roadie/RoadieApi/Services/TrackService.cs
2018-11-18 08:42:02 -06:00

433 lines
No EOL
20 KiB
C#

using Mapster;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Roadie.Library;
using Roadie.Library.Caching;
using Roadie.Library.Configuration;
using Roadie.Library.Encoding;
using Roadie.Library.Extensions;
using Roadie.Library.Models;
using Roadie.Library.Models.Pagination;
using Roadie.Library.Models.Users;
using Roadie.Library.Utility;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Linq.Dynamic.Core;
using System.Threading.Tasks;
using data = Roadie.Library.Data;
namespace Roadie.Api.Services
{
public class TrackService : ServiceBase, ITrackService
{
public TrackService(IRoadieSettings configuration,
IHttpEncoder httpEncoder,
IHttpContext httpContext,
data.IRoadieDbContext dbContext,
ICacheManager cacheManager,
ILogger<TrackService> logger)
: base(configuration, httpEncoder, dbContext, cacheManager, logger, httpContext)
{
}
public async Task<OperationResult<Track>> ById(User roadieUser, Guid id, IEnumerable<string> includes)
{
var sw = Stopwatch.StartNew();
sw.Start();
var cacheKey = string.Format("urn:track_by_id_operation:{0}:{1}", id, includes == null ? "0" : string.Join("|", includes));
var result = await this.CacheManager.GetAsync<OperationResult<Track>>(cacheKey, async () =>
{
return await this.TrackByIdAction(id, includes);
}, data.Track.CacheRegionUrn(id));
if (result?.Data != null && roadieUser != null)
{
//var artist = this.GetArtist(id);
//result.Data.UserBookmark = this.GetUserBookmarks(roadieUser).FirstOrDefault(x => x.Type == BookmarkType.Artist && x.Bookmark.Value == artist.RoadieId.ToString());
//var userArtist = this.DbContext.UserArtists.FirstOrDefault(x => x.ArtistId == artist.Id && x.UserId == roadieUser.Id);
//if (userArtist != null)
//{
// result.Data.UserRating = new UserArtist
// {
// IsDisliked = userArtist.IsDisliked ?? false,
// IsFavorite = userArtist.IsFavorite ?? false,
// Rating = userArtist.Rating
// };
//}
//if (this.RoadieUser != null)
//{
// var userTrack = context.usertracks.FirstOrDefault(x => x.trackId == trackInfo.t.id && x.userId == this.RoadieUser.id);
// if (userTrack != null)
// {
// result.UserTrack = Map.ObjectToObject<dto.UserTrack>(userTrack);
// result.UserTrack.userId = this.RoadieUser.roadieId;
// result.UserTrack.trackId = result.roadieId;
// result.UserTrack.createdDateTime = userTrack.createdDate;
// result.UserTrack.lastUpdatedDateTime = userTrack.lastUpdated;
// }
//}
}
sw.Stop();
return new OperationResult<Track>(result.Messages)
{
Data = result?.Data,
Errors = result?.Errors,
IsNotFoundResult = result?.IsNotFoundResult ?? false,
IsSuccess = result?.IsSuccess ?? false,
OperationTime = sw.ElapsedMilliseconds
};
}
private async Task<OperationResult<Track>> TrackByIdAction(Guid id, IEnumerable<string> includes)
{
var sw = Stopwatch.StartNew();
sw.Start();
var track = this.GetTrack(id);
if (track == null)
{
return new OperationResult<Track>(true, string.Format("Track Not Found [{0}]", id));
}
var result = track.Adapt<Track>();
result.PlayUrl = $"{ this.HttpContext.BaseUrl }/play/track/{track.RoadieId}.mp3";
result.IsLocked = (track.IsLocked ?? false) ||
(track.ReleaseMedia.IsLocked ?? false) ||
(track.ReleaseMedia.Release.IsLocked ?? false ) ||
(track.ReleaseMedia.Release.Artist.IsLocked ?? false);
result.Thumbnail = base.MakeTrackThumbnailImage(id);
result.ReleaseMediaId = track.ReleaseMedia.RoadieId.ToString();
result.Artist = new DataToken
{
Text = track.ReleaseMedia.Release.Artist.Name,
Value = track.ReleaseMedia.Release.Artist.RoadieId.ToString()
};
