public interface IAlarm
    {
        string MilestoneCameraId { get; set; }
        string AnalyticEventName { get; set; }
        string Description { get; set; }
    }

    public class BaseAlarm : IAlarm
    {
        public string MilestoneCameraId { get; set; }
        public string AnalyticEventName { get; set; }
        public string Description { get; set; }

        public BaseAlarm(string milestoneCameraId, string analyticEventName, string description)
        {
            MilestoneCameraId = milestoneCameraId;
            AnalyticEventName = analyticEventName;
            Description = description;
        }
    }


    public class SendAlarm
    {
        public List<Item> LstItems;
        Item _selectedItem;

        public SendAlarm()
        {
            LoadCams();
        }

        public void LoadCams()
        {
            List<Item> lstItemsAll = Configuration.Instance.GetItemsBySearch("", 50, 5, out _);
            LstItems = new List<Item>();
            foreach (Item itm in lstItemsAll)
            {
                //pouze vstupy
                if ((itm.FQID.Kind == Kind.InputEvent || itm.FQID.Kind == Kind.Output) && itm.HasChildren == HasChildren.No)
                    LstItems.Add(itm);
            }
        }

        public List<Item> GetCams()
        {
            return LstItems;
        }


        private Item SearchItem(string milestoneId)
        {
            foreach (Item itm in LstItems)
            {
                if (itm.Name.Contains(milestoneId))
                {
                    return itm;
                }
            }
            return null;
        }

        private bool IsItemSelected(IAlarm alarm)
        {
            _selectedItem = SearchItem(alarm.MilestoneCameraId);
            if (_selectedItem == null)
            {
                //kamera v Milestone dle IP nenalezena, zkusim obnovit seznam kamer
                LoadCams();
                //znovu prohledam dle IP
                _selectedItem = SearchItem(alarm.MilestoneCameraId);
                if (_selectedItem == null)
                {
                    LogError("Nenalezena kamera pro udalost " + alarm.AnalyticEventName + " dle IP " + alarm.MilestoneCameraId + " v seznamu kamer v Milestone!");
                    return false;
                }
            }
            return true;
        }

        private EventSource CreateEventSource()
        {
            return new EventSource()
            {
                // Send empty - it is possible to send without an eventsource, but the intended design is that there should be a source
                // the FQID is primamry used to match up the ObjectId with the a camera.
                FQID = _selectedItem.FQID,
                // If FQID is null, then the Name can be an IP address, and the event server will make a lookup to find the camera
                Name = _selectedItem.Name
            };
        }

        private EventHeader CreateEventHeader(IAlarm alarm)
        {
            return new EventHeader
            {
                ID = Guid.NewGuid(),
                Type = "LoRaEvent",
                Timestamp = DateTime.Now,
                Message = alarm.AnalyticEventName,
                Source = CreateEventSource(),
                CustomTag = "TagFromLoraServer"
            };
        }

        private AnalyticsEvent CreateAnalyticEvent(IAlarm alarm)
        {
            AnalyticsEvent tmp = new AnalyticsEvent
            {
                EventHeader = CreateEventHeader(alarm),
                Location = "Event on cam 1",
                Description = alarm.Type == EAlarmType.Battery ? ((IBatteryAlarm)alarm).Value : alarm.Description,
                Vendor = new Vendor
                {
                    Name = alarm.Type.ToString()
                }
            };
            return tmp;
        }

        public bool SendAlarm(IAlarm alarm)
        {
            try
            {
                if (!IsItemSelected(alarm))
                    return false;
                //if (chkIncludeOverlay.Checked)
                //{
                //    analyticEvent.ObjectList = new AnalyticsObjectList
                //    {
                //        GetRectangle()
                //    };
                //}
                EnvironmentManager.Instance.SendMessage(
                    new VideoOS.Platform.Messaging.Message(MessageId.Server.NewEventCommand)
                    { Data = CreateAnalyticEvent(alarm) });
                return true;
            }
            catch (Exception e)
            {
                LogError("Milestone.sendAlarm()" + e.Message);
                return false;
            }

        }
    }