Script to get all subjects of a USP student from jupiterweb

script.js

const puppeteer = require('puppeteer');
const credentials = require('./credentials.json');

(async () => {
  const browser = await puppeteer.launch({ headless: 'new' });
  const page = await browser.newPage();

  // go to login page and authenticate
  await page.goto('https://uspdigital.usp.br/jupiterweb/webLogin.jsp');

  await page.type('input[name="codpes"]', credentials.login);
  await page.type('input[name="senusu"]', credentials.password);

  await page.click('input[type="submit"]');

  // go to cronogram page and select program
  await page.waitForSelector('a[href="gradeHoraria?codmnu=4759"]');
  await page.click('a[href="gradeHoraria?codmnu=4759"]');

  await page.waitForSelector('option[value="1"]');

  await page.waitForSelector('#buscar');
  await page.click('#buscar');

  // get all subjects
  const days = ['seg', 'ter', 'qua', 'qui', 'sex'];
  const subjects = new Set();

  for (const day of days) {
    const selector = `[aria-describedby="tableGradeHoraria_${day}"]`;
    await page.waitForSelector(selector);

    const result = await page.evaluate(({ selector }) => {
      const classes = [...document.querySelectorAll(selector)];

      return classes.reduce((items, item) => {
        const content = item.textContent;

        if (!content) return items;
        return [...items, content.split('-')[0]];
      }, []);
    }, { selector });

    result.forEach((subject) => {
      subjects.add(subject);
    })
  }

  // go to subjects page to get complete name
  for (const subjectCode of subjects.keys()) {
    await page.goto(`https://uspdigital.usp.br/jupiterweb/obterDisciplina?sgldis=${subjectCode}`);

    const text = await page.evaluate(
      () => Array.from(document.querySelectorAll('.txt_arial_10pt_black'),
      (element) => element.textContent)
    );

    const subjectName = text[2].split(' - ')[1];
    console.log(`[${subjectCode}] ${subjectName}`);
  }

  await browser.close();
})();