payfrit-app/lib/screens/splash_screen.dart

710 lines
21 KiB
Dart

import "dart:async";
import "dart:math";
import "package:flutter/material.dart";
import "package:provider/provider.dart";
import "package:dchs_flutter_beacon/dchs_flutter_beacon.dart";
import "../app/app_router.dart";
import "../app/app_state.dart";
import "../models/cart.dart";
import "../services/api.dart";
import "../services/auth_storage.dart";
import "../services/beacon_permissions.dart";
class SplashScreen extends StatefulWidget {
const SplashScreen({super.key});
@override
State<SplashScreen> createState() => _SplashScreenState();
}
class _SplashScreenState extends State<SplashScreen> with TickerProviderStateMixin {
// Bouncing logo animation
late AnimationController _bounceController;
double _x = 100;
double _y = 100;
double _dx = 2.5;
double _dy = 2.0;
Color _logoColor = Colors.white;
final Random _random = Random();
// Rotating status text
Timer? _statusTimer;
int _statusIndex = 0;
static const List<String> _statusPhrases = [
"scanning...",
"listening...",
"searching...",
"locating...",
"analyzing...",
"connecting...",
];
// Beacon scanning state
Map<String, int> _uuidToBeaconId = {};
final Map<String, List<int>> _beaconRssiSamples = {};
final Map<String, int> _beaconDetectionCount = {};
bool _scanComplete = false;
BeaconResult? _bestBeacon;
// Existing cart state
ActiveCartInfo? _existingCart;
BeaconBusinessMapping? _beaconMapping;
// Skip scan state
bool _scanSkipped = false;
// Navigation state - true once we start navigating away
bool _navigating = false;
// Minimum display time for splash screen
late DateTime _splashStartTime;
static const List<Color> _colors = [
Colors.white,
Colors.red,
Colors.green,
Colors.blue,
Colors.yellow,
Colors.purple,
Colors.cyan,
Colors.orange,
];
@override
void initState() {
super.initState();
print('[Splash] 🚀 Starting with bouncing logo + beacon scan');
// Record start time for minimum display duration
_splashStartTime = DateTime.now();
// Start bouncing animation
_bounceController = AnimationController(
vsync: this,
duration: const Duration(milliseconds: 16), // ~60fps
)..addListener(_updatePosition)..repeat();
// Start rotating status text (randomized)
_statusTimer = Timer.periodic(const Duration(milliseconds: 1600), (_) {
if (mounted) {
setState(() {
int newIndex;
do {
newIndex = _random.nextInt(_statusPhrases.length);
} while (newIndex == _statusIndex && _statusPhrases.length > 1);
_statusIndex = newIndex;
});
}
});
// Start the initialization flow
_initializeApp();
}
void _updatePosition() {
if (!mounted) return;
final size = MediaQuery.of(context).size;
const logoWidth = 180.0;
const logoHeight = 60.0;
setState(() {
_x += _dx;
_y += _dy;
// Bounce off edges and change color
if (_x <= 0 || _x >= size.width - logoWidth) {
_dx = -_dx;
_changeColor();
}
if (_y <= 0 || _y >= size.height - logoHeight) {
_dy = -_dy;
_changeColor();
}
// Keep in bounds
_x = _x.clamp(0, size.width - logoWidth);
_y = _y.clamp(0, size.height - logoHeight);
});
}
void _changeColor() {
final newColor = _colors[_random.nextInt(_colors.length)];
if (newColor != _logoColor) {
_logoColor = newColor;
}
}
Future<void> _initializeApp() async {
// Check for saved auth credentials
print('[Splash] 🔐 Checking for saved auth credentials...');
final credentials = await AuthStorage.loadAuth();
if (credentials != null && mounted) {
