#include <ode.h>
#include "biblio.h"


main()  {

  persistent Author *a;
  persistent Author *author_to_add;
  persistent Paper *p;
  persistent Paper *the_paper;    // the paper to which author will be added
  char name[MAX];
  char pnum[MAX];
  

  database *db;
  if ((db = database::open(DBNAME)) == NULL) {
    cout << "cannot open database " << DBNAME << endl;
    exit(1);
  }

  trans {
    cout << "     ADD AUTHOR TO PAPER\n";
    
    ///// get the author name
    ////////////////////////
    cout << "Enter the Author name: ";
    cin.getline(name, MAX, '\n');

    // check to see if the name entered is in database
    // if the author was not found, bail.
    for (a in Author) suchthat(strcmp(a->name, name)==0)  {
      author_to_add = a;
    }
    if ( !author_to_add)  {
      cout << "Sorry.  Was unable to locate that author.\n";
      exit(1);
    }


    ///// get the paper number
    //////////////////////////
    cout << "Enter the Paper Number: ";
    cin.getline(pnum, MAX, '\n');

    // check to see if the pnumber for paper is in database
    // if unable to find paper, exit.
    for (p in Paper) suchthat(strcmp(p->pnumber, pnum)==0)  {
      the_paper = p;
    }
    if ( !the_paper)  {
      cout << "Sorry.  Was unable to locate that paper.\n";
      exit(1);
    }

    ///// now add the author in question to the paper.
    
    the_paper->add_author(author_to_add);
    
    // add paper to the author paper list, if not there already.
    if ( ! ((author_to_add->papers).contains(the_paper)) )  {
      author_to_add->add_paper(the_paper);
    }

  }

}