general_printer_controller.dart

import 'package:esc_pos_utils/esc_pos_utils.dart';
import 'package:get/get.dart';
import 'package:viapp_totem/app/core/printers/elgin_printer_device.dart';
import 'package:viapp_totem/app/core/printers/physical_printer.dart';
import 'package:viapp_totem/app/core/printers/network_printer.dart';
import 'package:viapp_totem/app/core/printers/sunmi_printer.dart';

class GeneralPrinterContorller extends GetxController {
  PhysicalPrinter get physical => PhysicalPrinter.instance;
  NetWorkPrint get network => NetWorkPrint.instance;
  SunmiPrinterDevice get sunmi => SunmiPrinterDevice.instance;
  ElginPrinterDevice get elgin => ElginPrinterDevice.instance;
  var _printerInstance;
  T printerInstance<T>() {
    return _printerInstance as T;
  }

  T? printer<T>(Map<String, dynamic>? printer) {
    if (printer?['impressora'] == null) {
      _printerInstance = null; // null; physical as T;
      return null;
    } else {
      if (printer?['impressora']['fabricante'] == 'M8_M10') {
        _printerInstance = elgin as T;
        return elgin as T;
      }
      if (printer?['impressora']['fabricante'] == 'SUNMI_50' || printer?['impressora']['fabricante'] == 'SUNMI_80') {
        if (printer?['impressora']['fabricante'] == 'SUNMI_50') {
          sunmi.paper = PaperSize.mm58;
        }
        _printerInstance = sunmi as T;
        return sunmi as T;
      }
      if (printer?['impressora']['local_device'] != null && printer?['impressora']['local_device'] != '') {
        physical.devicePort = printer?['impressora']['local_device'];
        _printerInstance = physical as T;
        return physical as T;
      } else {
        if (printer?['impressora']['impressora_rede'] != null && printer?['impressora']['impressora_rede'] != '') {
          if (printer?['impressora']['porta_rede'] == "" || printer?['impressora']['porta_rede'] == null) {
            network.port = 9100;
          } else {
            try {
              network.port = int.parse(printer?['impressora']['porta_rede']);
            } catch (_) {
              network.port = 9100;
            }
          }
          network.ip = printer?['impressora']['impressora_rede'];
          _printerInstance = network as T;
          return network as T;
        } else {
          _printerInstance = physical as T;
          return physical as T;
        }
      }
    }
  }
}