yacreader/YACReaderLibrary/library_creator.cpp
2013-08-26 23:00:55 +02:00

520 lines
14 KiB
C++

#include "library_creator.h"
#include "custom_widgets.h"
#include <QMutex>
#include <QDebug>
#include <QSqlQuery>
#include <QSqlRecord>
#include "data_base_management.h"
#include "qnaturalsorting.h"
#include "db_helper.h"
#include "compressed_archive.h"
#include "comic.h"
#include <algorithm>
using namespace std;
#include "poppler-qt4.h"
//--------------------------------------------------------------------------------
LibraryCreator::LibraryCreator()
:creation(false)
{
_nameFilter << "*.cbr" << "*.cbz" << "*.rar" << "*.zip" << "*.tar" << "*.pdf" << "*.7z" << "*.cb7" << "*.arj" << "*.cbt";
}
void LibraryCreator::createLibrary(const QString &source, const QString &target)
{
creation = true;
processLibrary(source,target);
}
void LibraryCreator::updateLibrary(const QString &source, const QString &target)
{
processLibrary(source,target);
}
void LibraryCreator::processLibrary(const QString & source, const QString & target)
{
_source = source;
_target = target;
if(DataBaseManagement::checkValidDB(target+"/library.ydb")=="")
{
//se limpia el directorio ./yacreaderlibrary
delTree(target);
_mode = CREATOR;
}
else //
_mode = UPDATER;
}
//
void LibraryCreator::run()
{
stopRunning = false;
if(_mode == CREATOR)
{
_currentPathFolders.clear();
_currentPathFolders.append(Folder(1,1,"root","/"));
//se crean los directorios .yacreaderlibrary y .yacreaderlibrary/covers
QDir dir;
dir.mkpath(_target+"/covers");
//se crea la base de datos .yacreaderlibrary/library.ydb
_database = DataBaseManagement::createDatabase("library",_target);//
if(!_database.isOpen())
{
emit failedCreatingDB(_database.lastError().databaseText() + "-" + _database.lastError().driverText());
emit finished();
creation = false;
return;
}
/*QSqlQuery pragma("PRAGMA foreign_keys = ON",_database);*/
_database.transaction();
//se crea la librería
create(QDir(_source));
_database.commit();
_database.close();
QSqlDatabase::removeDatabase(_database.connectionName());
emit(created());
}
else
{
_currentPathFolders.clear();
_currentPathFolders.append(Folder(1,1,"root","/"));
_database = DataBaseManagement::loadDatabase(_target);
//_database.setDatabaseName(_target+"/library.ydb");
if(!_database.open())
{
emit failedOpeningDB(_database.lastError().databaseText() + "-" + _database.lastError().driverText());
emit finished();
creation = false;
return;
}
QSqlQuery pragma("PRAGMA foreign_keys = ON",_database);
_database.transaction();
update(QDir(_source));
_database.commit();
_database.close();
QSqlDatabase::removeDatabase(_target);
//si estabamos en modo creación, se está añadiendo una librería que ya existía y se ha actualizado antes de añadirse.
if(!creation)
emit(updated());
else
emit(created());
}
msleep(100);//TODO try to solve the problem with the udpate dialog (ya no se usa más...)
