#include<iostream>
#include<cstring>

class Book {
private:
    char* author;
    char* title;
    float price;
    char* publisher;
    int stockPosition;

public:
    // Constructor to initialize member variables
    Book(const char* author, const char* title, float price, const char* publisher, int stockPosition) {
        this->author = new char[strlen(author) + 1];
        strcpy(this->author, author);

        this->title = new char[strlen(title) + 1];
        strcpy(this->title, title);

        this->price = price;

        this->publisher = new char[strlen(publisher) + 1];
        strcpy(this->publisher, publisher);

        this->stockPosition = stockPosition;
    }

    // Destructor to free memory
    ~Book() {
        delete[] author;
        delete[] title;
        delete[] publisher;
    }

    // Function to display book details
    void displayDetails() {
        std::cout << "Author: " << author << std::endl;
        std::cout << "Title: " << title << std::endl;
        std::cout << "Price: " << price << std::endl;
        std::cout << "Publisher: " << publisher << std::endl;
        std::cout << "Stock Position: " << stockPosition << std::endl;
    }

    // Function to check availability and calculate total cost
    void processOrder(int requestedCopies) {
        if (requestedCopies <= stockPosition) {
            std::cout << "Book is available. Enter the number of copies required: ";
            int copies;
            std::cin >> copies;

            if (copies <= stockPosition) {
                float totalCost = copies * price;
                std::cout << "Total cost for " << copies << " copies: " << totalCost << std::endl;
                stockPosition -= copies;
            } else {
                std::cout << "Required copies not in stock." << std::endl;
            }
        } else {
            std::cout << "Book is not available." << std::endl;
        }
    }
};

int main() {
    // Example usage
    Book book1("John Doe", "Sample Book", 19.99, "Sample Publisher", 50);

    // Display book details
    book1.displayDetails();

    // Process an order
    int requestedCopies;
    std::cout << "Enter the number of copies required: ";
    std::cin >> requestedCopies;

    book1.processOrder(requestedCopies);

    return 0;
}