const cheerio = require("cheerio");
const fetch = require("node-fetch");

async function parseTeachers() {
  const url = "https://spsejecna.cz/ucitel";
  const response = await fetch(url);
  const data = await response.text(); // fetch needs .text() to get HTML
  const $ = cheerio.load(data);

  const map = {};

  $("main .contentLeftColumn li, main .contentRightColumn li").each((_, el) => {
    const link = $(el).find("a");
    const href = link.attr("href"); // e.g. "/ucitel/PA"
    const text = link.text().trim(); // e.g. "Ing. Bc. Šárka Páltiková"

    if (href) {
      const key = href.split("/").pop().toLowerCase(); // get "pa"
      map[key] = text;
    }
  });

  return map;
}

module.exports = parseTeachers;