connect method

Future<bool> connect(Printer device)

Connect to a printer device

Implementation

Future<bool> connect(Printer device) async {
  if (device.connectionType == ConnectionType.USB) {
    if (Platform.isWindows) {
      // Windows USB connection - device is already available, no connection needed
      return true;
    } else {
      return FlutterThermalPrinterPlatform.instance.connect(device);
    }
  } else if (device.connectionType == ConnectionType.BLE) {
    try {
      if (device.address == null) {
        log('Device address is null');
        return false;
      }
      final isConnected =
          (await UniversalBle.getConnectionState(device.address!) ==
              BleConnectionState.connected);
      if (isConnected) {
        log('Device ${device.name} is already connected');
        return true;
      }

      log('Connecting to BLE device ${device.name} at ${device.address}');

      // Connect using universal_ble for all platforms including Windows
      await device.connect();

      // Wait a moment to establish connection
      await Future.delayed(const Duration(seconds: 10));
      return (await UniversalBle.getConnectionState(device.address!) ==
          BleConnectionState.connected);
    } catch (e) {
      log('Failed to connect to BLE device: $e');
      return false;
    }
  }
  return false;
}