57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
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const timeout = (duration) => new Promise((r) => setTimeout(r, duration));
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const observePriceOnPage = (page) =>
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new Promise((res, rej) => {
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timeout(10000).then(() => rej(""));
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var observer = new MutationObserver(() => {
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const price = page
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.querySelector(".active-price")
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.querySelector("span").textContent;
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if (price) {
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observer.disconnect();
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res(price);
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}
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});
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observer.observe(page, {
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attributes: true,
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childList: true,
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characterData: true,
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subtree: true,
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});
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});
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const bookUrlForCountry = (country) => {
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const urlPattern = /^https:\/\/www\.kobo\.com\/../;
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const newPath = `https://www.kobo.com/${country}`;
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return window.location.href.replace(urlPattern, newPath);
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};
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export const getPriceForCountry = (country) =>
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new Promise((res) => {
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const url = bookUrlForCountry(country);
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l("going to", url);
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const iframe = document.createElement("iframe");
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iframe.src = url;
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iframe.hidden = true;
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document.body.append(iframe);
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iframe.contentWindow.onload = () => {
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l("starting observing price on", url);
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observePriceOnPage(iframe.contentDocument.body, url)
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.then(res)
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.catch(() => {
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l(`failed to find price for ${url}`);
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res("");
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})
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.finally(() => document.body.removeChild(iframe));
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};
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});
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