BookingMapper.java

package ru.practicum.shareit.booking.dto;

import ru.practicum.shareit.booking.model.Booking;
import ru.practicum.shareit.item.model.Item;
import ru.practicum.shareit.user.model.User;

public class BookingMapper {
    public static BookingDto toBookingDto(Booking booking) {
        return new BookingDto(
                booking.getStart(),
                booking.getEnd(),
                booking.getItem() != null ? booking.getItem().getId() : null,
                booking.getBooker() != null ? booking.getBooker().getId() : null,
                booking.getStatus()
        );
    }

    public static Booking fromBookingDto(BookingDto bookingDto, Item item, User booker) {
        Booking booking = new Booking();
        booking.setStart(bookingDto.getStart());
        booking.setEnd(bookingDto.getEnd());
        booking.setItem(item);
        booking.setBooker(booker);
        booking.setStatus(bookingDto.getStatus());
        return booking;
    }
}