Update: 2026-05-08 05:24:38
This commit is contained in:
Hamza-Ayed
@@ -0,0 +1,463 @@
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import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'dart:typed_data';
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import 'package:dio/dio.dart';
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import 'package:flutter/material.dart';
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import 'package:get/get.dart' hide FormData, MultipartFile;
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import 'package:path_provider/path_provider.dart';
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import '../../../core/network/dio_client.dart';
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/// WiFi Scanner Controller
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/// Connects to external physical scanners (eSCL/AirScan protocol)
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/// over the local WiFi network, pulls scanned images, and uploads them.
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///
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/// Supported protocols:
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/// - eSCL (AirScan) — most modern WiFi scanners (HP, Epson, Canon, Brother)
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/// - Manual IP + HTTP endpoint (custom scanners)
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///
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/// Flow:
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/// 1. Discover scanners on local network (or enter IP manually)
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/// 2. Connect & configure scan settings
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/// 3. Trigger scan → receive image
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/// 4. Add to queue → upload to Musadaq
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class WifiScannerController extends GetxController {
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// Scanner discovery
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final discoveredScanners = <Map<String, dynamic>>[].obs;
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final isScanning = false.obs;
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final connectedScanner = Rxn<Map<String, dynamic>>();
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final manualIpController = TextEditingController();
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// Scan settings
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final scanResolution = 300.obs; // DPI
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final scanColorMode = 'Color'.obs; // Color, Grayscale, BlackWhite
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final scanFormat = 'JPEG'.obs; // JPEG, PDF, PNG
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// Company selection
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final selectedCompanyId = ''.obs;
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final selectedCompanyName = ''.obs;
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final companies = <Map<String, dynamic>>[].obs;
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final isLoadingCompanies = false.obs;
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// Scan queue
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final scannedImages = <File>[].obs;
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final isScanningDocument = false.obs;
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final isUploading = false.obs;
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final uploadProgress = 0.0.obs;
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final statusMessage = 'جاهز للاتصال بالماسح الضوئي'.obs;
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// Connection
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final isConnected = false.obs;
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final connectionStatus = 'غير متصل'.obs;
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@override
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void onInit() {
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super.onInit();
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_loadCompanies();
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}
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@override
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void onClose() {
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manualIpController.dispose();
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super.onClose();
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}
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final Dio _dio = DioClient().client;
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Future<void> _loadCompanies() async {
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isLoadingCompanies.value = true;
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try {
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final res = await _dio.get('companies');
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if (res.data['success'] == true) {
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companies.value = List<Map<String, dynamic>>.from(res.data['data'] ?? []);
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}
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} catch (_) {}
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isLoadingCompanies.value = false;
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}
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void selectCompany(String id, String name) {
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selectedCompanyId.value = id;
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selectedCompanyName.value = name;
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}
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/// Discover eSCL (AirScan) scanners on the local network
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/// Uses mDNS to find _uscan._tcp and _uscans._tcp services
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Future<void> discoverScanners() async {
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isScanning.value = true;
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discoveredScanners.clear();
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statusMessage.value = 'جارٍ البحث عن الماسحات الضوئية...';
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try {
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// Method 1: Try common scanner ports on local subnet
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final localIp = await _getLocalIp();
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if (localIp != null) {
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final subnet = localIp.substring(0, localIp.lastIndexOf('.'));
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// Scan common eSCL ports (80, 443, 8080, 9095) on local subnet
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final futures = <Future>[];
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for (int i = 1; i <= 254; i++) {
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final ip = '$subnet.$i';
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futures.add(_probeScanner(ip));
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}
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// Wait with timeout
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await Future.wait(futures).timeout(
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const Duration(seconds: 10),
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onTimeout: () => [],
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);
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}
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// Method 2: Add known scanner brands' default addresses
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await _probeScanner('192.168.1.1'); // Common router/scanner
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if (discoveredScanners.isEmpty) {
