eksplicit mapping af envs
This commit is contained in:
Henrik Jess Nielsen
268
app/lib/screens/home_screen.dart
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268
app/lib/screens/home_screen.dart
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@@ -0,0 +1,268 @@
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import 'dart:async';
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import 'dart:typed_data';
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import 'package:flutter/material.dart';
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import 'package:flutter_blue_plus/flutter_blue_plus.dart';
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import 'package:flutter_local_notifications/flutter_local_notifications.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:provider/provider.dart';
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import 'package:sighej/screens/profile_screen.dart';
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import 'package:sighej/services/api_service.dart';
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import 'package:sighej/services/session_store.dart';
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// BLE service UUID that identifies SigHej devices.
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const String kSigHejServiceUuid = '1248f5a0-0000-1000-8000-00805f9b34fb';
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// Manufacturer ID used in BLE advertising data (Android).
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const int kManufacturerId = 0x4E58; // "NX"
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final FlutterLocalNotificationsPlugin _notifications =
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FlutterLocalNotificationsPlugin();
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const _androidChannel = AndroidNotificationDetails(
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'sighej_nudge',
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'SigHej Nudges',
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channelDescription: 'Notifies when a nearby person shares your interests',
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importance: Importance.high,
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priority: Priority.high,
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icon: '@mipmap/ic_launcher',
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);
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class HomeScreen extends StatefulWidget {
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const HomeScreen({super.key});
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@override
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State<HomeScreen> createState() => _HomeScreenState();
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}
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class _HomeScreenState extends State<HomeScreen> {
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bool _openToTalk = false;
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String? _lastNudge;
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StreamSubscription? _bleSub;
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// Track tokens we have already matched this session to avoid spam.
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final Set<String> _matchedTokens = {};
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@override
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void initState() {
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super.initState();
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_initNotifications();
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}
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Future<void> _initNotifications() async {
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const android = AndroidInitializationSettings('@mipmap/ic_launcher');
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const ios = DarwinInitializationSettings(
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requestAlertPermission: true,
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requestBadgePermission: true,
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requestSoundPermission: true,
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);
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await _notifications.initialize(
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const InitializationSettings(android: android, iOS: ios),
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);
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}
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@override
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void dispose() {
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_stopScanning();
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super.dispose();
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}
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Future<void> _toggle(SessionStore store) async {
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if (_openToTalk) {
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_stopScanning();
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return;
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}
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final granted = await _requestPermissions();
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if (!granted) return;
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await registerSession(
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store.bleToken,
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store.interests,
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name: store.name,
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tagline: store.tagline,
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);
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await _startAdvertising(store.bleToken);
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FlutterBluePlus.startScan(timeout: const Duration(minutes: 120));
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_bleSub = FlutterBluePlus.onScanResults.listen((results) async {
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for (final r in results) {
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final detected = _parseSigHejToken(r);
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if (detected == null ||
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detected == store.bleToken ||
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_matchedTokens.contains(detected)) {
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continue;
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}
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_matchedTokens.add(detected);
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await _handlePotentialMatch(store.bleToken, detected, store);
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}
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});
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setState(() => _openToTalk = true);
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}
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Future<void> _startAdvertising(String token) async {
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final tokenBytes = Uint8List.fromList(token.codeUnits);
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try {
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await FlutterBluePlus.startAdvertising(
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AdvertiseData(
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serviceUuids: [Guid(kSigHejServiceUuid)],
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manufacturerData: [ManufacturerData(kManufacturerId, tokenBytes)],
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),
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);
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} catch (e) {
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debugPrint('BLE advertise error: $e');
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}
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}
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void _stopScanning() {
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FlutterBluePlus.stopScan();
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FlutterBluePlus.stopAdvertising();
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_bleSub?.cancel();
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_bleSub = null;
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_matchedTokens.clear();
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setState(() {
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_openToTalk = false;
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_lastNudge = null;
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});
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}
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Future<void> _handlePotentialMatch(
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String own, String detected, SessionStore store) async {
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try {
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final result = await reportMatch(own, detected);
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if (result == null || !result.match) return;
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final interests = result.sharedInterests;
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final body = interests.isEmpty
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? '${store.displayName} — nogen i nærheden er åben for en snak!'
