// Lecture 3 
// CS U213 Fall 2008
// bookstore4.java
/*
;; A Book is (make-book String Author Num Symbol)
;; There are three kinds of books: fiction, nonfiction, textbook
;; represented by symbols 'F 'N 'T
(define-struct book (title author price kind))

;; An Author is (make-author String Num)
(define-struct author (name yob))

;; Examples of authors
(define eh (make-author "Hemingway" 1900))
(define ebw (make-author "White" 1920))
(define mf (make-author "MF" 1970))

;; Examples of books
(define oms (make-book "Old Man and the Sea" eh 10 'F))
(define eos (make-book "Elements of Style" ebw 20 'N))
(define htdp (make-book "HtDP" mf 60 'T))
*/

/*
 +---------------+
 | Book          |
 +---------------+
 | String title  |
 | Author author |--+
 | int price     |  |
 | char kind     |  |
 +---------------+  |
                    v
             +-------------+
             | Author      |
             +-------------+
             | String name |
             | int yob     |
             +-------------+
*/

// to represent a book in a bookstore
class Book{
  String title;
  Author author;
  int price;
  char kind;
  
  Book(String title, Author author, int price, char kind){
    this.title = title;
    this.author = author;
    this.price = price;
    this.kind = kind;    
  }
}

class Author{
  String name;
  int yob;
  
  Author(String name, int yob){
    this.name = name;
    this.yob = yob;
  }
}

interface ILoB{}

class MtLoB implements ILoB{
  MtLoB(){}
}

class ConsLoB implements ILoB{
  Book first;
  ILoB rest;
  
  ConsLoB(Book first, ILoB rest){
    this.first = first;
    this.rest = rest;
  }
}

class Examples{
  Examples(){}
  
  Author eh = new Author("Hemingway", 1900);
  Author ebw = new Author("White", 1920);
  Author mf = new Author("MF", 1970);

  Book oms = new Book("Old Man and the Sea", this.eh, 10, 'F');
  Book eos = new Book("Elements of Style", this.ebw, 20, 'N');
  Book htdp = new Book("HtDP", this.mf, 60, 'T');
  
  ILoB mtlob = new MtLoB();
  ILoB blist2 = new ConsLoB(this.oms, new ConsLoB(this.eos, this.mtlob));
  ILoB blist3 = new ConsLoB(this.htdp, this.blist2);
  
}