import 'dart:typed_data';

import 'package:flutter_image_compress/flutter_image_compress.dart';

/// Compresses a JPEG image to reduce upload size.
///
/// Target: ≤ 200 KB for verification selfies. Falls back to the original
/// bytes if compression fails so the upload is never blocked.
class ImageCompressService {
  ImageCompressService._();

  /// Compress [bytes] (JPEG/PNG) down to [quality] (1–100).
  /// Resizes the longest side to at most [maxDimension] pixels.
  static Future<Uint8List> compress(
    Uint8List bytes, {
    int quality = 70,
    int maxDimension = 800,
  }) async {
    try {
      final result = await FlutterImageCompress.compressWithList(
        bytes,
        minHeight: maxDimension,
        minWidth: maxDimension,
        quality: quality,
        format: CompressFormat.jpeg,
      );
      return result;
    } catch (_) {
      // If compression fails on any platform, return original bytes.
      return bytes;
    }
  }
}