sgcart/app/services/biometricService.ts

import ReactNativeBiometrics, {
  BiometryTypes,
} from 'react-native-biometrics';
import {
  AuthenticationResult,
  BiometricAvailability,
  BiometricType,
} from '../types/biometric.types';
import { BIOMETRIC } from '../utils/constants';

const rnBiometrics = new ReactNativeBiometrics();

class BiometricService {
  async isAvailable(): Promise<BiometricAvailability> {
    try {
      const { available, biometryType } =
        await rnBiometrics.isSensorAvailable();

      if (!available) {
        return {
          available: false,
          biometryType: BiometricType.NONE,
        };
      }

      switch (biometryType) {
        case BiometryTypes.TouchID:
          return {
            available: true,
            biometryType: BiometricType.TOUCH_ID,
          };

        case BiometryTypes.FaceID:
          return {
            available: true,
            biometryType: BiometricType.FACE_ID,
          };

        case BiometryTypes.Biometrics:
          return {
            available: true,
            biometryType: BiometricType.BIOMETRICS,
          };

        default:
          return {
            available: false,
            biometryType: BiometricType.NONE,
          };
      }
    } catch {
      return {
        available: false,
        biometryType: BiometricType.NONE,
      };
    }
  }

  async authenticate(): Promise<AuthenticationResult> {
    try {
      const { success } = await rnBiometrics.simplePrompt({
        promptMessage: BIOMETRIC.PROMPT_TITLE,
        cancelButtonText: BIOMETRIC.CANCEL_TEXT,
      });

      return {
        success,
      };
    } catch (error: any) {
      console.log('Biometric Error:', error);
      return {
        success: false,
        error: error?.message ?? 'Authentication failed',
      };
    }
  }
}

export default new BiometricService();