Userscript to convert a walgreens digital receipt to a tab-separated-values document

Walgreens2TSV.user.js

// ==UserScript==
// @name        walgreens receipt -> tsv
// @namespace   https://github.com/coolreader18
// @author      coolreader18
// @match       https://www.walgreens.com/orderhistory/order/details-ui*
// @grant       GM_setClipboard
// @version     1.0
// @author      -
// @require     https://cdn.jsdelivr.net/npm/@violentmonkey/shortcut@1
// @description Convert a walgreens digital receipt to a tab-separated-values document
// ==/UserScript==

function getTSV() {
  const setter = "window.__APP_INITIAL_STATE__ =";
  const script = Array.from(
    document.querySelectorAll("script:not([src])"),
  ).find((s) => s.textContent.trim().startsWith(setter));
  const state = JSON.parse(
    script.textContent.trim().slice(setter.length).slice(0, -1),
  );
  const { order } = state.purchaseDetails;
  const date = order.purchaseDateObj.slice(0, "0000-00-00".length);
  const taxRate = (
    order.priceInfo.tax / order.priceInfo.itemSubTotal
  ).toPrecision(2);
  const tsv = order.items
    .map((item) => {
      const name = item.productInfo.baseInfo.displayName.trim();
      const qty = item.fulfillmentInfo.quantityPicked;
      const price = item.priceInfo.rawTotalSalePrice;
      return [date, "Walgreens", "", name, "", "", price, qty, `${taxRate * 100}%`].join("\t");
    })
    .join("\n");
  return tsv;
}

VM.shortcut.register("c-c", () => {
  try {
    const tsv = getTSV();
    GM_setClipboard(tsv);
    console.log(tsv);
  } catch (err) {
    console.error(err);
  }
});