private DecodedMessage DecodeMessage(RawMessage raw)
{
var decoded = new DecodedMessage();
decoded.AvgSignal = raw.AvgSignal;
decoded.Data = raw.Data;
decoded.Device = raw.Device;
decoded.Duplicate = raw.Duplicate;
decoded.Latitude = raw.Latitude;
decoded.Longitude = raw.Longitude;
decoded.Rssi = raw.Rssi;
decoded.SeqNumber = raw.SeqNumber;
decoded.Signal = raw.Signal;
decoded.Station = raw.Station;
decoded.Time = raw.Time;
var d = StringToByteArray(raw.Data);
decoded.Mode = (Mode)(d[0] & 0x7);
decoded.Periode = (Periode)((d[0] & 0x18) >> 3);
decoded.Type = (FrameType)((d[0] >> 4) & 0x3);
decoded.Battery = (((d[0] >> 7) * 16) + (d[1] >> 4) + 54) / 20.0;
decoded.Temperature = ((d[1] & 0xF) * 64 - 200) / 10.0;
if ((decoded.Type == FrameType.Regular) && (decoded.Mode == Mode.Light))
{
var valeur = (d[2] << 2) >> 2;
var multi = d[2] >> 6;
switch (multi)
{
case 0:
multi = 1;
break;
case 1:
multi = 8;
break;
case 2:
multi = 64;
break;
case 3:
multi = 2014;
break;
}
decoded.Light = Convert.ToSingle(multi * valeur * 0.01);
}
//Door
else if ((decoded.Type == FrameType.Regular) && (decoded.Mode == Mode.Door))
{
//
}
else
{
decoded.Temperature = (((d[1] >> 4) << 6) + (d[2] & 0x3F) - 200) / 8.0;
decoded.ILS = (d[2] & 0x20) != 0;
}
//Button
if (decoded.Mode == Mode.Button)
{
decoded.Version = new Version(string.Format("{0}.{1}", d[3] >> 4, d[3] & 0xF));
}
//Temperature
else if (decoded.Mode == Mode.TemperatureHumidity)
{
decoded.Humidity = d[3] * 0.5;
}
else
{
decoded.AlertCount = Convert.ToInt32(d[3]);
}
return decoded;
}
private async Task StoreInDatabaseAsync(DecodedMessage message)
{
if (sqlCommand == null)
return;
sqlCommand.Parameters["@Device"].Value = message.Device;
sqlCommand.Parameters["@Data"].Value = message.Data;
sqlCommand.Parameters["@Mode"].Value = message.Mode;
sqlCommand.Parameters["@Periode"].Value = message.Periode;
sqlCommand.Parameters["@FrameType"].Value = message.Type;
sqlCommand.Parameters["@Battery"].Value = message.Battery;
sqlCommand.Parameters["@Temperature"].Value = message.Temperature;
sqlCommand.Parameters["@Humidity"].Value = message.Humidity;
sqlCommand.Parameters["@ILS"].Value = message.ILS;
sqlCommand.Parameters["@Light"].Value = message.Light;
sqlCommand.Parameters["@Version"].Value = message.Version.ToString();
sqlCommand.Parameters["@AlertCount"].Value = message.AlertCount;
sqlCommand.Parameters["@TimeStamp"].Value = message.Time;
sqlCommand.Parameters["@Duplicate"].Value = message.Duplicate;
sqlCommand.Parameters["@Signal"].Value = message.Signal;
sqlCommand.Parameters["@Station"].Value = message.Station;
sqlCommand.Parameters["@AvgSignal"].Value = message.AvgSignal;
sqlCommand.Parameters["@Latitude"].Value = message.Latitude;
sqlCommand.Parameters["@Longitude"].Value = message.Longitude;
sqlCommand.Parameters["@Rssi"].Value = message.Rssi;
sqlCommand.Parameters["@SeqNumber"].Value = message.SeqNumber;
await sqlCommand.ExecuteNonQueryAsync();
}
private async Task CheckAlertAsync(DecodedMessage message)
{
if (cacheDatabase == null)
return;
string json = await cacheDatabase.StringGetAsync("message-" + message.Device);
if (json == null)
return;
DecodedMessage cached = null;
try
{
cached = JsonConvert.DeserializeObject<DecodedMessage>(json);
}
catch
{
}
if (cached == null)
return;
if ((message.Type == FrameType.Alert) || (message.Mode == Mode.Button) || (Math.Abs(message.Temperature - cached.Temperature) > 10))
{
var alert = new AlertMessage();
alert.Device = message.Device;
var alertMessage = JsonConvert.SerializeObject(alert);
await hubClient.SendAsync(new EventData(Encoding.UTF8.GetBytes(alertMessage)));
}
}
