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Clementine-audio-player-Mac.../3rdparty/libechonest/Playlist.cpp

316 lines
12 KiB
C++

/****************************************************************************************
* Copyright (c) 2010 Leo Franchi <lfranchi@kde.org> *
* *
* 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 2 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/>. *
****************************************************************************************/
#include "Playlist.h"
#include "Playlist_p.h"
#include "Parsing_p.h"
Echonest::DynamicPlaylist::DynamicPlaylist()
: d( new DynamicPlaylistData )
{
}
Echonest::DynamicPlaylist::DynamicPlaylist(const Echonest::DynamicPlaylist& other)
: d( other.d )
{
}
Echonest::DynamicPlaylist::~DynamicPlaylist()
{
}
Echonest::DynamicPlaylist& Echonest::DynamicPlaylist::operator=(const Echonest::DynamicPlaylist& playlist)
{
d = playlist.d;
return *this;
}
QNetworkReply* Echonest::DynamicPlaylist::start(const Echonest::DynamicPlaylist::PlaylistParams& params)
{
// params are the same, if user passes in format parsing will throw, but it should be expected..
return generateInternal( params, "dynamic" );
}
Echonest::Song Echonest::DynamicPlaylist::parseStart(QNetworkReply* reply) throw( Echonest::ParseError )
{
Echonest::Parser::checkForErrors( reply );
QXmlStreamReader xml( reply->readAll() );
Echonest::Parser::readStatus( xml );
d->sessionId = Echonest::Parser::parsePlaylistSessionId( xml );
Echonest::SongList songs = Echonest::Parser::parseSongList( xml );
if( !songs.size() == 1 )
throw new Echonest::ParseError( UnknownParseError );
d->currentSong = songs.front();
return d->currentSong;
}
QByteArray Echonest::DynamicPlaylist::sessionId() const
{
return d->sessionId;
}
void Echonest::DynamicPlaylist::setSessionId(const QByteArray& id)
{
d->sessionId = id;
}
Echonest::Song Echonest::DynamicPlaylist::currentSong() const
{
return d->currentSong;
}
void Echonest::DynamicPlaylist::setCurrentSong(const Echonest::Song& song)
{
d->currentSong = song;
}
QNetworkReply* Echonest::DynamicPlaylist::fetchNextSong(int rating)
{
QUrl url = Echonest::baseGetQuery( "playlist", "dynamic" );
url.addEncodedQueryItem( "session_id", d->sessionId );
if( rating > 0 )
url.addEncodedQueryItem( "rating", QByteArray::number( rating ) );
return Echonest::Config::instance()->nam()->get( QNetworkRequest( url ) );
}
Echonest::Song Echonest::DynamicPlaylist::parseNextSong(QNetworkReply* reply)
{
return parseStart( reply );
}
QNetworkReply* Echonest::DynamicPlaylist::staticPlaylist(const Echonest::DynamicPlaylist::PlaylistParams& params)
{
return Echonest::DynamicPlaylist::generateInternal( params, "static" );
}
Echonest::SongList Echonest::DynamicPlaylist::parseStaticPlaylist(QNetworkReply* reply) throw( Echonest::ParseError )
{
Echonest::Parser::checkForErrors( reply );
QXmlStreamReader xml( reply->readAll() );
Echonest::Parser::readStatus( xml );
Echonest::SongList songs = Echonest::Parser::parseSongList( xml );
return songs;
}
QNetworkReply* Echonest::DynamicPlaylist::generateInternal(const Echonest::DynamicPlaylist::PlaylistParams& params, const QByteArray& type)
{
QUrl url = Echonest::baseGetQuery( "playlist", type );
Echonest::DynamicPlaylist::PlaylistParams::const_iterator iter = params.constBegin();
for( ; iter < params.constEnd(); ++iter ) {
if( iter->first == Format ) // If it's a format, we have to remove the xml format we automatically specify
url.removeEncodedQueryItem( "format" );
if( iter->first == Type ) { // convert type enum to string
switch( static_cast<Echonest::DynamicPlaylist::ArtistTypeEnum>( iter->second.toInt() ) )
{
case ArtistType:
url.addEncodedQueryItem( playlistParamToString( iter->first ), "artist" );
break;
case ArtistRadioType:
url.addEncodedQueryItem( playlistParamToString( iter->first ), "artist-radio" );
break;
case ArtistDescriptionType:
url.addEncodedQueryItem( playlistParamToString( iter->first ), "artist-description" );
break;
}
} else if( iter->first == Sort ) {
url.addEncodedQueryItem( playlistParamToString( iter->first ), playlistSortToString( static_cast<Echonest::DynamicPlaylist::SortingType>( iter->second.toInt() ) ) );
} else if( iter->first == Pick ) {
url.addEncodedQueryItem( playlistParamToString( iter->first ), playlistArtistPickToString( static_cast<Echonest::DynamicPlaylist::ArtistPick>( iter->second.toInt() ) ) );
} else if( iter->first == SongInformation ){
Echonest::Song::addQueryInformation( url, Echonest::Song::SongInformation( iter->second.value< Echonest::Song::SongInformation >() ) );
} else {
url.addQueryItem( QLatin1String( playlistParamToString( iter->first ) ), iter->second.toString().replace( QLatin1Char( ' ' ), QLatin1Char( '+' ) ) );
