namespace Mr.BrickAdventures.Progression;

/// <summary>
/// A Playthrough's state as plain data, for crossing the persistence seam.
/// </summary>
/// <remarks>
/// Deliberately primitives rather than value objects. A serialiser constructing <see cref="LevelId"/>
/// or <see cref="Coins"/> directly would bypass their factories and every guard in them, so instead
/// <see cref="Playthrough.Restore"/> re-runs those factories and a corrupt file fails at the domain
/// edge. Carries no version field — versioning and migration belong to the store adapter, so the
/// domain only ever knows the current shape.
/// </remarks>
public sealed record PlaythroughSnapshot(
    Guid Id,
    int Lives,
    int Bank,
    string CurrentLevel,
    IReadOnlyDictionary<string, int> OwnedSkills,
    IReadOnlyList<string> ClearedLevels);