namespace SVSim.BattleNode.Reliability;

/// <summary>
/// Body builders for the alive channel. The timer/loop that drives 5s emits lives on
/// BattleSession; this class is just the pure body-shape factory.
/// v1 always reports scs/ocs=ONLINE — real disconnect detection is deferred.
/// </summary>
public static class Gungnir
{
    public static readonly TimeSpan EmitInterval = TimeSpan.FromSeconds(5);

    public static Dictionary<string, object?> BuildAliveEmitBody(InboundTracker tracker) => new()
    {
        ["currentSeq"] = tracker.HighWaterMark,
        // actionSeq omitted in v1 — no turn-transition flag yet.
    };

    public static Dictionary<string, object?> BuildAlivePushBody() => new()
    {
        ["scs"] = "ONLINE",
        ["ocs"] = "ONLINE",
    };
}