namespace AibisDream.SaveSystem
{
    /// <summary>
    /// 一次性注册 P1 所需的全部 <see cref="ISnapshotProvider"/>。
    /// 由 <see cref="YarnVariableStorage"/> 与 <see cref="SnapshotService"/> 在首次使用时调用。
    /// </summary>
    public static class SnapshotBootstrap
    {
        private static bool _initialized;

        /// <summary>幂等；重复调用无副作用。</summary>
        public static void EnsureInitialized()
        {
            if (_initialized) return;
            _initialized = true;

            SnapshotRegistry.Register(new EnvironmentSnapshotProvider());
            SnapshotRegistry.Register(new ActorSnapshotProvider());
            SnapshotRegistry.Register(new AudioSnapshotProvider());
            SnapshotRegistry.Register(new TimelineSnapshotProvider());
            SnapshotRegistry.Register(new FixSnapshotProvider());
            SnapshotRegistry.Register(new ScreenSnapshotProvider());
        }
        
    }
}