using System.Collections.Generic;
using uc;
using UnityEngine;
using UnityEngine.UI;

[RequireComponent(typeof(RawImage))]
public class MoviePlayerCanvas : ActivityBase
{
    //public List<string> filenames;
    public List<DShowClip> filenames;
    public bool loop;

    RawImage raw_image;
    Texture origin_tex;
    List<MoviePlayerBase> movies;
    int index = -1;

    MoviePlayerBase current_movie { get { return (index < 0) ? null : movies[index]; } }

    void Awake()
    {
        raw_image = GetComponent<RawImage>();
        origin_tex = raw_image.mainTexture;
        movies = new List<MoviePlayerBase>();
    }

    void Start()
    {
        if (filenames.Count == 0 && origin_tex != null)
        {
            
            //filenames.Add(origin_tex.name + ".mov");
        }
        foreach (var fs in filenames)
        {
            movies.Add(MoviePlayerPool.Singleton.GetMoviePlayer(fs, false));
        }
        if (movies.Count > 0)
        {
            var m = movies[movies.Count - 1];
            m.Loop = loop;
        }
    }

    private void OnEnable()
    {
        index = -1;
    }

    protected override void OnEnter()
    {

    }

    protected override void OnUpdate()
    {

        if (IsEntering == false)
            return;

        if (movies.Count > 0)
        {
            if (index < 0)
            {
                index = 0;
                if (current_movie != null)
                {
                    current_movie.Play();
                    current_movie.Frame = 0;
                }
            }
            else
            {
                if (current_movie != null)
                {
                    bool is_stopped = current_movie.IsPaused;
                    if (is_stopped)
                    {
                        if (index < movies.Count - 1)
                        {
                            //print("next movie");
                            movies[++index].Play();
                            is_stopped = false;
                        }
                    }
                    raw_image.texture = current_movie.IsLoaded ? current_movie.Texture : origin_tex;
                    if (current_movie.Loop == false)
                        IsFinished = is_stopped && (index == movies.Count - 1);
                }
            }

            if (IsFinished)
            {
                Finish();
            }

        }
    }

    void OnDisable()
    {
        if (movies.Count > 0)
        {
            if (index > -1)
            {
                foreach (var m in movies)
                {
                    m.Stop();
                    m.Frame = 0;
                }
            }
        }
    }

    protected override void OnLeave()
    {

    }

    protected override void OnKilled()
    {

    }
}