#include "picture.h"
Picture::Picture(QWidget *parent) :
  QMainWindow(parent),
  ui(new Ui::Picture){
    ui->setupUi(this);
    connect(ui->actionOpen_Files,SIGNAL(triggered()),this,SLOT(changeDirectory()));
    //changeDirectory();
    fillList();
  }
std::string exec(char* cmd) {
  FILE* pipe = popen(cmd, "r");
  if (!pipe) return "ERROR";
  char buffer[128];
  std::string result = "";
  while(!feof(pipe)) {
    if(fgets(buffer, 128, pipe) != NULL){
      result += buffer;
    }
  }
  pclose(pipe);
  return result;
}
Picture::~Picture(){
  delete ui;
}
void Picture::changeDirectory(){
  QString path=QFileDialog::getExistingDirectory(this,tr("Directory"),directory.path());
  if(path.isNull()==false){
    directory.setPath(path);
    fillList();
    ui->log->append("Changed directory to: "+path+"/");
  }else{
    ui->log->append("Could not change directory");
  }
}
void Picture::fillList() {
  ui->fileList->clear();
  //ui->fileList->addItems(directory.entryList());
  foreach(const QString &str,directory.entryList()){
      QImageReader reader(directory.absolutePath()+"/"+str);
      if(!reader.format().isEmpty()){
        ui->fileList->addItem(str);
      }
  }
  if(ui->fileList->count()==0){
      ui->fileList->addItem("<NO PICTURES>");
  }
}
void Picture::on_cd_clicked(){
  changeDirectory();
}
void Picture::on_erase_clicked(){
  bool ignored=false;
  foreach(const QString &str,directory.entryList()){
    QString tmp=QString("exiv2 rm ");
    QImageReader reader(directory.absolutePath()+"/"+str);
    if(!reader.format().isEmpty()){
      tmp+=directory.absolutePath()+"/"+str+">>/tmp/log";
      std::string tmp2=tmp.toStdString();
      char* a=new char[tmp2.size()+1];
      a[tmp2.size()]=0;
      memcpy(a,tmp2.c_str(),tmp2.size());
      exec(a);
    }else{
      if(!ignored){
        ignored=true;
        ui->log->append("Ignored Files:");
      }
      ui->log->append(str);
    }
  }
  ui->log->append("Done erasing metadata");
}
void Picture::on_refresh_clicked(){
  fillList();
}
void Picture::on_clearLog_clicked(){
  ui->log->setText("");
}
void Picture::on_erase_pressed(){
  ui->log->append("Erasing metadata from images...");
}