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/*
* Cantata
*
* Copyright (c) 2011-2022 Craig Drummond <craig.p.drummond@gmail.com>
*
*/
/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ultimatelyrics.h"
#include "gui/settings.h"
#include "support/globalstatic.h"
#include "ultimatelyricsprovider.h"
#include <QDir>
#include <QFile>
#include <QFileInfoList>
#include <QSet>
#include <QXmlStreamReader>
#include <algorithm>
GLOBAL_STATIC(UltimateLyrics, instance)
static bool compareLyricProviders(const UltimateLyricsProvider* a, const UltimateLyricsProvider* b)
{
return a->getRelevance() < b->getRelevance();
}
static QString parseInvalidIndicator(QXmlStreamReader* reader)
{
QString ret = reader->attributes().value("value").toString();
reader->skipCurrentElement();
return ret;
}
static UltimateLyricsProvider::Rule parseRule(QXmlStreamReader* reader)
{
UltimateLyricsProvider::Rule ret;
while (!reader->atEnd()) {
reader->readNext();
if (QXmlStreamReader::EndElement == reader->tokenType()) {
break;
}
if (QXmlStreamReader::StartElement == reader->tokenType()) {
if (QLatin1String("item") == reader->name()) {
QXmlStreamAttributes attr = reader->attributes();
if (attr.hasAttribute("tag")) {
ret << UltimateLyricsProvider::RuleItem(attr.value("tag").toString(), QString());
}
else if (attr.hasAttribute("begin")) {
ret << UltimateLyricsProvider::RuleItem(attr.value("begin").toString(), attr.value("end").toString());
}
}
reader->skipCurrentElement();
}
}
return ret;
}
static UltimateLyricsProvider* parseProvider(QXmlStreamReader* reader)
{
QXmlStreamAttributes attributes = reader->attributes();
UltimateLyricsProvider* scraper = new UltimateLyricsProvider;
scraper->setName(attributes.value("name").toString());
scraper->setCharset(attributes.value("charset").toString());
scraper->setUrl(attributes.value("url").toString());
while (!reader->atEnd()) {
reader->readNext();
if (QXmlStreamReader::EndElement == reader->tokenType()) {
break;
}
if (QXmlStreamReader::StartElement == reader->tokenType()) {
if (QLatin1String("extract") == reader->name()) {
scraper->addExtractRule(parseRule(reader));
}
else if (QLatin1String("exclude") == reader->name()) {
scraper->addExcludeRule(parseRule(reader));
}
else if (QLatin1String("invalidIndicator") == reader->name()) {
scraper->addInvalidIndicator(parseInvalidIndicator(reader));
}
else if (QLatin1String("urlFormat") == reader->name()) {
scraper->addUrlFormat(reader->attributes().value("replace").toString(), reader->attributes().value("with").toString());
reader->skipCurrentElement();
}
else {
reader->skipCurrentElement();
}
}
}
return scraper;
}
void UltimateLyrics::release()
{
for (UltimateLyricsProvider* provider : providers) {
delete provider;
}
providers.clear();
}
const QList<UltimateLyricsProvider*> UltimateLyrics::getProviders()
{
load();
return providers;
}
UltimateLyricsProvider* UltimateLyrics::providerByName(const QString& name) const
{
for (UltimateLyricsProvider* provider : providers) {
if (provider->getName() == name) {
return provider;
}
}
return nullptr;
}
UltimateLyricsProvider* UltimateLyrics::getNext(int& index)
{
load();
index++;
if (index > -1 && index < providers.count()) {
for (int i = index; i < providers.count(); ++i) {
if (providers.at(i)->isEnabled()) {
index = i;
return providers.at(i);
}
}
}
return nullptr;
}
void UltimateLyrics::load()
{
if (!providers.isEmpty()) {
return;
}
QStringList files;
QString userDir = Utils::dataDir();
if (!userDir.isEmpty()) {
QFileInfoList files = QDir(userDir).entryInfoList(QStringList() << QLatin1String("lyrics_*.xml"), QDir::NoDotAndDotDot | QDir::Files);
for (const QFileInfo& f : files) {
files.append(QFileInfo(f.absoluteFilePath()));
}
}
files.append(":lyrics_providers.xml");
QSet<QString> providerNames;
for (const auto& f : files) {
QFile file(f);
if (file.open(QIODevice::ReadOnly)) {
QXmlStreamReader reader(&file);
while (!reader.atEnd()) {
reader.readNext();
if (QLatin1String("provider") == reader.name()) {
QString name = reader.attributes().value("name").toString();
if (!providerNames.contains(name)) {
UltimateLyricsProvider* provider = parseProvider(&reader);
if (provider) {
providers << provider;
connect(provider, SIGNAL(lyricsReady(int, QString)), this, SIGNAL(lyricsReady(int, QString)));
providerNames.insert(name);
}
}
}
}
}
}
setEnabled(Settings::self()->lyricProviders());
}
void UltimateLyrics::setEnabled(const QStringList& enabled)
{
for (UltimateLyricsProvider* provider : providers) {
provider->setEnabled(false);
provider->setRelevance(0xFFFF);
}
int relevance = 0;
for (const QString& p : enabled) {
UltimateLyricsProvider* provider = providerByName(p);
if (provider) {
provider->setEnabled(true);
provider->setRelevance(relevance++);
}
}
std::sort(providers.begin(), providers.end(), compareLyricProviders);
Settings::self()->saveLyricProviders(enabled);
}
#include "moc_ultimatelyrics.cpp"
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