emit(finished());
creation = false;
}
void LibraryCreator::stop()
{
_database.commit();
stopRunning = true;
}
//retorna el id del ultimo de los folders
qulonglong LibraryCreator::insertFolders()
{
QList<Folder>::iterator i;
int currentId = 0;
for (i = _currentPathFolders.begin(); i != _currentPathFolders.end(); ++i)
{
if(!(i->knownId))
{
i->setFather(currentId);
currentId = DBHelper::insert(&(*i),_database);//insertFolder(currentId,*i);
i->setId(currentId);
}
else
{
currentId = i->id;
}
}
return 0;
}
void LibraryCreator::create(QDir dir)
{
dir.setNameFilters(_nameFilter);
dir.setFilter(QDir::AllDirs|QDir::Files|QDir::NoDotAndDotDot);
QFileInfoList list = dir.entryInfoList();
for (int i = 0; i < list.size(); ++i)
{
if(stopRunning)
return;
QFileInfo fileInfo = list.at(i);
QString fileName = fileInfo.fileName();
#ifdef Q_OS_MAC
QStringList src = _source.split("/");
QString filePath = fileInfo.absoluteFilePath();
QStringList fp = filePath.split("/");
for(int i = 0; i< src.count();i++)
{
fp.removeFirst();
}
QString relativePath = "/" + fp.join("/");
#else
QString relativePath = QDir::cleanPath(fileInfo.absoluteFilePath()).remove(_source);
#endif
if(fileInfo.isDir())
{
//se añade al path actual el folder, aún no se sabe si habrá que añadirlo a la base de datos
_currentPathFolders.append(Folder(fileInfo.fileName(),relativePath));
create(QDir(fileInfo.absoluteFilePath()));
//una vez importada la información del folder, se retira del path actual ya que no volverá a ser visitado
_currentPathFolders.pop_back();
}
else
{
insertComic(relativePath,fileInfo);
}
}
}
bool LibraryCreator::checkCover(const QString & hash)
{
return QFile::exists(_target+"/covers/"+hash+".jpg");
}
void LibraryCreator::insertComic(const QString & relativePath,const QFileInfo & fileInfo)
{
//en este punto sabemos que todos los folders que hay en _currentPath, deberían estar añadidos a la base de datos
insertFolders();
emit(coverExtracted(relativePath));
//Se calcula el hash del cómic
QCryptographicHash crypto(QCryptographicHash::Sha1);
QFile file(fileInfo.absoluteFilePath());
file.open(QFile::ReadOnly);
crypto.addData(file.read(524288));
file.close();
//hash Sha1 del primer 0.5MB + filesize
QString hash = QString(crypto.result().toHex().constData()) + QString::number(fileInfo.size());
ComicDB comic = DBHelper::loadComic(_currentPathFolders.last().id,fileInfo.fileName(),relativePath,hash,_database);
int numPages;
if(! ( comic.hasCover() && checkCover(hash)))
{
ThumbnailCreator tc(QDir::cleanPath(fileInfo.absoluteFilePath()),_target+"/covers/"+hash+".jpg",*comic.info.coverPage);
//ThumbnailCreator tc(QDir::cleanPath(fileInfo.absoluteFilePath()),_target+"/covers/"+fileInfo.fileName()+".jpg");
tc.create();
numPages = tc.getNumPages();
emit(comicAdded(relativePath,_target+"/covers/"+hash+".jpg"));
}
comic.info.setNumPages(numPages);
DBHelper::insert(&comic,_database);
}
void LibraryCreator::update(QDir dirS)
{
dirS.setNameFilters(_nameFilter);
dirS.setFilter(QDir::AllDirs|QDir::Files|QDir::NoDotAndDotDot);
dirS.setSorting(QDir::Name|QDir::IgnoreCase|QDir::LocaleAware|QDir::DirsFirst);
QFileInfoList listS = dirS.entryInfoList();
QList<LibraryItem *> folders = DBHelper::getFoldersFromParent(_currentPathFolders.last().id,_database);
QList<LibraryItem *> comics = DBHelper::getComicsFromParent(_currentPathFolders.last().id,_database);
QList <LibraryItem *> listD;
