More restructuring

src/Nadeko.Bot.Modules.Music/_Common/Resolvers/LocalTrackResolver.cs

@@ -0,0 +1,123 @@
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Text;
+using Nadeko.Common;
+
+namespace NadekoBot.Modules.Music.Resolvers;
+
+public sealed class LocalTrackResolver : ILocalTrackResolver
+{
+    private static readonly HashSet<string> _musicExtensions = new[]
+    {
+        ".MP4", ".MP3", ".FLAC", ".OGG", ".WAV", ".WMA", ".WMV", ".AAC", ".MKV", ".WEBM", ".M4A", ".AA", ".AAX",
+        ".ALAC", ".AIFF", ".MOV", ".FLV", ".OGG", ".M4V"
+    }.ToHashSet();
+
+    public async Task<ITrackInfo?> ResolveByQueryAsync(string query)
+    {
+        if (!File.Exists(query))
+            return null;
+
+        var trackDuration = await Ffprobe.GetTrackDurationAsync(query);
+        return new SimpleTrackInfo(Path.GetFileNameWithoutExtension(query),
+            $"https://google.com?q={Uri.EscapeDataString(Path.GetFileNameWithoutExtension(query))}",
+            "https://cdn.discordapp.com/attachments/155726317222887425/261850914783100928/1482522077_music.png",
+            trackDuration,
+            MusicPlatform.Local,
+            $"\"{Path.GetFullPath(query)}\"");
+    }
+
+    public async IAsyncEnumerable<ITrackInfo> ResolveDirectoryAsync(string dirPath)
+    {
+        DirectoryInfo dir;
+        try
+        {
+            dir = new(dirPath);
+        }
+        catch (Exception ex)
+        {
+            Log.Error(ex, "Specified directory {DirectoryPath} could not be opened", dirPath);
+            yield break;
+        }
+
+        var files = dir.EnumerateFiles()
+                       .Where(x =>
+                       {
+                           if (!x.Attributes.HasFlag(FileAttributes.Hidden | FileAttributes.System)
+                               && _musicExtensions.Contains(x.Extension.ToUpperInvariant()))
+                               return true;
+                           return false;
+                       })
+                       .ToList();
+
+        var firstFile = files.FirstOrDefault()?.FullName;
+        if (firstFile is null)
+            yield break;
+
+        var firstData = await ResolveByQueryAsync(firstFile);
+        if (firstData is not null)
+            yield return firstData;
+
+        var fileChunks = files.Skip(1).Chunk(10);
+        foreach (var chunk in fileChunks)
+        {
+            var part = await chunk.Select(x => ResolveByQueryAsync(x.FullName)).WhenAll();
+
+            // nullable reference types being annoying
+            foreach (var p in part)
+            {
+                if (p is null)
+                    continue;
+
+                yield return p;
+            }
+        }
+    }
+}
+
+public static class Ffprobe
+{
+    public static async Task<TimeSpan> GetTrackDurationAsync(string query)
+    {
+        query = query.Replace("\"", "");
+
+        try
+        {
+            using var p = Process.Start(new ProcessStartInfo
+            {
+                FileName = "ffprobe",
+                Arguments =
+                    $"-v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 -- \"{query}\"",
+                UseShellExecute = false,
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                StandardOutputEncoding = Encoding.UTF8,
+                StandardErrorEncoding = Encoding.UTF8,
+                CreateNoWindow = true
+            });
+
+            if (p is null)
+                return TimeSpan.Zero;
+
+            var data = await p.StandardOutput.ReadToEndAsync();
+            if (double.TryParse(data, out var seconds))
+                return TimeSpan.FromSeconds(seconds);
+
+            var errorData = await p.StandardError.ReadToEndAsync();
+            if (!string.IsNullOrWhiteSpace(errorData))
+                Log.Warning("Ffprobe warning for file {FileName}: {ErrorMessage}", query, errorData);
+
+            return TimeSpan.Zero;
+        }
+        catch (Win32Exception)
+        {
+            Log.Warning("Ffprobe was likely not installed. Local song durations will show as (?)");
+        }
+        catch (Exception ex)
+        {
+            Log.Error(ex, "Unknown exception running ffprobe; {ErrorMessage}", ex.Message);
+        }
+
+        return TimeSpan.Zero;
+    }
+}

