package com.sourceit.hw3;

import static java.util.Collections.*;

import java.util.Arrays;
import java.util.Comparator;
import java.util.function.Predicate;

/**
 * Created by tankomaz on 14.12.13.
 */
public class Lesson5 {
	public static void main(String[] args) {
		// create books
		// add books to array Book[] books
		Book[] books = {};

		// HOW TO SORT BY DIFFERENT CONDITIONS via COMPARATOR
		// print books sorted by author
		Book[] sortedBooksByAuthor =
				Book.sortBooks(books, (book1, book2) -> {
					return book1.getAuthor().compareToIgnoreCase(book2.getAuthor());
				});
//		printBooksToConsole(sortedBooksByAuthor);


		// ================ filter by author

		Book[] filteredBooksByAuthor = Arrays.stream(books)
			.filter((book) -> book.getAuthor().equals("Specific Author"))
			.toArray(Book[]::new);
//		printBooksToConsole(filteredBooksByAuthor);

		Book[] filteredBooksByAuthor2 =
				Book.filterBooks(books, (book) -> book.getAuthor().equals(""));
	}
}

class Book {


	int id;
	String title;
	String author;
	String publishingHouse;
	int dateOfRelease;
	int pages;
	int price;
	String binding;

	public static Book[] sortBooks(Book[] books, Comparator<Book> comparator) {
		Book[] resultBooks = Arrays.copyOf(books, books.length);
		Arrays.sort(resultBooks, comparator);
		return resultBooks;
	}

	public static Book[] filterBooks(Book[] books, Predicate<Book> predicate) {
		return Arrays.stream(books)
				.filter(predicate)
				.toArray(Book[]::new);
	}




	public String getAuthor() {
		return this.author;
	}

}