mirror of
https://github.com/sphildreth/roadie
synced 2024-11-26 14:10:21 +00:00
644 lines
No EOL
33 KiB
C#
644 lines
No EOL
33 KiB
C#
using Mapster;
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using Microsoft.AspNetCore.Http;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Logging;
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using Newtonsoft.Json;
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using Roadie.Library;
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using Roadie.Library.Caching;
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using Roadie.Library.Configuration;
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using Roadie.Library.Encoding;
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using Roadie.Library.Enums;
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using Roadie.Library.Extensions;
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using Roadie.Library.Models;
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using Roadie.Library.Models.Pagination;
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using Roadie.Library.Models.Releases;
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using Roadie.Library.Models.Users;
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using Roadie.Library.Utility;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Linq.Dynamic.Core;
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using System.Threading.Tasks;
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using data = Roadie.Library.Data;
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namespace Roadie.Api.Services
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{
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public class TrackService : ServiceBase, ITrackService
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{
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private IBookmarkService BookmarkService { get; } = null;
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public TrackService(IRoadieSettings configuration,
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IHttpEncoder httpEncoder,
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IHttpContext httpContext,
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data.IRoadieDbContext dbContext,
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ICacheManager cacheManager,
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ILogger<TrackService> logger,
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IBookmarkService bookmarkService)
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: base(configuration, httpEncoder, dbContext, cacheManager, logger, httpContext)
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{
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this.BookmarkService = bookmarkService;
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}
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public async Task<OperationResult<Track>> ById(User roadieUser, Guid id, IEnumerable<string> includes)
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{
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var sw = Stopwatch.StartNew();
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sw.Start();
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var cacheKey = string.Format("urn:track_by_id_operation:{0}:{1}", id, includes == null ? "0" : string.Join("|", includes));
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var result = await this.CacheManager.GetAsync<OperationResult<Track>>(cacheKey, async () =>
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{
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return await this.TrackByIdAction(id, includes);
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}, data.Track.CacheRegionUrn(id));
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if (result?.Data != null && roadieUser != null)
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{
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var track = this.GetTrack(id);
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var userBookmarkResult = await this.BookmarkService.List(roadieUser, new PagedRequest(), false, BookmarkType.Track);
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if (userBookmarkResult.IsSuccess)
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{
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result.Data.UserBookmarked = userBookmarkResult?.Rows?.FirstOrDefault(x => x.Bookmark.Value == track.RoadieId.ToString()) != null;
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}
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var userTrack = this.DbContext.UserTracks.FirstOrDefault(x => x.TrackId == track.Id && x.UserId == roadieUser.Id);
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if (userTrack != null)
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{
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result.Data.UserRating = new UserTrack
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{
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Rating = userTrack.Rating,
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IsDisliked = userTrack.IsDisliked ?? false,
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IsFavorite = userTrack.IsFavorite ?? false,
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LastPlayed = userTrack.LastPlayed,
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PlayedCount = userTrack.PlayedCount
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};
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}
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}
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sw.Stop();
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return new OperationResult<Track>(result.Messages)
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{
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Data = result?.Data,
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Errors = result?.Errors,
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IsNotFoundResult = result?.IsNotFoundResult ?? false,
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IsSuccess = result?.IsSuccess ?? false,
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OperationTime = sw.ElapsedMilliseconds
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};
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}
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private Task<OperationResult<Track>> TrackByIdAction(Guid id, IEnumerable<string> includes)
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{
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var sw = Stopwatch.StartNew();
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sw.Start();
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var track = this.GetTrack(id);
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if (track == null)
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{
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return Task.FromResult(new OperationResult<Track>(true, string.Format("Track Not Found [{0}]", id)));
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}
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var result = track.Adapt<Track>();
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result.PlayUrl = $"{ this.HttpContext.BaseUrl }/play/track/{track.RoadieId}.mp3";
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result.IsLocked = (track.IsLocked ?? false) ||
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(track.ReleaseMedia.IsLocked ?? false) ||
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(track.ReleaseMedia.Release.IsLocked ?? false ) ||
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(track.ReleaseMedia.Release.Artist.IsLocked ?? false);
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result.Thumbnail = base.MakeTrackThumbnailImage(id);
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result.ReleaseMediaId = track.ReleaseMedia.RoadieId.ToString();
