#include <iostream>
#include <string>

// YOUR CODE HERE: 6 classes !


int main()
{
  Written_Text* text[4];
  int n = 0;

  // Some things that should give compilation error
//  new Hardback("Novik", "Temeraire", "sewn");
//  new Book("Rowling", "Potter");
//  new Paperback();
//  new Textfile("Meyer");


  text[n++] = new Book("Novik", "Temeraire", "sewn");
  text[n++] = new Hardback("Rowling", "Potter");
  text[n++] = new Paperback("Paolini", "Eragon");
  text[n++] = new Magazine("Times company", "NY Times Magazine");
  text[n++] = new Textfile("Meyer", "Midnight Sun", "PDF");

  for (int i = 0; i < n; ++i)
  {
    std::cout << *text[i] << std::endl;
  }
  
  for (int i = 0; i < n; ++i)
  {
    const Written_Text* index = text[i];
    std::cout << index->getTitle() << ", " << index->getAuthor();
    const Book* b = dynamic_cast<const Book*>(index);
    if ( b != 0 )
      std::cout << ", " << b->getBinding();
    const Textfile* t = dynamic_cast<const Textfile*>(index);
    if ( t != 0 )
      std::cout << ", " << t->getFormat();
    std::cout << std::endl;
  }
  
  for (int i = 0; i < n; ++i)
  {
    delete text[i];
    text[i] = 0;
  }
  return 0;
}