src/Nadeko.Bot.Modules.Music/_Common/Resolvers/RadioResolveStrategy.cs

@@ -0,0 +1,106 @@
+#nullable disable
+using System.Text.RegularExpressions;
+
+namespace NadekoBot.Modules.Music.Resolvers;
+
+public class RadioResolver : IRadioResolver
+{
+    private readonly Regex _plsRegex = new(@"File1=(?<url>.*?)\n", RegexOptions.Compiled);
+    private readonly Regex _m3URegex = new(@"(?<url>^[^#].*)", RegexOptions.Compiled | RegexOptions.Multiline);
+    private readonly Regex _asxRegex = new(@"<ref href=""(?<url>.*?)""", RegexOptions.Compiled);
+    private readonly Regex _xspfRegex = new(@"<location>(?<url>.*?)</location>", RegexOptions.Compiled);
+
+    public async Task<ITrackInfo> ResolveByQueryAsync(string query)
+    {
+        if (IsRadioLink(query))
+            query = await HandleStreamContainers(query);
+
+        return new SimpleTrackInfo(query.TrimTo(50),
+            query,
+            "https://cdn.discordapp.com/attachments/155726317222887425/261850925063340032/1482522097_radio.png",
+            TimeSpan.MaxValue,
+            MusicPlatform.Radio,
+            query);
+    }
+
+    public static bool IsRadioLink(string query)
+        => (query.StartsWith("http", StringComparison.InvariantCulture)
+            || query.StartsWith("ww", StringComparison.InvariantCulture))
+           && (query.Contains(".pls") || query.Contains(".m3u") || query.Contains(".asx") || query.Contains(".xspf"));
+
+    private async Task<string> HandleStreamContainers(string query)
+    {
+        string file = null;
+        try
+        {
+            using var http = new HttpClient();
+            file = await http.GetStringAsync(query);
+        }
+        catch
+        {
+            return query;
+        }
+
+        if (query.Contains(".pls"))
+        {
+            try
+            {
+                var m = _plsRegex.Match(file);
+                var res = m.Groups["url"]?.ToString();
+                return res?.Trim();
+            }
+            catch
+            {
+                Log.Warning("Failed reading .pls:\n{PlsFile}", file);
+                return null;
+            }
+        }
+
+        if (query.Contains(".m3u"))
+        {
+            try
+            {
+                var m = _m3URegex.Match(file);
+                var res = m.Groups["url"]?.ToString();
+                return res?.Trim();
+            }
+            catch
+            {
+                Log.Warning("Failed reading .m3u:\n{M3uFile}", file);
+                return null;
+            }
+        }
+
+        if (query.Contains(".asx"))
+        {
+            try
+            {
+                var m = _asxRegex.Match(file);
+                var res = m.Groups["url"]?.ToString();
+                return res?.Trim();
+            }
+            catch
+            {
+                Log.Warning("Failed reading .asx:\n{AsxFile}", file);
+                return null;
+            }
+        }
+
+        if (query.Contains(".xspf"))
+        {
+            try
+            {
+                var m = _xspfRegex.Match(file);
+                var res = m.Groups["url"]?.ToString();
+                return res?.Trim();
+            }
+            catch
+            {
+                Log.Warning("Failed reading .xspf:\n{XspfFile}", file);
+                return null;
+            }
+        }
+
+        return query;
+    }
+}

src/Nadeko.Bot.Modules.Music/_Common/Resolvers/SoundcloudResolver.cs

@@ -0,0 +1,85 @@
+using Newtonsoft.Json.Linq;
+using System.Runtime.CompilerServices;
+using System.Text.RegularExpressions;
+using Nadeko.Common;
+
+namespace NadekoBot.Modules.Music.Resolvers;
+
+public sealed class SoundcloudResolver : ISoundcloudResolver
+{
+    private readonly SoundCloudApiService _sc;
+    private readonly ITrackCacher _trackCacher;
+    private readonly IHttpClientFactory _httpFactory;
+
+    public SoundcloudResolver(SoundCloudApiService sc, ITrackCacher trackCacher, IHttpClientFactory httpFactory)
+    {
+        _sc = sc;
+        _trackCacher = trackCacher;
+        _httpFactory = httpFactory;
+    }
+
+    public bool IsSoundCloudLink(string url)
+        => Regex.IsMatch(url, "(.*)(soundcloud.com|snd.sc)(.*)");
+
+    public async IAsyncEnumerable<ITrackInfo> ResolvePlaylistAsync(string playlist)
+    {
