62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
#include "lastfmsuggester.h"
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#include <lastfm/XmlQuery.h>
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#include "core/logging.h"
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#include "core/timeconstants.h"
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using lastfm::XmlQuery;
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LastFMSuggester::LastFMSuggester(QObject* parent)
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: QObject(parent),
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next_id_(0) {
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}
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int LastFMSuggester::SuggestSongs(const Song& song) {
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QMap<QString, QString> params;
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params["method"] = "track.getsimilar";
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params["track"] = song.title();
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params["artist"] = song.artist();
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params["limit"] = "25";
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QNetworkReply* reply = lastfm::ws::get(params);
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connect(reply, SIGNAL(finished()), SLOT(RequestFinished()));
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int id = next_id_++;
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replies_[reply] = id;
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return id;
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}
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void LastFMSuggester::RequestFinished() {
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QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());
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Q_ASSERT(reply);
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reply->deleteLater();
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QMap<QNetworkReply*, int>::iterator it = replies_.find(reply);
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if (it == replies_.end()) {
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return;
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}
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int id = it.value();
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replies_.erase(it);
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lastfm::XmlQuery lfm;
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if (lfm.parse(reply->readAll())) {
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const QList<XmlQuery> tracks = lfm["similartracks"].children("track");
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SongList songs;
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foreach (const XmlQuery& q, tracks) {
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Song song;
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song.Init(
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q["name"].text(),
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q["artist"]["name"].text(),
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QString::null,
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QString(q["duration"].text()).toInt() * kNsecPerMsec);
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songs << song;
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}
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qLog(Debug) << songs.length() << "suggested songs from Last.fm";
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emit SuggestSongsFinished(id, songs);
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} else {
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qLog(Error) << lfm.parseError().message();
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emit SuggestSongsFinished(id, SongList());
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}
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}
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