2021-11-10 01:46:30 +00:00
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using System;
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using System.Text.Json;
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using System.Threading.Tasks;
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using SpotifyAPI.Web;
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using StackExchange.Redis;
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namespace Selector.Cache
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{
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public class AudioFeaturePuller
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{
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private readonly IRefreshTokenFactoryProvider SpotifyFactory;
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private readonly IDatabaseAsync Cache;
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public AudioFeaturePuller(
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IRefreshTokenFactoryProvider spotifyFactory,
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2021-12-04 12:49:09 +00:00
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IDatabaseAsync cache = null
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2021-11-10 01:46:30 +00:00
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)
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{
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SpotifyFactory = spotifyFactory;
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Cache = cache;
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}
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2021-11-10 23:54:28 +00:00
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public async Task<TrackAudioFeatures> Get(string refreshToken, string trackId)
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2021-11-10 01:46:30 +00:00
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{
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2021-11-10 23:54:28 +00:00
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if(string.IsNullOrWhiteSpace(trackId)) throw new ArgumentNullException("No track Id provided");
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2021-12-04 12:49:09 +00:00
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var track = await Cache?.StringGetAsync(Key.AudioFeature(trackId));
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if (Cache is null || track == RedisValue.Null)
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2021-11-10 01:46:30 +00:00
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{
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2021-11-10 23:54:28 +00:00
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if(!string.IsNullOrWhiteSpace(refreshToken))
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{
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var factory = await SpotifyFactory.GetFactory(refreshToken);
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var spotifyClient = new SpotifyClient(await factory.GetConfig());
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// TODO: Error checking
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return await spotifyClient.Tracks.GetAudioFeatures(trackId);
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}
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else
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{
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return null;
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}
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2021-11-10 01:46:30 +00:00
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}
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else
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{
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var deserialised = JsonSerializer.Deserialize<TrackAudioFeatures>(track);
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return deserialised;
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}
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}
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}
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}
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