package come;

public class Library {

    // Add the missing implementation to this class

    String realLocation;

    String[][] bookCollection = new String[2][10];

    int index = 0;

    public Library(String Location) {

        realLocation = Location;

    }

    static void printOpeningHours() {

        System.out.println("Libraries are open daily from 9am to 5pm.");

    }

    void printAddress() {

        System.out.println(realLocation);

    }

    void addBook(Book collection) {

        bookCollection[0][index] = collection.title;

        bookCollection[1][index] = "1";

        index++;

    }

    void borrowBook(String S) {

        int index1 = 0;

        while (!S.equals(bookCollection[0][index1])) {//越界的数字不能放在数组里面

            index1++;

            if(bookCollection[0].length == index1)

                break;

        }

        if (index1 == bookCollection[0].length) {

            System.out.println("Sorry, this book is not in our catalog.");

        } else if (bookCollection[1][index1] == "1") {

            System.out.println("You successfully borrowed The Lord of the Rings");

            bookCollection[1][index1] = "0";

        } else if (bookCollection[1][index1] == "0") {

            System.out.println("Sorry, this book is already borrowed.");

        }

    }

    void printAvailableBooks() {

        int index2 = 0;

        int flag = 0;

        while (true) {

            if (index2 == bookCollection[0].length){

                break;

            }

            if (bookCollection[1][index2] == "1"){

                flag = 1;

                System.out.println(bookCollection[0][index2]);}

            index2++;

        }

        if(flag == 0){

            System.out.println("no book in catalog");

        }

    }

    void returnBook(String bookName) {

        for (int i = 0; i < bookCollection[0].length; i++) {

            if (bookName.equals(bookCollection[0][i])) {

                bookCollection[1][i] = "1";

                break;

            }

        }

        System.out.println("You successfully returned The Lord of the Rings");

    }

    public static void main(String[] args) {

        // Create two libraries

        Library firstLibrary = new Library("10 Main St.");

        Library secondLibrary = new Library("228 Liberty St.");

        // set the array 0

        for (int i = 0; i < firstLibrary.bookCollection[0].length; i++) {

            firstLibrary.bookCollection[1][i] = "0";

            secondLibrary.bookCollection[1][i] = "0";

        }

        // Add four books to the first library

        firstLibrary.addBook(new Book("The Da Vinci Code"));

        firstLibrary.addBook(new Book("Le Petit Prince"));

        firstLibrary.addBook(new Book("A Tale of Two Cities"));

        firstLibrary.addBook(new Book("The Lord of the Rings"));

        // Print opening hours and the addresses

        System.out.println("Library hours:");

        printOpeningHours();

        System.out.println();

        System.out.println("Library addresses:");

        firstLibrary.printAddress();

        secondLibrary.printAddress();

        System.out.println();

        // Try to borrow The Lords of the Rings from both libraries

        System.out.println("Borrowing The Lord of the Rings:");

        firstLibrary.borrowBook("The Lord of the Rings");

        firstLibrary.borrowBook("The Lord of the Rings");

        secondLibrary.borrowBook("The Lord of the Rings");

        System.out.println();

        // Print the titles of all available books from both libraries

        System.out.println("Books available in the first library:");

        firstLibrary.printAvailableBooks();

        System.out.println();

        System.out.println("Books available in the second library:");

        secondLibrary.printAvailableBooks();

        System.out.println();

        // Return The Lords of the Rings to the first library

        System.out.println("Returning The Lord of the Rings:");

        firstLibrary.returnBook("The Lord of the Rings");

        System.out.println();

        // Print the titles of available from the first library

        System.out.println("Books available in the first library:");

        firstLibrary.printAvailableBooks();

    }

}