32 lines
1.2 KiB
JavaScript
32 lines
1.2 KiB
JavaScript
// Utilities for scraping data from the Lodestone
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/**
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* @see https://stackoverflow.com/a/6969486
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* @param {string}
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* @returns {string}
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*/
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const regExpEscape = str => str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
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/**
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* Creates a regular expression that matches a link to the named item and
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* captures its EDB ID from the matched link's `href` attribute.
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* @param {string} name
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* @returns {RegExp}
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*/
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const itemLinkRegExp = name => new RegExp(`<a href="/lodestone/playguide/db/item/(?<id>[a-z0-9]+)[^"]+"[^>]*>(?<name>${regExpEscape(name)})</a>`, 'i');
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/**
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* Gets the ID of the named item in Eorzea Database.
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* @param {string} name
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* @returns {Promise<string | null>}
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*/
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export async function findItemEDBID (name) {
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// execute a search for the item's name
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const searchURL = `https://na.finalfantasyxiv.com/lodestone/playguide/db/item/?q=${encodeURIComponent(name.replace(/\([^)]+\)|[&-]/g, ' '))}`;
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const response = await fetch(searchURL);
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const body = await response.text();
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// find an `<a>` in the HTML response whose text exactly matches the name
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const match = body.match(itemLinkRegExp(name));
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// return the ID parsed from the URL in the `href` attribute
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return match?.groups.id;
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}
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