export function launchNativeNfc (success, failure) {
  function hexToBytes (hex) {
    let bytes = []
    for (let c = 0; c < hex.length; c += 2) {
      bytes.push(parseInt(hex.substr(c, 2), 16))
    }
    return bytes
  }

  function formatRecord (record) {
    const formatted = ndef.record(record.tnf,
        hexToBytes(record.type),
        hexToBytes(record.id),
        hexToBytes(record.payload)
    )
    return formatted
  }

  exec(
      (ndefMessage) => {
        success(ndefMessage.map(formatRecord))
      },
      failure,
      'FlomioPlugin', 'launchNativeNfc', [])
}

LocationManager.prototype._registerDelegateCallbackId = function () {
	this.appendToDeviceLog('registerDelegateCallbackId()');
	var d = Q.defer();

	exec(_.bind(this._onDelegateCallback, this, d), _.bind(this._onDelegateCallback, this, d), "LocationManager",
		"registerDelegateCallbackId", []);

	return d.promise;
};

export function sendApdu (deviceId: string, apdu: string | Buffer, success, failure) {
  if (deviceId == null) {
    throw new ReferenceError('`deviceId` parameter is `null`')
  }
  if (apdu == null) {
    throw new ReferenceError('`apdu` parameter is `null`')
  }
  let apduString: string
  if (Buffer.isBuffer(apdu)) {
    apduString = apdu.toString('hex')
  }
  if (typeof apdu === 'string') {
    apduString = apdu
  } else {
    throw new ReferenceError('`apdu` parameter needs to be a `Buffer` or a `string`')
  }
  exec(success, failure, 'FlomioPlugin', 'sendApdu', [deviceId, apduString])
}

export function setConfiguration (configuration, success, failure) {
  exec(success, failure, 'FlomioPlugin', 'setConfiguration', [configuration])
}

export function getCommunicationStatus (success, failure) {
  exec(success, failure, 'FlomioPlugin', 'getCommunicationStatus', [])
}

export function getBatteryLevel (success, failure) {
  exec(success, failure, 'FlomioPlugin', 'getBatteryLevel', [])
}

export function selectSpecificDeviceId (specificDeviceId: string, success, failure) {
  exec(success, failure, 'FlomioPlugin', 'selectSpecificDeviceId', [specificDeviceId])
}

export function init (success, failure) {
  exec(success, failure, 'FlomioPlugin', 'init', [])
}

export function startReaders (success, failure) {
  exec(success, failure, 'FlomioPlugin', 'startReaders', [])
}