namespace Mr.BrickAdventures.Progression.Adapters;

/// <summary>
/// Keeps the Profile in its own JSON file, beside the Playthrough files but written independently.
/// </summary>
public sealed class JsonProfileStore : IProfileStore
{
    /// <summary>Versioned separately from Playthroughs — the two shapes drift at their own pace.</summary>
    private const int CurrentVersion = 1;

    private readonly string _path;

    public JsonProfileStore(string directory) => _path = Path.Combine(directory, "profile.json");

    public void Save(Profile profile) =>
        JsonFiles.WriteAtomic(_path, CurrentVersion, profile.Export());

    public LoadResult<Profile> Load() =>
        JsonFiles.Read<ProfileSnapshot, Profile>(_path, CurrentVersion, Profile.Restore);
}