Selector/Selector.Cache/Consumer/PlayCounterCaching.cs

71 lines
2.3 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using IF.Lastfm.Core.Api;
using StackExchange.Redis;
using SpotifyAPI.Web;
namespace Selector.Cache
{
public class PlayCounterCaching: PlayCounter
{
private readonly IDatabaseAsync Db;
public TimeSpan CacheExpiry { get; set; } = TimeSpan.FromDays(1);
public PlayCounterCaching(
IPlayerWatcher watcher,
ITrackApi trackClient,
IAlbumApi albumClient,
IArtistApi artistClient,
IUserApi userClient,
IDatabaseAsync db,
LastFmCredentials credentials = null,
ILogger<PlayCounterCaching> logger = null,
CancellationToken token = default
) : base(watcher, trackClient, albumClient, artistClient, userClient, credentials, logger, token)
{
Db = db;
NewPlayCount += CacheCallback;
}
public void CacheCallback(object sender, PlayCount e)
{
Task.Run(async () => {
try
{
await AsyncCacheCallback(e);
}
catch (Exception e)
{
Logger.LogError(e, "Error occured during callback");
}
}, CancelToken);
}
public async Task AsyncCacheCallback(PlayCount e)
{
var track = e.ListeningEvent.Current.Item as FullTrack;
Logger.LogTrace($"Caching play count for [{track.DisplayString()}]");
var tasks = new Task[]
{
Db.StringSetAsync(Key.TrackPlayCount(e.Username, track.Name, track.Artists[0].Name), e.Track, expiry: CacheExpiry),
Db.StringSetAsync(Key.AlbumPlayCount(e.Username, track.Album.Name, track.Album.Artists[0].Name), e.Album, expiry: CacheExpiry),
Db.StringSetAsync(Key.ArtistPlayCount(e.Username, track.Artists[0].Name), e.Artist, expiry: CacheExpiry),
Db.StringSetAsync(Key.UserPlayCount(e.Username), e.User, expiry: CacheExpiry),
};
await Task.WhenAll(tasks);
Logger.LogDebug($"Cached play count for [{track.DisplayString()}]");
}
}
}