41 lines
1.5 KiB
Dart
41 lines
1.5 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:flutter/material.dart';
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import '../../utils/downloads/download_job.dart';
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import '../../utils/downloads/download_manager.dart';
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import '../confirm_dialog.dart';
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import '../info_dialog.dart';
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/// Verifies a finished download's cache file is still on disk before opening.
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///
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/// Downloads live in the app's temp dir, which Android may clear at any time
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/// (storage pressure, "Cache leeren") — while completion notifications and
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/// tray entries stay tappable indefinitely. Returns true when the file exists;
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/// otherwise drops the stale job (incl. its notification) and offers a
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/// re-download when the remote path is known (it isn't for notification taps
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/// whose task metadata got lost).
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bool ensureDownloadStillExists(BuildContext context, DownloadJob job) {
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final path = job.localPath;
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if (path == null || File(path).existsSync()) return true;
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DownloadManager.instance.markOpened(job);
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if (job.remotePath.isNotEmpty) {
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ConfirmDialog(
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title: 'Datei nicht mehr verfügbar',
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content:
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'Die heruntergeladene Datei wurde vom System aus dem Zwischenspeicher entfernt.\nErneut herunterladen?',
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confirmButton: 'Herunterladen',
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onConfirm: () => unawaited(DownloadManager.instance.retry(job)),
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).asDialog(context);
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} else {
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InfoDialog.show(
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context,
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'Die heruntergeladene Datei wurde vom System aus dem Zwischenspeicher entfernt. Bitte lade sie erneut herunter.',
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title: 'Datei nicht mehr verfügbar',
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);
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}
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return false;
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}
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