using System.Collections.Generic;
using System.Linq;

namespace Inspectron.HawkEye.RTSP.Sdp
{
    public class Media
    {
        private string mediaString;

        public Media(string mediaString)
        {
            // Example is   'video 0 RTP/AVP 26;
            this.mediaString = mediaString;

            var parts = mediaString.Split(new char[] { ' ' } , 4);

            if (parts.Count() >= 1) {
                if (parts[0].Equals("video")) MediaType =  MediaTypes.video;
                else if (parts[0].Equals("audio")) MediaType = MediaTypes.audio;
                else if (parts[0].Equals("text")) MediaType = MediaTypes.text;
                else if (parts[0].Equals("application")) MediaType =  MediaTypes.application;
                else if (parts[0].Equals("message")) MediaType = MediaTypes.message;
                else MediaType = MediaTypes.unknown; // standard does allow for future types to be defined
            }

            int pt;
            if (parts.Count() >= 4) {
                if(int.TryParse(parts[3], out pt))
                {
                    PayloadType = pt;
                } else {
                    PayloadType = 0;
                }
            }
        }

        // RFC4566 Media Types
        public enum MediaTypes { video, audio, text, application, message, unknown };

        public Connection Connection { get; set; }

        public Bandwidth Bandwidth { get; set; }

        public EncriptionKey EncriptionKey { get; set; }

        public MediaTypes MediaType { get; set; }

        public int PayloadType { get; set; }

        private readonly List<Attribut> attributs = new List<Attribut>();

        public IList<Attribut> Attributs
        {
            get
            {
                return attributs;
            }
        }
    }
}