#include "picture.h"
#include "ui_picture.h"
#include <syscall.h>
#include <string>
#include <iostream>
#include <stdio.h>
#include <QDebug>
#include <QImageReader>

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();
  }
  //exec("which exiv2>>/tmp/log");
}

void Picture::fillList() {
  ui->fileList->clear();
  ui->fileList->addItems(directory.entryList());
}

void Picture::on_cd_clicked(){
  changeDirectory();
}

void Picture::on_erase_clicked(){
  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{
        tmp="echo "+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);
    }
  }
}

void Picture::on_refresh_clicked(){
  fillList();
}