import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_contacts/contact.dart';
import 'package:qr_flutter/qr_flutter.dart';

class QRCodeButton extends StatelessWidget {
  final List<Contact> contacts;
  final Contact? selfContact;

  const QRCodeButton({super.key, required this.contacts, this.selfContact});

  Contact? getSelfContact() {
    if (kDebugMode) {
      debugPrint("Checking for self contact");
    }
    for (var contact in contacts) {
      if (contact.groups.any((group) => group.name.toLowerCase() == "user")) {
        return contact;
      }
    }
    return null;
  }

  @override
  Widget build(BuildContext context) {

    return IconButton(
      icon: Icon(Icons.qr_code, color: selfContact != null ? Colors.blue : Colors.grey),
      onPressed: selfContact != null
          ? () {
        showDialog(
          barrierColor: Colors.white24,
          context: context,
          barrierDismissible: true,
          builder: (BuildContext context) {
            return AlertDialog(
              backgroundColor: Colors.black,
              content: SizedBox(
                width: 200,
                height: 220,
                child: QrImageView(
                  data: selfContact!.toVCard(),
                  version: QrVersions.auto,
                  backgroundColor: Colors.white, // Ensure QR code is visible on black background
                  size: 200.0,
                ),
              ),
            );
          },
        );
      }
          : null,
    );
  }
}