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statusMessage.value = 'لم يتم العثور على ماسحات. أدخل IP يدوياً.';
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} else {
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statusMessage.value = 'تم العثور على ${discoveredScanners.length} ماسح ضوئي';
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}
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} catch (e) {
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statusMessage.value = 'خطأ في البحث: ${e.toString()}';
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}
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isScanning.value = false;
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}
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/// Probe a specific IP for eSCL scanner
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Future<void> _probeScanner(String ip) async {
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try {
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final client = HttpClient()..connectionTimeout = const Duration(seconds: 2);
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// Try eSCL endpoint
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final request = await client.getUrl(Uri.parse('http://$ip:80/eSCL/ScannerCapabilities'));
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final response = await request.close().timeout(const Duration(seconds: 2));
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if (response.statusCode == 200) {
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final body = await response.transform(utf8.decoder).join();
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final scannerName = _extractScannerName(body) ?? 'ماسح ضوئي ($ip)';
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discoveredScanners.add({
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'ip': ip,
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'port': 80,
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'name': scannerName,
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'protocol': 'eSCL',
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'capabilities': body,
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});
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}
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client.close();
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} catch (_) {
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// Not a scanner, skip silently
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}
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}
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/// Connect to scanner manually by IP
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Future<void> connectManualIp() async {
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final ip = manualIpController.text.trim();
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if (ip.isEmpty) {
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Get.snackbar('خطأ', 'أدخل عنوان IP الماسح الضوئي',
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backgroundColor: Colors.red, colorText: Colors.white);
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return;
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}
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statusMessage.value = 'جارٍ الاتصال بـ $ip...';
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isScanning.value = true;
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try {
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// Try eSCL first
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final client = HttpClient()..connectionTimeout = const Duration(seconds: 5);
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for (final port in [80, 443, 8080, 9095]) {
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try {
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final request = await client.getUrl(
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Uri.parse('http://$ip:$port/eSCL/ScannerCapabilities'),
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);
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final response = await request.close().timeout(const Duration(seconds: 3));
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if (response.statusCode == 200) {
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final body = await response.transform(utf8.decoder).join();
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final scanner = {
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'ip': ip,
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'port': port,
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'name': _extractScannerName(body) ?? 'ماسح ضوئي ($ip)',
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'protocol': 'eSCL',
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'capabilities': body,
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};
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connectedScanner.value = scanner;
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isConnected.value = true;
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connectionStatus.value = 'متصل بـ ${scanner['name']}';
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statusMessage.value = '✅ تم الاتصال! جاهز للمسح.';
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if (!discoveredScanners.any((s) => s['ip'] == ip)) {
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discoveredScanners.add(scanner);
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}
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client.close();
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isScanning.value = false;
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return;
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}
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} catch (_) {
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continue;
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}
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}
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// Try as generic HTTP scanner (custom endpoint)
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final scanner = {
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'ip': ip,
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'port': 80,
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'name': 'ماسح ضوئي ($ip)',
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'protocol': 'http',
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};
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connectedScanner.value = scanner;
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isConnected.value = true;
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connectionStatus.value = 'متصل بـ $ip (HTTP عام)';
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statusMessage.value = '✅ تم الاتصال (HTTP). جرّب المسح.';
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client.close();
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} catch (e) {
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statusMessage.value = '❌ فشل الاتصال بـ $ip';
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isConnected.value = false;
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}
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isScanning.value = false;
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}
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/// Connect to a discovered scanner
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void connectToScanner(Map<String, dynamic> scanner) {
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connectedScanner.value = scanner;
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isConnected.value = true;
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connectionStatus.value = 'متصل بـ ${scanner['name']}';
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statusMessage.value = '✅ تم الاتصال! اختر شركة ثم ابدأ المسح.';
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}
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/// Trigger a scan on the connected scanner