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result.Artist = new DataToken
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{
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Text = track.ReleaseMedia.Release.Artist.Name,
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Value = track.ReleaseMedia.Release.Artist.RoadieId.ToString()
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};
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result.ArtistThumbnail = this.MakeArtistThumbnailImage(track.ReleaseMedia.Release.Artist.RoadieId);
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result.Release = new DataToken
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{
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Text = track.ReleaseMedia.Release.Title,
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Value = track.ReleaseMedia.Release.RoadieId.ToString()
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};
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result.ReleaseThumbnail = this.MakeReleaseThumbnailImage(track.ReleaseMedia.Release.RoadieId);
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if(track.ArtistId.HasValue)
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{
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var trackArtist = this.DbContext.Artists.FirstOrDefault(x => x.Id == track.ArtistId);
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if(trackArtist == null)
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{
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this.Logger.LogWarning($"Unable to find Track Artist [{ track.ArtistId }");
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}
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else
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{
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result.TrackArtist = new DataToken
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{
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Text = trackArtist.Name,
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Value = trackArtist.RoadieId.ToString()
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};
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result.TrackArtistThumbnail = this.MakeArtistThumbnailImage(trackArtist.RoadieId);
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}
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}
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if (includes != null && includes.Any())
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{
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if (includes.Contains("stats"))
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{
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var userTracks = (from t in this.DbContext.Tracks
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join ut in this.DbContext.UserTracks on t.Id equals ut.TrackId into tt
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from ut in tt.DefaultIfEmpty()
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where t.Id == track.Id
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select ut).ToArray();
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if (userTracks.Any())
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{
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result.Statistics = new Library.Models.Statistics.TrackStatistics
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{
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DislikedCount = userTracks.Count(x => x.IsDisliked ?? false),
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FavoriteCount = userTracks.Count(x => x.IsFavorite ?? false),
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PlayedCount = userTracks.Sum(x => x.PlayedCount),
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FileSizeFormatted = ((long?)track.FileSize).ToFileSize(),
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Time = new TimeInfo((decimal)track.Duration).ToFullFormattedString()
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};
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}
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}
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}
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sw.Stop();
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return Task.FromResult(new OperationResult<Track>
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{
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Data = result,
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IsSuccess = result != null,
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OperationTime = sw.ElapsedMilliseconds
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});
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}
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public static long DetermineByteEndFromHeaders(IHeaderDictionary headers, long fileLength)
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{
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var defaultFileLength = fileLength - 1;
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if (headers == null || !headers.Any(x => x.Key == "Range"))
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{
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return defaultFileLength;
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}
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long? result = null;
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var rangeHeader = headers["Range"];
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string rangeEnd = null;
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var rangeBegin = rangeHeader.FirstOrDefault();
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if (!string.IsNullOrEmpty(rangeBegin))
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{
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//bytes=0-
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rangeBegin = rangeBegin.Replace("bytes=", "");
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var parts = rangeBegin.Split('-');
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rangeBegin = parts[0];
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if (parts.Length > 1)
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{
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rangeEnd = parts[1];
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}
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if (!string.IsNullOrEmpty(rangeEnd))
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{
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result = long.TryParse(rangeEnd, out long outValue) ? (int?)outValue : null;
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}
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}
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return result ?? defaultFileLength;
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}
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public static long DetermineByteStartFromHeaders(IHeaderDictionary headers)
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{
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if (headers == null || !headers.Any(x => x.Key == "Range"))
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{
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return 0;
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}
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long result = 0;
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var rangeHeader = headers["Range"];
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var rangeBegin = rangeHeader.FirstOrDefault();
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if (!string.IsNullOrEmpty(rangeBegin))
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{
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//bytes=0-
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rangeBegin = rangeBegin.Replace("bytes=", "");
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var parts = rangeBegin.Split('-');
