@tlrg/middleware-js/lib/middlewares/meta/index.js

Node module for sharing common middlewares.

var moment = require('moment');
var currency = require('./currency');
var _ = require('lodash');
var mobileOnly = require('./mobileOnly');

function sanitizeDate(incomingStartDate) {
    var today = moment().startOf('day');
    var startDate = moment(incomingStartDate || today, ['YYYYMMDD', 'YYYY-MM-DD']);
    var oneYearInTheFuture = moment().add(364, 'days');

    if (!startDate.isValid()) {
        return today;
    }

    if (startDate.isBefore(today)) {
        return today;
    }

    if (startDate.isAfter(oneYearInTheFuture)) {
        return today;
    }

    return startDate;
}

module.exports = function (req, res, next) {
    var lrSearchCookie = {};

    try {
        lrSearchCookie = JSON.parse(req.cookies.search);
    } catch (_) {}

    var incomingStartDate = req.query.d || req.cookies.arrivalDate || lrSearchCookie.Date;

    var nights = parseInt(req.query.n) || parseInt(lrSearchCookie.Nights) || 1;
    if (nights < 1) {
        nights = 1;
    }
    if (nights > 28) {
        nights = 28;
    }

    var startDate = sanitizeDate(incomingStartDate);
    var departureDate = req.query.dd || req.cookies.departureDate;

    if (departureDate) {
        var departureDateAsMoment = moment(departureDate, ['YYYYMMDD', 'YYYY-MM-DD']);
        nights = departureDateAsMoment.diff(startDate, 'days');
    }

    var queryRt = req.query.rt;

    if (Array.isArray(queryRt)) {
        queryRt = queryRt[0];
    }

    var rt = (queryRt || '').split('-');

    var adults = rt[0] || req.query['rt-adult'] || req.cookies.numberOfAdults || lrSearchCookie.Adults || 2;
    var children = rt[1] || req.query['rt-child'] || req.cookies.numberOfChildren || lrSearchCookie.Children || 0;

    adults = parseInt(adults, 10) || 2;
    children = parseInt(children, 10) || 0;

    if (adults > 8) {
        adults = 8;
    }

    if (children > 3) {
        children = 3;
    }

    var formats = {
        laterooms: 'YYYYMMDD',
        asiarooms: 'YYYY-MM-DD'
    };

    req.moonstick.meta = {
        destination: _.escape(req.query.parsedSearch || req.query.k || lrSearchCookie.Destination || ''),
        date: startDate,
        nights: nights,
        departureDate: startDate.clone().add(nights, 'days').startOf('day'),
        adults: adults,
        children: children,
        guests: adults + children,
        rt: adults + '-' + children,
        format: formats[req.moonstick.brand] || 'YYYYMMDD',
        currency: currency(req),
        isLoggedIn: Boolean(req.user && req.cookies['moomin-cmid']),
        mobileOnly: mobileOnly(req)
    };

    next();
};