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219
lib/presentation/screens/qr_scan_screen.dart
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219
lib/presentation/screens/qr_scan_screen.dart
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import 'dart:ui' as ui;
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import 'package:be_happy/core/result.dart';
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import 'package:be_happy/domain/entities/scooter.dart';
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import 'package:flutter/material.dart';
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import 'package:mobile_scanner/mobile_scanner.dart';
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import 'package:go_router/go_router.dart';
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import 'package:be_happy/di/service_locator.dart';
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import 'package:be_happy/domain/usecase/get_scooter_by_title_usecase.dart';
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import '../components/gradient_button.dart';
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class QrScanScreen extends StatefulWidget {
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const QrScanScreen({super.key});
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@override
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State<QrScanScreen> createState() => _QrScanScreenState();
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}
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class _QrScanScreenState extends State<QrScanScreen> {
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final MobileScannerController _controller = MobileScannerController();
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String? _scannedData;
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String? _scooterTitle;
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bool _torchOn = false;
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bool _isLoading = false;
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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bool _isProcessing = false;
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void _handleScannedData(String rawValue) async {
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if (_isProcessing || _isLoading) return;
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final uri = Uri.tryParse(rawValue);
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if (uri == null || uri.host != 'behappybel.by') return;
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final title = uri.pathSegments.last;
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print("TITLE IS: $title");
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if (title.isEmpty) return;
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setState(() {
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_isProcessing = true;
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_isLoading = true;
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});
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await _controller.stop();
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try {
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final getScooterByTitleUsecase = getIt<GetScooterByTitleUsecase>();
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print("UseCase успешно получен из DI");
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final result = await getScooterByTitleUsecase(title);
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print("UseCase успешно выполнен");
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if (mounted) {
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setState(() => _isLoading = false);
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switch (result) {
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case Success<Scooter?>():
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final scooter = result.data;
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if (scooter != null) {
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context.pop();
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context.push('/home/scooter/${scooter.id}');
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} else {
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_showErrorAndRestart('Самокат не найден');
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}
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case Failure<Scooter?>():
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_showErrorAndRestart('Ошибка при поиске самоката');
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}
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}
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} catch (e) {
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print("Ошибка DI: $e");
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}
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}
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void _showErrorAndRestart(String message) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text(message)),
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);
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Future.delayed(const Duration(seconds: 2), () {
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if (mounted) {
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setState(() {
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_isProcessing = false;
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_scannedData = null;
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});
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_controller.start();
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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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return Scaffold(
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backgroundColor: Colors.black,
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body: Stack(
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children: [
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MobileScanner(
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controller: _controller,
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onDetect: (capture) {
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if (_isProcessing) return;
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for (final barcode in capture.barcodes) {
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final String? rawValue = barcode.rawValue;
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if (rawValue != null) {
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_handleScannedData(rawValue);
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break;
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}
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}
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},
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),
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ColorFiltered(
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colorFilter: ColorFilter.mode(
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Colors.black.withOpacity(0.7),
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BlendMode.srcOut,
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),
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child: Stack(
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children: [
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Container(
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decoration: const BoxDecoration(
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color: Colors.black,
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backgroundBlendMode: BlendMode.dstOut,
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),
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),
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Center(
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child: Container(
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width: 280,
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height: 280,
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(0),
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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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Center(
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child: Container(
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width: 280,
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height: 280,
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decoration: BoxDecoration(
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border: Border.all(color: const Color(0xFF6EE7B7), width: 3),
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),
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),
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),
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SafeArea(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 40),
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child: Column(
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children: [
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const SizedBox(height: 60),
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const Text(
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'Наведите рамку на QR-код — номер будет распознан автоматически',
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textAlign: TextAlign.center,
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style: TextStyle(
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color: Colors.white,
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fontSize: 16,
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fontWeight: FontWeight.w500,
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shadows: [
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Shadow(blurRadius: 4, color: Colors.black),
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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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SafeArea(
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child: Align(
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alignment: Alignment.bottomCenter,
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child: Padding(
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padding: const EdgeInsets.all(20),
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child: Row(
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children: [
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Expanded(
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child: GradientButton(
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text: 'Ввести номер вручную',
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onTap: () {
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context.push('/home/qr-info/qr-input');
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},
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width: double.infinity,
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height: 56,
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fontSize: 16,
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showArrows: true,
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),
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),
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const SizedBox(width: 12),
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CircleAvatar(
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backgroundColor: Colors.black.withOpacity(0.5),
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child: IconButton(
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onPressed: () async {
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final newState = !_torchOn;
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await _controller.toggleTorch();
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setState(() => _torchOn = newState);
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},
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icon: Icon(
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_torchOn ? Icons.flashlight_on : Icons.flashlight_off,
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color: Colors.white,
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size: 24,
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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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}
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}
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