result.ArtistThumbnail = this.MakeArtistThumbnailImage(track.ReleaseMedia.Release.Artist.RoadieId);
result.Release = new DataToken
{
Text = track.ReleaseMedia.Release.Title,
Value = track.ReleaseMedia.Release.RoadieId.ToString()
};
result.ReleaseThumbnail = this.MakeReleaseThumbnailImage(track.ReleaseMedia.Release.RoadieId);
if(track.ArtistId.HasValue)
{
var trackArtist = this.DbContext.Artists.FirstOrDefault(x => x.Id == track.ArtistId);
if(trackArtist == null)
{
this.Logger.LogWarning($"Unable to find Track Artist [{ track.ArtistId }");
}
else
{
result.TrackArtist = new DataToken
{
Text = trackArtist.Name,
Value = trackArtist.RoadieId.ToString()
};
result.TrackArtistThumbnail = this.MakeArtistThumbnailImage(trackArtist.RoadieId);
}
}
if (includes != null && includes.Any())
{
if (includes.Contains("stats"))
{
var userTracks = (from t in this.DbContext.Tracks
join ut in this.DbContext.UserTracks on t.Id equals ut.TrackId into tt
from ut in tt.DefaultIfEmpty()
where t.Id == track.Id
select ut).ToArray();
if (userTracks.Any())
{
result.Statistics = new Library.Models.Statistics.TrackStatistics
{
DislikedCount = userTracks.Count(x => x.IsDisliked ?? false),
FavoriteCount = userTracks.Count(x => x.IsFavorite ?? false),
PlayedCount = userTracks.Sum(x => x.PlayedCount),
FileSizeFormatted = ((long?)track.FileSize).ToFileSize(),
Time = TimeSpan.FromSeconds(Math.Floor((double)track.Duration / 1000)).ToString(@"hh\:mm\:ss")
};
}
}
}
sw.Stop();
return new OperationResult<Track>
{
Data = result,
IsSuccess = result != null,
OperationTime = sw.ElapsedMilliseconds
};
}
public static long DetermineByteEndFromHeaders(IHeaderDictionary headers, long fileLength)
{
var defaultFileLength = fileLength - 1;
if (headers == null || !headers.Any(x => x.Key == "Range"))
{
return defaultFileLength;
}
long? result = null;
var rangeHeader = headers["Range"];
string rangeEnd = null;
var rangeBegin = rangeHeader.FirstOrDefault();
if (!string.IsNullOrEmpty(rangeBegin))
{
//bytes=0-
rangeBegin = rangeBegin.Replace("bytes=", "");
var parts = rangeBegin.Split('-');
rangeBegin = parts[0];
if (parts.Length > 1)
{
rangeEnd = parts[1];
}
if (!string.IsNullOrEmpty(rangeEnd))
{
result = long.TryParse(rangeEnd, out long outValue) ? (int?)outValue : null;
}
}
return result ?? defaultFileLength;
}
public static long DetermineByteStartFromHeaders(IHeaderDictionary headers)
{
if (headers == null || !headers.Any(x => x.Key == "Range"))
{
return 0;
}
long result = 0;
var rangeHeader = headers["Range"];
var rangeBegin = rangeHeader.FirstOrDefault();
if (!string.IsNullOrEmpty(rangeBegin))
{
//bytes=0-
rangeBegin = rangeBegin.Replace("bytes=", "");
var parts = rangeBegin.Split('-');
rangeBegin = parts[0];
if (!string.IsNullOrEmpty(rangeBegin))
{
long.TryParse(rangeBegin, out result);
}
}
return result;
}
public async Task<Library.Models.Pagination.PagedResult<TrackList>> List(User roadieUser, PagedRequest request, bool? doRandomize = false, Guid? releaseId = null)
{
var sw = new Stopwatch();
sw.Start();
if (!string.IsNullOrEmpty(request.Sort))
{
request.Sort = request.Sort.Replace("createdDate", "createdDateTime");
request.Sort = request.Sort.Replace("lastUpdated", "lastUpdatedDateTime");
request.Sort = request.Sort.Replace("artist", "TrackArtistName, ReleaseArtistName");
}
var resultQuery = (from t in this.DbContext.Tracks
join rm in this.DbContext.ReleaseMedias on t.ReleaseMediaId equals rm.Id
join r in this.DbContext.Releases on rm.ReleaseId equals r.Id
join trackArtist in this.DbContext.Artists on t.ArtistId equals trackArtist.Id into tas
from trackArtist in tas.DefaultIfEmpty()