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rangeBegin = parts[0];
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if (!string.IsNullOrEmpty(rangeBegin))
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{
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long.TryParse(rangeBegin, out result);
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}
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}
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return result;
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}
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public Task<Library.Models.Pagination.PagedResult<TrackList>> List(PagedRequest request, User roadieUser, bool? doRandomize = false, Guid? releaseId = null)
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{
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try
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{
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var sw = new Stopwatch();
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sw.Start();
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int? rowCount = null;
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if(!string.IsNullOrEmpty(request.Sort))
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{
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request.Sort = request.Sort.Replace("Release.Text", "Release.Release.Text");
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}
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IQueryable<int> favoriteTrackIds = (new int[0]).AsQueryable();
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if (request.FilterFavoriteOnly)
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{
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favoriteTrackIds = (from t in this.DbContext.Tracks
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join ut in this.DbContext.UserTracks on t.Id equals ut.TrackId
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where ut.IsFavorite ?? false
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select t.Id
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);
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}
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Dictionary<int, int> playListTrackPositions = new Dictionary<int, int>();
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int[] playlistTrackIds = new int[0];
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if (request.FilterToPlaylistId.HasValue)
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{
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var playlistTrackInfos = (from plt in this.DbContext.PlaylistTracks
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join p in this.DbContext.Playlists on plt.PlayListId equals p.Id
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join t in this.DbContext.Tracks on plt.TrackId equals t.Id
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where p.RoadieId == request.FilterToPlaylistId.Value
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orderby plt.ListNumber
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select new
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{
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plt.ListNumber,
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t.Id
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});
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rowCount = playlistTrackInfos.Count();
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playListTrackPositions = playlistTrackInfos.Skip(request.SkipValue).Take(request.LimitValue).ToDictionary(x => x.Id, x => x.ListNumber);
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playlistTrackIds = playListTrackPositions.Select(x => x.Key).ToArray();
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request.Sort = "TrackNumber";
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request.Order = "ASC";
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request.Page = 1; // Set back to first or it skips already paged tracks for playlist
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request.SkipValue = 0;
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}
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int[] topTrackids = new int[0];
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if (request.FilterTopPlayedOnly)
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{
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// Get request number of top played songs for artist
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topTrackids = (from t in this.DbContext.Tracks
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join ut in this.DbContext.UserTracks on t.Id equals ut.TrackId
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join rm in this.DbContext.ReleaseMedias on t.ReleaseMediaId equals rm.Id
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join r in this.DbContext.Releases on rm.ReleaseId equals r.Id
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join a in this.DbContext.Artists on r.ArtistId equals a.Id
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where a.RoadieId == request.FilterToArtistId
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orderby ut.PlayedCount descending
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select t.Id
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).Skip(request.SkipValue).Take(request.LimitValue).ToArray();
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}
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int[] randomTrackIds = null;
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if (doRandomize ?? false)
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{
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var randomLimit = roadieUser?.RandomReleaseLimit ?? 50;
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randomLimit = request.LimitValue > randomLimit ? randomLimit : request.LimitValue;
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var sql = "SELECT t.* FROM `track` t WHERE t.Hash IS NOT NULL ORDER BY RAND() LIMIT {0}";
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randomTrackIds = this.DbContext.Tracks.FromSql(sql, randomLimit).Select(x => x.Id).ToArray();
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rowCount = this.DbContext.Tracks.Where(x => x.Hash != null).Count();
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}
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Guid?[] filterToTrackIds = null;
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if (request.FilterToTrackId.HasValue || request.FilterToTrackIds != null)
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{
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var f = new List<Guid?>();
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if (request.FilterToTrackId.HasValue)
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{
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f.Add(request.FilterToTrackId);
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}
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if (request.FilterToTrackIds != null)
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{
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foreach (var ft in request.FilterToTrackIds)
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{
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if (!f.Contains(ft))
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{
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f.Add(ft);
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}
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}
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}
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filterToTrackIds = f.ToArray();
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}
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// Did this for performance against the Track table, with just * selcts the table scans are too much of a performance hit.
