398 lines
16 KiB
Dart
398 lines
16 KiB
Dart
import 'dart:math';
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import 'package:flutter/material.dart';
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import 'package:geolocator/geolocator.dart';
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import 'package:url_launcher/url_launcher.dart';
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import '../services/odoo_service.dart';
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import '../utils/safe_cast.dart';
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class BranchesScreen extends StatefulWidget {
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const BranchesScreen({super.key});
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@override
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State<BranchesScreen> createState() => _BranchesScreenState();
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}
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class _BranchesScreenState extends State<BranchesScreen> {
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List<dynamic> _branches = [];
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bool _isLoading = true;
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Position? _userPosition;
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bool _locationDenied = false;
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@override
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void initState() {
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super.initState();
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_fetchBranchesWithLocation();
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}
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Future<void> _fetchBranchesWithLocation() async {
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setState(() => _isLoading = true);
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// Try to get user location
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Position? pos;
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try {
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bool serviceEnabled = await Geolocator.isLocationServiceEnabled();
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if (serviceEnabled) {
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LocationPermission permission = await Geolocator.checkPermission();
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if (permission == LocationPermission.denied) {
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permission = await Geolocator.requestPermission();
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}
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if (permission == LocationPermission.whileInUse ||
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permission == LocationPermission.always) {
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pos = await Geolocator.getCurrentPosition(
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locationSettings: const LocationSettings(
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accuracy: LocationAccuracy.medium,
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timeLimit: Duration(seconds: 8),
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),
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);
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}
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}
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} catch (_) {
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// Location not available — proceed without it
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}
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// Fetch branches from Odoo
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try {
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final branches = await OdooService.getPublicBranches();
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if (mounted) {
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setState(() {
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_userPosition = pos;
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_locationDenied = pos == null;
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if (pos != null) {
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// Sort branches by distance from user
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_branches = List<dynamic>.from(branches)
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..sort((a, b) {
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final p = pos!;
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final da = _distanceTo(p, a);
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final db = _distanceTo(p, b);
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return da.compareTo(db);
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});
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} else {
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// Fallback: alphabetical sort
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_branches = List<dynamic>.from(branches)
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..sort(
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(a, b) => (safeString(a['name']) ?? '').compareTo(
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safeString(b['name']) ?? '',
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),
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);
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}
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_isLoading = false;
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});
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}
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} catch (e) {
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if (mounted) {
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setState(() => _isLoading = false);
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('Error loading branches. Check connection.'),
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),
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);
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}
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}
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}
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/// Haversine formula — returns distance in kilometres.
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double _distanceTo(Position pos, dynamic branch) {
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final lat = _toDouble(branch['partner_latitude']);
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final lng = _toDouble(branch['partner_longitude']);
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if (lat == 0.0 && lng == 0.0) return double.maxFinite;
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const R = 6371.0;
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final dLat = _degToRad(lat - pos.latitude);
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final dLng = _degToRad(lng - pos.longitude);
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final a =
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sin(dLat / 2) * sin(dLat / 2) +
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cos(_degToRad(pos.latitude)) *
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cos(_degToRad(lat)) *
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sin(dLng / 2) *
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sin(dLng / 2);
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final c = 2 * atan2(sqrt(a), sqrt(1 - a));
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return R * c;
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}
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double _degToRad(double deg) => deg * (pi / 180);
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double _toDouble(dynamic val) {
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if (val == null || val == false) return 0.0;
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if (val is num) return val.toDouble();
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return double.tryParse(val.toString()) ?? 0.0;
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}
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String _formatDistance(double km) {
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if (km == double.maxFinite) return '';
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if (km < 1) return '${(km * 1000).toStringAsFixed(0)} m';
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return '${km.toStringAsFixed(1)} km';
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}
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Future<void> _launchMaps(String queryTerm) async {
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final query = Uri.encodeComponent(queryTerm);
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final url = Uri.parse(
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'https://www.google.com/maps/search/?api=1&query=$query',
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);
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if (await canLaunchUrl(url)) {
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await launchUrl(url, mode: LaunchMode.externalApplication);
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} else {
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if (mounted) {
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ScaffoldMessenger.of(
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context,
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).showSnackBar(const SnackBar(content: Text('Could not open map.')));
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}
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}
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}
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Future<void> _launchWhatsApp(String phone) async {
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final cleanPhone = phone.replaceAll(RegExp(r'\D'), '');
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String waPhone = cleanPhone;
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if (waPhone.startsWith('0')) {
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waPhone = '62${waPhone.substring(1)}';
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}
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final url = Uri.parse('https://wa.me/$waPhone');
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if (await canLaunchUrl(url)) {
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await launchUrl(url, mode: LaunchMode.externalApplication);
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} else {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Could not open WhatsApp.')),
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);
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}
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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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final theme = Theme.of(context);
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final colorScheme = theme.colorScheme;
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return _isLoading
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? const Center(child: CircularProgressIndicator())
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: RefreshIndicator(
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onRefresh: _fetchBranchesWithLocation,
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child: Column(
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children: [
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// Location status banner
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if (_locationDenied)
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Container(
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width: double.infinity,
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color: colorScheme.surfaceContainerLow,
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 10,
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),
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child: Row(
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children: [
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Icon(
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Icons.location_off,
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size: 16,
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color: colorScheme.onSurfaceVariant,
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),
