import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../providers/public_keys_provider.dart';

class MissingKeysBanner extends StatelessWidget {
  const MissingKeysBanner({super.key});

  @override
  Widget build(BuildContext context) {
    return Consumer<PublicKeysProvider>(
      builder: (context, keys, _) {
        final missing = keys.missingPublicKeys;
        final isTest  = keys.isTestEnvironment;

        if (missing.isEmpty && !isTest) return const SizedBox.shrink();

        return Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            if (isTest)
              Container(
                width: double.infinity,
                color: Colors.orange,
                padding: const EdgeInsets.symmetric(
                    vertical: 4, horizontal: 12),
                child: const Text(
                  '⚠️  TEST ENVIRONMENT',
                  textAlign: TextAlign.center,
                  style: TextStyle(
                    color: Colors.white,
                    fontWeight: FontWeight.bold,
                    fontSize: 12,
                  ),
                ),
              ),
            if (missing.isNotEmpty)
              Container(
                width: double.infinity,
                color: Colors.red.shade700,
                padding: const EdgeInsets.symmetric(
                    vertical: 6, horizontal: 12),
                child: Text(
                  '🔑 Keys not configured: ${missing.join(', ')}. Contact admin.',
                  textAlign: TextAlign.center,
                  style: const TextStyle(
                      color: Colors.white, fontSize: 11),
                ),
              ),
          ],
        );
      },
    );
  }
}