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#include <QTextEdit>
#include <QPushButton>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QProcess>
#include <QApplication>
#include <QCursor>
#include <QSqlQuery>
#include <QFileInfo>
#include "taglib/tag.h"
#include "indexerwidget.h"
IndexerWidget::IndexerWidget(QWidget *parent) : QWidget(parent) {
//widgets
mLog = new QTextEdit;
mLog->setFont(QFont("courier new"));
mLog->setTextColor(Qt::darkGreen);
mError = new QTextEdit;
mError->setFont(QFont("courier new"));
mError->setTextColor(Qt::red);
QPushButton *startB = new QPushButton(tr("Index"));
connect(startB, SIGNAL(clicked()), this, SLOT(startIndexing()));
QPushButton *cancelB = new QPushButton(tr("Cancel"));
connect(cancelB, SIGNAL(clicked()), this, SLOT(stopIndexing()));
//reader
mReader = new BeetReader;
connect(mReader, SIGNAL(message(QString)), this, SLOT(addToLog(QString)));
connect(mReader, SIGNAL(errorMsg(QString)), this, SLOT(addToError(QString)));
//layout
QVBoxLayout *mainLayout = new QVBoxLayout;
QHBoxLayout *buttonLayout = new QHBoxLayout;
buttonLayout->addStretch();
buttonLayout->addWidget(startB);
buttonLayout->addWidget(cancelB);
buttonLayout->addStretch();
mainLayout->addWidget(mLog);
mainLayout->addWidget(mError);
mainLayout->addLayout(buttonLayout);
setLayout(mainLayout);
}
void IndexerWidget::startIndexing(){
mLog->clear();
mError->clear();
mReader->start();
}
void IndexerWidget::stopIndexing(){
mReader->cancel();
}
void IndexerWidget::addToLog(QString msg){
mLog->append(msg);
}
void IndexerWidget::addToError(QString msg){
mError->append(msg);
}
BeetReader::BeetReader() : mCanceled(false){
mDb = QSqlDatabase::database("beetplayerdb");
mInsertArtistsQ = new QSqlQuery(mDb);
mInsertArtistsQ->prepare("INSERT INTO artists (tartists_name) VALUES(:name)");
mCurArtistQ = new QSqlQuery(mDb);
mCurArtistQ->prepare("SELECT currval('artist_iartists_id__seq')");
mInsertGenresQ = new QSqlQuery(mDb);
mInsertGenresQ->prepare("INSERT INTO genres (tgenres_name) VALUES(:name)");
mCurGenresQ = new QSqlQuery(mDb);
mCurGenresQ->prepare("SELECT currval('genres_igenre_id__seq')");
mInsertAlbumQ = new QSqlQuery(mDb);
mInsertAlbumQ->prepare("INSERT INTO albums(iartists_id, igenres_id, talbum_name, siyear) VALUES(:aid, :genid, :name, :year)");
mCurAlbumQ = new QSqlQuery(mDb);
mCurAlbumQ->prepare("SELECT currval('albums_ialbums_id__seq')");
mInsertSongQ = new QSqlQuery(mDb);
mInsertSongQ->prepare("INSERT INTO songs (ialbums_id, sipos, ttitle, tfullpath) VALUES(:aid, :pos, :title, :tfp)");
}
void BeetReader::run(){
emit message(QString(tr("Clearing everything...")));
clearAll();
QProcess lister;
lister.start("beet", QStringList() << "ls" << "-p");
qApp->setOverrideCursor(QCursor(Qt::WaitCursor));
emit message(QString(tr("Waiting for beet ls -p...")));
lister.waitForStarted();
lister.waitForFinished();
qApp->restoreOverrideCursor();
QByteArray lOut = lister.readAllStandardOutput();
QList<QByteArray> files = lOut.split('\n');
int totalCount = files.size();
QString foundMsg = QString(tr("Found %1 file(s)\n").arg(QString::number(totalCount)));
emit message(foundMsg);
int ctr = 1;
foreach(QByteArray s, files){
