using System;
using System.Numerics;
using AcDream.Core.Physics;
using DatReaderWriter.Types;

namespace AcDream.App.Audio;

/// <summary>
/// Hook sink for UI-OWNED presentations (the portal tunnel is retail's
/// <c>gmSmartBoxUI</c>): sound-bearing hooks go to the interface bus — from
/// centre, distance 0, immune to the world-audio suspension that covers
/// reveal holds — while every other hook kind forwards to the shared router
/// unchanged, so particles/lighting/translucency behave exactly as before.
///
/// <para>
/// Without this split the tunnel's authored in-flight <c>SoundTweakedHook</c>
/// went down the world 3-D path at the synthetic owner's origin: usually
/// beyond the −50 dB no-allocate radius AND inside the suspended-transit
/// window, so the tunnel interior was silent while the enter/exit cues (on
/// the interface bus already) played fine.
/// </para>
/// </summary>
public sealed class UiPresentationHookSink : IAnimationHookSink
{
    private readonly IAnimationHookSink _router;
    private readonly AudioHookSink? _audio;

    public UiPresentationHookSink(IAnimationHookSink router, AudioHookSink? audio)
    {
        _router = router ?? throw new ArgumentNullException(nameof(router));
        _audio = audio;
    }

    public void OnHook(uint entityId, Vector3 entityWorldPosition, AnimationHook hook)
    {
        if (hook is SoundHook or SoundTableHook or SoundTweakedHook)
        {
            // With no audio graph (headless/driver-less) the sound hook is
            // simply dropped — forwarding it to the router would put it back
            // on the world 3-D path this sink exists to bypass.
            _audio?.OnUiHook(entityId, hook);
            return;
        }

        _router.OnHook(entityId, entityWorldPosition, hook);
    }
}