) return;
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completer.completeError(message.error);
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} else if (message is JniIsolateResponse) {
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final id = message.id;
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final completer = _pendingRequests.remove(id);
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if (completer == null) return;
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if (message.results == null) {
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completer.complete();
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return;
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}
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completer.complete(message.results);
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}
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});}
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bool isReady() {
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return _isReady;
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}
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Future<List<JSAnime>> getAnimeSearchResults(String query, int page, String source) async {
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Map<String, dynamic> args = {
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'query': query,
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'page': page,
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'source': source,
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};
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Future<List<JSAnime>>? cachedResponse = _getCachedResponse<Future<List<JSAnime>>>(JniIsolateMessageType.getAnimeSearchResults, args);
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if (cachedResponse != null) return cachedResponse;
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Future<List<JSAnime>> response = _sendJniIsolateMessage<List<JSAnime>>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.getAnimeSearchResults,
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args: args,
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),
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);
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_cacheResponse(response, JniIsolateMessageType.getAnimeSearchResults, args);
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return response;
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}
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Future<List<JSManga>> getMangaSearchResults(String query, int page, String source) async {
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Map<String, dynamic> args = {
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'query': query,
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'page': page,
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'source': source,
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};
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Future<List<JSManga>>? cachedResponse = _getCachedResponse<Future<List<JSManga>>>(JniIsolateMessageType.getMangaSearchResults, args);
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if (cachedResponse != null) return cachedResponse;
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Future<List<JSManga>> response = _sendJniIsolateMessage<List<JSManga>>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.getMangaSearchResults,
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args: args,
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),
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);
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_cacheResponse(response, JniIsolateMessageType.getMangaSearchResults, args);
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return response;
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}
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Future<List<JSEpisode>> getEpisodeList(JSAnime sAnime, String source) async {
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Map<String, dynamic> args = {
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'sAnime': sAnime,
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'source': source,
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};
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Future<List<JSEpisode>>? cachedResponse = _getCachedResponse<Future<List<JSEpisode>>>(JniIsolateMessageType.getEpisodeList, args);
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if (cachedResponse != null) return cachedResponse;
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Future<List<JSEpisode>> response = _sendJniIsolateMessage<List<JSEpisode>>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.getEpisodeList,
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args: args,
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),
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);
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_cacheResponse(response, JniIsolateMessageType.getEpisodeList, args);
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return response;
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}
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Future<List<JSChapter>> getChapterList(JSManga sManga, String source) async {
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Map<String, dynamic> args = {
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'sManga': sManga,
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'source': source,
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};
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Future<List<JSChapter>>? cachedResponse = _getCachedResponse<Future<List<JSChapter>>>(JniIsolateMessageType.getChapterList, args);
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if (cachedResponse != null) return cachedResponse;
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Future<List<JSChapter>> response = _sendJniIsolateMessage<List<JSChapter>>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.getChapterList,
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args: args,
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),
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);
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_cacheResponse(response, JniIsolateMessageType.getChapterList, args);
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return response;
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}
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Future<List<JVideo>> getVideoList(JSEpisode sEpisode, String source) async {
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Map<String, dynamic> args = {
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'sEpisode': sEpisode,
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'source': source,
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};
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Future<List<JVideo>>? cachedResponse = _getCachedResponse<Future<List<JVideo>>>(JniIsolateMessageType.getVideoList, args);
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if (cachedResponse != null) return cachedResponse;
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Future<List<JVideo>> response = _sendJniIsolateMessage<List<JVideo>>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.getVideoList,
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args: args,
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),
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);
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_cacheResponse(response, JniIsolateMessageType.getVideoList, args);
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return response;
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}
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Future<List<JPage>> getPageList(JSChapter sChapter, String source) async {
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Map<String, dynamic> args = {
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'sChapter': sChapter,
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'source': source,
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};
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Future<List<JPage>>? cachedResponse = _getCachedResponse<Future<List<JPage>>>(JniIsolateMessageType.getPageList, args);
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if (cachedResponse != null) return cachedResponse;
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Future<List<JPage>> response = _sendJniIsolateMessage<List<JPage>>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.getPageList,
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args: args,
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),
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);
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_cacheResponse(response, JniIsolateMessageType.getPageList, args);
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return response;