listD.append(folders);
listD.append(comics);
int lenghtS = listS.size();
int lenghtD = listD.size();
bool updated;
int i,j;
for (i=0,j=0; (i < lenghtS)||(j < lenghtD);)
{
if(stopRunning)
return;
updated = false;
if(i>=lenghtS) //finished source files/dirs
{
//delete listD //from j
for(;j<lenghtD;j++)
{
if(stopRunning)
return;
DBHelper::removeFromDB(listD.at(j),(_database));
}
updated = true;
}
if(j>=lenghtD) //finished library files/dirs
{
//create listS //from i
for(;i<lenghtS;i++)
{
if(stopRunning)
return;
QFileInfo fileInfoS = listS.at(i);
if(fileInfoS.isDir()) //create folder
{
#ifdef Q_OS_MAC
QStringList src = _source.split("/");
QString filePath = fileInfoS.absoluteFilePath();
QStringList fp = filePath.split("/");
for(int i = 0; i< src.count();i++)
{
fp.removeFirst();
}
QString path = "/" + fp.join("/");
#else
QString path = QDir::cleanPath(fileInfoS.absoluteFilePath()).remove(_source);
#endif
_currentPathFolders.append(Folder(fileInfoS.fileName(),path)); //folder actual no está en la BD
create(QDir(fileInfoS.absoluteFilePath()));
_currentPathFolders.pop_back();
}
else //create comic
{
#ifdef Q_OS_MAC
QStringList src = _source.split("/");
QString filePath = fileInfoS.absoluteFilePath();
QStringList fp = filePath.split("/");
for(int i = 0; i< src.count();i++)
{
fp.removeFirst();
}
QString path = "/" + fp.join("/");
#else
QString path = QDir::cleanPath(fileInfoS.absoluteFilePath()).remove(_source);
#endif
insertComic(path,fileInfoS);
}
}
updated = true;
}
if(!updated)
{
QFileInfo fileInfoS = listS.at(i);
LibraryItem * fileInfoD = listD.at(j);
QString nameS = QDir::cleanPath(fileInfoS.absoluteFilePath()).remove(QDir::cleanPath(fileInfoS.absolutePath())); //remove source
QString nameD = "/"+fileInfoD->name;
int comparation = QString::localeAwareCompare(nameS,nameD);
if(fileInfoS.isDir()&&fileInfoD->isDir())
if(comparation == 0)//same folder, update
{
_currentPathFolders.append(*static_cast<Folder *>(fileInfoD));//fileInfoD conoce su padre y su id
update(QDir(fileInfoS.absoluteFilePath()));
_currentPathFolders.pop_back();
i++;
j++;
}
else
if(comparation < 0) //nameS doesn't exist on DB
{
if(nameS!="/.yacreaderlibrary")
{
#ifdef Q_OS_MAC
QStringList src = _source.split("/");
QString filePath = fileInfoS.absoluteFilePath();
QStringList fp = filePath.split("/");
for(int i = 0; i< src.count();i++)
{
fp.removeFirst();
}
QString path = "/" + fp.join("/");
#else
QString path = QDir::cleanPath(fileInfoS.absoluteFilePath()).remove(_source);
#endif
_currentPathFolders.append(Folder(fileInfoS.fileName(),path));
create(QDir(fileInfoS.absoluteFilePath()));
_currentPathFolders.pop_back();
}
i++;
}
else //nameD no longer avaliable on Source folder...
{
if(nameS!="/.yacreaderlibrary")
{
DBHelper::removeFromDB(fileInfoD,_database);
j++;
}
else
i++; //skip library directory
}
else // one of them(or both) is a file
if(fileInfoS.isDir()) //this folder doesn't exist on library
{
if(nameS!="/.yacreaderlibrary") //skip .yacreaderlibrary folder
{
#ifdef Q_OS_MAC
QStringList src = _source.split("/");
QString filePath = fileInfoS.absoluteFilePath();
QStringList fp = filePath.split("/");
for(int i = 0; i< src.count();i++)
{
fp.removeFirst();
}
QString path = "/" + fp.join("/");
#else
QString path = QDir::cleanPath(fileInfoS.absoluteFilePath()).remove(_source);
#endif
_currentPathFolders.append(Folder(fileInfoS.fileName(),path));
create(QDir(fileInfoS.absoluteFilePath()));
