books.js

// Catalogue manager
function CatalogueManager() {
  // This is to store the books objs
  this.books = {};
  // The counter for assigning id to new books in our catalogue
  this.currentId = 1000;
};

// Assign AN id to a new book
CatalogueManager.prototype.assignId = function() {
  this.currentId += 1;
  return this.currentId;
}

// Adding a new book to the catalogue
CatalogueManager.prototype.addBook = function(book) {
  // Assign unique id to the book
  book.catalogId = this.assignId();

  // Store the book to our object
  this.books[book.catalogId] = book;

  // console.log(`[CATALOGUE] "${book.tittle} added to ID ${catalogId}"`);
}

// Find a book in the catalogue
CatalogueManager.prototype.findBook = function(id) {
  if(this.books[id] !== undefined) {
    return this.books[id];
  } 
  return false;
}

// Delete a book from our catalogue
CatalogueManager.prototype.deleteBook = function(id) {
  if(this.books[id] === undefined) {
    console.log(`[WARNING] Book with is ${id} not found in the inventory`);
    return false;
  } 
  // delete the propert 
  delete this.books[id];
  console.log(`[WARNING] Book with is ${id} removed from the inventory!`);
  return true;
}

// Book Logic
function Book(tittle, author, genre, isAvailable = true) {
  this.tittle = tittle;
  this.author =author;
  this.genre = genre;
  this.isAvailable = isAvailable;
  this.catalogId = null;
}

Book.prototype.getBookInfo = function() {
  return `"${this.tittle}" is written by ${this.author} and is of the genre ${this.genre}`;
}

// Initialize a catalogue
const kisumuBookCatalogue = new CatalogueManager();


const bookA = new Book("Dune", "Abraham Achemedes", "Fantasy", true);
const bookB = new Book("The martian", "Kingstone", "Drama", true);
const bookC = new Book("The big river", "James", "Action", true);
const bookD = new Book("Nairobi Lifestyle", "Simon", "Fantasy", false);

// Add new books to the kisumu Library
kisumuBookCatalogue.addBook(bookA);
kisumuBookCatalogue.addBook(bookB);
kisumuBookCatalogue.addBook(bookC);
kisumuBookCatalogue.addBook(bookD);


const fantasyBooks = kisumuBookCatalogue.findBook(1060);
console.log(fantasyBooks)

kisumuBookCatalogue.deleteBook(1002);

console.log(kisumuBookCatalogue);