import 'package:flutter/material.dart';

/// Small shared widgets/helpers used across the admin screens.

void toast(BuildContext context, String message) {
  ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(message)));
}

class ErrorText extends StatelessWidget {
  const ErrorText(this.message, {super.key, this.onRetry});
  final String message;
  final VoidCallback? onRetry;

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Padding(
        padding: const EdgeInsets.all(24),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Text(message, textAlign: TextAlign.center),
            if (onRetry != null) ...[
              const SizedBox(height: 12),
              OutlinedButton(onPressed: onRetry, child: const Text('Erneut versuchen')),
            ],
          ],
        ),
      ),
    );
  }
}

class SectionHeader extends StatelessWidget {
  const SectionHeader(this.title, {super.key, this.action});
  final String title;
  final Widget? action;

  @override
  Widget build(BuildContext context) {
    return Row(
      children: [
        Expanded(
          child: Text(title, style: Theme.of(context).textTheme.titleMedium),
        ),
        ?action,
      ],
    );
  }
}

/// Single-line text prompt dialog. Returns the trimmed value or null.
Future<String?> promptText(BuildContext context, String title, String label) {
  final controller = TextEditingController();
  return showDialog<String>(
    context: context,
    builder: (context) => AlertDialog(
      title: Text(title),
      content: TextField(
        controller: controller,
        autofocus: true,
        decoration: InputDecoration(labelText: label),
        onSubmitted: (v) => Navigator.of(context).pop(v.trim()),
      ),
      actions: [
        TextButton(
          onPressed: () => Navigator.of(context).pop(),
          child: const Text('Abbrechen'),
        ),
        FilledButton(
          onPressed: () => Navigator.of(context).pop(controller.text.trim()),
          child: const Text('OK'),
        ),
      ],
    ),
  );
}