import 'package:flutter/material.dart';

import '../link/boundary.dart';
import '../theme/palette.dart';

/// Power off or reboot the Orin: one confirmation that is also the choice. Sent once,
/// never resent (contracts BOUNDARY.md: the ack cache does not survive the restart).
Future<void> orinPowerOptions(BuildContext context, Boundary b) async {
  final host = b.hello?['host'] ?? 'the Orin';
  final verb = await showDialog<String>(
    context: context,
    builder: (context) => AlertDialog(
      title: Text('Power options: $host'),
      content: const Text(
        'Either way, recording stops and the session is closed cleanly.\n\n'
        'Power off: the Orin stays off until its power button is pressed.\n'
        'Reboot: it is back in about a minute; this screen reconnects by itself.',
      ),
      actions: [
        TextButton(
          onPressed: () => Navigator.of(context).pop(),
          child: const Text('Cancel'),
        ),
        OutlinedButton.icon(
          onPressed: () => Navigator.of(context).pop('reboot'),
          icon: const Icon(Icons.restart_alt),
          label: const Text('Reboot'),
        ),
        FilledButton.icon(
          style: FilledButton.styleFrom(
            backgroundColor: AppTheme.of(context).alarm,
            foregroundColor: AppTheme.of(context)
                .onFill(AppTheme.of(context).alarm),
          ),
          onPressed: () => Navigator.of(context).pop('poweroff'),
          icon: const Icon(Icons.power_settings_new),
          label: const Text('Power off'),
        ),
      ],
    ),
  );
  if (verb == null || !context.mounted) return;
  final messenger = ScaffoldMessenger.of(context);
  final id = b.commandOnce(verb, {
    'confirm': verb,
    'boot_id': b.hello?['boot_id'],
  });
  if (id == null) {
    messenger.showSnackBar(
      const SnackBar(content: Text('Not sent: no link to the Orin')),
    );
    return;
  }
  final ack = await b.ackFor(id);
  final what = verb == 'reboot' ? 'rebooting' : 'shutting down';
  messenger.showSnackBar(
    SnackBar(
      content: Text(
        ack == null
            ? 'No reply: the Orin may or may not be $what'
            : ack.ok
            ? 'Orin: ${ack.detail}'
            : 'Refused: ${ack.detail}',
      ),
    ),
  );
}