print('[Splash] ✅ Found saved credentials: UserID=${credentials.userId}, token=${credentials.token.substring(0, 8)}...');
Api.setAuthToken(credentials.token);
// Validate token is still valid by calling profile endpoint
print('[Splash] 🔍 Validating token with server...');
final isValid = await _validateToken();
if (isValid && mounted) {
print('[Splash] ✅ Token is valid');
final appState = context.read<AppState>();
appState.setUserId(credentials.userId);
} else {
print('[Splash] ❌ Token is invalid or expired, clearing saved auth');
await AuthStorage.clearAuth();
Api.clearAuthToken();
}
} else {
print('[Splash] ❌ No saved credentials found');
}
// Start beacon scanning in background
await _performBeaconScan();
// No minimum display time - proceed as soon as scan completes
// Navigate based on results
if (!mounted) return;
_navigateToNextScreen();
}
/// Validates the stored token by making a profile API call
Future<bool> _validateToken() async {
try {
final profile = await Api.getProfile();
return profile.userId > 0;
} catch (e) {
print('[Splash] Token validation failed: $e');
return false;
}
}
Future<void> _performBeaconScan() async {
print('[Splash] 📡 Starting beacon scan...');
// Request permissions
final granted = await BeaconPermissions.requestPermissions();
if (!granted) {
print('[Splash] ❌ Permissions denied');
_scanComplete = true;
return;
}
// Check if Bluetooth is ON
print('[Splash] 📶 Checking Bluetooth state...');
final bluetoothOn = await BeaconPermissions.ensureBluetoothEnabled();
if (!bluetoothOn) {
print('[Splash] ❌ Bluetooth is OFF - cannot scan for beacons');
_scanComplete = true;
return;
}
print('[Splash] ✅ Bluetooth is ON');
// Fetch beacon list from server
try {
_uuidToBeaconId = await Api.listAllBeacons();
print('[Splash] Loaded ${_uuidToBeaconId.length} beacons from database');
} catch (e) {
print('[Splash] Error loading beacons: $e');
_scanComplete = true;
return;
}
if (_uuidToBeaconId.isEmpty) {
print('[Splash] No beacons in database');
_scanComplete = true;
return;
}
// Initialize beacon scanning
try {
await flutterBeacon.initializeScanning;
await Future.delayed(const Duration(milliseconds: 500));
// Create regions for all known UUIDs
final regions = _uuidToBeaconId.keys.map((uuid) {
final formattedUUID = '${uuid.substring(0, 8)}-${uuid.substring(8, 12)}-${uuid.substring(12, 16)}-${uuid.substring(16, 20)}-${uuid.substring(20)}';
return Region(identifier: uuid, proximityUUID: formattedUUID);
}).toList();
// Perform scan cycles
for (int scanCycle = 1; scanCycle <= 5; scanCycle++) {
print('[Splash] ----- Scan cycle $scanCycle/5 -----');
StreamSubscription<RangingResult>? subscription;
subscription = flutterBeacon.ranging(regions).listen((result) {
for (var beacon in result.beacons) {
final uuid = beacon.proximityUUID.toUpperCase().replaceAll('-', '');
final rssi = beacon.rssi;
if (_uuidToBeaconId.containsKey(uuid)) {
_beaconRssiSamples.putIfAbsent(uuid, () => []).add(rssi);
_beaconDetectionCount[uuid] = (_beaconDetectionCount[uuid] ?? 0) + 1;
print('[Splash] ✅ Beacon ${_uuidToBeaconId[uuid]}, RSSI=$rssi');
}
}
});
await Future.delayed(const Duration(seconds: 2));
await subscription.cancel();
// Check for early exit after 3 cycles
if (scanCycle >= 3 && _beaconRssiSamples.isNotEmpty && _canExitEarly()) {
print('[Splash] ⚡ Early exit - stable readings');
break;
}
if (scanCycle < 5) {
await Future.delayed(const Duration(milliseconds: 200));
}
}
// Find best beacon
_bestBeacon = _findBestBeacon();
