text: const { campgroundSchema, reviewSchema } = require('./schemas.js');
  const ExpressError = require('./utils/ExpressError');
  const Campground = require('./models/campground');
  const Review = require('./models/review');
  
  
  //Joi Campground MIDDLEWARE
  module.exports.validateCampground = (req, res, next) => {
    const { error } = campgroundSchema.validate(req.body);
    if(error){
      const msg = error.details.map(el => el.message).join(',')
      throw new ExpressError(msg, 400)
    } else {
      next();
    }
  };
  
  //Joi Review MIDDLEWARE
  module.exports.validateReview = (req, res, next) => {
    const { error } = reviewSchema.validate(req.body);
    if(error){
      const msg = error.details.map(el => el.message).join(',')
      throw new ExpressError(msg, 400)
    } else {
      next();
    }
  };
  
  // Login authentication MIDDLEWARE
  module.exports.isLoggedIn = (req, res, next) => {
    // console.log("REQ.USER...", req.user);
    if(!req.isAuthenticated()) {
    //   req.session.returnTo = req.originalUrl;
      req.flash('error', 'you must be signed in');
      return res.redirect('/login'); //must return this otherwise next line runs and sends error to console
    }
    next();
  };
  
  //MIDDLEWARE --> isAuthor
  module.exports.isAuthor = async (req, res, next) => {
  const { id } = req.params;
  const campground = await Campground.findById(id);
  if(!campground.author.equals(req.user._id)) {
    req.flash('error', 'You do not have permission to do that');
    return res.redirect(`/campgrounds/${id}`); 
  }
  next();
  };
  
  //MIDDLEWARE --> isReviewAuthor
  module.exports.isReviewAuthor = async (req, res, next) => {
    const { id, reviewId } = req.params;
    const review = await Review.findById(reviewId);
    if(!review.author.equals(req.user._id)) {
      req.flash('error', 'You do not have permission to do that');
      return res.redirect(`/campgrounds/${id}`); 
    }
    next();
  };
  
  
  
    