OTA Update attempt
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import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:file_picker/file_picker.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:supabase_flutter/supabase_flutter.dart';
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/// A simple admin-only web page allowing the upload of a new APK and the
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/// associated metadata. After the APK is uploaded to the "apk_updates"
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/// bucket the `app_versions` table is updated and any older rows are removed
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/// so that only the current entry remains.
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class AppUpdateScreen extends ConsumerStatefulWidget {
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const AppUpdateScreen({super.key});
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@override
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ConsumerState<AppUpdateScreen> createState() => _AppUpdateScreenState();
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}
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class _AppUpdateScreenState extends ConsumerState<AppUpdateScreen> {
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final _formKey = GlobalKey<FormState>();
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final _versionController = TextEditingController();
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final _minController = TextEditingController();
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final _notesController = TextEditingController();
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Uint8List? _apkBytes;
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String? _apkName;
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bool _isUploading = false;
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double _progress = 0.0; // 0..1
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String? _eta;
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final List<String> _logs = [];
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Timer? _progressTimer;
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String? _error;
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@override
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void initState() {
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super.initState();
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_loadCurrent();
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}
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Future<void> _loadCurrent() async {
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try {
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final client = Supabase.instance.client;
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final data = await client
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.from('app_versions')
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.select()
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.order('version_code', ascending: false)
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.limit(1)
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.maybeSingle();
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if (data is Map<String, dynamic>) {
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_versionController.text = data['version_code']?.toString() ?? '';
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_minController.text = data['min_version_required']?.toString() ?? '';
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_notesController.text = data['release_notes'] ?? '';
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}
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} catch (_) {}
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}
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@override
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void dispose() {
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_versionController.dispose();
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_minController.dispose();
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_notesController.dispose();
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super.dispose();
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}
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Future<void> _pickApk() async {
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final result = await FilePicker.platform.pickFiles(
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type: FileType.custom,
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allowedExtensions: ['apk'],
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);
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if (result != null && result.files.single.bytes != null) {
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setState(() {
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_apkBytes = result.files.single.bytes;
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_apkName = result.files.single.name;
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});
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}
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}
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Future<void> _submit() async {
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if (!_formKey.currentState!.validate()) return;
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if (_apkBytes == null || _apkName == null) {
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setState(() => _error = 'Please select an APK file.');
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return;
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}
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final vcode = _versionController.text.trim();
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final minReq = _minController.text.trim();
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final notes = _notesController.text;
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setState(() {
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_isUploading = true;
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_progress = 0.0;
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_eta = null;
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_logs.clear();
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_error = null;
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});
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try {
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final client = Supabase.instance.client;
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// ensure the user is authenticated (browser uploads require correct auth/CORS)
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final user = client.auth.currentUser;
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_logs.add('Current user: ${user?.id ?? 'anonymous'}');
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if (user == null) {
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throw Exception('Not signed in. Please sign in to perform uploads.');
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}
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// Use a deterministic object name to avoid accidental nesting
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final filename = '${DateTime.now().millisecondsSinceEpoch}_$_apkName';
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final path = filename;
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_logs.add('Starting upload to bucket apk_updates, path: $path');
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final stopwatch = Stopwatch()..start();
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// we cannot track real progress from the SDK, so fake a linear update
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final estimatedSeconds = (_apkBytes!.length / 250000).clamp(1, 30);
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_progressTimer = Timer.periodic(const Duration(milliseconds: 200), (t) {
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final elapsed = stopwatch.elapsed.inMilliseconds / 1000.0;
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setState(() {
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_progress = (elapsed / estimatedSeconds).clamp(0.0, 0.9);
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final remaining = (estimatedSeconds - elapsed).clamp(
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0.0,
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double.infinity,
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);
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_eta = '${remaining.toStringAsFixed(1)}s';
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});
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});
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final uploadRes = await client.storage
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.from('apk_updates')
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.uploadBinary(
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path,
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_apkBytes!,
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fileOptions: const FileOptions(
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upsert: true,
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contentType: 'application/vnd.android.package-archive',
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),
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);
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stopwatch.stop();
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_logs.add('Upload finished (took ${stopwatch.elapsed.inSeconds}s)');
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_logs.add('Raw upload response: ${uploadRes.runtimeType} - $uploadRes');
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if (uploadRes is Map) {
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final Map m = uploadRes as Map;
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if (m.containsKey('error') && m['error'] != null) {
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throw Exception('upload failed: ${m['error']}');
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}
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}
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setState(() {
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_progress = 0.95;
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});
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// retrieve public URL; various SDK versions return different structures
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dynamic urlRes = client.storage.from('apk_updates').getPublicUrl(path);
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_logs.add('Raw getPublicUrl response: ${urlRes.runtimeType} - $urlRes');
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String url;
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if (urlRes is String) {
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url = urlRes;
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} else if (urlRes is Map) {
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// supabase responses vary by SDK version
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if (urlRes['publicUrl'] is String) {
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url = urlRes['publicUrl'] as String;
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} else if (urlRes['data'] is String) {
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url = urlRes['data'] as String;
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} else if (urlRes['data'] is Map) {
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final d = urlRes['data'] as Map;
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url =
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(d['publicUrl'] ?? d['public_url'] ?? d['url'] ?? d['publicURL'])
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as String? ??
