import 'package:flutter/material.dart'; import 'package:sunmi_printer_plus/sunmi_printer_plus.dart'; import 'package:cloud_firestore/cloud_firestore.dart'; import 'package:intl/intl.dart'; class SunmiReceiptPrinter { static Future printReceipt({ required String currency, required String salesId, required DocumentReference receiptRef, required List salesCartDocs, }) async { try { // Initialize printer await SunmiPrinter.init(); // Check printer status bool isReady = await SunmiPrinter.isPrinterReady(); if (!isReady) { return 'Printer is not ready. Please check connection and paper.'; } // Fetch receipt data final receiptData = await receiptRef.get(); if (!receiptData.exists) { return 'Receipt document not found'; } final receiptMap = receiptData.data() as Map; final storeName = receiptMap['store_name'] ?? 'Unknown Store'; final storeAddress = receiptMap['store_address'] ?? ''; final storeContact = receiptMap['store_contact'] ?? ''; final employeeName = receiptMap['employee_name'] ?? 'Unknown'; final paymentMethod = receiptMap['payment_method'] ?? 'Cash'; final customerChange = receiptMap['change'] ?? 0.0; final totalAmount = receiptMap['total_amount'] ?? 0.0; final receiptUrl = receiptMap['receipt_url']; final transactionDate = receiptMap['created_at']?.toDate() ?? DateTime.now(); // Fetch cart items final List> items = []; for (final docRef in salesCartDocs) { final doc = await docRef.get(); if (doc.exists) { items.add(doc.data() as Map); } } // Start printing await SunmiPrinter.startTransactionPrint(true); // Print store info (centered) await SunmiPrinter.setAlignment(SunmiAlign.CENTER); await SunmiPrinter.printText( storeName, style: SunmiStyle(bold: true, fontSize: SunmiFontSize.LARGE), ); await SunmiPrinter.printText(storeAddress); await SunmiPrinter.printText(storeContact); await SunmiPrinter.lineWrap(1); // Print transaction details (left-aligned) await SunmiPrinter.setAlignment(SunmiAlign.LEFT); await SunmiPrinter.printText( 'Receipt #: $salesId', style: SunmiStyle(bold: true), ); await SunmiPrinter.printText( 'Date: ${DateFormat('yyyy-MM-dd HH:mm').format(transactionDate)}', ); await SunmiPrinter.printText('Employee: $employeeName'); await SunmiPrinter.lineWrap(1); // Print divider line await SunmiPrinter.printText('--------------------------------'); await SunmiPrinter.lineWrap(1); // Print items header await SunmiPrinter.printText( 'ITEM', style: SunmiStyle(bold: true), ); await SunmiPrinter.printText( 'QTY PRICE TOTAL', style: SunmiStyle(bold: true), ); await SunmiPrinter.lineWrap(1); // Print items for (final item in items) { final name = item['name'] ?? 'Unknown'; final quantity = item['quantity'] ?? 0; final price = item['price'] ?? 0.0; final total = quantity * price; await SunmiPrinter.printText(name); await SunmiPrinter.printText( '$quantity x ${currency}${price.toStringAsFixed(2)} = ${currency}${total.toStringAsFixed(2)}', ); await SunmiPrinter.lineWrap(1); } // Print divider line await SunmiPrinter.printText('--------------------------------'); await SunmiPrinter.lineWrap(1); // Print totals (right-aligned) await SunmiPrinter.setAlignment(SunmiAlign.RIGHT); await SunmiPrinter.printText( 'Total Items: ${items.length}', ); await SunmiPrinter.printText( 'Total: ${currency}${totalAmount.toStringAsFixed(2)}', style: SunmiStyle(bold: true), ); await SunmiPrinter.printText( 'Payment: $paymentMethod', ); if (customerChange > 0) { await SunmiPrinter.printText( 'Change: ${currency}${customerChange.toStringAsFixed(2)}', ); } await SunmiPrinter.lineWrap(2); // Print footer (centered) await SunmiPrinter.setAlignment(SunmiAlign.CENTER); await SunmiPrinter.printText('Thank you for your purchase!'); await SunmiPrinter.lineWrap(1); // Print QR code if URL exists if (receiptUrl != null && receiptUrl.isNotEmpty) { await SunmiPrinter.printQRCode( receiptUrl, size: 8, alignment: SunmiAlign.CENTER, ); await SunmiPrinter.lineWrap(1); } // Cut paper await SunmiPrinter.cut(); // Commit print job await SunmiPrinter.commitTransactionPrint(); return 'Receipt printed successfully'; } catch (e) { return 'Error printing receipt: ${e.toString()}'; } } } name: sunmi_printer_action description: A custom action for FlutterFlow to print receipts using Sunmi Printer Plus. publish_to: 'none' version: 1.0.0+1 environment: sdk: '>=3.0.0 <4.0.0' dependencies: flutter: sdk: flutter sunmi_printer_plus: ^2.1.01 cloud_firestore: ^4.8.2 intl: ^0.18.1 dev_dependencies: flutter_test: sdk: flutter flutter_lints: ^2.0.0 flutter: uses-material-design: true