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}
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Future<void> loadAnimeExtension(String extensionUrl) async {
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return _sendJniIsolateMessage<void>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.loadAnimeExtension,
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args: {
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'extensionUrl': extensionUrl,
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},
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),
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);
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}
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Future<void> unloadAnimeExtension(String extensionName, String extensionVersion) async {
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return _sendJniIsolateMessage<void>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.unloadAnimeExtension,
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args: {
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'extensionName': extensionName,
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'extensionVersion': extensionVersion,
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},
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),
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);
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}
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Future<void> loadMangaExtension(String extensionUrl) async {
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return _sendJniIsolateMessage<void>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.loadMangaExtension,
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args: {
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'extensionUrl': extensionUrl,
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},
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),
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);
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}
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Future<void> unloadMangaExtension(String extensionName, String extensionVersion) async {
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return _sendJniIsolateMessage<void>(
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JniIsolateMessage(
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id: _random.nextInt(1 << 32),
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type: JniIsolateMessageType.unloadMangaExtension,
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args: {
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'extensionName': extensionName,
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'extensionVersion': extensionVersion,
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},
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),
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);
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}
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Future<Set<Extension>> getInstalledAnimeExtensions() async {
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Directory animeExtDir = Directory(
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path.join(_supportDirectoryPath, _aniyomiBridgeAnimeExtensionsDir),
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);
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Set<Extension> extensions = await animeExtDir
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.list()
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.where((entityFileSystem) => entityFileSystem is File)
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.where((file) => path.extension(file.path) == ".jar")
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.map((jarFile) => path.basename(jarFile.path))
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.map(
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(jarFileName) => Extension(
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name: jarFileName.split("-")[0],
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version: jarFileName.split("-")[1],
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),
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)
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.toSet();
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return extensions;
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}
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Future<Set<Extension>> getInstalledMangaExtensions() async {
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Directory mangaExtDir = Directory(
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path.join(_supportDirectoryPath, _aniyomiBridgeMangaExtensionsDir),
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);
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Set<Extension> extensions = await mangaExtDir
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.list()
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.where((entityFileSystem) => entityFileSystem is File)
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.where((file) => path.extension(file.path) == ".jar")
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.map((jarFile) => path.basename(jarFile.path))
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.map(
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(jarFileName) => Extension(
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name: jarFileName.split("-")[0],
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version: jarFileName.split("-")[1],
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),
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)
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.toSet();
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return extensions;
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}
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// List<String>? getLoadedAnimeExtensions() {
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// JList<JString?>? loadedExtensions = _jAniyomiBridge
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// .getAnimeLoadedExtensions();
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// if (loadedExtensions == null) {
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// return null;
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// }
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// return loadedExtensions
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// .cast<JString>()
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// .map((jStr) => jStr.toDartString())
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// .toList();
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// }
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//
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// List<String>? getLoadedMangaExtensions() {
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// JList<JString?>? loadedExtensions = _jAniyomiBridge
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// .getMangaLoadedExtensions();
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// if (loadedExtensions == null) {
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// return null;
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// }
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// return loadedExtensions
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// .cast<JString>()
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// .map((jStr) => jStr.toDartString())
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// .toList();
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// }
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Future<T> _sendJniIsolateMessage<T>(JniIsolateMessage message) {
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final completer = Completer<T>();
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_pendingRequests[message.id] = completer;
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_jniSenderPort.send(message);
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return completer.future.timeout(
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const Duration(seconds: 20),
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onTimeout: () => throw TimeoutException("JNI Isolate timed out")
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);
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}
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String _getDylibDir(Directory supportDirectory) {
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String executablePath = File(Platform.resolvedExecutable).parent.path;
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if (Platform.isLinux) {
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return path.join(executablePath, "jre", "customjre", "lib", "server");
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} else if (Platform.isMacOS) {
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return path.join(