+        playlist = Uri.EscapeDataString(playlist);
+
+        using var http = _httpFactory.CreateClient();
+        var responseString = await http.GetStringAsync($"https://scapi.nadeko.bot/resolve?url={playlist}");
+        var scvids = JObject.Parse(responseString)["tracks"]?.ToObject<SoundCloudVideo[]>();
+        if (scvids is null)
+            yield break;
+
+        foreach (var videosChunk in scvids.Where(x => x.Streamable is true).Chunk(5))
+        {
+            var cachableTracks = videosChunk.Select(VideoModelToCachedData).ToList();
+
+            await cachableTracks.Select(_trackCacher.CacheTrackDataAsync).WhenAll();
+            foreach (var info in cachableTracks.Select(CachableDataToTrackInfo))
+                yield return info;
+        }
+    }
+
+    private ICachableTrackData VideoModelToCachedData(SoundCloudVideo svideo)
+        => new CachableTrackData
+        {
+            Title = svideo.FullName,
+            Url = svideo.TrackLink,
+            Thumbnail = svideo.ArtworkUrl,
+            TotalDurationMs = svideo.Duration,
+            Id = svideo.Id.ToString(),
+            Platform = MusicPlatform.SoundCloud
+        };
+
+    private ITrackInfo CachableDataToTrackInfo(ICachableTrackData trackData)
+        => new SimpleTrackInfo(trackData.Title,
+            trackData.Url,
+            trackData.Thumbnail,
+            trackData.Duration,
+            trackData.Platform,
+            GetStreamUrl(trackData.Id));
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    private string GetStreamUrl(string trackId)
+        => $"https://api.soundcloud.com/tracks/{trackId}/stream?client_id=368b0c85751007cd588d869d3ae61ac0";
+
+    public async Task<ITrackInfo?> ResolveByQueryAsync(string query)
+    {
+        var cached = await _trackCacher.GetCachedDataByQueryAsync(query, MusicPlatform.SoundCloud);
+        if (cached is not null)
+            return CachableDataToTrackInfo(cached);
+
+        var svideo = !IsSoundCloudLink(query)
+            ? await _sc.GetVideoByQueryAsync(query)
+            : await _sc.ResolveVideoAsync(query);
+
+        if (svideo is null)
+            return null;
+
+        var cachableData = VideoModelToCachedData(svideo);
+        await _trackCacher.CacheTrackDataByQueryAsync(query, cachableData);
+
+        return CachableDataToTrackInfo(cachableData);
+    }
+}

src/Nadeko.Bot.Modules.Music/_Common/Resolvers/TrackResolveProvider.cs

@@ -0,0 +1,56 @@
+namespace NadekoBot.Modules.Music;
+
+public sealed class TrackResolveProvider : ITrackResolveProvider
+{
+    private readonly IYoutubeResolver _ytResolver;
+    private readonly ILocalTrackResolver _localResolver;
+    private readonly ISoundcloudResolver _soundcloudResolver;
+    private readonly IRadioResolver _radioResolver;
+
+    public TrackResolveProvider(
+        IYoutubeResolver ytResolver,
+        ILocalTrackResolver localResolver,
+        ISoundcloudResolver soundcloudResolver,
+        IRadioResolver radioResolver)
+    {
+        _ytResolver = ytResolver;
+        _localResolver = localResolver;
+        _soundcloudResolver = soundcloudResolver;
+        _radioResolver = radioResolver;
+    }
+
+    public Task<ITrackInfo?> QuerySongAsync(string query, MusicPlatform? forcePlatform)
+    {
+        switch (forcePlatform)
+        {
+            case MusicPlatform.Radio:
+                return _radioResolver.ResolveByQueryAsync(query);
+            case MusicPlatform.Youtube:
+                return _ytResolver.ResolveByQueryAsync(query);
+            case MusicPlatform.Local:
+                return _localResolver.ResolveByQueryAsync(query);
+            case MusicPlatform.SoundCloud:
+                return _soundcloudResolver.ResolveByQueryAsync(query);
+            case null:
+                var match = _ytResolver.YtVideoIdRegex.Match(query);
+                if (match.Success)
+                    return _ytResolver.ResolveByIdAsync(match.Groups["id"].Value);
+                else if (_soundcloudResolver.IsSoundCloudLink(query))
+                    return _soundcloudResolver.ResolveByQueryAsync(query);
+                else if (Uri.TryCreate(query, UriKind.Absolute, out var uri) && uri.IsFile)
+                    return _localResolver.ResolveByQueryAsync(uri.AbsolutePath);
