using MediaBrowser.Model.Entities;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization;

namespace MediaBrowser.Controller.Entities
{
    /// <summary>
    /// Class Video
    /// </summary>
    public class Video : BaseItem, IHasMediaStreams
    {
        public Video()
        {
            MediaStreams = new List<MediaStream>();
            Chapters = new List<ChapterInfo>();
            PlayableStreamFileNames = new List<string>();
        }

        /// <summary>
        /// Gets or sets the type of the video.
        /// </summary>
        /// <value>The type of the video.</value>
        public VideoType VideoType { get; set; }

        /// <summary>
        /// Gets or sets the type of the iso.
        /// </summary>
        /// <value>The type of the iso.</value>
        public IsoType? IsoType { get; set; }

        /// <summary>
        /// Gets or sets the format of the video.
        /// </summary>
        /// <value>The format of the video.</value>
        public VideoFormat VideoFormat { get; set; }

        /// <summary>
        /// Gets or sets the media streams.
        /// </summary>
        /// <value>The media streams.</value>
        public List<MediaStream> MediaStreams { get; set; }

        /// <summary>
        /// Gets or sets the chapters.
        /// </summary>
        /// <value>The chapters.</value>
        public List<ChapterInfo> Chapters { get; set; }

        /// <summary>
        /// If the video is a folder-rip, this will hold the file list for the largest playlist
        /// </summary>
        public List<string> PlayableStreamFileNames { get; set; }

        /// <summary>
        /// Gets the playable stream files.
        /// </summary>
        /// <returns>List{System.String}.</returns>
        public List<string> GetPlayableStreamFiles()
        {
            return GetPlayableStreamFiles(Path);
        }
        
        /// <summary>
        /// Gets the playable stream files.
        /// </summary>
        /// <param name="rootPath">The root path.</param>
        /// <returns>List{System.String}.</returns>
        public List<string> GetPlayableStreamFiles(string rootPath)
        {
            if (PlayableStreamFileNames == null)
            {
                return null;
            }

            var allFiles = Directory.EnumerateFiles(rootPath, "*", SearchOption.AllDirectories).ToList();

            return PlayableStreamFileNames.Select(name => allFiles.FirstOrDefault(f => string.Equals(System.IO.Path.GetFileName(f), name, System.StringComparison.OrdinalIgnoreCase)))
                .Where(f => !string.IsNullOrEmpty(f))
                .ToList();
        }

        /// <summary>
        /// The default video stream for this video.  Use this to determine media info for this item.
        /// </summary>
        /// <value>The default video stream.</value>
        [IgnoreDataMember]
        public MediaStream DefaultVideoStream
        {
            get { return MediaStreams != null ? MediaStreams.FirstOrDefault(s => s.Type == MediaStreamType.Video) : null; }
        }

        /// <summary>
        /// Gets a value indicating whether [is3 D].
        /// </summary>
        /// <value><c>true</c> if [is3 D]; otherwise, <c>false</c>.</value>
        [IgnoreDataMember]
        public bool Is3D
        {
            get { return VideoFormat > 0; }
        }

        /// <summary>
        /// Gets the type of the media.
        /// </summary>
        /// <value>The type of the media.</value>
        public override string MediaType
        {
            get
            {
                return Model.Entities.MediaType.Video;
            }
        }
    }
}