Update: 2026-05-15 04:35:25

2026-05-15 04:35:25 +03:00
parent 1ca7e01ce0
commit 2f1ecca593
14 changed files with 858 additions and 10 deletions
--- a/musadaq-app/lib/core/services/thermal_printer_service.dart
+++ b/musadaq-app/lib/core/services/thermal_printer_service.dart
@@ -0,0 +1,109 @@
+import 'package:esc_pos_printer/esc_pos_printer.dart';
+import 'package:esc_pos_utils/esc_pos_utils.dart';
+import '../utils/logger.dart';
+
+class ThermalPrinterService {
+  /// Prints an invoice to a WiFi thermal printer
+  Future<bool> printInvoice({
+    required String ip,
+    required Map<String, dynamic> invoice,
+    int port = 9100,
+    PaperSize paperSize = PaperSize.mm80,
+  }) async {
+    try {
+      final profile = await CapabilityProfile.load();
+      final printer = NetworkPrinter(paperSize, profile);
+
+      final PosPrintResult res = await printer.connect(ip, port: port);
+
+      if (res != PosPrintResult.success) {
+        AppLogger.error('Could not connect to printer at $ip:$port');
+        return false;
+      }
+
+      AppLogger.print('Connected to printer, generating ticket...');
+
+      // Generate Ticket
+      _buildInvoiceTicket(printer, invoice);
+
+      printer.feed(2);
+      printer.cut();
+      printer.disconnect();
+      
+      return true;
+    } catch (e) {
+      AppLogger.error('Thermal printing failed', e);
+      return false;
+    }
+  }
+
+  void _buildInvoiceTicket(NetworkPrinter printer, Map<String, dynamic> invoice) {
+    // Header
+    printer.text(
+      'M U S A D A Q',
+      styles: const PosStyles(
+        align: PosAlign.center,
+        height: PosTextSize.size2,
+        width: PosTextSize.size2,
+        bold: true,
+      ),
+    );
+    printer.text(
+      'نظام الفوترة الإلكترونية',
+      styles: const PosStyles(align: PosAlign.center),
+    );
+    printer.hr();
+
+    // Invoice Info
+    printer.text('رقم الفاتورة: ${invoice['invoice_number'] ?? '-'}');
+    printer.text('التاريخ: ${invoice['invoice_date'] ?? '-'}');
+    printer.text('المورد: ${invoice['supplier_name'] ?? '-'}');
+    if (invoice['supplier_tin'] != null) {
+      printer.text('الرقم الضريبي: ${invoice['supplier_tin']}');
+    }
+    printer.hr();
+
+    // Table Header
+    printer.row([
+      PosColumn(text: 'البند', width: 6),
+      PosColumn(text: 'الكمية', width: 2, styles: const PosStyles(align: PosAlign.center)),
+      PosColumn(text: 'الإجمالي', width: 4, styles: const PosStyles(align: PosAlign.right)),
+    ]);
+    printer.hr();
+
+    // Items
+    final items = invoice['items'] as List? ?? [];
+    for (var item in items) {
+      printer.row([
+        PosColumn(text: item['description'] ?? '-', width: 6),
+        PosColumn(text: item['quantity']?.toString() ?? '1', width: 2, styles: const PosStyles(align: PosAlign.center)),
+        PosColumn(text: item['line_total']?.toString() ?? '0', width: 4, styles: const PosStyles(align: PosAlign.right)),
+      ]);
+    }
+    printer.hr();
+
+    // Totals
+    printer.row([
+      PosColumn(text: 'المجموع الجزئي:', width: 8),
+      PosColumn(text: '${invoice['subtotal'] ?? 0}', width: 4, styles: const PosStyles(align: PosAlign.right)),
+    ]);
+    printer.row([
+      PosColumn(text: 'الضريبة:', width: 8),
+      PosColumn(text: '${invoice['tax_amount'] ?? 0}', width: 4, styles: const PosStyles(align: PosAlign.right)),
+    ]);
+    printer.row([
+      PosColumn(text: 'الإجمالي الكلي:', width: 8, styles: const PosStyles(bold: true)),
+      PosColumn(text: '${invoice['grand_total'] ?? 0} JOD', width: 4, styles: const PosStyles(align: PosAlign.right, bold: true)),
+    ]);
+
+    printer.hr();
+    printer.text(
+      'شكراً لاستخدامكم مُصادَق',
+      styles: const PosStyles(align: PosAlign.center, italic: true),
+    );
+    printer.text(
+      'www.musadaq.com',
+      styles: const PosStyles(align: PosAlign.center),
+    );
+  }
+}