authorised PIN & fingerprint

src/screen/FaceAuth.tsx

@@ -1,76 +1,17 @@
-import React from 'react';
-import { View, Text, TouchableOpacity, Alert, StyleSheet } from 'react-native';
-import ReactNativeBiometrics, { BiometryTypes } from 'react-native-biometrics';
+import ReactNativeBiometrics from 'react-native-biometrics';
 
-const FaceAuth = () => {
+const rnBiometrics = new ReactNativeBiometrics();
 
-    const authenticate = async () => {
-        try {
-            const rnBiometrics = new ReactNativeBiometrics({
-                allowDeviceCredentials: true, // Android PIN fallback
-            });
+export const authenticateUser = async () => {
+    const { available, biometryType } = await rnBiometrics.isSensorAvailable();
 
-            const result = await rnBiometrics.isSensorAvailable();
-            console.log('Biometric result:', result);
+    if (!available) {
+        return false;
+    }
 
-            const { available, biometryType } = result;
+    const result = await rnBiometrics.simplePrompt({
+        promptMessage: 'Unlock using Face ID',
+    });
 
-            if (!available) {
-                Alert.alert('Error', 'Biometric authentication not available');
-                return;
-            }
-
-            if (
-                biometryType === BiometryTypes.FaceID ||
-                biometryType === BiometryTypes.Biometrics ||
-                biometryType === BiometryTypes.TouchID
-            ) {
-                const authResult = await rnBiometrics.simplePrompt({
-                    promptMessage: 'Authenticate to continue',
-                });
-
-                if (authResult.success) {
-                    Alert.alert('Success', 'Authentication successful');
-                } else {
-                    Alert.alert('Cancelled', 'Authentication cancelled');
-                }
-            }
-        } catch (error) {
-            console.log('Biometric error:', error);
-            Alert.alert('Error', 'Authentication failed');
-        }
-    };
-
-    return (
-        <View style={styles.container}>
-            <Text style={styles.title}>Face Authentication</Text>
-
-            <TouchableOpacity style={styles.button} onPress={authenticate}>
-                <Text style={styles.buttonText}>Authenticate</Text>
-            </TouchableOpacity>
-        </View>
-    );
+    return result.success;
 };
-
-export default FaceAuth;
-
-const styles = StyleSheet.create({
-    container: {
-        flex: 1,
-        justifyContent: 'center',
-        alignItems: 'center',
-    },
-    title: {
-        fontSize: 20,
-        marginBottom: 20,
-    },
-    button: {
-        backgroundColor: '#4CAF50',
-        padding: 15,
-        borderRadius: 8,
-    },
-    buttonText: {
-        color: '#fff',
-        fontWeight: 'bold',
-    },
-});