namespace NeonSprawl.Server.Game.Encounters;

/// <summary>Idempotent per-player encounter completion flag (NEO-104; rewards applied in NEO-105).</summary>
public interface IEncounterCompletionStore
{
    bool IsCompleted(string playerId, string encounterId);

    /// <summary>First mark returns <c>true</c>; replays return <c>false</c>.</summary>
    bool TryMarkCompleted(string playerId, string encounterId, DateTimeOffset completedAt);

    bool TryGetCompletedAt(string playerId, string encounterId, out DateTimeOffset completedAt);
}