OnlineStatusChange RefreshStatus()
{
var newState = Status;
if (!OnlineLast.HasValue && !OfflineSince.HasValue)
{
newState = OnlineStatusOnline.Unknown;
}
else if (OnlineLast.HasValue && !OfflineSince.HasValue || OnlineLast > OfflineSince)
{
newState = OnlineStatusOnline.Online;
}
else if (OfflineSince + DebounceInterval < DateTimeOffset.Now)
{
newState = OnlineStatusOnline.Offline;
}
if (Status == newState)
{
return(new OnlineStatusChange(false, Status, Status));
}
if (newState == OnlineStatusOnline.Offline)
{
OnlineLast = null;
}
else if (newState == OnlineStatusOnline.Online)
{
OfflineSince = null;
}
var change = new OnlineStatusChange(true, Status, newState);
Status = newState;
return(change);
}
public ProcessDiscoveryChange(Device device, OnlineStatusChange change) : base(change.Changed, change.FromStatus, change.ToStatus)
{
Device = device;
}