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/*
* Cantata
*
* Copyright (c) 2017-2022 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 "mpdlibrarydb.h"
#include "gui/settings.h"
#include "mpd-interface/mpdconnection.h"
#include "support/globalstatic.h"
#include "support/utils.h"
#include <QCoreApplication>
#include <QDebug>
#include <QSqlDatabase>
#include <QSqlError>
#include <QSqlQuery>
#define DBUG \
if (LibraryDb::debugEnabled()) qWarning() << metaObject()->className() << __FUNCTION__
static const QLatin1String constDirName("library");
static QString databaseName(const MPDConnectionDetails& details)
{
QString fileName = (!details.isLocal() ? details.hostname + '_' + QString::number(details.port) : details.hostname) + LibraryDb::constFileExt;
fileName.replace('/', '_');
fileName.replace('~', '_');
return Utils::dataDir(constDirName, true) + fileName;
}
void MpdLibraryDb::removeUnusedDbs()
{
QSet<QString> existing;
QList<MPDConnectionDetails> connections = Settings::self()->allConnections();
QString dirPath = Utils::dataDir(constDirName, false);
if (dirPath.isEmpty()) {
return;
}
for (const MPDConnectionDetails& conn : connections) {
existing.insert(databaseName(conn).mid(dirPath.length()));
}
QFileInfoList files = QDir(dirPath).entryInfoList(QStringList() << "*" + LibraryDb::constFileExt, QDir::Files);
for (const QFileInfo& file : files) {
if (!existing.contains(file.fileName())) {
QFile::remove(file.absoluteFilePath());
}
}
}
MpdLibraryDb::MpdLibraryDb(QObject* p)
: LibraryDb(p, "MPD"), loading(false), coverQuery(nullptr), albumIdOnlyCoverQuery(nullptr), artistImageQuery(nullptr)
{
connect(MPDConnection::self(), SIGNAL(updatingLibrary(time_t)), this, SLOT(updateStarted(time_t)));
connect(MPDConnection::self(), SIGNAL(librarySongs(QList<Song>*)), this, SLOT(insertSongs(QList<Song>*)));
connect(MPDConnection::self(), SIGNAL(updatedLibrary()), this, SLOT(updateFinished()));
connect(MPDConnection::self(), SIGNAL(statsUpdated(MPDStatsValues)), this, SLOT(statsUpdated(MPDStatsValues)));
connect(this, SIGNAL(loadLibrary()), MPDConnection::self(), SLOT(loadLibrary()));
connect(MPDConnection::self(), SIGNAL(connectionChanged(MPDConnectionDetails)), this, SLOT(connectionChanged(MPDConnectionDetails)));
DBUG;
}
MpdLibraryDb::~MpdLibraryDb()
{
}
Song MpdLibraryDb::getCoverSong(const QString& artistId, const QString& albumId)
{
DBUG << artistId << albumId;
if (0 != currentVersion && db) {
QSqlQuery* query = nullptr;
if (albumId.isEmpty()) {
if (!artistImageQuery) {
artistImageQuery = new QSqlQuery(*db);
artistImageQuery->prepare("select * from songs where artistId=:artistId limit 1;");
}
query = artistImageQuery;
query->bindValue(":artistId", artistId);
}
else if (artistId.isEmpty()) {
if (!albumIdOnlyCoverQuery) {
albumIdOnlyCoverQuery = new QSqlQuery(*db);
albumIdOnlyCoverQuery->prepare("select * from songs where albumId=:albumId limit 1;");
}
query = albumIdOnlyCoverQuery;
query->bindValue(":albumId", albumId);
}
else {
if (!coverQuery) {
coverQuery = new QSqlQuery(*db);
coverQuery->prepare("select * from songs where artistId=:artistId and albumId=:albumId limit 1;");
}
query = coverQuery;
query->bindValue(":albumId", albumId);
query->bindValue(":artistId", artistId);
}
query->exec();
DBUG << "coverquery" << query->executedQuery() << query->size();
while (query->next()) {
return getSong(*query);
}
}
return Song();
}
void MpdLibraryDb::connectionChanged(const MPDConnectionDetails& details)
{
QString dbFile = databaseName(details);
DBUG << dbFileName << dbFile;
if (dbFile != dbFileName) {
init(dbFile);
}
else {
emit libraryUpdated();
}
}
void MpdLibraryDb::reset()
{
delete coverQuery;
delete artistImageQuery;
delete albumIdOnlyCoverQuery;
coverQuery = nullptr;
artistImageQuery = nullptr;
albumIdOnlyCoverQuery = nullptr;
LibraryDb::reset();
}
void MpdLibraryDb::updateFinished()
{
loading = false;
LibraryDb::updateFinished();
}
void MpdLibraryDb::statsUpdated(const MPDStatsValues& stats)
{
if (!loading && stats.dbUpdate > currentVersion) {
DBUG << stats.dbUpdate << currentVersion;
loading = true;
emit loadLibrary();
}
}
#include "moc_mpdlibrarydb.cpp"
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