Initial commit
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admin1
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import 'dart:async';
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import 'package:dio/dio.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../core/contracts/app_update.dart';
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import '../features/update/update_service.dart';
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import '../shared/utils/app_logger.dart';
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import 'shared/settings_persistence.dart';
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enum UpdateStatus {
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idle,
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checking,
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upToDate,
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available,
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downloading,
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readyToInstall,
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error,
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}
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class UpdateState {
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final UpdateStatus status;
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final AppUpdateInfo? info;
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final int received;
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final int total;
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final double speedBytesPerSec;
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final String? error;
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final bool silent;
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final String? installerPath;
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const UpdateState({
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this.status = UpdateStatus.idle,
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this.info,
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this.received = 0,
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this.total = 0,
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this.speedBytesPerSec = 0,
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this.error,
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this.silent = false,
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this.installerPath,
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});
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UpdateState copyWith({
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UpdateStatus? status,
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AppUpdateInfo? info,
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int? received,
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int? total,
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double? speedBytesPerSec,
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String? error,
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bool? silent,
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String? installerPath,
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bool clearInfo = false,
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bool clearError = false,
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bool clearInstallerPath = false,
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}) {
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return UpdateState(
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status: status ?? this.status,
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info: clearInfo ? null : info ?? this.info,
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received: received ?? this.received,
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total: total ?? this.total,
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speedBytesPerSec: speedBytesPerSec ?? this.speedBytesPerSec,
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error: clearError ? null : error ?? this.error,
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silent: silent ?? this.silent,
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installerPath: clearInstallerPath
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? null
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: installerPath ?? this.installerPath,
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);
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}
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}
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final updateProvider = NotifierProvider<UpdateNotifier, UpdateState>(
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UpdateNotifier.new,
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);
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class UpdateNotifier extends Notifier<UpdateState> with SettingsPersistence {
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static const _tag = 'Update';
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static const _lastCheckKey = 'smplayer.update.last_check';
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static const _silentThrottle = Duration(hours: 12);
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final UpdateService _service;
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CancelToken? _cancelToken;
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DateTime? _lastSpeedSampleAt;
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int _lastSpeedSampleBytes = 0;
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UpdateNotifier({UpdateService? service})
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: _service = service ?? UpdateService();
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@override
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UpdateState build() => const UpdateState();
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Future<void> silentCheck() async {
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final prefs = await getPrefs();
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final lastCheck = prefs.getInt(_lastCheckKey);
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final now = DateTime.now().millisecondsSinceEpoch;
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if (lastCheck != null && now - lastCheck < _silentThrottle.inMilliseconds) {
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AppLogger.debug(_tag, 'silent check throttled');
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return;
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}
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try {
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await prefs.setInt(_lastCheckKey, now);
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state = state.copyWith(
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status: UpdateStatus.checking,
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silent: true,
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received: 0,
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total: 0,
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clearError: true,
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clearInstallerPath: true,
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);
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final result = await _service.check();
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if (result.hasUpdate && result.info != null) {
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state = state.copyWith(
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status: UpdateStatus.available,
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info: result.info,
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silent: true,
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);
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} else {
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state = state.copyWith(
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status: UpdateStatus.idle,
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silent: true,
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clearInfo: true,
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);
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}
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} catch (e) {
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AppLogger.warn(_tag, 'silent check failed', e);
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state = state.copyWith(
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status: UpdateStatus.idle,
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silent: true,
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clearError: true,
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);
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}
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}
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Future<void> manualCheck() async {
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try {
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state = state.copyWith(
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status: UpdateStatus.checking,
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silent: false,
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received: 0,
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total: 0,
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clearError: true,
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clearInstallerPath: true,
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);
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final result = await _service.check();
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await persistField(_lastCheckKey, DateTime.now().millisecondsSinceEpoch);
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if (result.hasUpdate && result.info != null) {
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state = state.copyWith(
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status: UpdateStatus.available,
