点击sku后自动计算单价，并填充到sku中
// ==UserScript==
// @name 淘宝天猫商品选项计算单价
// @namespace leizingyiu.net
// @version 2022.09.27.1
// @description 点击sku后自动计算单价，并填充到sku中
// @icon https://img.alicdn.com/favicon.ico
// @author Leizingyiu
// @include *://item.taobao.com/*
// @include *://detail.tmall.com/*
// @run-at document-idle
// @grant none
// @license GNU AGPLv3
// ==/UserScript==
/* setting */
var specialPriceSelector = ['#J_PromoPriceNum.tb-rmb-num'
, '#J_PromoPrice.tm-promo-cur > dd > div.tm-promo-price > span.tm-price'].join(','),
// 淘宝优惠价： #J_PromoPriceNum.tb-rmb-num
// tm 优惠价： #J_PromoPrice.tm-promo-cur > dd > div.tm-promo-price > span.tm-price
originalPriceSelector = [' #J_StrPrice > em.tb-rmb-num ',
' #J_StrPriceModBox > dd > span.tm-price'].join(' , '),
// 淘宝原价: #J_StrPrice > em.tb-rmb-num
// tm 原价: #J_StrPriceModBox > dd > span.tm-price
skuSelector = '.tb-prop dd ul li a',
words = "包 条 个 袋 杯 枚 颗 罐 公斤 斤 两 盒 桶"
.split(/\s{1,}/)
.filter((a) => Boolean(a)),
wordsReg = new RegExp(
"\\d[\\d\\.]*s*(" +
(words.map((word) => `(${word})`).join("|") + ")\\s*(\\*\\d{1,})*"), 'g'
),
textReplaceReg = /(\([^\)]*\))|(\[[^\]]*\])|(「[^」]*」)|(（[^）]*）)/g,
priceReg = /\d[\d.]*\s*(?=元)/,
gramReg =
/\d[\d.]*\s*(([千克]{1,})|(((kg)|(KG)|(Kg)|(g)|(G)){1,}))\s*(\*\d{1,})*/,
volReg = /\d[\d.]*\s*(([毫升]{1,})|((L)|(ml)|(ML){1,}))\s*(\*\d{1,})*/;
loadingWaitTime = 1000;
activateGapTime = 500;
/* style */
let style = document.createElement('style');
style.innerText = `
.tb-prop li a:after , #detail .tb-key .tb-prop li:after {
content: attr(price);
display:content;
white-space: break-spaces;
line-height: 1.5em;
word-break: break-word;
}
.tb-prop li a , #detail .tb-key .tb-prop li {white-space:break-all;}
`;
document.body.appendChild(style);
/* main function */
function fn() {
let that = this;
setTimeout(
function () {
let priceBox = document.querySelector(specialPriceSelector) ? document.querySelector(specialPriceSelector) : document.querySelector(originalPriceSelector);
if (!priceBox) { console.error('很抱歉，找不到价格。请反馈本页面链接，谢谢。') }
let price = priceBox.innerText;
let unitprice = unitPrice(that.innerText, price);
that.setAttribute('price', '¥' + price + ' | ' + unitprice);
// that.removeEventListener('click', fn);
}, loadingWaitTime
);
}
/* addEventListener */
[...document.querySelectorAll(skuSelector)].map(li => {
console.log(li);
li.addEventListener('click', fn);
});
// /* activate */
// [...document.querySelectorAll(skuSelector)].map((li, idx) => {
// setTimeout(
// () => {
// li.click()
// },
// idx * loadingWaitTime + activateGapTime
// );
// });
function unitPrice(text, price) {
text = text.replace(textReplaceReg, "") || '',
price = price || 0;
if (text == '') { return false; }
var gram = text.match(gramReg),
vol = text.match(volReg);
var otherUnit = text.match(wordsReg);
var unit = "",
num = 0,
priceText = "",
priceKg,
priceL,
priceU;
if (price == null || (gram == null && vol == null && otherUnit == null)) {
priceText = "--";
} else {
price = Number(price);
if (gram != null) {
gram = Number(
eval(gram[0].replace(/[克gG]/g, "").replace(/[kK千]/, "*1000"))
);
priceKg = (price / gram) * 1000;
priceText += priceKg.toFixed(2) + "/kg";
}
if (vol != null) {
vol = Number(
eval(vol[0].replace(/[升lL]/g, "").replace(/[毫mM]/, "/1000"))
);
priceL = price / vol;
priceText = (gram != null ? " | " : "") + priceL.toFixed(2) + "/L";
}
console.log(price, text, gram, vol, priceText, otherUnit, wordsReg);
if (otherUnit != null) {
otherUnit.map(un => {
num = Number(un.match(/\d*/));
unit = un.replace(/\d*/, "");
priceU = price / num;
priceText += (priceText == '' ? '' : " | ") + priceU.toFixed(2) + "/" + unit;
if (unit == "斤") {
priceKg = (priceU * 2).toFixed(2)
priceText += " | " + priceKg + "/kg";
}
if (unit == "两") {
priceKg = (priceU * 20).toFixed(2);
priceText += " | " + priceKg + "/kg";
}
});
}
if (priceText == "") {
priceText += "___";
}
}
return priceText;
}