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var resultQuery = (from t in this.DbContext.Tracks
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join rm in this.DbContext.ReleaseMedias on t.ReleaseMediaId equals rm.Id
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join r in this.DbContext.Releases on rm.ReleaseId equals r.Id
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join releaseArtist in this.DbContext.Artists on r.ArtistId equals releaseArtist.Id
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join trackArtist in this.DbContext.Artists on t.ArtistId equals trackArtist.Id into tas
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from trackArtist in tas.DefaultIfEmpty()
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where (t.Hash != null)
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where (releaseId == null || (releaseId != null && r.RoadieId == releaseId))
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where (filterToTrackIds == null || filterToTrackIds.Contains(t.RoadieId))
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where (request.FilterMinimumRating == null || t.Rating >= request.FilterMinimumRating.Value)
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where (request.FilterValue == "" || (t.Title.Contains(request.FilterValue) || t.AlternateNames.Contains(request.FilterValue)))
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where (!request.FilterFavoriteOnly || favoriteTrackIds.Contains(t.Id))
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where (request.FilterToPlaylistId == null || playlistTrackIds.Contains(t.Id))
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where (!request.FilterTopPlayedOnly || topTrackids.Contains(t.Id))
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where (randomTrackIds == null || randomTrackIds.Contains(t.Id))
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where (request.FilterToArtistId == null || request.FilterToArtistId != null && r.Artist.RoadieId == request.FilterToArtistId)
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select new
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{
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ti = new
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{
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t.Id,
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t.RoadieId,
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t.CreatedDate,
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t.LastUpdated,
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t.LastPlayed,
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t.Duration,
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t.FileSize,
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t.PlayedCount,
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t.Rating,
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t.Tags,
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t.TrackNumber,
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t.Title
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},
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rmi = new
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{
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rm.MediaNumber
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},
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rl = new ReleaseList
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{
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DatabaseId = r.Id,
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Id = r.RoadieId,
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Artist = new DataToken
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{
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Value = releaseArtist.RoadieId.ToString(),
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Text = releaseArtist.Name
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},
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Release = new DataToken
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{
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Text = r.Title,
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Value = r.RoadieId.ToString()
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},
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ArtistThumbnail = this.MakeArtistThumbnailImage(releaseArtist.RoadieId),
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CreatedDate = r.CreatedDate,
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Duration = r.Duration,
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LastPlayed = r.LastPlayed,
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LastUpdated = r.LastUpdated,
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LibraryStatus = r.LibraryStatus,
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MediaCount = r.MediaCount,
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Rating = r.Rating,
