using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using Aurora.Frontend.Utils;

namespace Aurora.Frontend.Views.Songs
{
    public class SongsViewModel : BaseViewModel
    {
        #region Fields
        private string _pathName = "/Users/brandonwatson/Music/iTunes/iTunes Media/Music";
        private string _extensions = ".wav,.mp3,.aiff,.flac,.m4a,.m4b,.wma";
        private ObservableCollection<Song> _songsList;
        private Song _selectedSong;

        #endregion Fields

        #region Constructor
        public SongsViewModel()
        {
            _songsList = new ObservableCollection<Song>();
            Initialize();
        }

        #endregion Constructor

        #region Properties
        public ObservableCollection<Song> SongsList
        {
            get { return _songsList; }
            set
            {
                if (value != _songsList)
                {
                    _songsList = value;
                    OnPropertyChanged("SongList");
                }
            }
        }

        public Song SelectedSong
        {
            get { return _selectedSong; }
            set
            {
                if (value != _selectedSong)
                {
                    _selectedSong = value;
                    OnPropertyChanged("SelectedSong");
                }
            }
        }

        #endregion Properties

        #region Methods
        public void Initialize()
        {
            List<FileInfo> musicFiles = FileSystemUtils.TraverseFoldersAsync(_pathName, _extensions);

            foreach (FileInfo file in musicFiles)
            {
                TagLib.File tagFile = TagLib.File.Create(file.FullName);
                _songsList.Add(new Song()
                {
                    Title = tagFile.Tag.Title,
                    Album = tagFile.Tag.Album,
                    Artist = tagFile.Tag.FirstAlbumArtist
                });
            }
        }

        #endregion Methods

    }
}