print('[Splash] 🎯 Best beacon: ${_bestBeacon?.beaconId ?? "none"}');
} catch (e) {
print('[Splash] Scan error: $e');
}
_scanComplete = true;
}
bool _canExitEarly() {
if (_beaconRssiSamples.isEmpty) return false;
bool hasEnoughSamples = _beaconRssiSamples.values.any((s) => s.length >= 3);
if (!hasEnoughSamples) return false;
for (final entry in _beaconRssiSamples.entries) {
final samples = entry.value;
if (samples.length < 3) continue;
final avg = samples.reduce((a, b) => a + b) / samples.length;
final variance = samples.map((r) => (r - avg) * (r - avg)).reduce((a, b) => a + b) / samples.length;
if (variance > 50) return false;
}
if (_beaconRssiSamples.length > 1) {
final avgRssis = <String, double>{};
for (final entry in _beaconRssiSamples.entries) {
if (entry.value.isNotEmpty) {
avgRssis[entry.key] = entry.value.reduce((a, b) => a + b) / entry.value.length;
}
}
final sorted = avgRssis.entries.toList()..sort((a, b) => b.value.compareTo(a.value));
if (sorted.length >= 2 && (sorted[0].value - sorted[1].value) < 5) {
return false;
}
}
return true;
}
BeaconResult? _findBestBeacon() {
if (_beaconRssiSamples.isEmpty) return null;
String? bestUuid;
double bestAvgRssi = -999;
for (final entry in _beaconRssiSamples.entries) {
final samples = entry.value;
final detections = _beaconDetectionCount[entry.key] ?? 0;
if (detections < 3) continue;
final avgRssi = samples.reduce((a, b) => a + b) / samples.length;
if (avgRssi > bestAvgRssi && avgRssi >= -85) {
bestAvgRssi = avgRssi;
bestUuid = entry.key;
}
}
if (bestUuid != null) {
return BeaconResult(
uuid: bestUuid,
beaconId: _uuidToBeaconId[bestUuid]!,
avgRssi: bestAvgRssi,
);
}
// Fall back to strongest signal even if doesn't meet threshold
if (_beaconRssiSamples.isNotEmpty) {
for (final entry in _beaconRssiSamples.entries) {
final samples = entry.value;
if (samples.isEmpty) continue;
final avgRssi = samples.reduce((a, b) => a + b) / samples.length;
if (avgRssi > bestAvgRssi) {
bestAvgRssi = avgRssi;
bestUuid = entry.key;
}
}
if (bestUuid != null) {
return BeaconResult(
uuid: bestUuid,
beaconId: _uuidToBeaconId[bestUuid]!,
avgRssi: bestAvgRssi,
);
}
}
return null;
}
Future<void> _navigateToNextScreen() async {
if (!mounted || _navigating) return;
setState(() {
_navigating = true;
});
final appState = context.read<AppState>();
// Get beacon mapping if we found a beacon
if (_bestBeacon != null) {
try {
_beaconMapping = await Api.getBusinessFromBeacon(beaconId: _bestBeacon!.beaconId);
print('[Splash] 📍 Beacon maps to: ${_beaconMapping!.businessName}');
} catch (e) {
print('[Splash] Error mapping beacon to business: $e');
_beaconMapping = null;
}
}
// Check for existing cart if user is logged in
final userId = appState.userId;
if (userId != null && userId > 0) {
try {
_existingCart = await Api.getActiveCart(userId: userId);
if (_existingCart != null && _existingCart!.hasItems) {
print('[Splash] 🛒 Found existing cart: ${_existingCart!.itemCount} items at ${_existingCart!.businessName}');
} else {
_existingCart = null;
}
} catch (e) {
print('[Splash] Error checking for existing cart: $e');
_existingCart = null;
}
}
if (!mounted) return;
// DECISION TREE:
// 1. Beacon found?
// - Yes: Is there an existing cart?
// - Yes: Same restaurant?
// - Yes: Continue order as dine-in, update service point
// - No: Start fresh with beacon's restaurant (dine-in)
// - No: Start fresh with beacon's restaurant (dine-in)
// - No: Is there an existing cart?
