public async Task HandleAsync(ColdSpellEnteredNotification message)
{
Trace.TraceInformation("{0}: HANDLE: {1} {{Temp: {2}, EnteredAt: {3}}}.", message.DeviceId, message.GetType().Name, message.CurrentTemp, message.EnteredAt);
var coldSpell = await _coldSpellRepository.GetAsync(message.DeviceId, message.SensorId);
var utcNow = _dateTimeProvider.UtcNow();
if (coldSpell != null)
{
Trace.TraceInformation("{0}: INFO: Last cold spell for sensor {1} occurred at {2}.", message.DeviceId, message.SensorId, coldSpell.AlertedAt);
if (utcNow - coldSpell.AlertedAt > TimeSpan.FromHours(6))
{
SendAlert(message);
coldSpell.AlertedAt = utcNow;
await _coldSpellRepository.SaveAsync(coldSpell);
}
}
else
{
SendAlert(message);
coldSpell = new ColdSpell
{
DeviceId = message.DeviceId,
SensorId = message.SensorId,
AlertedAt = utcNow
};
await _coldSpellRepository.SaveAsync(coldSpell);
}
}