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executablePath,
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"..",
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"Resources",
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"jre",
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"customjre",
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"lib",
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"server",
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);
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} else if (Platform.isWindows) {
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return path.join(
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executablePath,
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"..",
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"jre",
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"customjre",
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"lib",
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"server",
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);
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} else {
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throw UnsupportedError("Unsupported platform");
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}
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}
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List<String> _getClassPath(Directory supportDirectory) {
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return [
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path.join(
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supportDirectory.absolute.path,
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_aniyomiBridgeDir,
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_aniyomiBridgeJarName,
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),
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];
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}
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Future<void> _loadJarIfNeeded(Directory supportDirectory) async {
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String aniyomiBridgeCorePath = path.join(
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supportDirectory.path,
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_aniyomiBridgeDir,
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_aniyomiBridgeJarName,
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);
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File aniyomiBridgeCore = File(aniyomiBridgeCorePath);
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if (!(await aniyomiBridgeCore.exists())) {
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await _copyAssetToFile(
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"$_packageAssetsDir/$_aniyomiBridgeJarName",
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aniyomiBridgeCorePath,
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);
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}
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}
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Future<File> _copyAssetToFile(String assetPath, String outPath) async {
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final byteData = await rootBundle.load(assetPath);
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final buffer = byteData.buffer.asUint8List();
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final file = File(outPath);
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await file.parent.create(recursive: true);
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await file.writeAsBytes(buffer, flush: true);
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return file;
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}
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T? _getCachedResponse<T>(JniIsolateMessageType messageType, Map<String, dynamic> args) {
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// if (!_isCacheable(messageType)) return null;
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final cacheKey = _generateCacheKey(messageType, args);
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if (_responsesCache.containsKey(cacheKey)) {
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_logger.d("Cached response found for ${messageType.name}");
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try {
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final (expiry, cachedResponse as T) =
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_responsesCache[cacheKey]!;
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if (expiry < DateTime.now().millisecondsSinceEpoch) {
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_logger.d(
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"Cached response for ${messageType.name} with cache key $cacheKey has expired, making new request",
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);
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_responsesCache.remove(cacheKey);
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} else {
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_logger.d("Cached response for ${messageType.name} with cache key $cacheKey is still valid for ${(expiry - DateTime.now().millisecondsSinceEpoch) / 1000}s");
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return cachedResponse;
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}
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} catch (e, stackTrace) {
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_logger.e(
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"Error while retrieving cached response for ${messageType.name}: $e",
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stackTrace: stackTrace,
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);
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_responsesCache.remove(cacheKey);
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return null;
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}
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}
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_logger.d("No cached response found for ${messageType.name} with cache key $cacheKey");
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return null;
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}
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void _cacheResponse<T>(T response, JniIsolateMessageType messageType, Map<String, dynamic> args) {
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final cacheKey = _generateCacheKey(messageType, args);
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_logger.d("Caching response for ${messageType.name} with cache key $cacheKey");
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_responsesCache[cacheKey] =
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(
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DateTime.now().millisecondsSinceEpoch + _cacheTtl.inMilliseconds,
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response,
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);
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}
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String _generateCacheKey(JniIsolateMessageType messageType, Map<String, dynamic> args) {
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// Create a stable string representation of the args
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// final argsString = jsonEncode(args);
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final argsString = args.entries
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.map((entry) => "${entry.key}:${_getStableHashCode(entry.value)}")
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.join(":").hashCode;
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return "${messageType.name}_$argsString";
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}
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int _getStableHashCode(dynamic value) {
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if (value is JSEpisode) {
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return value.getUrl().toDartString().hashCode;
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}else if (value is JSAnime) {
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return value.getUrl().toDartString().hashCode;
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} else if (value is JSManga) {
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return value.getUrl().toDartString().hashCode;
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} else if (value is JSChapter) {
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return value.getUrl().toDartString().hashCode;
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}
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return value.hashCode;
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}
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}
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