import 'package:flutter/material.dart';

import 'package:sxchnge_kyc/sxchnge_kyc.dart';

import '../generated/i18n/app_localizations.dart';

/// Evict this sensitive preview's decoded cache entry on replacement or exit.
class PhotoPreview extends StatefulWidget {
  const PhotoPreview({super.key, required this.photo, required this.label});
  final Photo photo;
  final String label;
  @override
  State<PhotoPreview> createState() => _PhotoPreviewState();
}

class _PhotoPreviewState extends State<PhotoPreview> {
  late ImageProvider _image = _provider();
  ImageProvider _provider() =>
      ResizeImage.resizeIfNeeded(1000, null, MemoryImage(widget.photo.bytes));
  @override
  void didUpdateWidget(covariant PhotoPreview oldWidget) {
    super.didUpdateWidget(oldWidget);
    if (!identical(oldWidget.photo, widget.photo)) {
      _image.evict();
      _image = _provider();
    }
  }

  @override
  void dispose() {
    _image.evict();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) => Image(
    image: _image,
    height: 220,
    fit: BoxFit.contain,
    semanticLabel: widget.label,
    errorBuilder: (_, _, _) =>
        Text(AppLocalizations.of(context)!.kycErrorUnreadable),
  );
}