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#include <QtGui/QApplication>
#include "dialog.h"

#include <iostream>
#include <stdlib.h>
#include <QTranslator>
#include "save_restore_session.h"
#include "xsession.h"
#include "vsession.h"
#include "anyoption.h"
#include "globals.h"

#include <boost/filesystem.hpp>

namespace bfs=boost::filesystem;

using namespace std;

int main(int argc, char *argv[]) {
    QApplication a(argc, argv);

    QTranslator translator;
    translator.load(":" + QLocale::system().name());
    a.installTranslator(&translator);

  string version = "0.0.13";
  AnyOption* opt = new AnyOption();
  char* xmlpath = NULL;
  char* lsesspath = NULL;
  char* dsession = NULL;
  int width=0, height=0;

  //opt->setVerbose();
  opt->autoUsagePrint(false);

  opt->addUsage("");
  opt->addUsage("SessionChooser Usage: vmchooser [OPTS|image.xml]");
  opt->addUsage("\t{-d |--default=} name of session to select (part of)");
  opt->addUsage("\t{-p |--path=} path to vmware (.xml) files");
  opt->addUsage("\t{-l |--lpath=} path to linux session (.desktop) files");
  opt->addUsage("\t{-s |--size=} [widthxheight]");
  opt->addUsage("\t{-v |--version} print out version");
  opt->addUsage("\t{-h |--help} prints help");
  opt->addUsage("");
  opt->addUsage("Run with xml-file as additional argument to start image at once.");

  opt->setFlag("help",'h');
  opt->setFlag("version",'v');
  opt->setOption("default", 'd');
  opt->setOption("path", 'p');
  opt->setOption("lpath", 'l');
  opt->setOption("size",'s');

  opt->processCommandArgs(argc, argv);

  /** HELP  */
  if(opt->getFlag("help") || opt->getFlag('h')) {
    opt->printUsage();
    return 0;
  }

  /**
   * 	XML - PATH
   *
   *	1. read from stage3.conf
   *	2. option -p
   *	3. option --path
   *	4. default value "/var/lib/virt/vmware/"
   *
   **/

  ifstream ifs (
                  string(VMCHOOSER_ETC_BASE_PATH).append("vmchooser.conf").c_str(),
                  ifstream::in
          );
  if(ifs) {
          int n = 255;
          char buf[n];
          string s = "";
          while(!ifs.eof()) {
                  ifs.getline(buf, n);
                  s = buf;
                  if(s.substr(0,17) == "vmchooser_xmlpath") {
                          xmlpath = (char*)strdup(s.substr(19,s.length()-20).append("/").c_str());
                  }
          }

  }

  if(opt->getValue('d')!=NULL) {
    dsession = opt->getValue('d');
  }

  if(opt->getValue("default")!= NULL) {
        dsession = opt->getValue("default");
  }

  if(opt->getValue('p')!=NULL) {
    xmlpath = opt->getValue('p');
  }

  if(opt->getValue("path")!= NULL) {
    xmlpath = opt->getValue("path");
  }

  if (xmlpath == NULL) {
    // Default Path comes here
    xmlpath = (char *) VMCHOOSER_VMPATH;
  }

  /* VERSION  */
  if(opt->getFlag('v') || opt->getFlag("version")) {
    // just print out version information - helps testing
    cout << "virtual machine chooser " << version << endl;
    delete opt;
    return 0;

  }

  /** LINUX SESSION PATH */
  if(opt->getValue('l')!=NULL) {
    lsesspath = opt->getValue('l');
  }
  if(opt->getValue("lpath")!= NULL) {
    lsesspath = opt->getValue("lpath");
  }
  if (lsesspath == NULL) {
      // TODO: absolute paths as constants
    lsesspath = (char *) "/usr/share/xsessions/";
  }

  /** Size of Window */
  string size;
  unsigned int i;

  if(opt->getValue('s')!=NULL) {
    size = opt->getValue('s');
  }
  if(opt->getValue("size")!= NULL) {
    size = opt->getValue("size");
  }

  if (size.empty()) {
    width = 500;
    height = 550;
  }
  else {
    i = size.find_first_of("x");
    if (i == string::npos) {
      cerr << "Please write <width>x<height> as argument for -s|--size." << endl;
      return 1;
    }
    height = atoi(size.substr(i+1).c_str());
    width = atoi(size.substr(0, size.size()-i).c_str());
  }


  // additional xml argument -> start image directly
#if 0
  if(opt->getArgc() > 0) {
    string single_arg = opt->getArgv(0);
    if(bfs::is_directory(single_arg)) {
        fprintf(stderr, "Only argument is a folder, should be a valid xml file!\n");
        return 1;
    }
    // read xml image
    xmlDoc* doc = xmlReadFile(single_arg.c_str(), NULL, XML_PARSE_RECOVER);
    if (doc == NULL) {
      fprintf(stderr, "Error: could not parse file %s\n", single_arg.c_str());
      return 1;
    }

    DataEntry* result = get_entry(doc);
    if(result) {
        runImage(*result, single_arg );
    }
    else {
        fprintf(stderr, "Error: can not start image from xml\n\tcheck your <active> setting!\n");
        return 1;
    }
  }
#endif

  delete opt;

  /* read xml files */
  QList<Session*> xsessions(XSession::readSessions(lsesspath));
  QList<Session*> vsessions(VSession::readXmlDir(xmlpath));

  Dialog w;
  w.resize(width, height);

  w.addItems(xsessions, a.translate("Dialog", "X Sessions"));
  w.addItems(vsessions, a.translate("Dialog", "Virtual Sessions"));
  w.selectPreviousSession();
  w.show();
  return a.exec();
}