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info: result.info,
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silent: false,
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);
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} else {
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state = state.copyWith(
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status: UpdateStatus.upToDate,
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silent: false,
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clearInfo: true,
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);
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}
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} catch (e, stack) {
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AppLogger.error(_tag, 'manual check failed', e, stack);
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state = state.copyWith(
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status: UpdateStatus.error,
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error: '检查更新失败，请稍后重试',
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silent: false,
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);
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}
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}
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Future<void> startDownload() async {
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final info = state.info;
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final asset = info?.selectedAsset;
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if (info == null || asset == null) return;
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_cancelToken?.cancel('restart download');
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final cancelToken = CancelToken();
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_cancelToken = cancelToken;
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_lastSpeedSampleAt = null;
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_lastSpeedSampleBytes = 0;
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try {
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state = state.copyWith(
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status: UpdateStatus.downloading,
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received: 0,
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total: asset.size,
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speedBytesPerSec: 0,
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clearError: true,
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clearInstallerPath: true,
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);
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final file = await _service.download(
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asset,
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cancelToken: cancelToken,
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onReceiveProgress: (received, total) {
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if (cancelToken.isCancelled) return;
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state = state.copyWith(
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status: UpdateStatus.downloading,
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received: received,
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total: total > 0 ? total : asset.size,
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speedBytesPerSec: _sampleSpeed(received),
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);
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},
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);
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if (cancelToken.isCancelled) return;
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state = state.copyWith(
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status: UpdateStatus.readyToInstall,
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received: state.total,
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speedBytesPerSec: 0,
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installerPath: file.path,
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clearError: true,
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);
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} on UpdateVerificationException catch (e, stack) {
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AppLogger.error(_tag, 'update verification failed', e, stack);
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state = state.copyWith(
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status: UpdateStatus.error,
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speedBytesPerSec: 0,
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error: e.message,
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);
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return;
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} on DioException catch (e, stack) {
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if (CancelToken.isCancel(e)) {
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state = state.copyWith(
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status: UpdateStatus.available,
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received: 0,
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total: asset.size,
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speedBytesPerSec: 0,
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clearError: true,
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);
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return;
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}
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AppLogger.error(_tag, 'download failed', e, stack);
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state = state.copyWith(
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status: UpdateStatus.error,
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speedBytesPerSec: 0,
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error: '下载失败，请稍后重试',
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);
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} catch (e, stack) {
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AppLogger.error(_tag, 'download failed', e, stack);
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state = state.copyWith(
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status: UpdateStatus.error,
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speedBytesPerSec: 0,
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error: '下载失败，请稍后重试',
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);
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} finally {
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if (identical(_cancelToken, cancelToken)) {
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_cancelToken = null;
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}
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}
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}
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double? _sampleSpeed(int received) {
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final now = DateTime.now();
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final lastAt = _lastSpeedSampleAt;
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if (lastAt == null) {
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_lastSpeedSampleAt = now;
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_lastSpeedSampleBytes = received;
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return null;
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}
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final elapsedMs = now.difference(lastAt).inMilliseconds;
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if (elapsedMs < 500) return null;
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final delta = received - _lastSpeedSampleBytes;
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_lastSpeedSampleAt = now;
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_lastSpeedSampleBytes = received;
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return delta > 0 ? delta * 1000.0 / elapsedMs : 0.0;
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}
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void cancel() {
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_cancelToken?.cancel('cancelled by user');
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_cancelToken = null;
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final info = state.info;
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state = state.copyWith(
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status: info == null ? UpdateStatus.idle : UpdateStatus.available,
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received: 0,
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total: info?.selectedAsset?.size ?? 0,
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speedBytesPerSec: 0,
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clearError: true,
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);
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}
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Future<void> install() async {
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final path = state.installerPath;
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if (path == null || path.isEmpty) return;
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try {
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await _service.launchInstaller(path);
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} catch (e, stack) {
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AppLogger.error(_tag, 'launch installer failed', e, stack);
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state = state.copyWith(status: UpdateStatus.error, error: '安装程序启动失败');
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}
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}
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}
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