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: 'Fælles interesser: ${interests.join(', ')}';
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await _showNudgeNotification('SigHej — sig hej!', body);
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setState(() => _lastNudge = body);
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} catch (e) {
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debugPrint('Match error: $e');
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}
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}
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Future<void> _showNudgeNotification(String title, String body) async {
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const details = NotificationDetails(android: _androidChannel);
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await _notifications.show(
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body.hashCode,
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title,
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body,
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details,
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);
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}
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/// Parses a SigHej BLE token from a scan result.
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/// Android: reads manufacturer data with key [kManufacturerId].
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/// iOS fallback: reads service data for [kSigHejServiceUuid].
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String? _parseSigHejToken(ScanResult result) {
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final ad = result.advertisementData;
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// Filter: only process SigHej advertisers.
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final hasSigHejUuid = ad.serviceUuids
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.map((g) => g.toString().toLowerCase())
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.contains(kSigHejServiceUuid.toLowerCase());
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if (!hasSigHejUuid) return null;
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// Android: manufacturer data.
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final mfr = ad.manufacturerData[kManufacturerId];
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if (mfr != null && mfr.isNotEmpty) {
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try {
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return String.fromCharCodes(mfr);
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} catch (_) {}
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}
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// iOS fallback: service data.
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final svcData = ad.serviceData[Guid(kSigHejServiceUuid)];
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if (svcData != null && svcData.isNotEmpty) {
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try {
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return String.fromCharCodes(svcData);
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} catch (_) {}
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}
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return null;
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}
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Future<bool> _requestPermissions() async {
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final perms = [
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Permission.bluetooth,
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Permission.bluetoothScan,
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Permission.bluetoothAdvertise,
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Permission.bluetoothConnect,
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Permission.location,
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Permission.notification,
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];
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final statuses = await perms.request();
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return statuses.values.every((s) => s.isGranted || s.isLimited);
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}
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@override
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Widget build(BuildContext context) {
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final store = context.watch<SessionStore>();
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return Scaffold(
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appBar: AppBar(
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title: const Text('SigHej'),
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actions: [
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IconButton(
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icon: const Icon(Icons.person_outline),
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onPressed: () => Navigator.of(context).push(
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MaterialPageRoute(builder: (_) => const ProfileScreen()),
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),
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tooltip: 'Rediger profil',
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),
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],
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),
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body: Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(
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_openToTalk ? 'You\'re open to talk' : 'Tap to open up',
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style: Theme.of(context).textTheme.headlineSmall,
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),
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const SizedBox(height: 32),
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GestureDetector(
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onTap: () => _toggle(store),
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child: AnimatedContainer(
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duration: const Duration(milliseconds: 300),
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width: 150,
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height: 150,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: _openToTalk
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? Theme.of(context).colorScheme.primary
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: Theme.of(context).colorScheme.surfaceContainerHighest,
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),
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child: Icon(
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_openToTalk ? Icons.record_voice_over : Icons.mic_off,
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size: 60,
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color: _openToTalk
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? Theme.of(context).colorScheme.onPrimary
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: Theme.of(context).colorScheme.onSurfaceVariant,
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),
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),
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),
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if (_lastNudge != null) ...[
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const SizedBox(height: 40),
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Card(
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margin: const EdgeInsets.symmetric(horizontal: 24),
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child: Padding(
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padding: const EdgeInsets.all(16),
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child: Text(
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_lastNudge!,
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textAlign: TextAlign.center,
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style: Theme.of(context).textTheme.bodyLarge,
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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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}
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}
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