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'';
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} else {
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url = '';
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}
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} else {
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url = '';
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}
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if (url.isEmpty)
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throw Exception(
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'could not obtain public url, check bucket CORS and policies',
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);
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_logs.add('Public URL: $url');
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// upsert new version in a single statement
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await client.from('app_versions').upsert({
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'version_code': vcode,
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'min_version_required': minReq,
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'download_url': url,
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'release_notes': notes,
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}, onConflict: 'version_code');
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await client.from('app_versions').delete().neq('version_code', vcode);
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setState(() {
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_progress = 1.0;
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});
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Version saved successfully')),
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);
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}
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} catch (e) {
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_logs.add('Error during upload: $e');
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setState(() => _error = e.toString());
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} finally {
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_progressTimer?.cancel();
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_progressTimer = null;
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setState(() => _isUploading = false);
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}
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}
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@override
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Widget build(BuildContext context) {
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if (!kIsWeb) {
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return const Center(
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child: Text('This page is only available on the web.'),
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);
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}
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return Scaffold(
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appBar: AppBar(title: const Text('APK Update Uploader')),
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body: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Form(
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key: _formKey,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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TextFormField(
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controller: _versionController,
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decoration: const InputDecoration(
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labelText: 'Version (e.g. 1.2.3)',
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),
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keyboardType: TextInputType.text,
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validator: (v) => (v == null || v.isEmpty) ? 'Required' : null,
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),
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TextFormField(
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controller: _minController,
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decoration: const InputDecoration(
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labelText: 'Min Version (e.g. 0.1.1)',
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),
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keyboardType: TextInputType.text,
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validator: (v) => (v == null || v.isEmpty) ? 'Required' : null,
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),
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TextFormField(
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controller: _notesController,
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decoration: const InputDecoration(labelText: 'Release Notes'),
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maxLines: 3,
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),
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const SizedBox(height: 12),
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Row(
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children: [
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ElevatedButton(
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onPressed: _isUploading ? null : _pickApk,
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child: const Text('Select APK'),
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),
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const SizedBox(width: 8),
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Expanded(child: Text(_apkName ?? 'no file chosen')),
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],
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),
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const SizedBox(height: 20),
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if (_isUploading) ...[
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LinearProgressIndicator(value: _progress),
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if (_eta != null)
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Padding(
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padding: const EdgeInsets.only(top: 4.0),
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child: Text('ETA: $_eta'),
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),
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const SizedBox(height: 12),
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ConstrainedBox(
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constraints: const BoxConstraints(maxHeight: 150),
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child: ListView(
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shrinkWrap: true,
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children: _logs.map((l) => Text(l)).toList(),
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),
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),
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const SizedBox(height: 12),
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],
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if (_error != null)
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Text(_error!, style: const TextStyle(color: Colors.red)),
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ElevatedButton(
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onPressed: _isUploading ? null : _submit,
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child: _isUploading
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? const CircularProgressIndicator()
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: const Text('Save'),
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),
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],
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),
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),
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),
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);
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}
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}
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