protected override async void MessageReceivedHandler(string deviceType, string deviceId, string subTopic, string payload)
{
if (deviceType == "scale")
{
var remoteScale = m_RemoteScales.FirstOrDefault(scale => scale.DeviceId == deviceId);
switch (subTopic)
{
case "heartbeat":
if (remoteScale == null)
{
remoteScale = new RemoteScale {
DeviceId = deviceId
};
m_RemoteScales.Add(remoteScale);
await NetClient.PublishAsync($"scale/{remoteScale.DeviceId}/weight/get");
await NetClient.PublishAsync($"scale/{remoteScale.DeviceId}/global_position/get");
}
await ProcessHeartbeat(remoteScale);
break;
case "weight":
remoteScale?.WeightFromJson(payload);
break;
case "global_position":
remoteScale?.GlobalPositionFromJson(payload);
if (remoteScale != null)
{
remoteScale.IsGlobalPositionCoarse = false;
}
break;
case "wifi":
await UpdateBeacons(payload);
break;
}
}
else
{
switch (subTopic)
{
case "global_position":
UpdateBeaconPosition(deviceId, payload);
break;
}
}
}
private async Task ProcessHeartbeat(RemoteScale remoteScale)
{
remoteScale.AliveTimestamp = Stopwatch.GetTimestamp();
if (remoteScale.AliveTimestamp - m_WiFiScanTimestamp > Stopwatch.Frequency * 5)
{
await NetClient.PublishAsync($"scale/{remoteScale.DeviceId}/wifi/scan");
m_WiFiScanTimestamp = remoteScale.AliveTimestamp;
}
if (!remoteScale.HasGlobalPosition || remoteScale.IsGlobalPositionCoarse)
{
var coarsePosition = Beacon.ComputeGlobalPosition(m_Beacons);
if (coarsePosition != null)
{
remoteScale.GlobalPosition = coarsePosition;
remoteScale.IsGlobalPositionCoarse = true;
}
}
}
