using System.Collections.Concurrent;

namespace SVSim.EmulatedEntrypoint.Services;

public class ShadowverseSessionService
{
    private readonly ConcurrentDictionary<string, Guid> _sessionIdToUdid;

    public ShadowverseSessionService()
    {
        _sessionIdToUdid = new();
    }

    public Guid? GetUdidFromSessionId(string sid)
    {
        if (_sessionIdToUdid.TryGetValue(sid, out var udid))
        {
            return udid;
        }

        return null;
    }

    public void StoreUdidForSessionId(string sid, Guid udid)
    {
        _sessionIdToUdid.AddOrUpdate(sid, _ => udid, (_, _) => udid);
    }
}