#pragma once

#ifndef BOOKINTHELIBRARY_H
#define BOOKINTHELIBRARY_H
#include <iostream>
#include <fstream>
#include "MyString.h"
#include <string>

using namespace std;

class BookInTheLibrary
{
private:
    // поля
    string author_;
    string title_;
    unsigned int publishingYear_;
    string discipline_;
    unsigned int numberOfCopies_;
public:
    // перегрузка оператора присваивания
    BookInTheLibrary& operator= (const BookInTheLibrary& ob);

    // перегрузка бинарных операторов
    BookInTheLibrary operator+ (unsigned int value);
    BookInTheLibrary operator- (unsigned int value);

    // перегрузка операторов отношения
    bool operator== (const BookInTheLibrary& ob) const;
    bool operator> (const BookInTheLibrary& ob) const;
    bool operator< (const BookInTheLibrary& ob) const;
    bool operator>= (const BookInTheLibrary& ob) const;
    bool operator<= (const BookInTheLibrary& ob) const;

    // перегрузка операторов инкремента/декремента
    BookInTheLibrary& operator++();
    BookInTheLibrary& operator--();

    // конструкторы/деструктор
    BookInTheLibrary();
    BookInTheLibrary(string author, string title, unsigned int publishingYear,
        string discipline, unsigned int numberOfCopies);
    BookInTheLibrary(unsigned int numberOfCopies);
    BookInTheLibrary(const BookInTheLibrary& ob);
    ~BookInTheLibrary();

    // перегрузка операторов ввода/вывода через дружественные функции
    friend ostream& operator<< (ostream& out, const BookInTheLibrary& ob);
    friend istream& operator>> (istream& in, BookInTheLibrary& ob);
};

#endif