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ReleaseDateDateTime = r.ReleaseDate,
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ReleasePlayUrl = $"{ this.HttpContext.BaseUrl }/play/release/{ r.RoadieId}",
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Status = r.Status,
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Thumbnail = this.MakeReleaseThumbnailImage(r.RoadieId),
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TrackCount = r.TrackCount,
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TrackPlayedCount = r.PlayedCount
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},
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ta = trackArtist == null ? null : new ArtistList
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{
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DatabaseId = trackArtist.Id,
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Id = trackArtist.RoadieId,
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Artist = new DataToken { Text = trackArtist.Name, Value = trackArtist.RoadieId.ToString() },
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Rating = trackArtist.Rating,
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CreatedDate = trackArtist.CreatedDate,
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LastUpdated = trackArtist.LastUpdated,
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LastPlayed = trackArtist.LastPlayed,
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PlayedCount = trackArtist.PlayedCount,
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ReleaseCount = trackArtist.ReleaseCount,
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TrackCount = trackArtist.TrackCount,
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SortName = trackArtist.SortName,
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Thumbnail = this.MakeArtistThumbnailImage(trackArtist.RoadieId)
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},
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ra = new ArtistList
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{
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DatabaseId = releaseArtist.Id,
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Id = releaseArtist.RoadieId,
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Artist = new DataToken { Text = releaseArtist.Name, Value = releaseArtist.RoadieId.ToString() },
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Rating = releaseArtist.Rating,
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CreatedDate = releaseArtist.CreatedDate,
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LastUpdated = releaseArtist.LastUpdated,
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LastPlayed = releaseArtist.LastPlayed,
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PlayedCount = releaseArtist.PlayedCount,
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ReleaseCount = releaseArtist.ReleaseCount,
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TrackCount = releaseArtist.TrackCount,
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SortName = releaseArtist.SortName,
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Thumbnail = this.MakeArtistThumbnailImage(releaseArtist.RoadieId)
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}
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});
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if (!string.IsNullOrEmpty(request.FilterValue))
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{
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if (request.FilterValue.StartsWith("#"))
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{
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// Find any releases by tags
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var tagValue = request.FilterValue.Replace("#", "");
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resultQuery = resultQuery.Where(x => x.ti.Tags != null && x.ti.Tags.Contains(tagValue));
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}
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}
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var result = resultQuery.Select(x =>
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new TrackList
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{
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DatabaseId = x.ti.Id,
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Id = x.ti.RoadieId,
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Track = new DataToken
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{
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Text = x.ti.Title,
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Value = x.ti.RoadieId.ToString()
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},
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Release = x.rl,
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LastPlayed = x.ti.LastPlayed,
