section_adder.js

// The addSections function takes in a JS object containing info about which sections to add to which students.
//   it doesn't have any logic to check the current status of assigned sections, so if you run this multiple times,
//   I'm not sure what will happen.

function findEl(cssSelector, innerHTML) { 
  return Array.prototype.filter.call(
    document.querySelectorAll(cssSelector), 
    x => {return x.innerHTML.includes(innerHTML);}
    ); 
}

function peopleRows() {
  return Array.from(document.querySelectorAll('.rosterUser'));
}

function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

async function openSectionAdder(userID) {
    findEl("td",userID)[0].parentNode.children[8].children[0].children[0].click();
    await sleep(2000);
    findEl("td",userID)[0].parentNode.children[8].children[0].children[1].children[2].children[0].click();
}

async function addSection(Section) {
    document.querySelector('.browser').click();
    await sleep(5000);
    try {
    	findEl("b",Section)[0].parentNode.parentNode.parentNode.click(); }
    catch(e) {}
}

async function closeSectionAdder() {
    document.querySelector("button.btn-primary").click();
}

async function addSections(allSections) {
    for (const user in allSections) {
        await openSectionAdder(user);
        await sleep(2000);
        for (const section of allSections[user]) {
            await addSection(section);  
            await sleep(2000);
        }
        await closeSectionAdder();
        await sleep(2000);
    }
}