//fetch data from file
TagLib::FileRef file(QString(s).toUtf8());
if(file.isNull()){
QString fn = QString(s).toUtf8();
QString error = QString(tr("IsNull: %1")).arg(fn);
emit errorMsg(error);
continue;
}
QString artist = toQString(file.tag()->artist());
QString album = toQString(file.tag()->album());
QString title = toQString(file.tag()->title());
QString genre = toQString(file.tag()->genre());
quint16 track = file.tag()->track();
quint16 year = file.tag()->year();
//write to database
int artistId = doArtist(artist);
int genreId = doGenre(genre);
int albumId = doAlbum(album, genreId, artistId, year, QString(s).toUtf8());
doSong(title, track, albumId, s);
if(ctr % 100 == 0){
QString msg = QString(tr("Processed %1 files of %2")).arg(QString::number(ctr)).arg(QString::number(totalCount));
emit message(msg);
}
mCancelMx.lock();
if(mCanceled == true){
mCanceled = false;
mCancelMx.unlock();
return;
}
mCancelMx.unlock();
++ctr;
}
emit message(QString(tr("Indexing DONE!")));
}
void BeetReader::cancel(){
mCancelMx.lock();
mCanceled = true;
mCancelMx.unlock();
}
QString BeetReader::toQString(TagLib::String string){
QString retval = QString::fromStdWString(string.toWString());
retval = retval.simplified().toLower();
return retval;
}
void BeetReader::clearAll(){
QSqlQuery q1("DELETE FROM songs", mDb);
QSqlQuery q2("DELETE FROM albums", mDb);
QSqlQuery q3("DELETE FROM genres", mDb);
QSqlQuery q4("DELETE FROM artists", mDb);
mArtistH.clear();
mAlbumH.clear();
mGenreH.clear();
emit cleared();
}
int BeetReader::doArtist(QString name){
if(mArtistH.contains(name)){
return mArtistH.value(name);
}
mDb.transaction();
mInsertArtistsQ->bindValue(":name", name);
mInsertArtistsQ->exec();
mCurArtistQ->exec();
int retval = -1;
while(mCurArtistQ->next()){
retval = mCurArtistQ->value(0).toInt();
}
mArtistH.insert(name, retval);
mDb.commit();
return retval;
}
int BeetReader::doGenre(QString name){
if(mGenreH.contains(name)){
return mGenreH.value(name);
}
mDb.transaction();
mInsertGenresQ->bindValue(":name", name);
mInsertGenresQ->exec();
mCurGenresQ->exec();
int retval = -1;
mCurGenresQ->exec();
while(mCurGenresQ->next()){
retval = mCurGenresQ->value(0).toInt();
}
mGenreH.insert(name, retval);
mDb.commit();
return retval;
}
int BeetReader::doAlbum(QString name, int genre, int artist, int year, QString fullPath){
QFileInfo fi(fullPath);
QString key = fi.absolutePath();
if(mAlbumH.contains(key)){
return mAlbumH.value(key);
}
mDb.transaction();
mInsertAlbumQ->bindValue(":name", name);
mInsertAlbumQ->bindValue(":aid", artist);
mInsertAlbumQ->bindValue(":genid", genre);
mInsertAlbumQ->bindValue(":year", year);
mInsertAlbumQ->exec();
int retval = -1;
mCurAlbumQ->exec();
while(mCurAlbumQ->next()){
retval = mCurAlbumQ->value(0).toInt();
}
mAlbumH.insert(key, retval);
mDb.commit();
return retval;
}
void BeetReader::doSong(QString title, int pos, int album, QString fullpath){
mDb.transaction();
mInsertSongQ->bindValue(":title", title);
mInsertSongQ->bindValue(":pos", pos);
mInsertSongQ->bindValue(":aid", album);
mInsertSongQ->bindValue(":tfp", fullpath);
mInsertSongQ->exec();
mDb.commit();
}
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