using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Sony.Filtr.Contracts.Entities;
using Sony.Filtr.PlaylistSynchronization;
using Sony.Filtr.SpotifyWebAPI;
using Sony.Filtr.Utility.Extensions;

namespace Sony.Filtr.Worker.Onetime
{
    public class TrackSearchTest
    {
        private readonly ServiceAccountManager _serviceAccountManager;
        private readonly SpotifyWebApi _spotifyWebApi;

        public TrackSearchTest(ServiceAccountManager serviceAccountManager, SpotifyWebApi spotifyWebApi)
        {
            _serviceAccountManager = serviceAccountManager;
            _spotifyWebApi = spotifyWebApi;
        }

        public async Task ExecuteAsync()
        {
            var serviceAccount = _serviceAccountManager.GetServiceAccount(8);
            var authClient = _spotifyWebApi.GetAuthenticatedSession(serviceAccount);
            var targetPlaylist = new SpotifyLink("spotify:user:viruzi:playlist:4KoUjsUaHgLWgppFLRRku6");

            int maxLimit = 50;
            var query = "white christmas";
            var searchTracksResponse = await _spotifyWebApi.SearchTracksAsync(query, limit:maxLimit, offset: 0);

            int offsets = (searchTracksResponse.tracks.total + maxLimit-1) / maxLimit;
            var tracks = searchTracksResponse.tracks.items.ToList();
            await authClient.AddAllTrackAsync(targetPlaylist.ExtractSpotifyPlaylistUserName(), targetPlaylist.ExtractPlaylistID(), tracks.Select(t => t.uri).ToList());

            await Enumerable.Range(1, offsets).ForEachAsync(1, async offsetIndex =>
            {
                var response = await _spotifyWebApi.SearchTracksAsync(query, limit: maxLimit, offset: offsetIndex*maxLimit);
                var tracksWithCorrectTitle = response.tracks.items.Where(t => t.name.IndexOf(query, StringComparison.CurrentCultureIgnoreCase) > 0).ToList();
                if (tracksWithCorrectTitle.Any())
                {
                    await authClient.AddAllTrackAsync(targetPlaylist.ExtractSpotifyPlaylistUserName(), targetPlaylist.ExtractPlaylistID(), tracksWithCorrectTitle.Select(t => t.uri).ToList());
                }
                
            });
        }
    }
}