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Artist = x.ra,
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TrackArtist = x.ta,
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TrackNumber = playListTrackPositions.ContainsKey(x.ti.Id) ? playListTrackPositions[x.ti.Id] : x.ti.TrackNumber,
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MediaNumber = x.rmi.MediaNumber,
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CreatedDate = x.ti.CreatedDate,
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LastUpdated = x.ti.LastUpdated,
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Duration = x.ti.Duration,
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FileSize = x.ti.FileSize,
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ReleaseDate = x.rl.ReleaseDateDateTime,
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PlayedCount = x.ti.PlayedCount,
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Rating = x.ti.Rating,
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Title = x.ti.Title,
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TrackPlayUrl = $"{ this.HttpContext.BaseUrl }/play/track/{ x.ti.RoadieId }.mp3",
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Thumbnail = this.MakeTrackThumbnailImage(x.ti.RoadieId)
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});
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string sortBy = null;
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rowCount = rowCount ?? result.Count();
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TrackList[] rows = null;
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if (request.Action == User.ActionKeyUserRated)
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{
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sortBy = string.IsNullOrEmpty(request.Sort) ? request.OrderValue(new Dictionary<string, string> { { "UserTrack.Rating", "DESC" }, { "MediaNumber", "ASC" }, { "TrackNumber", "ASC" } }) : request.OrderValue(null);
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}
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else
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{
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sortBy = string.IsNullOrEmpty(request.Sort) ? request.OrderValue(new Dictionary<string, string> { { "Release.Release.Text", "ASC" }, { "MediaNumber", "ASC" }, { "TrackNumber", "ASC" } }) : request.OrderValue(null);
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}
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rows = result.OrderBy(sortBy).Skip(request.SkipValue).Take(request.LimitValue).ToArray();
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if (rows.Any() && roadieUser != null)
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{
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var rowIds = rows.Select(x => x.DatabaseId).ToArray();
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var userTrackRatings = (from ut in this.DbContext.UserTracks
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where ut.UserId == roadieUser.Id
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where rowIds.Contains(ut.TrackId)
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select ut).ToArray();
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foreach (var userTrackRating in userTrackRatings)
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{
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var row = rows.FirstOrDefault(x => x.DatabaseId == userTrackRating.TrackId);
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if (row != null)
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{
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row.UserRating = new UserTrack
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{
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IsDisliked = userTrackRating.IsDisliked ?? false,
|
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IsFavorite = userTrackRating.IsFavorite ?? false,
|
|
Rating = userTrackRating.Rating,
|
|
LastPlayed = userTrackRating.LastPlayed,
|
|
PlayedCount = userTrackRating.PlayedCount
|
|
};
|
|
}
|
|
}
|
|
|
|
var releaseIds = rows.Select(x => x.Release.DatabaseId).Distinct().ToArray();
|
|
var userReleaseRatings = (from ur in this.DbContext.UserReleases
|
|
where releaseIds.Contains(ur.ReleaseId)
|
|
select ur).ToArray();
|
|
|
|
foreach(var userReleaseRating in userReleaseRatings)
|
|
{
|
|
foreach(var row in rows.Where(x => x.Release.DatabaseId == userReleaseRating.ReleaseId))
|
|
{
|
|
row.Release.UserRating = userReleaseRating.Adapt<UserRelease>();
|
|
}
|
|
}
|
|
|
|
var artistIds = rows.Select(x => x.Artist.DatabaseId).ToArray();
|
|
if (artistIds != null && artistIds.Any())
|
|
{
|
|
var userArtistRatings = (from ua in this.DbContext.UserArtists
|
|
where ua.UserId == roadieUser.Id
|
|
where artistIds.Contains(ua.ArtistId)
|
|
select ua).ToArray();
|
|
