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/***
This file is part of snapcast
Copyright (C) 2014-2024 Johannes Pohl
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#pragma once
// local headers
#include "common/json.hpp"
// standard headers
#include <optional>
#include <string>
using json = nlohmann::json;
class Metadata
{
public:
struct ArtData
{
std::string data;
std::string extension;
bool operator==(const ArtData& other) const
{
return ((other.data == data) && (other.extension == extension));
}
bool operator!=(const ArtData& other) const
{
return !(other == *this);
}
};
Metadata() = default;
Metadata(const json& j);
/// https://www.musicpd.org/doc/html/protocol.html#tags
/// the duration of the song
std::optional<float> duration;
/// the artist name. Its meaning is not well-defined; see “composer” and “performer” for more specific tags.
std::optional<std::vector<std::string>> artist;
/// same as artist, but for sorting. This usually omits prefixes such as “The”.
std::optional<std::vector<std::string>> artist_sort;
/// the album name.
std::optional<std::string> album;
/// same as album, but for sorting.
std::optional<std::string> album_sort;
/// on multi-artist albums, this is the artist name which shall be used for the whole album. The exact meaning of this tag is not well-defined.
std::optional<std::vector<std::string>> album_artist;
/// same as albumartist, but for sorting.
std::optional<std::vector<std::string>> album_artist_sort;
/// a name for this song. This is not the song title. The exact meaning of this tag is not well-defined. It is often used by badly configured internet radio
/// stations with broken tags to squeeze both the artist name and the song title in one tag.
std::optional<std::string> name;
/// the song’s release date. This is usually a 4-digit year.
std::optional<std::string> date;
/// the song’s original release date.
std::optional<std::string> original_date;
/// the artist who performed the song.
std::optional<std::string> performer;
/// the conductor who conducted the song.
std::optional<std::string> conductor;
/// “a work is a distinct intellectual or artistic creation, which can be expressed in the form of one or more audio recordings”
std::optional<std::string> work;
/// “used if the sound belongs to a larger category of sounds/music” (from the IDv2.4.0 TIT1 description).
std::optional<std::string> grouping;
/// the name of the label or publisher.
std::optional<std::string> label;
/// the artist id in the MusicBrainz database.
std::optional<std::string> musicbrainz_artist_id;
/// the album id in the MusicBrainz database.
std::optional<std::string> musicbrainz_album_id;
/// the album artist id in the MusicBrainz database.
std::optional<std::string> musicbrainz_album_artist_id;
/// the track id in the MusicBrainz database.
std::optional<std::string> musicbrainz_track_id;
/// the release track id in the MusicBrainz database.
std::optional<std::string> musicbrainz_release_track_id;
/// the work id in the MusicBrainz database.
std::optional<std::string> musicbrainz_work_id;
/// https://www.freedesktop.org/wiki/Specifications/mpris-spec/metadata/
/// A unique identity for this track within the context of an MPRIS object (eg: tracklist).
std::optional<std::string> track_id;
/// URI: The location of an image representing the track or album. Clients should not assume this will continue to exist when the media player stops giving
/// out the URL
std::optional<std::string> art_url;
/// Base64 encoded data of an image representing the track or album
std::optional<ArtData> art_data;
/// The track lyrics
std::optional<std::string> lyrics;
/// The speed of the music, in beats per minute
std::optional<uint16_t> bpm;
/// Float: An automatically-generated rating, based on things such as how often it has been played. This should be in the range 0.0 to 1.0
std::optional<float> auto_rating;
/// A (list of) freeform comment(s)
std::optional<std::vector<std::string>> comment;
/// The composer(s) of the track
std::optional<std::vector<std::string>> composer;
/// Date/Time: When the track was created. Usually only the year component will be useful
std::optional<std::string> content_created;
/// Integer: The disc number on the album that this track is from
std::optional<uint16_t> disc_number;
/// Date/Time: When the track was first played
std::optional<std::string> first_used;
/// List of Strings: The genre(s) of the track
std::optional<std::vector<std::string>> genre;
/// Date/Time: When the track was last played
std::optional<std::string> last_used;
/// List of Strings: The lyricist(s) of the track
std::optional<std::vector<std::string>> lyricist;
/// String: The track title
std::optional<std::string> title;
/// Integer: The track number on the album disc
std::optional<uint16_t> track_number;
/// URI: The location of the media file.
std::optional<std::string> url;
/// Integer: The number of times the track has been played.
std::optional<uint16_t> use_count;
/// Float: A user-specified rating. This should be in the range 0.0 to 1.0.
std::optional<float> user_rating;
/// Spotify artist id
std::optional<std::string> spotify_artist_id;
/// Spotify track id
std::optional<std::string> spotify_track_id;
json toJson() const;
void fromJson(const json& j);
bool operator==(const Metadata& other) const;
};
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