const mongoose = require('mongoose');
const Reservation = require('../models/reservation');
const Book = require('../models/book');
const BookController = require('../controllers/books');

exports.reservations_create_reservation =  (req, res, next) => {
    Book.findById(req.body.bookId)
    .then(book=>{
        if(!book){
            return res.status(404).json({
                message: "Book not found"
            });
        }
        if(book.isHired == 1){
            return res.status(439).json({
                message: "Book is already reserved"
            });
        }
        Book.findOneAndUpdate({_id: req.body._id},{$set:{isHired: 1}})
        .exec()
        .then(r=>{
            const reservation = new Reservation({
                _id: mongoose.Types.ObjectId(),
                quantity: req.body.quantity,
                book: req.body.bookId
            });
            reservation.save().then(n=>{
                res.status(201).json({
                    message: 'Reservation stored',
                    createdReservatrion:{
                        _id: result._id,
                        book: result.book,
                        quantity: result.quantity
                    },
                    request: {
                        type: 'GET',
                        url: 'http://localhost:3000/reservations/' + result._id
                    }
                });
            });
        });
    })
    .catch(err => {
    console.log(err);
    res.status(500).json({
        error: err
    });
    });
}