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

Node module for sharing common middlewares.

var currencyMap = require('@tlrg/currencies-js');
var pickFirst = require('../../common/pickFirst');

module.exports = function (req) {
    var currency;

    var profile;
    try {
        profile = JSON.parse(req.cookies.LateroomsProfile || '{}');
    } catch (e) {
        profile = {};
    }

    var domains = {
        'laterooms.com.au': 'AUD'
    };

    var brands = {
        laterooms: 'GBP',
        'laterooms.com.au': 'AUD',
        asiarooms: 'USD'
    };

    currency = pickFirst(req.query.curr) ||
                pickFirst(req.query.cur) ||
                pickFirst(req.query.currency) ||
                pickFirst(req.query.currencies) ||
                profile.currencycode ||
                req.cookies.curr ||
                domains[req.moonstick.domain] ||
                brands[req.moonstick.brand] ||
                brands.laterooms;

    currency = currency.toUpperCase();

    if (currencyMap[currency]) {
        return currency;
    } else {
        return profile.currencycode || req.cookies.curr || brands[req.moonstick.brand];
    }

};