var code        = Parameters["MachineCode"]?.ToString() ?? "";
var flaggedOnly = Parameters.Get<bool?>("FlaggedOnly") ?? false;
var includeAck  = Parameters.Get<bool?>("IncludeAcked") ?? true;
var minSev      = Parameters.Get<int?>("MinSeverity");
var maxSev      = Parameters.Get<int?>("MaxSeverity");
var nameFilter  = Parameters.ContainsKey("NameFilter") ? Parameters["NameFilter"]?.ToString() : null;
try {
    var alarms = flaggedOnly ? await Alarms.MesReportableAsync() : await Alarms.CurrentAsync();
    var infos = alarms
        .Where(a => a.Active && !a.IsConfiguredPlaceholder)
        .Where(a => minSev == null || a.Priority >= minSev)
        .Where(a => maxSev == null || a.Priority <= maxSev)
        .Where(a => string.IsNullOrEmpty(nameFilter) || a.Name.Contains(nameFilter, StringComparison.OrdinalIgnoreCase))
        .Where(a => includeAck || !a.Acknowledged)
        .Select(a => new {
            Name = a.Name,
            HierarchicalName = code + "." + a.Name,
            Description = !string.IsNullOrEmpty(a.Message) ? a.Message : !string.IsNullOrEmpty(a.AlarmTypeName) ? a.AlarmTypeName : a.Name,
            IsFlaggedForMES = a.IsMesReportable,
            Severity = a.Priority,   // MES Severity = the raw 0-999 priority (ScriptAlarm.Priority, #129)
            StatusCode = a.Acknowledged ? "Triggered.Acked" : "Triggered",
            TriggeredDT = (a.OriginalRaiseTime ?? a.Timestamp).ToString("o"),
            AckDT = a.AckTime?.ToString("o"),
            AckComment = a.OperatorComment })
        .ToList();
    return new { WasSuccessful = true, ErrorText = (string)null, Alarms = infos };
} catch (Exception ex) {
    return new { WasSuccessful = false, ErrorText = "AlarmStatus failed: " + ex.Message, Alarms = Array.Empty<object>() };
}