import 'dart:typed_data';

import 'package:flutter/widgets.dart';

/// Result from a face liveness check.
class FaceLivenessResult {
  final Uint8List imageBytes;
  final String? imagePath;
  FaceLivenessResult({required this.imageBytes, this.imagePath});
}

/// Run face liveness detection. Returns captured photo or null if cancelled.
/// Stub implementation for unsupported platforms.
Future<FaceLivenessResult?> runFaceLiveness(
  BuildContext context, {
  int requiredBlinks = 3,
}) async {
  return null;
}

/// Compare a captured face photo with enrolled face photo bytes.
/// Returns similarity score 0.0 (no match) to 1.0 (perfect match).
/// Stub returns 0.0.
Future<double> compareFaces(
  Uint8List capturedBytes,
  Uint8List enrolledBytes,
) async {
  return 0.0;
}