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

namespace JD.Serialization
{
    partial class TapeTrack
    {
        #region Variables

        private Tape _tape;

        #endregion

        #region Constructor

        public TapeTrack()
        {
            Height = 25;
        }

        #endregion

        #region Properties

        public Tape Tape
        {
            get { return _tape; }
            set
            {
                if (_tape != value)
                {
                    _tape = value;
                    OnPropertyChanged();
                }
            }
        }
        
        public int Index
        {
            get { return Tape?.Tracks.IndexOf(this) ?? -1; }
        }
        
        /// <summary>
        /// Non serialized value of the current height of the track.
        /// </summary>
        [UAFSerializable(SerializationFlags.UndoRedo)]
        public int Height { get; set; }

        #endregion

        #region Methods

        public override string ToString()
        {
            if (Name == "")
            {
                return $"Track {Index}";
            }

            return Name;
        }

        public IEnumerable<Clip> Clips()
        {
            return _tape.Clips.Where(clip => clip.TrackId == Id);
        }

        public virtual IEnumerable<System.Type> ClipTypes()
        {
            return Enumerable.Empty<System.Type>();
        }

        public bool IsClipAllowed(System.Type type)
        {
            return !ClipTypes().Any() || ClipTypes().Contains(type);
        }

        #endregion methods
    }
}