using System.IO;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

#if UNITY_EDITOR_64 || UNITY_STANDALONE_WIN64

#else
//[RequireComponent(typeof(AVProQuickTimeManager))]
#endif
public class MoviePlayerPool : PoolBase<MoviePlayerPool>
{
    public enum QueryStrategy
    {
        GetUnique,
        CreateNew,
    }

    public Dictionary<string, MoviePlayerBase> movie_collection = new Dictionary<string, MoviePlayerBase>();
    Dictionary<string, List<MovieLock>> avpro_movies2 = new Dictionary<string, List<MovieLock>>();

    public MoviePlayerBase GetMoviePlayer(DShowClip clip, bool loop = true, QueryStrategy strategy = QueryStrategy.GetUnique)
    {
        if (clip == null)
            return null;
        MoviePlayerBase result = null;
        switch (strategy)
        {
            case QueryStrategy.GetUnique:
                {
                    if (movie_collection.ContainsKey(clip.fullPath) == false)
                    {
                        MoviePlayerBase m = GetMovie(clip, loop);

                        if (movie_collection.ContainsKey(clip.fullPath) == false)
                            movie_collection.Add(clip.fullPath, m);
                    }
                    result = movie_collection[clip.fullPath];
                    break;
                }
            case QueryStrategy.CreateNew:
                {
                    if (avpro_movies2.ContainsKey(clip.fullPath) == false)
                    {
                        avpro_movies2[clip.fullPath] = new List<MovieLock>();
                    }

                    List<MovieLock> candidates = avpro_movies2[clip.fullPath];
                    //print(filename);
                    foreach (var m in candidates)
                    {
                        //print(m.isLocked);
                        if (m.isLocked == false)
                        {
                            m.movie.Loop = loop;
                            m.isLocked = true;
                            return m.movie;
                        }
                    }
                    var movie = GetMovie(clip, loop);
                    avpro_movies2[clip.fullPath].Add(new MovieLock(movie));

                    result = movie;
                    break;
                }
        }
        return result;
    }

    class MovieLock
    {
        public MoviePlayerBase movie;
        public bool isLocked;
        public MovieLock(MoviePlayerBase movie)
        {
            this.movie = movie;
            isLocked = true;
        }
    }

    public void releaseMovie(MoviePlayerBase movie)
    {
        foreach (var l in avpro_movies2)
        {
            List<MovieLock> candidates = l.Value;
            for (int i = 0; i < candidates.Count; i++)
            {
                MovieLock m = candidates[i];
                if (m.movie == movie)
                {
                    m.isLocked = false;
                    m.movie.Stop();
                }
            }
        }
    }

    MoviePlayerBase GetMovie(DShowClip videoAsset, bool loop)
    {
#if true
        MoviePlayerBase movie = null;
        var file_info = GetFileInfo(videoAsset.fullPath);
        string path = file_info.FullName;
        string ext = file_info.Extension;

        if ( ext.Equals(".avi"))
        {
            movie = gameObject.AddComponent<DShowMoviePlayer>();
            if (movie.Load(videoAsset) == false)
            {
                Debug.Log("Failed to load " + videoAsset.fullPath);
                Destroy(movie);
            }
        }
#else
        MoviePlayerBase movie = null;
        var file_info = GetFileInfo(filename);
        string path = file_info.FullName;
        string ext  = file_info.Extension;
        bool try_load_image = false;
        Debug.Log("loading file: " + path);

        if (ext.Equals(".mov")|| ext.Equals(".avi"))
        {
#if UNITY_EDITOR_64 || UNITY_STANDALONE_WIN64
#else
            //if(ext.Equals(".mov"))
            //    movie = gameObject.AddComponent<AVProQuickTimeMoviePlayer>();
            //else
#endif
                movie = gameObject.AddComponent<DShowMoviePlayer>();

            if (movie.Load(path) == false)
            {
                Destroy(movie);
                try_load_image = true;
                path = Path.ChangeExtension(path, ".jpg");
                filename = Path.ChangeExtension(filename, ".jpg");
            }
        }
        else if (ext.Equals(".jpg") || ext.Equals(".png"))
        {
            try_load_image = true;
        }

        if (try_load_image)
        {
            movie = gameObject.AddComponent<ImageMoviePlayer>();
            movie.Load(path);
        }
#endif
        if (movie != null)
        {
            movie.Loop = loop;
            //movie.Filename = filename;
            //movie.DataRoot = dataRoot;
        }
        else
        {
            //Debug.LogFormat("[Movie Player Pool] unknown file: {0}", filename);
        }

        return movie;
    }
}