1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Playlists;
using System;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Model.Querying;
namespace Emby.Server.Implementations.Library
{
public class MusicManager : IMusicManager
{
private readonly ILibraryManager _libraryManager;
public MusicManager(ILibraryManager libraryManager)
{
_libraryManager = libraryManager;
}
public IEnumerable<Audio> GetInstantMixFromSong(Audio item, User user)
{
var list = new List<Audio>
{
item
};
return list.Concat(GetInstantMixFromGenres(item.Genres, user));
}
public IEnumerable<Audio> GetInstantMixFromArtist(MusicArtist item, User user)
{
return GetInstantMixFromGenres(item.Genres, user);
}
public IEnumerable<Audio> GetInstantMixFromAlbum(MusicAlbum item, User user)
{
return GetInstantMixFromGenres(item.Genres, user);
}
public IEnumerable<Audio> GetInstantMixFromFolder(Folder item, User user)
{
var genres = item
.GetRecursiveChildren(user, new InternalItemsQuery(user)
{
IncludeItemTypes = new[] { typeof(Audio).Name }
})
.Cast<Audio>()
.SelectMany(i => i.Genres)
.Concat(item.Genres)
.DistinctNames();
return GetInstantMixFromGenres(genres, user);
}
public IEnumerable<Audio> GetInstantMixFromPlaylist(Playlist item, User user)
{
return GetInstantMixFromGenres(item.Genres, user);
}
public IEnumerable<Audio> GetInstantMixFromGenres(IEnumerable<string> genres, User user)
{
var genreIds = genres.DistinctNames().Select(i =>
{
try
{
return _libraryManager.GetMusicGenre(i).Id.ToString("N");
}
catch
{
return null;
}
}).Where(i => i != null);
return GetInstantMixFromGenreIds(genreIds, user);
}
public IEnumerable<Audio> GetInstantMixFromGenreIds(IEnumerable<string> genreIds, User user)
{
return _libraryManager.GetItemList(new InternalItemsQuery(user)
{
IncludeItemTypes = new[] { typeof(Audio).Name },
GenreIds = genreIds.ToArray(),
Limit = 200,
SortBy = new[] { ItemSortBy.Random }
}).Cast<Audio>();
}
public IEnumerable<Audio> GetInstantMixFromItem(BaseItem item, User user)
{
var genre = item as MusicGenre;
if (genre != null)
{
return GetInstantMixFromGenreIds(new[] { item.Id.ToString("N") }, user);
}
var playlist = item as Playlist;
if (playlist != null)
{
return GetInstantMixFromPlaylist(playlist, user);
}
var album = item as MusicAlbum;
if (album != null)
{
return GetInstantMixFromAlbum(album, user);
}
var artist = item as MusicArtist;
if (artist != null)
{
return GetInstantMixFromArtist(artist, user);
}
var song = item as Audio;
if (song != null)
{
return GetInstantMixFromSong(song, user);
}
var folder = item as Folder;
if (folder != null)
{
return GetInstantMixFromFolder(folder, user);
}
return new Audio[] { };
}
}
}
|
