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#include "inc/DataEntry.h"
#include "inc/functions.h"
#include <cstdlib>
#include <cstring>
#include <string>
#include <iostream>
#include <fstream>
#include<boost/filesystem/operations.hpp>
namespace bfs=boost::filesystem;
using namespace std;
/**
* @function saveSession: Saves chosen session to prechoose this session next time.
*
* @param dat: Pointer to the wanted Image/Linux Session
* @return void
*
*/
void saveSession(DataEntry* dat) {
// get home folder
char* home = getenv("HOME");
if(home == NULL) {
cout << "HOME is not set. Not storing session." << endl;
return;
}
// build path
string fname = home;
string shome = home;
fname.append("/.openslx/vmchooser");
if(!bfs::exists(fname) ) {
if(!bfs::exists(shome.append("/.openslx")) ) {
bfs::create_directory(shome);
}
}
// write file with ofstream
ofstream fout(fname.c_str(),ios::trunc); // overwrite file
fout << dat->short_description << endl;
}
/**
* @function readSession: Read predefined session from users home folder
*
* @return: if not found, return null, else description for Image XML/ Linux .desktop file
*/
char* readSession() {
// read HOME variable
char* home = getenv("HOME");
if(home==NULL) {
cout << "HOME is not set. Not reading session." << endl;
return NULL;
}
// build file name
string fname = home;
fname.append("/.openslx/vmchooser");
// read presaved session with ifstream
if(!bfs::exists(fname)) {
return NULL;
}
ifstream fin(fname.c_str());
if (!fin) {
cout << "some error occured reading file!" << endl;
return NULL;
}
string sessname;
getline(fin,sessname);
char* blub = strdup(sessname.c_str());
if(!sessname.empty()) {
return blub;
}
else {
free(blub);
return NULL;
}
}
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