Removing the need to alt-tab to the calculator
// ==UserScript==
// @name John Lewis show prices with staff discount
// @namespace http://tampermonkey.net/
// @version 0.1
// @description Removing the need to alt-tab to the calculator
// @author Bzly
// @license GNU GPLv3
// @match https://www.johnlewis.com/*/p*
// @icon data:image/svg+xml;utf-8,%3Csvg viewBox='0 0 144 92' xmlns='http://www.w3.org/2000/svg'%3E%3Cstyle%3E:root %7Bfill: %23000;%7D@media (prefers-color-scheme:dark)%7B:root %7Bfill: %23fff;%7D%7D%3C/style%3E%3Crect x='52' width='92' height='92'%3E%3C/rect%3E%3Crect x='33' width='13' height='92'%3E%3C/rect%3E%3Crect x='16' width='8' height='92'%3E%3C/rect%3E%3Crect width='4' height='92'%3E%3C/rect%3E%3C/svg%3E
// @grant none
// ==/UserScript==
/*jshint esversion: 6 */
/*jshint asi: true */
(function() {
'use strict';
const list = document.querySelectorAll('p.price:not(p.price-included-additional-services)')
const product_code = document.querySelector("p.product-code").textContent.replace("Product code: ", "")
const dissection = Number(product_code.slice(0,3))
const twelve_perc = [583,584,614,689,815,855,856,868,817,857,865,866,873,887,888,889,890,823,831,835,859,867,897,824,825,828,837,858,898,704,708,802,826,827,829,830,834,838,869,893,894,895,896,884,101,899]
const zero_perc = [860,861,833,519] //I think 813 and 519 are Apple/Android mobiles
if (document.querySelector('span.price__previous') === null) { // if reduced to clear, don't bother
list.forEach(e => { // they shouldn't be different prices, but hey, this is cheap
const price = Number(e.textContent.trim().replace("£", ""))
let discount = 0
let disc_symb = " 🛇"
if (twelve_perc.includes(dissection)) {
discount = 0.12
disc_symb = "⭣"
} else if (!zero_perc.includes(dissection)) {
discount = 0.25
disc_symb = "⮇"
}
e.textContent = Intl.NumberFormat('en-GB', {style: 'currency', currency:'GBP'}).format(price * (1 - discount)) + disc_symb
if (discount > 0) {
e.style.color = 'green'
e.textContent = e.textContent + " (was £" + price + ")"
} else {
e.style.color = 'red'
}
})
}
})();