_currentPathFolders.pop_back();
}
i++;
}
else
if(fileInfoD->isDir()) //delete this folder from library
{
DBHelper::removeFromDB(fileInfoD,_database);
j++;
}
else //both are files //BUG on windows (no case sensitive)
{
//nameD.remove(nameD.size()-4,4);
int comparation = QString::localeAwareCompare(nameS,nameD);
if(comparation < 0) //create new thumbnail
{
#ifdef Q_OS_MAC
QStringList src = _source.split("/");
QString filePath = fileInfoS.absoluteFilePath();
QStringList fp = filePath.split("/");
for(int i = 0; i< src.count();i++)
{
fp.removeFirst();
}
QString path = "/" + fp.join("/");
#else
QString path = QDir::cleanPath(fileInfoS.absoluteFilePath()).remove(_source);
#endif
insertComic(path,fileInfoS);
i++;
}
else
{
if(comparation > 0) //delete thumbnail
{
DBHelper::removeFromDB(fileInfoD,_database);
j++;
}
else //same file
{
if(fileInfoS.isFile() && !fileInfoD->isDir())
{
//TODO comprobar fechas + tamaño
//if(fileInfoS.lastModified()>fileInfoD.lastModified())
//{
// dirD.mkpath(_target+(QDir::cleanPath(fileInfoS.absolutePath()).remove(_source)));
// emit(coverExtracted(QDir::cleanPath(fileInfoS.absoluteFilePath()).remove(_source)));
// ThumbnailCreator tc(QDir::cleanPath(fileInfoS.absoluteFilePath()),_target+(QDir::cleanPath(fileInfoS.absoluteFilePath()).remove(_source))+".jpg");
// tc.create();
//}
}
i++;j++;
}
}
}
}
}
}
ThumbnailCreator::ThumbnailCreator(QString fileSource, QString target="", int coverPage)
:_fileSource(fileSource),_target(target),_numPages(0),_coverPage(coverPage)
{
}
void ThumbnailCreator::create()
{
QFileInfo fi(_fileSource);
if(!fi.exists()) //TODO: error file not found.
{
_cover.load(":/images/notCover.png");
return;
}
if(fi.suffix().compare("pdf",Qt::CaseInsensitive) == 0)
{
Poppler::Document * pdfComic = Poppler::Document::load(_fileSource);
if (!pdfComic)
{
delete pdfComic;
pdfComic = 0;
QImage p;
p.load(":/images/notCover.png");
p.save(_target);
return;
}
_numPages = pdfComic->numPages();
if(_numPages >= _coverPage)
{
QImage p = pdfComic->page(_coverPage-1)->renderToImage(72,72); //TODO check if the the page is valid
_cover = QPixmap::fromImage(p);
if(_target!="")
{
QImage scaled;
if(p.width()>p.height()) //landscape??
scaled = p.scaledToWidth(640,Qt::SmoothTransformation);
else
scaled = p.scaledToWidth(480,Qt::SmoothTransformation);
scaled.save(_target,0,75);
}
}
else if(_target!="")
{
QImage p;
p.load(":/images/notCover.png");
p.save(_target);
}
}
else
{
CompressedArchive archive(_fileSource);
//se filtran para obtener sólo los formatos soportados
QList<QString> order = archive.getFileNames();
QList<QString> fileNames = FileComic::filter(order);
_numPages = fileNames.size();
if(_numPages == 0)
{
_cover.load(":/images/notCover.png");
if(_target!="")
_cover.save(_target);
}
else
{
if(_coverPage > _numPages)
_coverPage = 1;
qSort(fileNames.begin(),fileNames.end(), naturalSortLessThanCI);
int index = order.indexOf(fileNames.at(_coverPage-1));
if(_target=="")
{
if(!_cover.loadFromData(archive.getRawDataAtIndex(index)))
_cover.load(":/images/notCover.png");
}
else
{
QImage p;
if(p.loadFromData(archive.getRawDataAtIndex(index)))
{
QImage scaled;
if(p.width()>p.height()) //landscape??
scaled = p.scaledToWidth(640,Qt::SmoothTransformation);
else
scaled = p.scaledToWidth(480,Qt::SmoothTransformation);
scaled.save(_target,0,75);
}
else
{
p.load(":/images/notCover.png");
p.save(_target);
}
}
}
}
}