// Utilities for scraping data from the Lodestone

import {regExpEscape} from '../util/regexp.js';

/**
 * Creates a regular expression that matches a link to the database entry of the
 * given type and name, and captures its EDB ID from the matched link's `href`
 * attribute.
 * @param {'item' | 'quest'} type
 * @param {string} name
 * @returns {RegExp}
 */
const edbEntryLinkRegExp = (type, name) => new RegExp(`<a href="/lodestone/playguide/db/${regExpEscape(type)}/(?<id>[a-z0-9]+)[^"]+"[^>]*>(?<name>${regExpEscape(name)})</a>`, 'i');

/**
 * Gets the ID of the Eorzea Database entry with the given type and name.
 * @param {'item' | 'quest'} type
 * @param {string} name
 * @returns {Promise<string | null>}
 */
export async function findEDBEntryID (type, name) {
	// execute a search for the entry's name and type
	const searchURL = `https://na.finalfantasyxiv.com/lodestone/playguide/db/${type}/?q=${encodeURIComponent(name.replace(/\([^)]+\)|[&-]/g, ' '))}`;
	const response = await fetch(searchURL);
	const body = await response.text();
	// find an `<a>` in the HTML response whose text exactly matches the name
	const match = body.match(edbEntryLinkRegExp(type, name));
	// return the ID parsed from the URL in the `href` attribute
	return match?.groups.id;
}