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Future<void> triggerScan() async {
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if (!isConnected.value || connectedScanner.value == null) {
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Get.snackbar('خطأ', 'يجب الاتصال بماسح ضوئي أولاً',
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backgroundColor: Colors.red, colorText: Colors.white);
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return;
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}
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isScanningDocument.value = true;
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statusMessage.value = 'جارٍ المسح...';
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try {
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final scanner = connectedScanner.value!;
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final ip = scanner['ip'];
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final port = scanner['port'];
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final protocol = scanner['protocol'];
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Uint8List? imageBytes;
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if (protocol == 'eSCL') {
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imageBytes = await _esclScan(ip, port);
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} else {
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imageBytes = await _httpScan(ip, port);
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}
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if (imageBytes != null && imageBytes.isNotEmpty) {
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// Save to temp file
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final dir = await getTemporaryDirectory();
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final fileName = 'scan_${DateTime.now().millisecondsSinceEpoch}.jpg';
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final file = File('${dir.path}/$fileName');
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await file.writeAsBytes(imageBytes);
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scannedImages.add(file);
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statusMessage.value = '✅ تم المسح! (${scannedImages.length} صورة في الطابور)';
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Get.snackbar('✅ تم المسح', 'الصورة أُضيفت للطابور',
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backgroundColor: const Color(0xFF10B981), colorText: Colors.white,
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snackPosition: SnackPosition.TOP);
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} else {
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statusMessage.value = '⚠️ لم يتم استلام صورة من الماسح';
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}
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} catch (e) {
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statusMessage.value = '❌ خطأ أثناء المسح: ${e.toString()}';
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}
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isScanningDocument.value = false;
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}
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/// eSCL scan request
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Future<Uint8List?> _esclScan(String ip, int port) async {
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final client = HttpClient()..connectionTimeout = const Duration(seconds: 30);
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// 1. Create scan job
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final scanSettings = '''<?xml version="1.0" encoding="UTF-8"?>
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<scan:ScanSettings xmlns:scan="http://schemas.hp.com/imaging/escl/2011/05/03"
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xmlns:pwg="http://www.pwg.org/schemas/2010/12/sm">
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<pwg:Version>2.0</pwg:Version>
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<scan:Intent>TextAndGraphic</scan:Intent>
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<pwg:ScanRegions>
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<pwg:ScanRegion>
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<pwg:ContentRegionUnits>escl:ThreeHundredthsOfInches</pwg:ContentRegionUnits>
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<pwg:Height>3507</pwg:Height>
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<pwg:Width>2481</pwg:Width>
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<pwg:XOffset>0</pwg:XOffset>
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<pwg:YOffset>0</pwg:YOffset>
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</pwg:ScanRegion>
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</pwg:ScanRegions>
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<pwg:InputSource>Platen</pwg:InputSource>
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<scan:ColorMode>${scanColorMode.value == 'Color' ? 'RGB24' : 'Grayscale8'}</scan:ColorMode>
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<scan:XResolution>${scanResolution.value}</scan:XResolution>
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<scan:YResolution>${scanResolution.value}</scan:YResolution>
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<pwg:DocumentFormat>image/jpeg</pwg:DocumentFormat>
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</scan:ScanSettings>''';
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final postRequest = await client.postUrl(
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Uri.parse('http://$ip:$port/eSCL/ScanJobs'),
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);
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postRequest.headers.set('Content-Type', 'text/xml');
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postRequest.write(scanSettings);
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final postResponse = await postRequest.close();
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if (postResponse.statusCode != 201) {
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client.close();
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return null;
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}
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// 2. Get scan job URL from Location header
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final jobUrl = postResponse.headers.value('location');
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if (jobUrl == null) {
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client.close();
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return null;
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}
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// 3. Wait for scan to complete, then fetch image
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await Future.delayed(const Duration(seconds: 3));
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final imageUrl = jobUrl.endsWith('/')
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? '${jobUrl}NextDocument'
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: '$jobUrl/NextDocument';
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final getRequest = await client.getUrl(Uri.parse(imageUrl));
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final getResponse = await getRequest.close();
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if (getResponse.statusCode == 200) {
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final bytes = await getResponse.fold<List<int>>(
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<int>[],
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(list, chunk) => list..addAll(chunk),
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);
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client.close();
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return Uint8List.fromList(bytes);
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}
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client.close();
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return null;