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const SizedBox(width: 8),
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Expanded(
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child: Text(
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'Location not available. Showing branches alphabetically.',
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style: theme.textTheme.bodySmall?.copyWith(
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color: colorScheme.onSurfaceVariant,
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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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else if (_userPosition != null)
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Container(
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width: double.infinity,
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color: colorScheme.surfaceContainerLow,
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 10,
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),
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child: Row(
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children: [
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Icon(
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Icons.my_location,
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size: 16,
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color: colorScheme.secondary,
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),
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const SizedBox(width: 8),
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Text(
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'Sorted by distance from your location',
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style: theme.textTheme.bodySmall?.copyWith(
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color: colorScheme.onSurfaceVariant,
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),
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),
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],
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),
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),
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// Branch list
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Expanded(
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child: _branches.isEmpty
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? ListView(
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physics: const AlwaysScrollableScrollPhysics(),
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children: [
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SizedBox(
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height: MediaQuery.of(context).size.height * 0.5,
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child: const Center(
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child: Text(
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'No branches available.',
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style: TextStyle(fontSize: 16),
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),
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),
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),
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],
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)
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: ListView.builder(
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 12,
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),
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itemCount: _branches.length,
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itemBuilder: (context, index) {
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final branch = _branches[index];
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final street =
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branch['street'] != null &&
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branch['street'] != false
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? branch['street']
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: '';
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final city =
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branch['city'] != null &&
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branch['city'] != false
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? branch['city']
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: '';
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final phone =
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branch['phone'] != null &&
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branch['phone'] != false
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? branch['phone']
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: '';
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final addressParts = [
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street,
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city,
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].where((e) => e.toString().isNotEmpty).join(', ');
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final distance = _userPosition != null
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? _distanceTo(_userPosition!, branch)
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: null;
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final distanceLabel = distance != null
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? _formatDistance(distance)
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: '';
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return Container(
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margin: const EdgeInsets.only(bottom: 12),
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decoration: BoxDecoration(
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color: colorScheme.surfaceContainerLow,
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borderRadius: BorderRadius.circular(16),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withValues(alpha: 0.03),
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blurRadius: 8,
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offset: const Offset(0, 3),
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),
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],
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),
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child: ListTile(
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contentPadding: const EdgeInsets.all(16),
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onTap: () => _launchMaps(
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'${branch['name']} $addressParts',
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),
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leading: Container(
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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color: colorScheme.secondaryContainer,
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borderRadius: BorderRadius.circular(12),
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),
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child: Icon(
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Icons.storefront,
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color: colorScheme.secondary,
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),
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),
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title: Text(
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branch['name'] ?? 'Mapan Branch',
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style: theme.textTheme.titleMedium?.copyWith(
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fontFamily: 'serif',
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fontWeight: FontWeight.bold,
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),
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),
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subtitle: Padding(
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padding: const EdgeInsets.only(top: 6.0),
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child: Column(
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crossAxisAlignment:
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CrossAxisAlignment.start,
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children: [
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if (distanceLabel.isNotEmpty) ...[
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Row(
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children: [
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Icon(
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Icons.near_me_rounded,
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size: 14,
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color: colorScheme.primary,
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),
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const SizedBox(width: 4),
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Text(
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'$distanceLabel away',
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style: theme.textTheme.bodyMedium
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?.copyWith(
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color: colorScheme.primary,
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fontWeight: FontWeight.bold,
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),
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),
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],
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),
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const SizedBox(height: 6),
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],
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Text(
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addressParts.isEmpty
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? 'No address specified'
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: addressParts,
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style: theme.textTheme.bodyMedium,
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),
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if (phone.isNotEmpty) ...[
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const SizedBox(height: 4),
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Row(
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children: [
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Icon(
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Icons.phone,
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size: 14,
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color:
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colorScheme.onSurfaceVariant,
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),
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const SizedBox(width: 4),
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Text(
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phone,
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style: theme.textTheme.bodySmall
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?.copyWith(
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color: colorScheme
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.onSurfaceVariant,
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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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trailing: phone.isNotEmpty
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? IconButton(
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icon: Icon(
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Icons.chat_bubble,
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color: colorScheme.onSurface,
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),
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onPressed: () => _launchWhatsApp(phone),
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tooltip: 'Chat on WhatsApp',
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)
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: Icon(
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Icons.chevron_right,
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color: colorScheme.onSurfaceVariant,
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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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}
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