foreach (var userArtistRating in userArtistRatings)
|
|
{
|
|
foreach (var artistTrack in rows.Where(x => x.Artist.DatabaseId == userArtistRating.ArtistId))
|
|
{
|
|
artistTrack.Artist.UserRating = userArtistRating.Adapt<UserArtist>();
|
|
}
|
|
}
|
|
}
|
|
|
|
var trackArtistIds = rows.Where(x => x.TrackArtist != null).Select(x => x.TrackArtist.DatabaseId).ToArray();
|
|
if (trackArtistIds != null && trackArtistIds.Any())
|
|
{
|
|
var userTrackArtistRatings = (from ua in this.DbContext.UserArtists
|
|
where ua.UserId == roadieUser.Id
|
|
where trackArtistIds.Contains(ua.ArtistId)
|
|
select ua).ToArray();
|
|
if (userTrackArtistRatings != null && userTrackArtistRatings.Any())
|
|
{
|
|
foreach (var userTrackArtistRating in userTrackArtistRatings)
|
|
{
|
|
foreach (var artistTrack in rows.Where(x => x.TrackArtist != null && x.TrackArtist.DatabaseId == userTrackArtistRating.ArtistId))
|
|
{
|
|
artistTrack.Artist.UserRating = userTrackArtistRating.Adapt<UserArtist>();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if (rows.Any())
|
|
{
|
|
foreach (var row in rows)
|
|
{
|
|
row.PlayedCount = (from ut in this.DbContext.UserTracks
|
|
join tr in this.DbContext.Tracks on ut.TrackId equals tr.Id
|
|
where ut.TrackId == row.DatabaseId
|
|
select ut.PlayedCount).Sum() ?? 0;
|
|
|
|
row.FavoriteCount = (from ut in this.DbContext.UserTracks
|
|
join tr in this.DbContext.Tracks on ut.TrackId equals tr.Id
|
|
where ut.TrackId == row.DatabaseId
|
|
where ut.IsFavorite ?? false
|
|
select ut.Id).Count();
|
|
}
|
|
}
|
|
|
|
sw.Stop();
|
|
return Task.FromResult(new Library.Models.Pagination.PagedResult<TrackList>
|
|
{
|
|
TotalCount = rowCount ?? 0,
|
|
CurrentPage = request.PageValue,
|
|
TotalPages = (int)Math.Ceiling((double)rowCount / request.LimitValue),
|
|
OperationTime = sw.ElapsedMilliseconds,
|
|
Rows = rows
|
|
});
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
this.Logger.LogError(ex, "Error In List, Request [{0}], User [{1}]", JsonConvert.SerializeObject(request), roadieUser);
|
|
return Task.FromResult(new Library.Models.Pagination.PagedResult<TrackList>
|
|
{
|
|
Message = "An Error has occured"
|
|
});
|
|
}
|
|
|
|
}
|
|
|
|
public async Task<OperationResult<TrackStreamInfo>> TrackStreamInfo(Guid trackId, long beginBytes, long endBytes)
|
|
{
|
|
var track = this.GetTrack(trackId);
|
|
if (track == null)
|
|
{
|
|
return new OperationResult<TrackStreamInfo>($"TrackStreamInfo: Unable To Find Track [{ trackId }]");
|
|
}
|
|
if (!track.IsValid)
|
|
{
|
|
return new OperationResult<TrackStreamInfo>($"TrackStreamInfo: Invalid Track. Track Id [{trackId}], FilePath [{track.FilePath}], Filename [{track.FileName}]");
|
|
}
|
|
string trackPath = null;
|
|
try
|
|
{
|
|
trackPath = track.PathToTrack(this.Configuration, this.Configuration.LibraryFolder);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
return new OperationResult<TrackStreamInfo>(ex);
|
|
}
|
|
var trackFileInfo = new FileInfo(trackPath);
|
|
if (!trackFileInfo.Exists)
|
|
{
|
|
track.UpdateTrackMissingFile();
|
|
await this.DbContext.SaveChangesAsync();
|
|
return new OperationResult<TrackStreamInfo>($"TrackStreamInfo: TrackId [{trackId}] Unable to Find Track [{trackFileInfo.FullName}]");
|
|
}
|
|
var contentDurationTimeSpan = TimeSpan.FromMilliseconds((double)(track.Duration ?? 0));
|
|
var info = new TrackStreamInfo
|
|
{
|
|
FileName = this.HttpEncoder.UrlEncode(track.FileName).ToContentDispositionFriendly(),
|
|
ContentDisposition = $"attachment; filename=\"{ this.HttpEncoder.UrlEncode(track.FileName).ToContentDispositionFriendly() }\"",
|
|
ContentDuration = contentDurationTimeSpan.TotalSeconds.ToString(),
|
|
};
|
|
var cacheTimeout = 86400; // 24 hours
|
|
var contentLength = (endBytes - beginBytes) + 1;
|
|
info.Track = new DataToken
|
|
{
|
|
Text = track.Title,
|
|
Value = track.RoadieId.ToString()
|
|
};
|
|
info.BeginBytes = beginBytes;
|
|
info.EndBytes = endBytes;
|
|
info.ContentRange = $"bytes {beginBytes}-{endBytes}/{contentLength}";
|
|
info.ContentLength = contentLength.ToString();
|
|
info.IsFullRequest = beginBytes == 0 && endBytes == (trackFileInfo.Length - 1);
|
|
info.IsEndRangeRequest = beginBytes > 0 && endBytes != (trackFileInfo.Length - 1);
|
|
info.LastModified = (track.LastUpdated ?? track.CreatedDate).ToString("R");
|
|
info.Etag = track.Etag;
|
|
info.CacheControl = $"public, max-age={ cacheTimeout.ToString() } ";
|
|
info.Expires = DateTime.UtcNow.AddMinutes(cacheTimeout).ToString("R");
|
|
int bytesToRead = (int)(endBytes - beginBytes) + 1;
|
|
byte[] trackBytes = new byte[bytesToRead];
|
|
using (var fs = trackFileInfo.OpenRead())
|
|
{
|
|
try
|
|
{
|
|
fs.Seek(beginBytes, SeekOrigin.Begin);
|
|
var r = fs.Read(trackBytes, 0, bytesToRead);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
return new OperationResult<TrackStreamInfo>(ex);
|
|
}
|
|
}
|
|
info.Bytes = trackBytes;
|
|
return new OperationResult<TrackStreamInfo>
|
|
{
|
|
IsSuccess = true,
|
|
Data = info
|
|
};
|
|
}
|
|
}
|
|
} |