}
}
qDebug() << "Creating playlist URL" << url;
return Echonest::Config::instance()->nam()->get( QNetworkRequest( url ) );
}
QByteArray Echonest::DynamicPlaylist::playlistParamToString(Echonest::DynamicPlaylist::PlaylistParam param)
{
switch( param )
{
case Echonest::DynamicPlaylist::Type :
return "type";
case Echonest::DynamicPlaylist::Format :
return "format";
case Echonest::DynamicPlaylist::Pick:
return "artist_pick";
case Echonest::DynamicPlaylist::Variety :
return "variety";
case Echonest::DynamicPlaylist::ArtistId :
return "artist_id";
case Echonest::DynamicPlaylist::Artist :
return "artist";
case Echonest::DynamicPlaylist::SongId :
return "song_id";
case Echonest::DynamicPlaylist::Description :
return "description";
case Echonest::DynamicPlaylist::Results :
return "results";
case Echonest::DynamicPlaylist::MaxTempo :
return "max_tempo";
case Echonest::DynamicPlaylist::MinTempo :
return "min_tempo";
case Echonest::DynamicPlaylist::MaxDuration :
return "max_duration";
case Echonest::DynamicPlaylist::MinDuration :
return "min_duration";
case Echonest::DynamicPlaylist::MaxLoudness :
return "max_loudness";
case Echonest::DynamicPlaylist::MinLoudness :
return "min_loudness";
case Echonest::DynamicPlaylist::ArtistMaxFamiliarity :
return "artist_max_familiarity";
case Echonest::DynamicPlaylist::ArtistMinFamiliarity :
return "artist_min_familiarity";
case Echonest::DynamicPlaylist::ArtistMaxHotttnesss :
return "artist_max_hotttnesss";
case Echonest::DynamicPlaylist::ArtistMinHotttnesss :
return "artist_min_hotttnesss";
case Echonest::DynamicPlaylist::SongMaxHotttnesss :
return "song_max_hotttnesss";
case Echonest::DynamicPlaylist::SongMinHotttnesss :
return "song_min_hotttnesss";
case Echonest::DynamicPlaylist::ArtistMinLongitude :
return "artist_min_longitude";
case Echonest::DynamicPlaylist::ArtistMaxLongitude :
return "artist_max_longitude";
case Echonest::DynamicPlaylist::ArtistMinLatitude :
return "artist_min_latitude";
case Echonest::DynamicPlaylist::ArtistMaxLatitude :
return "artist_max_latitude";
case Echonest::DynamicPlaylist::Mode :
return "mode";
case Echonest::DynamicPlaylist::Key :
return "key";
case Echonest::DynamicPlaylist::SongInformation:
return "bucket";
case Echonest::DynamicPlaylist::Sort :
return "sort";
case Echonest::DynamicPlaylist::Limit :
return "limit";
case Echonest::DynamicPlaylist::Audio :
return "audio";
case Echonest::DynamicPlaylist::DMCA :
return "dmca";
}
return QByteArray();
}
QByteArray Echonest::DynamicPlaylist::playlistArtistPickToString(Echonest::DynamicPlaylist::ArtistPick pick)
{
switch( pick )
{
case PickSongHotttnesssAscending:
return "song_hotttnesss-asc";
case PickTempoAscending:
return "tempo-asc";
case PickDurationAscending:
return "duration-asc";
case PickLoudnessAscending:
return "loudness-asc";
case PickModeAscending:
return "mode-asc";
case PickKeyAscending:
return "key-asc";
case PickSongHotttnesssDescending:
return "song_hotttnesss-desc";
case PickTempoDescending:
return "tempo-desc";
case PickDurationDescending:
return "duration-desc";
case PickLoudnessDescending:
return "loudness-desc";
case PickModeDescending:
return "mode-desc";
case PickKeyDescending:
return "key-desc";
}
return QByteArray();
}
QByteArray Echonest::DynamicPlaylist::playlistSortToString(Echonest::DynamicPlaylist::SortingType sorting)
{
switch( sorting )
{
case SortTempoAscending:
return "tempo-asc";
case SortTempoDescending:
return "tempo-desc";
case SortDurationAscending:
return "duration-asc";
case SortDurationDescending:
return "duration-desc";
case SortArtistFamiliarityAscending:
return "artist_familiarity-asc";
case SortArtistFamiliarityDescending:
return "artist_familiarity-desc";
case SortArtistHotttnessAscending:
return "artist_hotttnesss-asc";
case SortArtistHotttnessDescending:
return "artist_hotttnesss-desc";
case SortSongHotttnesssAscending:
return "song_hotttnesss-asc";
case SortSongHotttnesssDescending:
return "song_hotttnesss-desc";
case SortLatitudeAscending:
return "latitude-asc";
case SortLatitudeDescending:
return "latitude-desc";
case SortLongitudeAscending:
return "longitude-asc";
case SortLongitudeDescending:
return "longitude-desc";
case SortModeAscending:
return "mode-asc";
case SortModeDescending:
return "mode-desc";
case SortKeyAscending:
return "key-asc";
case SortKeyDescending:
return "key-desc";
}
return QByteArray();
}
QDebug Echonest::operator<<(QDebug d, const Echonest::DynamicPlaylist& playlist)
{
d << QString::fromLatin1( "DynamicPlaylist(%1, %2)" ).arg( QLatin1String( playlist.sessionId() ), playlist.currentSong().toString() );
return d.maybeSpace();
}