using System;
using UnityEngine;
using UnityEngine.Playables;
using UnityEngine.Timeline;
using UnityEngine.Video;

namespace uc.Timeline
{
    [Serializable]
    [TrackClipType(typeof(MoviePlayerClip))]
    //[TrackMediaType(TimelineAsset.MediaType.Script)]
    [TrackBindingType(typeof(MoviePlayerBase))]
    [TrackColor(0.53f, 0.0f, 0.08f)]
    //[SupportsChildTracks(typeof(MoviePlayerTrack), 1)]
    public class MoviePlayerTrack : TrackAsset
    {
        public override Playable CreateTrackMixer(PlayableGraph graph, GameObject go, int inputCount)
        {
            //Debug.Log("MoviePlayerTrack.CreateTrackMixer");
            // Hack to set the display name of the clip to match the vcam
            foreach (var c in GetClips())
            {
                MoviePlayerClip shot = (MoviePlayerClip)c.asset;
                //CinemachineVirtualCameraBase vcam = shot.VirtualCamera.Resolve(graph.GetResolver());
                if(shot.movie != null)
                    c.displayName = shot.movie.VideoAsset.fullPath;
            }

            var mixer = ScriptPlayable<MoviePlayerMixer>.Create(graph);
            mixer.SetInputCount(inputCount);
            return mixer;
        }

#if UNITY_2018_1_OR_NEWER
        internal protected new Playable CreatePlayable(PlayableGraph graph, GameObject go, TimelineClip clip)
#else
        protected override Playable CreatePlayable(PlayableGraph graph, GameObject go, TimelineClip clip)
#endif
        {
            //Debug.Log("MoviePlayerTrack.CreatePlayable");
            PlayableDirector d = go.GetComponent<PlayableDirector>();
            if (d != null)
            {
                MoviePlayerBase movie = d.GetGenericBinding(this) as MoviePlayerBase;
                if (movie != null && clip.asset is MoviePlayerClip)
                    (clip.asset as MoviePlayerClip).movie = movie;
            }
            return base.CreatePlayable(graph, go, clip);
        }
    }
}