public async Task SaveSessionInfoAsync(SaveSessionInfoCommand command, CancellationToken cancellationToken = default)
{
var(sessionInfo, session) = command;
if (Computed.IsInvalidating())
{
GetSessionInfoAsync(session, default).Ignore();
return;
}
if (sessionInfo.Id != session.Id)
{
throw new ArgumentOutOfRangeException(nameof(sessionInfo));
}
var now = Clock.Now.ToDateTime();
sessionInfo = sessionInfo with {
LastSeenAt = now
};
await using var dbContext = await CreateCommandDbContextAsync(cancellationToken).ConfigureAwait(false);
var dbSession = await GetOrCreateSessionAsync(dbContext, session, cancellationToken).ConfigureAwait(false);
dbSession.LastSeenAt = sessionInfo.LastSeenAt;
dbSession.IPAddress = sessionInfo.IPAddress;
dbSession.UserAgent = sessionInfo.UserAgent;
dbSession.ExtraPropertiesJson = ToJson(sessionInfo.ExtraProperties !.ToDictionary(kv => kv.Key, kv => kv.Value));
await dbContext.SaveChangesAsync(cancellationToken);
}
public async Task UpdatePresenceAsync(Session session, CancellationToken cancellationToken = default)
{
var sessionInfo = await GetSessionInfoAsync(session, cancellationToken).ConfigureAwait(false);
var now = Clock.Now.ToDateTime();
var delta = now - sessionInfo.LastSeenAt;
if (delta < TimeSpan.FromMinutes(3))
{
return; // We don't want to update this too frequently
}
sessionInfo = sessionInfo with {
LastSeenAt = now
};
var command = new SaveSessionInfoCommand(sessionInfo, session).MarkServerSide();
await SaveSessionInfoAsync(command, cancellationToken).ConfigureAwait(false);
}
