using MoreLinq;
using Sony.Filtr.Core.EditorialPlaylists;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace Sony.Filtr.Worker.Onetime
{
    public class ExportPlaylistForCategorizedAsArtists
    {
        private readonly EditorialPlaylistManager _editorialPlaylistManager;

        public ExportPlaylistForCategorizedAsArtists(EditorialPlaylistManager editorialPlaylistManager)
        {
            this._editorialPlaylistManager = editorialPlaylistManager;
        }

        public async Task ExecuteAsync()
        {
            var editorialPlaylist = await _editorialPlaylistManager.GetEditorialPlaylistsAsync(null, onlySony: false, onlyActive: false, lightWeight: true);

            var playlists = editorialPlaylist.Where(p => p.PriorityLevel == 2).DistinctBy(p=> p.SpotifyLink);

            var playlistsWithAttributes = await _editorialPlaylistManager.GetPlaylistAttributesAsync(playlists);
            using (FileStream playlistExportFile = File.Open("PlaylistExport.csv", FileMode.OpenOrCreate))
            {
                using (StreamWriter fileWriter = new StreamWriter(playlistExportFile))
                {
                    foreach (var extendedEditorialPlaylist in playlistsWithAttributes)
                    {
                        var csvRow = extendedEditorialPlaylist.EditorialPlaylist.SpotifyLinkUri + ";" + extendedEditorialPlaylist.EditorialPlaylist.Name.Replace(";", string.Empty) + ";" + extendedEditorialPlaylist.Attributes.Followers;
                        await fileWriter.WriteLineAsync(csvRow);
                    }
                }
            }
        }
    }
}