+                else if (IsRadioLink(query))
+                    return _radioResolver.ResolveByQueryAsync(query);
+                else
+                    return _ytResolver.ResolveByQueryAsync(query, false);
+            default:
+                Log.Error("Unsupported platform: {MusicPlatform}", forcePlatform);
+                return Task.FromResult<ITrackInfo?>(null);
+        }
+    }
+
+    public static bool IsRadioLink(string query)
+        => (query.StartsWith("http", StringComparison.InvariantCulture)
+            || query.StartsWith("ww", StringComparison.InvariantCulture))
+           && (query.Contains(".pls") || query.Contains(".m3u") || query.Contains(".asx") || query.Contains(".xspf"));
+}

src/Nadeko.Bot.Modules.Music/_Common/Resolvers/YtdlYoutubeResolver.cs

@@ -0,0 +1,315 @@
+using System.Globalization;
+using System.Text.RegularExpressions;
+using NadekoBot.Modules.Searches;
+
+namespace NadekoBot.Modules.Music;
+
+public sealed class YtdlYoutubeResolver : IYoutubeResolver
+{
+    private static readonly string[] _durationFormats =
+    {
+        "ss", "m\\:ss", "mm\\:ss", "h\\:mm\\:ss", "hh\\:mm\\:ss", "hhh\\:mm\\:ss"
+    };
+
+    private static readonly Regex _expiryRegex = new(@"(?:[\?\&]expire\=(?<timestamp>\d+))");
+
+
+    private static readonly Regex _simplePlaylistRegex = new(@"&list=(?<id>[\w\-]{12,})", RegexOptions.Compiled);
+
+    public Regex YtVideoIdRegex { get; } =
+        new(@"(?:youtube\.com\/\S*(?:(?:\/e(?:mbed))?\/|watch\?(?:\S*?&?v\=))|youtu\.be\/)(?<id>[a-zA-Z0-9_-]{6,11})",
+            RegexOptions.Compiled);
+
+    private readonly ITrackCacher _trackCacher;
+
+    private readonly YtdlOperation _ytdlPlaylistOperation;
+    private readonly YtdlOperation _ytdlIdOperation;
+    private readonly YtdlOperation _ytdlSearchOperation;
+
+    private readonly IGoogleApiService _google;
+
+    public YtdlYoutubeResolver(ITrackCacher trackCacher, IGoogleApiService google, SearchesConfigService scs)
+    {
+        _trackCacher = trackCacher;
+        _google = google;
+        
+
+        _ytdlPlaylistOperation = new("-4 "
+                                     + "--geo-bypass "
+                                     + "--encoding UTF8 "
+                                     + "-f bestaudio "
+                                     + "-e "
+                                     + "--get-url "
+                                     + "--get-id "
+                                     + "--get-thumbnail "
+                                     + "--get-duration "
+                                     + "--no-check-certificate "
+                                     + "-i "
+                                     + "--yes-playlist "
+                                     + "-- \"{0}\"", scs.Data.YtProvider != YoutubeSearcher.Ytdl);
+
+        _ytdlIdOperation = new("-4 "
+                               + "--geo-bypass "
+                               + "--encoding UTF8 "
+                               + "-f bestaudio "
+                               + "-e "
+                               + "--get-url "
+                               + "--get-id "
+                               + "--get-thumbnail "
+                               + "--get-duration "
+                               + "--no-check-certificate "
+                               + "-- \"{0}\"", scs.Data.YtProvider != YoutubeSearcher.Ytdl);
+
+        _ytdlSearchOperation = new("-4 "
+                                   + "--geo-bypass "
+                                   + "--encoding UTF8 "
+                                   + "-f bestaudio "
+                                   + "-e "
+                                   + "--get-url "
+                                   + "--get-id "
+                                   + "--get-thumbnail "
+                                   + "--get-duration "
+                                   + "--no-check-certificate "
+                                   + "--default-search "
+                                   + "\"ytsearch:\" -- \"{0}\"", scs.Data.YtProvider != YoutubeSearcher.Ytdl);
+    }
+
+    private YtTrackData ResolveYtdlData(string ytdlOutputString)
+    {
+        if (string.IsNullOrWhiteSpace(ytdlOutputString))
+            return default;
+
