middleware.js

const Listing = require("./models/listing");
const Review = require("./models/review");

module.exports.isLoggedIn = (req, res, next) => {
    console.log(req.user); // This logs the current user details to the console
    if (!req.isAuthenticated()) {
        req.session.redirectUrl = req.originalUrl; // Save the URL the user is trying to access
        req.flash("error", "You must be logged in to Add Listings");
        return res.redirect("/login"); // Redirect to login if not authenticated
    }
    next(); // Continue if the user is logged in
};

module.exports.saveRedirectUrl = (req, res, next) => {
    if (req.session.redirectUrl) {
        res.locals.redirectUrl = req.session.redirectUrl; // Make redirectUrl accessible in the views
    }
    next();
};

module.exports.isOwner = async (req, res, next) => {
    let { id } = req.params;
    let listing = await Listing.findById(id);
    if (!listing.owner._id.equals(res.locals.currUser._id)) {
        req.flash("error", "You do not have the permission to edit");
        return res.redirect(`/listings/${id}`);
    }
    next();
};

module.exports.isReviewAuthor = async (req, res, next) => {
    let { id, reviewId } = req.params;
    let review = await Review.findById(reviewId);
    if (!review.author._id.equals(res.locals.currUser._id)) {
        req.flash("error", "You are not the author of this review!");
        return res.redirect(`/listings/${id}`);
    }
    next();
};