#include <libxml/xmlmemory.h>

#include <libxml/xmlreader.h>

// returns 1 if completed successfully, 0 if not

// this reads a list of jobs in the queue before DistRen was shut down

// and then adds the jobs to the queue, as if it were never shut down

int createQueueFromXML(struct distrenjob *head)

{

  xmlChar *tmp2;

  xmlDocPtr doc;  // holds xml document in memory

  xmlNodePtr cur; // points to the current xml element node

  // load xml document

  doc = xmlParseFile("job_list.xml");

  if(doc == NULL)

    {

      fprintf(stderr, "createQueueFromXML: document not found\n");

      return 0;

    }

  // have cur point to the root element of the xml document pointed to by doc

  cur = xmlDocGetRootElement(doc);

  if(cur == NULL)

    {

      fprintf(stderr, "createQueueFromXML: document empty\n");

      return 0;

    }

  if(xmlStrcmp(cur->name, (const xmlChar*)"job_list"))

    {

      fprintf(stderr, "createQueueFromXML: incorrect root element (%s)", (char*)cur->name);

    }

  // moves into the children elements of job_list

  cur = cur->xmlChildrenNode;

  // scans the list of all jobs that were in queue before DistRen shutdown

  while(cur != NULL)

    {

      tmp2 = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);

      fprintf(stderr, "adding job: %s", tmp2);

      // add job from job number @TODO create function with parameters (struct distrenjob *head, int job_number)

      // LordOfWar calls dibs on above todo

      cur = cur->next; // go to next child element of job_list element

    }

  return 1;

}