import '../../about/external/data/Health.dart';
import '../../about/internal/application/ServerProfile.dart';
import '../parent/ParentViewModel.dart';
import 'ConnectHealth.dart';

class ViewHealth extends ParentViewModel {
  ConnectHealth connection;

  ViewHealth(super.context, this.connection);

  bool _running = false;

  bool get isRunning => _running;

  /// Checks every service on every server, reporting each result as it lands.
  /// A server that can't be reached marks its own services unhealthy and the
  /// sweep moves on, so one dead box doesn't stall the whole dashboard.
  void runSweep(List<ServerProfile> servers) async {
    if (_running) return;
    _running = true;
    notifyListeners();
    connection.onSweepStarted();

    for (final server in servers) {
      for (final service in server.services) {
        try {
          final result = await getDataManager().checkHealth(server, service);
          connection.onServiceChecked(service.id, result);
        } catch (error) {
          connection.onServiceChecked(
            service.id,
            HealthResult(HealthStatus.unhealthy, _describe(error)),
          );
        }
      }
    }

    getDataManager().disconnect();
    _running = false;
    notifyListeners();
    connection.onSweepFinished();
  }

  String _describe(Object error) {
    final text = error.toString();
    return text.length > 80 ? '${text.substring(0, 77)}…' : text;
  }
}