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/*
* Cantata
*
* Copyright (c) 2011-2022 Craig Drummond <craig.p.drummond@gmail.com>
*
* ----
*
* 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "metaengine.h"
#include "lastfmengine.h"
#include "wikipediaengine.h"
#include <QDebug>
static bool debugEnabled = false;
#define DBUG \
if (debugEnabled) qWarning() << metaObject()->className() << __FUNCTION__
void MetaEngine::enableDebug()
{
debugEnabled = true;
}
static const QLatin1String constBlankResp("-");
MetaEngine::MetaEngine(QObject* p)
: ContextEngine(p)
{
wiki = new WikipediaEngine(this);
lastfm = new LastFmEngine(this);
connect(wiki, SIGNAL(searchResult(QString, QString)), SLOT(wikiResponse(QString, QString)));
connect(lastfm, SIGNAL(searchResult(QString, QString)), SLOT(lastFmResponse(QString, QString)));
}
QStringList MetaEngine::getLangs() const
{
QStringList langs = wiki->getLangs();
langs.append(LastFmEngine::constLang);
return langs;
}
QString MetaEngine::getPrefix(const QString& key) const
{
return key == LastFmEngine::constLang ? LastFmEngine::constLang : wiki->getPrefix(key);
}
QString MetaEngine::translateLinks(QString text) const
{
return lastfm->translateLinks(wiki->translateLinks(text));
}
void MetaEngine::search(const QStringList& query, Mode mode)
{
DBUG << query << (int)mode;
responses.clear();
wiki->cancel();
lastfm->cancel();
wiki->search(query, mode);
lastfm->search(query, mode);
}
void MetaEngine::wikiResponse(const QString& html, const QString& lang)
{
DBUG << html.isEmpty() << lang.isEmpty();
if (!html.isEmpty()) {
// Got a wikipedia reponse, use it!
DBUG << "Got wiki response!";
lastfm->cancel();
emit searchResult(html, lang);
responses.clear();
}
else if (responses[LastFm].html.isEmpty()) {
DBUG << "Wiki empty, but not received last.fm";
// Wikipedia response is empty, but have not received last.fm reply yet.
// So, indicate that Wikipedia was empty - and wait for last.fm
responses[Wiki] = Response(constBlankResp, lang);
}
else if (constBlankResp == responses[LastFm].html) {
DBUG << "Both responses empty";
// Last.fm is empty as well :-(
emit searchResult(QString(), QString());
responses.clear();
}
else {
// Got a last.fm response, use that!
DBUG << "Wiki empty, last.fm not - so use last.fm";
emit searchResult(responses[LastFm].html, responses[LastFm].lang);
responses.clear();
}
}
void MetaEngine::lastFmResponse(const QString& html, const QString& lang)
{
DBUG << html.isEmpty() << lang.isEmpty();
if (constBlankResp == responses[Wiki].html) {
// Wikipedia failed, so use last.fm response...
DBUG << "Wiki failed, so use last.fm";
emit searchResult(html, lang);
responses.clear();
}
else if (responses[Wiki].html.isEmpty()) {
// No Wikipedia response yet, so save last.fm response...
DBUG << "No wiki response, save last.fm";
responses[LastFm] = Response(html.isEmpty() ? constBlankResp : html, lang);
}
}
#include "moc_metaengine.cpp"
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