import { Platform } from 'react-native';
import ReactNativeBiometrics, {
  type BiometryType,
  BiometryTypes,
} from 'react-native-biometrics';

const rnBiometrics = new ReactNativeBiometrics();
interface IsSensorAvailableResult {
  available: boolean;
  biometryType?: BiometryType;
  error?: string;
}
enum BiometricErrorAndroid {
  NO_HARDWARE = 'BIOMETRIC_ERROR_NO_HARDWARE',
  HW_UNAVAILBLE = 'BIOMETRIC_ERROR_HW_UNAVAILABLE',
  NONE_ENROLLED = 'BIOMETRIC_ERROR_NONE_ENROLLED',
}

/* checking if biometric sensors are enabled on device */
export default class BioMetricManager {
  static checkSensorAvailable() {
    return new Promise((resolve, reject) => {
      try {
        rnBiometrics
          .isSensorAvailable()
          .then((resultObject: IsSensorAvailableResult) => {
            const { available, biometryType, error } = resultObject;
            if (available && biometryType === BiometryTypes.TouchID) {
              resolve('TouchID');
            } else if (available && biometryType === BiometryTypes.FaceID) {
              resolve('FaceID');
            } else if (available && biometryType === BiometryTypes.Biometrics) {
              resolve('Biometrics');
            } else {
              if (Platform.OS === 'android') {
                if (error === BiometricErrorAndroid.NO_HARDWARE) {
                  reject(error);
                } else if (error === BiometricErrorAndroid.NONE_ENROLLED) {
                  reject(error);
                } else if (error === BiometricErrorAndroid.HW_UNAVAILBLE) {
                  reject(error);
                }
              } else {
                reject('Not Available');
              }
            }
          });
      } catch (err) {
        reject('Not Available');
      }
    });
  }

  /* Propmpts dialogue to user for using fingerprint or faceid */
  static displayPrompt(msg: string) {
    return new Promise((resolve, reject) => {
      try {
        rnBiometrics
          .simplePrompt({ promptMessage: msg })
          .then((res: any) => {
            const { success } = res;
            if (success) {
              resolve(true);
            } else {
              reject(false);
            }
          })
          .catch(() => {
            reject(false);
          });
      } catch (error) {
        reject(false);
      }
    });
  }
}