public List <Device> GetDisconnectedDevices(string offlineStatus)
{
var devices = _mongo.Devices.AsQueryable()
.Where(d => d.Status != offlineStatus)
.Where(d => d.DeviceClass.OfflineTimeout != null)
.Select(d => new { ID = d.ID, LastOnline = d.LastOnline, OfflineTimeout = d.DeviceClass.OfflineTimeout }).ToList();
var deviceIds = new List <int>();
var timestamp = _mongo.GetCurrentTimestamp();
foreach (var device in devices)
{
if (device.LastOnline == null || device.LastOnline < timestamp.AddSeconds(-device.OfflineTimeout.Value))
{
deviceIds.Add(device.ID);
}
}
return(_mongo.Devices.Find(Query <Device> .In(e => e.ID, deviceIds)).ToList());
}
public DateTime GetCurrentTimestamp()
{
return(_mongo.GetCurrentTimestamp());
}