BI2

#include <iostream>
#include <fstream>
#include<string>
#include<sstream>
using namespace std;

class Date
{
private:
    int day;
    int month;
    int year;
public:
    //These are consturctors
    Date();
    Date(int, int, int);
    //Destructor
    ~Date() {}
    //void do not return values
    void setDay(int);
    void setMonth(int);
    void setYear(int);
    void showDate1();
    void showDate2();
};
Date::Date()
{
    //Initialize variables.
    day = 0, month = 0, year = 0;
}
Date::Date(int Day, int Month, int Year)
{
    day = Day;
    month = Month;
    year = Year;
}
void Date::setDay(int d)
{
    if (d < 1 && d > 31)
        cout << "The day is invalid" << endl;
    else
        day = d;
}
void Date::setMonth(int m)
{
    if (m < 1 && m > 12)
        cout << "The month is invalid" << endl;
    else
        month = m;
}
void Date::setYear(int y)
{
    if (y < 1950 && y > 2022)
        cout << "The year is invalid" << endl;
    else
        year = y;
}
void Date::showDate1()
{
    cout << day << " /" << month << " /" << year << endl;
}
void Date::showDate2()
{
    string monthName[] = { "January", "February", "March",
        "April", "May", "June", "July",
        "August", "September", "October",
        "November", "December" };
    cout << day << "  " << monthName[month - 1] << "  " << year << endl;
}

class Books :public Date
{
private:
    string book_name;
    string autor;
    int next_edition;
    int isbn_number;
    int circulation;

public:
    Books();
    Books(string, string, int, int, int);
    ~Books() { }
    void setBookName(string);
    void setAutorName(string);
    void setNextEdition(int);
    void setIsbnNumber(int);
    void setBookCirculation(int);
};
Books::Books() {
    book_name = "", autor = "";
    next_edition = 0, isbn_number = 0, circulation = 0;
}
Books::Books(string bookName, string autorName, int nextEditon, int isbnNumber, int bookCirculation)
{
    book_name = bookName;
    autor = autorName;
    next_edition = nextEditon;
    isbn_number = isbnNumber;
    circulation = bookCirculation;
}
void Books::setBookName(string bookName) {
    cout << "Enter book's name: " << endl;
    getline(cin, bookName);
    cout << endl;
}
void Books::setAutorName(string autor)
{
    cout << "Enter autor name: " << endl;
    getline(cin, autor);
    cout << endl;
}

void Books::setNextEdition(int edition)
{
    cout << "Enter next edition: " << endl;
    cin >> edition;
    cout << endl;
}

void Books::setIsbnNumber(int isbn_num)
{
    cout << "Enter ISBN number: " << endl;
    cin >> isbn_num;
    cout << endl;
}

void Books::setBookCirculation(int circ)
{
    cout << "Enter circulation: " << endl;
    cin >> circ;
    cout << endl;
}


class Bookseller:public Books
{
private:
    string name_bookseller;
    string address_bookseller;
    int phone_bookseller;

public:

    Bookseller();
    Bookseller(string name, string address, int phone);
    ~Bookseller () { }
    void setBookseller(string);
    void setAddress(string);
    void setPhone(int);
};

Bookseller::Bookseller() {
    name_bookseller = "";
    address_bookseller= "";
    phone_bookseller = 0;
}
Bookseller::Bookseller(string name, string address, int phone)
{
    name_bookseller = name;
    address_bookseller = address;
    phone_bookseller = phone;
}
void Bookseller::setBookseller(string name)
{
    cout << "Enter bookseller name: " << endl;
    getline(cin, name);
    cout << endl;
}
void Bookseller::setAddress(string address)
{
    cout << "Enter address: " << endl;
    getline(cin, address);
    cout << endl;
}
void Bookseller::setPhone(int phone)
{
    cout << "Enter next edition: " << endl;
    cin >> phone;
    cout << endl;
}

int main()
{
    string end;
    Books b;
    Bookseller bs;
    ofstream BookInfo;
    // Write to the file
    BookInfo.open("BookInfo.txt");
    while(end != "end")
     {
        b.setBookName("" "");
        b.setAutorName("" "");
        b.setNextEdition(0);
        b.setIsbnNumber(0);
        cout << "Entet date DD/MM/YY: ";
        int Month, Day, Year;
        cin >> Day >> Month >> Year;
        cout << endl;
        Date newDate(Day, Month, Year);
        newDate.showDate2();
        cin.get();
        cout << endl;
        b.setBookCirculation(0);
        bs.setBookseller("");
        bs.setAddress("");
        bs.setPhone(0);

        string agree;
        cin >> agree;
        if (agree == "yes") {
            cout << "This book has certificate";

            cout << "Entet date DD/MM/YY: ";
            int Month, Day, Year;
            cin >> Day >> Month >> Year;
            cout << endl;
            Date newDate(Day, Month, Year);
            newDate.showDate2();
            cin.get();
            cout << endl;
        }
        else
        {
            cout << "This book hasn't certificate";
        }
    }
    // Close the file
    BookInfo.close();
}