+        var dataArray = ytdlOutputString.Trim().Split('\n');
+
+        if (dataArray.Length < 5)
+        {
+            Log.Information("Not enough data received: {YtdlData}", ytdlOutputString);
+            return default;
+        }
+
+        if (!TimeSpan.TryParseExact(dataArray[4], _durationFormats, CultureInfo.InvariantCulture, out var time))
+            time = TimeSpan.Zero;
+
+        var thumbnail = Uri.IsWellFormedUriString(dataArray[3], UriKind.Absolute) ? dataArray[3].Trim() : string.Empty;
+
+        return new(dataArray[0], dataArray[1], thumbnail, dataArray[2], time);
+    }
+
+    private ITrackInfo DataToInfo(in YtTrackData trackData)
+        => new RemoteTrackInfo(
+            trackData.Id,
+            trackData.Title,
+            $"https://youtube.com/watch?v={trackData.Id}",
+            trackData.Thumbnail,
+            trackData.Duration,
+            MusicPlatform.Youtube,
+            CreateCacherFactory(trackData.Id));
+
+    private Func<Task<string?>> CreateCacherFactory(string id)
+        => () => _trackCacher.GetOrCreateStreamLink(id,
+            MusicPlatform.Youtube,
+            async () => await ExtractNewStreamUrlAsync(id));
+
+    private static TimeSpan GetExpiry(string streamUrl)
+    {
+        var match = _expiryRegex.Match(streamUrl);
+        if (match.Success && double.TryParse(match.Groups["timestamp"].ToString(), out var timestamp))
+        {
+            var realExpiry = timestamp.ToUnixTimestamp() - DateTime.UtcNow;
+            if (realExpiry > TimeSpan.FromMinutes(60))
+                return realExpiry.Subtract(TimeSpan.FromMinutes(30));
+
+            return realExpiry;
+        }
+
+        return TimeSpan.FromHours(1);
+    }
+
+    private async Task<(string StreamUrl, TimeSpan Expiry)> ExtractNewStreamUrlAsync(string id)
+    {
+        var data = await _ytdlIdOperation.GetDataAsync(id);
+        var trackInfo = ResolveYtdlData(data);
+        if (string.IsNullOrWhiteSpace(trackInfo.StreamUrl))
+            return default;
+
+        return (trackInfo.StreamUrl!, GetExpiry(trackInfo.StreamUrl!));
+    }
+
+    public async Task<ITrackInfo?> ResolveByIdAsync(string id)
+    {
+        id = id.Trim();
+
+        var cachedData = await _trackCacher.GetCachedDataByIdAsync(id, MusicPlatform.Youtube);
+        if (cachedData is null)
+        {
+            Log.Information("Resolving youtube track by Id: {YoutubeId}", id);
+
+            var data = await _ytdlIdOperation.GetDataAsync(id);
+
+            var trackInfo = ResolveYtdlData(data);
+            if (string.IsNullOrWhiteSpace(trackInfo.Title))
+                return default;
+
+            var toReturn = DataToInfo(in trackInfo);
+
+            await Task.WhenAll(_trackCacher.CacheTrackDataAsync(toReturn.ToCachedData(id)),
+                CacheStreamUrlAsync(trackInfo));
+
+            return toReturn;
+        }
+
+        return DataToInfo(new(cachedData.Title, cachedData.Id, cachedData.Thumbnail, null, cachedData.Duration));
+    }
+
+    private Task CacheStreamUrlAsync(YtTrackData trackInfo)
+        => _trackCacher.CacheStreamUrlAsync(trackInfo.Id,
+            MusicPlatform.Youtube,
+            trackInfo.StreamUrl!,
+            GetExpiry(trackInfo.StreamUrl!));
+
+    public async IAsyncEnumerable<ITrackInfo> ResolveTracksByPlaylistIdAsync(string playlistId)
+    {
+        Log.Information("Resolving youtube tracks from playlist: {PlaylistId}", playlistId);
+        var count = 0;
+
+        var ids = await _trackCacher.GetPlaylistTrackIdsAsync(playlistId, MusicPlatform.Youtube);
+        if (ids.Count > 0)
+        {
+            foreach (var id in ids)
+            {
+                var trackInfo = await ResolveByIdAsync(id);
+                if (trackInfo is null)
+                    continue;
+
+                yield return trackInfo;
+            }
+
+            yield break;
+        }
+
+        var data = string.Empty;
+        var trackIds = new List<string>();
+        await foreach (var line in _ytdlPlaylistOperation.EnumerateDataAsync(playlistId))
+        {
+            data += line;
+
+            if (++count == 5)
+            {
+                var trackData = ResolveYtdlData(data);
+                data = string.Empty;
+                count = 0;
+                if (string.IsNullOrWhiteSpace(trackData.Id))
