/// Aggregate summary of the current system state displayed on the dashboard.
class DashboardSummary {
  final ServerSummary servers;
  final AlertSummary alerts;
  final int runningTasks;
  final int totalTasks;

  const DashboardSummary({
    required this.servers,
    required this.alerts,
    required this.runningTasks,
    required this.totalTasks,
  });
}

/// Summary counts for server fleet status.
class ServerSummary {
  final int total;
  final int online;
  final int warning;
  final int offline;

  const ServerSummary({
    required this.total,
    required this.online,
    required this.warning,
    required this.offline,
  });
}

/// Summary counts for alert severities.
class AlertSummary {
  final int critical;
  final int warning;
  final int info;

  const AlertSummary({
    required this.critical,
    required this.warning,
    required this.info,
  });

  int get total => critical + warning + info;
}