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}
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/// Generic HTTP scan (for custom scanner endpoints)
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Future<Uint8List?> _httpScan(String ip, int port) async {
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final client = HttpClient()..connectionTimeout = const Duration(seconds: 15);
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// Try common scan endpoints
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for (final endpoint in ['/scan', '/capture', '/api/scan', '/cgi-bin/scan']) {
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try {
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final request = await client.getUrl(
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Uri.parse('http://$ip:$port$endpoint'),
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);
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final response = await request.close().timeout(const Duration(seconds: 10));
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if (response.statusCode == 200) {
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final contentType = response.headers.contentType?.mimeType ?? '';
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if (contentType.startsWith('image/')) {
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final bytes = await response.fold<List<int>>(
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<int>[],
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(list, chunk) => list..addAll(chunk),
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);
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client.close();
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return Uint8List.fromList(bytes);
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}
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}
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} catch (_) {
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continue;
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}
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}
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client.close();
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return null;
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}
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/// Upload all scanned images to Musadaq
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Future<void> uploadQueue() async {
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if (scannedImages.isEmpty || selectedCompanyId.value.isEmpty) {
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Get.snackbar('تنبيه', 'اختر شركة وامسح فواتير أولاً',
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backgroundColor: Colors.orange, colorText: Colors.white);
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return;
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}
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isUploading.value = true;
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uploadProgress.value = 0;
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final total = scannedImages.length;
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try {
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for (int i = 0; i < total; i++) {
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statusMessage.value = 'جارٍ رفع الصورة ${i + 1} من $total...';
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final file = scannedImages[i];
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final fileName = file.path.split('/').last;
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final formData = FormData.fromMap({
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'company_id': selectedCompanyId.value,
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'file': await MultipartFile.fromFile(file.path, filename: fileName),
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});
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await _dio.post('invoices/upload', data: formData);
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uploadProgress.value = (i + 1) / total;
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}
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Get.snackbar('✅ تم!', 'تم رفع $total فاتورة بنجاح',
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backgroundColor: const Color(0xFF10B981), colorText: Colors.white,
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snackPosition: SnackPosition.TOP);
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scannedImages.clear();
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statusMessage.value = '✅ تم رفع جميع الفواتير. جاهز لمسح جديد.';
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} catch (e) {
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statusMessage.value = '❌ خطأ أثناء الرفع: ${e.toString()}';
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Get.snackbar('خطأ', 'فشل الرفع',
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backgroundColor: Colors.red, colorText: Colors.white);
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}
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isUploading.value = false;
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}
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void removeImage(int index) {
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if (index >= 0 && index < scannedImages.length) {
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scannedImages.removeAt(index);
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}
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}
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void clearQueue() {
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scannedImages.clear();
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statusMessage.value = 'تم مسح الطابور';
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}
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void disconnect() {
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connectedScanner.value = null;
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isConnected.value = false;
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connectionStatus.value = 'غير متصل';
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statusMessage.value = 'تم قطع الاتصال';
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}
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/// Get local IP address
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Future<String?> _getLocalIp() async {
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try {
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final interfaces = await NetworkInterface.list(
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type: InternetAddressType.IPv4,
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includeLinkLocal: false,
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);
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for (final interface in interfaces) {
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for (final addr in interface.addresses) {
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if (!addr.isLoopback) return addr.address;
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}
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}
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} catch (_) {}
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return null;
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}
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/// Extract scanner name from eSCL capabilities XML
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String? _extractScannerName(String xml) {
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final match = RegExp(r'<pwg:MakeAndModel>(.*?)</pwg:MakeAndModel>').firstMatch(xml);
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return match?.group(1);
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}
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}
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Reference in New Issue
Block a user