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#include "BackgroundWorker.h"
#include <LuminaXDG.h>
#include <QMediaServiceSupportedFormatsInterface>
#include <QImageReader>
#include <QDir>
#include <QFileInfo>
BackgroundWorker::BackgroundWorker() : QObject(){
}
BackgroundWorker::~BackgroundWorker(){
}
void BackgroundWorker::startDirChecks(QString path){
QDir dir(path);
//Make sure to remove any symlinks or redundency in the path
if(dir.canonicalPath()!=path){ path = dir.canonicalPath(); dir.cd(path); }
qDebug() << "Starting Dir Checks:" << path;
//First check for image files
if(imgFilter.isEmpty()){
//Initial Run - load supported image extensions
QList<QByteArray> fmt = QImageReader::supportedImageFormats();
for(int i=0; i<fmt.length(); i++){ imgFilter << "*."+QString(fmt[i]).toLower(); }
qDebug() << "Supported Image Formats:" << imgFilter;
}
QStringList pics = dir.entryList(imgFilter, QDir::Files | QDir::NoDotAndDotDot, QDir::Name | QDir::IgnoreCase);
if(!pics.isEmpty() && !imgFilter.isEmpty()){ emit ImagesAvailable(pics); }
//Now check for multimedia files
if(multiFilter.isEmpty()){
//Initial Run - load supported multimedia extensions
// (Auto-detection of supported types broken in Qt5 - just use everythings for now)
multiFilter = LXDG::findAVFileExtensions();
multiFilter.removeDuplicates();
qDebug() << "Supported Multimedia Formats:" << multiFilter;
}
QStringList files = dir.entryList(multiFilter, QDir::Files | QDir::NoDotAndDotDot, QDir::Name | QDir::IgnoreCase);
if(!files.isEmpty() && !multiFilter.isEmpty()){ emit MultimediaAvailable(files); }
qDebug() << " - done with audio/multimedia checks";
//Now check for ZFS snapshots of the directory
if(!QFileInfo(path).isWritable() ){ return; } //skip ZFS checks if can't restore to this dir
cdir = path;
QStringList snapDirs;
QString baseSnapDir;
bool found = false;
qDebug() << " - start searching for base snapshot directory";
if(cdir == path && QFile::exists(csnapdir) ){
//no need to re-search for it - just found it recently
baseSnapDir= csnapdir; found=true;
}else{
while(dir.canonicalPath()!="/" && !found){
if(dir.exists(".zfs/snapshot")){
baseSnapDir = dir.canonicalPath()+"/.zfs/snapshot";
found = true;
}else{ dir.cdUp(); }
}
}
qDebug() << " - done with base snapshot directory";
cdir = path; csnapdir = baseSnapDir;
//Now find the snapshots that contain this directory and save them
if(found){
qDebug() << " - start fetching snapshots";
QString reldir = path;
reldir.remove(baseSnapDir.section("/.zfs/snapshot",0,0)); //convert to a relative path
dir.cd(baseSnapDir);
snapDirs = dir.entryList(QDir::Dirs | QDir::NoDotAndDotDot, QDir::Time);
//Check that the current directory exists in each snapshot
for(int i=0; i<snapDirs.length(); i++){
if( !dir.exists(snapDirs[i]+"/"+reldir) ){
snapDirs.removeAt(i);
i--;
}else{
snapDirs[i] = QFileInfo(dir, snapDirs[i]+"/"+reldir).created().toString("yyyyMMddhhmmsszzz")+"::::"+snapDirs[i];
}
}
qDebug() << " - done fetching snapshots";
snapDirs.sort();
//Sort the snapshots by time (newest last) and format them
for(int i=0; i<snapDirs.length(); i++){
snapDirs[i] = dir.absolutePath()+"/"+snapDirs[i].section("::::",1,50)+"/"+reldir;
}
if(!snapDirs.isEmpty()){ emit SnapshotsAvailable(baseSnapDir, snapDirs); }
qDebug() << "Found snapshots";
}
}
void BackgroundWorker::createStatusBarMsg(QFileInfoList fileList, QString path, QString messageFolders, QString messageFiles){
//collect some statistics of dir and display them in statusbar
//Get the total size of the items
double totalSizes = 0;
int numberFolders = 0;
int numberFiles = 0;
for(int i=0; i<fileList.length(); i++){
if(!fileList[i].isDir()){
numberFiles++;
totalSizes += fileList[i].size(); //in Bytes
}
else { numberFolders++; }
}
//Convert the size into display units
static QStringList units = QStringList() << tr("B") << tr("KB") << tr("MB") << tr("GB") << tr("TB");
int cunit = 0;
while(cunit < units.length() && totalSizes > 1024){
cunit++;
totalSizes = totalSizes/1024;
}
//Assemble the message
QString msgStatusBar = QString(tr("%1: %2 / %3: %4")).arg(messageFolders).arg(numberFolders).arg(messageFiles).arg(numberFiles);
if(totalSizes > 0){
totalSizes = qRound(totalSizes*100)/100.0; //round to 2 decimel places
msgStatusBar += " "+QString(tr("Total size: %1 %2")).arg(QString::number(totalSizes), units[cunit]);
}
//If a path given, get the total capacity of it (percantage)
if (!path.isEmpty()) { //path could be empty when fileList is based on user's selection
QString capacity = LOS::FileSystemCapacity(path) ;
if (msgStatusBar.isEmpty()) msgStatusBar += QString(tr("Capacity: %1")).arg(capacity);
else msgStatusBar += " "+QString(tr("Capacity: %1")).arg(capacity);
}
//Emit the signal to show this on the UI
if (!msgStatusBar.isEmpty()){
emit Si_DisplayStatusBar(msgStatusBar);
}
}
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