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


main() {

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

  trans {
    persistent Author *a;
    persistent Paper  *new_paper;
    
    char pnumber[MAX];
    char title[MAX];
    char author_name[MAX];

    int aut_found = 0;      // flag to tell if an author found in db 


    // prompt for information to add paper
    cout << "     ADD PAPER\n";
    cout << "Enter the paper number: ";
    cin.getline(pnumber, MAX, '\n');
    cout << "Enter title: ";
    cin.getline(title, MAX, '\n');
    cout << "Enter name of corresponding author: ";
    cin.getline(author_name, MAX, '\n');


    //  If the author already exists, will create the new paper
    // and add it the the author's list of papers.
    //  If the author doesn' exist, a warning will come to the 
    // screen, but will still create the paper with the info given.

    for (a in Author) suchthat(strcmp(a->name,author_name)==0)  {
      aut_found = 1;
      new_paper = pnew Paper(pnumber, title, author_name);
      a->add_paper(new_paper);

      new_paper->add_author(a);
    } 

    if (!aut_found)  {
      cout << "Warning!, that corresponding author doesn't exist.\n";
      cout << "  Adding paper with the information given.\n";
      new_paper = pnew Paper(pnumber, title, author_name);   
    }

  } // close trans
}  // close main