// - Yes: Show "Continue or Start Fresh?" popup
// - No: Go to restaurant select
if (_beaconMapping != null) {
// BEACON FOUND
if (_existingCart != null && _existingCart!.businessId == _beaconMapping!.businessId) {
// Same restaurant - continue order, update to dine-in with new service point
print('[Splash] ✅ Continuing existing order at same restaurant (dine-in)');
await _continueExistingOrderWithBeacon();
} else {
// Different restaurant or no cart - start fresh with beacon
print('[Splash] 🆕 Starting fresh dine-in order at ${_beaconMapping!.businessName}');
_startFreshWithBeacon();
}
} else {
// NO BEACON
if (_existingCart != null) {
// Has existing cart - ask user what to do
print('[Splash] ❓ No beacon, but has existing cart - showing choice dialog');
_showContinueOrStartFreshDialog();
} else {
// No cart, no beacon - go to restaurant select
print('[Splash] 📋 No beacon, no cart - going to restaurant select');
Navigator.of(context).pushReplacementNamed(AppRoutes.restaurantSelect);
}
}
}
/// Continue existing order and update to dine-in with beacon's service point
Future<void> _continueExistingOrderWithBeacon() async {
if (!mounted || _existingCart == null || _beaconMapping == null) return;
final appState = context.read<AppState>();
// Update order type to dine-in and set service point
try {
await Api.setOrderType(
orderId: _existingCart!.orderId,
orderTypeId: 1, // dine-in
);
} catch (e) {
print('[Splash] Error updating order type: $e');
}
// Set app state
appState.setBusinessAndServicePoint(
_beaconMapping!.businessId,
_beaconMapping!.servicePointId,
businessName: _beaconMapping!.businessName,
servicePointName: _beaconMapping!.servicePointName,
);
appState.setOrderType(OrderType.dineIn);
appState.setCartOrder(
orderId: _existingCart!.orderId,
orderUuid: _existingCart!.orderUuid,
itemCount: _existingCart!.itemCount,
);
Api.setBusinessId(_beaconMapping!.businessId);
Navigator.of(context).pushReplacementNamed(
AppRoutes.menuBrowse,
arguments: {
'businessId': _beaconMapping!.businessId,
'servicePointId': _beaconMapping!.servicePointId,
},
);
}
/// Start fresh dine-in order with beacon
void _startFreshWithBeacon() {
if (!mounted || _beaconMapping == null) return;
final appState = context.read<AppState>();
// Clear any existing cart reference
appState.clearCart();
appState.setBusinessAndServicePoint(
_beaconMapping!.businessId,
_beaconMapping!.servicePointId,
businessName: _beaconMapping!.businessName,
servicePointName: _beaconMapping!.servicePointName,
);
appState.setOrderType(OrderType.dineIn);
Api.setBusinessId(_beaconMapping!.businessId);
Navigator.of(context).pushReplacementNamed(
AppRoutes.menuBrowse,
arguments: {
'businessId': _beaconMapping!.businessId,
'servicePointId': _beaconMapping!.servicePointId,
},
);
}
/// Show dialog asking user to continue existing order or start fresh
void _showContinueOrStartFreshDialog() {
if (!mounted || _existingCart == null) return;
showDialog(
context: context,
barrierDismissible: false,
builder: (context) => AlertDialog(
title: const Text("Existing Order Found"),
content: Text(
"You have an existing order at ${_existingCart!.businessName} "
"with ${_existingCart!.itemCount} item${_existingCart!.itemCount == 1 ? '' : 's'}.\n\n"
"Would you like to continue with this order or start fresh?",
),
actions: [
TextButton(
onPressed: () {
Navigator.of(context).pop();
_startFresh();
},
child: const Text("Start Fresh"),
),
ElevatedButton(
onPressed: () {
Navigator.of(context).pop();
_continueExistingOrder();
},
child: const Text("Continue Order"),
),
],
),
);
}
/// Continue with existing order (no beacon)
void _continueExistingOrder() {