+                    continue;
+
+                var info = DataToInfo(in trackData);
+                await Task.WhenAll(_trackCacher.CacheTrackDataAsync(info.ToCachedData(trackData.Id)),
+                    CacheStreamUrlAsync(trackData));
+
+                trackIds.Add(trackData.Id);
+                yield return info;
+            }
+            else
+                data += Environment.NewLine;
+        }
+
+        await _trackCacher.CachePlaylistTrackIdsAsync(playlistId, MusicPlatform.Youtube, trackIds);
+    }
+
+    public async IAsyncEnumerable<ITrackInfo> ResolveTracksFromPlaylistAsync(string query)
+    {
+        string? playlistId;
+        // try to match playlist id inside the query, if a playlist url has been queried
+        var match = _simplePlaylistRegex.Match(query);
+        if (match.Success)
+        {
+            // if it's a success, just return from that playlist using the id
+            playlistId = match.Groups["id"].ToString();
+            await foreach (var track in ResolveTracksByPlaylistIdAsync(playlistId))
+                yield return track;
+
+            yield break;
+        }
+
+        // if a query is a search term, try the cache
+        playlistId = await _trackCacher.GetPlaylistIdByQueryAsync(query, MusicPlatform.Youtube);
+        if (playlistId is null)
+        {
+            // if it's not in the cache
+            // find playlist id by keyword using google api
+            try
+            {
+                var playlistIds = await _google.GetPlaylistIdsByKeywordsAsync(query);
+                playlistId = playlistIds.FirstOrDefault();
+            }
+            catch (Exception ex)
+            {
+                Log.Warning(ex, "Error Getting playlist id via GoogleApi");
+            }
+
+            // if query is not a playlist url
+            // and query result is not in the cache
+            // and api returns no values
+            // it means invalid input has been used,
+            // or google api key is not provided
+            if (playlistId is null)
+                yield break;
+        }
+
+        // cache the query -> playlist id for fast future lookup
+        await _trackCacher.CachePlaylistIdByQueryAsync(query, MusicPlatform.Youtube, playlistId);
+        await foreach (var track in ResolveTracksByPlaylistIdAsync(playlistId))
+            yield return track;
+    }
+
+    public Task<ITrackInfo?> ResolveByQueryAsync(string query)
+        => ResolveByQueryAsync(query, true);
+
+    public async Task<ITrackInfo?> ResolveByQueryAsync(string query, bool tryResolving)
+    {
+        if (tryResolving)
+        {
+            var match = YtVideoIdRegex.Match(query);
+            if (match.Success)
+                return await ResolveByIdAsync(match.Groups["id"].Value);
+        }
+
+        Log.Information("Resolving youtube song by search term: {YoutubeQuery}", query);
+
+        var cachedData = await _trackCacher.GetCachedDataByQueryAsync(query, MusicPlatform.Youtube);
+        if (cachedData is null || string.IsNullOrWhiteSpace(cachedData.Title))
+        {
+            var stringData = await _ytdlSearchOperation.GetDataAsync(query);
+            var trackData = ResolveYtdlData(stringData);
+
+            var trackInfo = DataToInfo(trackData);
+            await Task.WhenAll(_trackCacher.CacheTrackDataByQueryAsync(query, trackInfo.ToCachedData(trackData.Id)),
+                CacheStreamUrlAsync(trackData));
+            return trackInfo;
+        }
+
+        return DataToInfo(new(cachedData.Title, cachedData.Id, cachedData.Thumbnail, null, cachedData.Duration));
+    }
+
+    private readonly struct YtTrackData
+    {
+        public readonly string Title;
+        public readonly string Id;
+        public readonly string Thumbnail;
+        public readonly string? StreamUrl;
+        public readonly TimeSpan Duration;
+
+        public YtTrackData(
+            string title,
+            string id,
+            string thumbnail,
+            string? streamUrl,
+            TimeSpan duration)
+        {
+            Title = title.Trim();
+            Id = id.Trim();
+            Thumbnail = thumbnail;
+            StreamUrl = streamUrl;
+            Duration = duration;
+        }
+    }
+}