private async Task ProcessEvent(RfidEvent ev)
{
var boat = await this.bsCache.GetResourceFromRfidTagAsync(ev.Id);
var makerChannelKey = (await this.bsCache.GetBotUserAsync()).MakerChannelKey();
string doorName = "Unknown";
if (ev.Antenna < this.currentClub.DoorNames.Count)
{
doorName = this.currentClub.DoorNames[ev.Antenna];
}
this.LogBoatEvent(boat, doorName, ev);
if (boat == null)
{
await this.SendIftttTrigger(makerChannelKey, "new_tag", ev.Timestamp.Value.ToString(), ev.Id, doorName);
return;
}
await this.SendIftttTrigger(makerChannelKey, ev.EventType, ev.Timestamp.Value.ToString(), boat.Name(), doorName);
//
// TODO: Looks for a reservation to see if we can just annotate it with in/out times.
// Otherwise, we need to create a reservation with an "unknown" rower to log the usage.
//
}
private void LogBoatEvent(JToken boat, string doorName, RfidEvent ev)
{
if (boat != null)
{
this.telemetryClient.TrackEvent(
ev.EventType,
new Dictionary<string, string>
{
["ClubId"] = this.currentClub.Id,
["Timestamp"] = ev.Timestamp.Value.ToString(),
["TagId"] = ev.Id,
["BoatName"] = boat.Name(),
["DoorName"] = doorName
});
}
else
{
this.telemetryClient.TrackEvent(
"new_tag",
new Dictionary<string, string>
{
["ClubId"] = this.currentClub.Id,
["Timestamp"] = ev.Timestamp.Value.ToString(),
["DoorName"] = doorName,
["TagId"] = ev.Id,
});
}
}
/// <summary>
/// It will be common to get two events for the same boat close together since we
/// normally have two tags per boat. We want to make sure we only process the first
/// event in this case and ignore the redundant ones.
/// </summary>
/// <param name="ev">An incoming event</param>
/// <returns>True if the event is redundant</returns>
public async Task<bool> IsEventRedundantAsync(RfidEvent ev)
{
if (!ev.Timestamp.HasValue)
{
ev.Timestamp = DateTime.Now;
}
var boat = await this.GetResourceFromRfidTagAsync(ev.Id);
if (boat == null)
{
// If the tag isn't associated with a boat, it can't be redundant
// but we also don't want to cache it.
return false;
}
var boatId = boat.ResourceId();
RfidEvent lastEvent;
bool isRedundant = true;
// If no event for this boat, this isn't redundant
if (!this.mapResourceIdToLastEvent.TryGetValue(boatId, out lastEvent))
{
isRedundant = false;
}
else if (lastEvent.Timestamp.Value + EventLifetime < DateTime.Now)
{
// If we haven't seen an event for this boat in a while, this isn't redundant
isRedundant = false;
}
else if (lastEvent.EventType != ev.EventType || lastEvent.Antenna != ev.Antenna)
{
// If the door or direction are different, this is a new event
isRedundant = false;
}
if (!isRedundant)
{
this.mapResourceIdToLastEvent.TryAdd(boatId, ev);
}
return isRedundant;
}