if (!mounted || _existingCart == null) return;
final appState = context.read<AppState>();
// Only use service point if this is actually a dine-in order
// Otherwise clear it to avoid showing stale table info
final isDineIn = _existingCart!.isDineIn;
appState.setBusinessAndServicePoint(
_existingCart!.businessId,
isDineIn && _existingCart!.servicePointId > 0 ? _existingCart!.servicePointId : 0,
businessName: _existingCart!.businessName,
servicePointName: isDineIn ? _existingCart!.servicePointName : null,
);
// Set order type based on existing cart
if (isDineIn) {
appState.setOrderType(OrderType.dineIn);
} else if (_existingCart!.isTakeaway) {
appState.setOrderType(OrderType.takeaway);
} else if (_existingCart!.isDelivery) {
appState.setOrderType(OrderType.delivery);
} else {
appState.setOrderType(null); // Undecided - will choose at checkout
}
appState.setCartOrder(
orderId: _existingCart!.orderId,
orderUuid: _existingCart!.orderUuid,
itemCount: _existingCart!.itemCount,
);
Api.setBusinessId(_existingCart!.businessId);
Navigator.of(context).pushReplacementNamed(
AppRoutes.menuBrowse,
arguments: {
'businessId': _existingCart!.businessId,
'servicePointId': _existingCart!.servicePointId,
},
);
}
/// Start fresh - abandon existing order and go to restaurant select
Future<void> _startFresh() async {
if (!mounted) return;
final appState = context.read<AppState>();
// Abandon the existing order on the server
if (_existingCart != null) {
print('[Splash] Abandoning order ${_existingCart!.orderId}...');
try {
await Api.abandonOrder(orderId: _existingCart!.orderId);
print('[Splash] Order abandoned successfully');
} catch (e) {
// Ignore errors - just proceed with clearing local state
print('[Splash] Failed to abandon order: $e');
}
} else {
print('[Splash] No existing cart to abandon');
}
appState.clearCart();
if (!mounted) return;
Navigator.of(context).pushReplacementNamed(AppRoutes.restaurantSelect);
}
/// Skip the beacon scan and proceed without dine-in detection
void _skipScan() {
if (_scanSkipped || _navigating) return;
print('[Splash] ⏭️ User skipped beacon scan');
setState(() {
_scanSkipped = true;
_scanComplete = true;
_bestBeacon = null; // No beacon since we skipped
});
// Proceed with navigation (will check for existing cart)
_navigateToNextScreen();
}
@override
void dispose() {
_bounceController.dispose();
_statusTimer?.cancel();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: Stack(
children: [
// Centered static status text
Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
const Text(
"site survey",
style: TextStyle(
color: Colors.white,
fontSize: 18,
fontWeight: FontWeight.w300,
letterSpacing: 1,
),
),
const SizedBox(height: 6),
Text(
_statusPhrases[_statusIndex],
style: const TextStyle(
color: Colors.white,
fontSize: 18,
fontWeight: FontWeight.w300,
letterSpacing: 1,
),
),
],
),
),
// Bouncing logo
Positioned(
left: _x,
top: _y,
child: Text(
"PAYFRIT",
style: TextStyle(
color: _logoColor,
fontSize: 38,
fontWeight: FontWeight.w800,
letterSpacing: 3,
),
),
),
// Skip button at bottom - show until we start navigating away
if (!_navigating)
Positioned(
bottom: 50,
left: 0,
right: 0,
child: Center(
child: TextButton(
onPressed: _skipScan,
style: TextButton.styleFrom(
padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 12),
),
child: const Text(
"Skip Scan",
style: TextStyle(
color: Colors.white70,
fontSize: 16,
fontWeight: FontWeight.w500,
letterSpacing: 0.5,
),
),
),
),
),
],
),
);
}
}
class BeaconResult {
final String uuid;
final int beaconId;
final double avgRssi;
const BeaconResult({
required this.uuid,
required this.beaconId,
required this.avgRssi,
});
}