join releaseArtist in this.DbContext.Artists on r.ArtistId equals releaseArtist.Id
where (t.Hash != null || releaseId != null)
where (request.FilterMinimumRating == null || t.Rating >= request.FilterMinimumRating.Value)
where (request.FilterToArtistId == null || r.Artist.RoadieId == request.FilterToArtistId)
where (request.FilterValue == "" || (t.Title.Contains(request.FilterValue) || t.AlternateNames.Contains(request.FilterValue)))
where (releaseId == null || (releaseId != null && r.RoadieId == releaseId))
select new { t, rm, r, trackArtist, releaseArtist });
if (!string.IsNullOrEmpty(request.FilterValue))
{
if (request.FilterValue.StartsWith("#"))
{
// Find any releases by tags
var tagValue = request.FilterValue.Replace("#", "");
resultQuery = resultQuery.Where(x => x.t.Tags != null && x.t.Tags.Contains(tagValue));
}
}
var result = resultQuery.Select(x =>
new TrackList
{
DatabaseId = x.t.Id,
Id = x.t.RoadieId,
Track = new DataToken
{
Text = x.t.Title,
Value = x.t.RoadieId.ToString()
},
Release = new DataToken
{
Text = x.r.Title,
Value = x.r.RoadieId.ToString()
},
Artist = new DataToken
{
Text = x.releaseArtist.Name,
Value = x.releaseArtist.RoadieId.ToString()
},
TrackArtist = x.trackArtist != null ? new DataToken
{
Text = x.trackArtist.Name,
Value = x.trackArtist.RoadieId.ToString()
} : null,
TrackNumber = x.t.TrackNumber,
MediaNumber = x.rm.MediaNumber,
CreatedDate = x.t.CreatedDate,
LastUpdated = x.t.LastUpdated,
ReleaseThumbnail = this.MakeReleaseThumbnailImage(x.r.RoadieId),
Duration = x.t.Duration,
Rating = x.t.Rating,
ArtistThumbnail = this.MakeArtistThumbnailImage(x.releaseArtist.RoadieId),
Title = x.t.Title,
TrackArtistThumbnail = x.trackArtist != null ? this.MakeArtistThumbnailImage(x.trackArtist.RoadieId) : null,
TrackPlayUrl = $"{ this.HttpContext.BaseUrl }/play/track/{ x.t.RoadieId }.mp3",
Thumbnail = this.MakeTrackThumbnailImage(x.t.RoadieId)
});
string sortBy = null;
var rowCount = result.Count();
TrackList[] rows = null;
if (doRandomize ?? false)
{
request.Limit = request.LimitValue > roadieUser.RandomReleaseLimit ? roadieUser.RandomReleaseLimit : request.LimitValue;
rows = result.OrderBy(x => Guid.NewGuid()).Skip(request.SkipValue).Take(request.LimitValue).ToArray();
}
else
{
if (request.Action == User.ActionKeyUserRated)
{
sortBy = string.IsNullOrEmpty(request.Sort) ? request.OrderValue(new Dictionary<string, string> { { "UserTrack.Rating", "DESC" }, { "MediaNumber", "ASC" }, { "TrackNumber", "ASC" } }) : request.OrderValue(null);
}
else
{
sortBy = string.IsNullOrEmpty(request.Sort) ? request.OrderValue(new Dictionary<string, string> { { "Release.Text", "ASC" }, { "MediaNumber", "ASC" }, { "TrackNumber", "ASC" } }) : request.OrderValue(null);
}
rows = result.OrderBy(sortBy).Skip(request.SkipValue).Take(request.LimitValue).ToArray();
}
if (rows.Any() && roadieUser != null)
{
foreach (var userTrack in this.GetUser(roadieUser.UserId).TrackRatings)
{
var row = rows.FirstOrDefault(x => x.DatabaseId == userTrack.TrackId);
if (row != null)
{
row.UserRating = new UserTrack
{
IsDisliked = userTrack.IsDisliked ?? false,
IsFavorite = userTrack.IsFavorite ?? false,
Rating = userTrack.Rating,
LastPlayed = userTrack.LastPlayed,
PlayedCount = userTrack.PlayedCount
};
}
}
}
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 new Library.Models.Pagination.PagedResult<TrackList>
{
TotalCount = rowCount,
CurrentPage = request.PageValue,
TotalPages = (int)Math.Ceiling((double)rowCount / request.LimitValue),
OperationTime = sw.ElapsedMilliseconds,
Rows = rows
};
}
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>
{
Data = info
};
}
}
}