code-sensei/sensei-grading-bookmarklet/app.js

// https://gist.github.com/EthanThatOneKid/95e8393c0afc1a35efda6f514d4ee6ea

const selectors = {
  incompleteBtn: "#IsIncompleteYes",
  notesTextarea:
    "#gradingNode > div > div:nth-child(1) > table > tbody > tr:nth-child(8) > td:nth-child(2) > textarea",
  star1:
    "#gradingNode > div > div:nth-child(1) > table > tbody > tr:nth-child(7) > td:nth-child(2) > span.pull-left.ml-3.mt-1.stars > i:nth-child(1)",
  star2:
    "#gradingNode > div > div:nth-child(1) > table > tbody > tr:nth-child(7) > td:nth-child(2) > span.pull-left.ml-3.mt-1.stars > i:nth-child(2)",
  star3:
    "#gradingNode > div > div:nth-child(1) > table > tbody > tr:nth-child(7) > td:nth-child(2) > span.pull-left.ml-3.mt-1.stars > i:nth-child(3)",
  submit: "#grade-form > button",
  previewContainer: "#gradingNode > div > div:nth-child(2)",
  assignmentBtn:
    "body > div.body-content > div:nth-child(2) > div:nth-child(3) > table > tbody > tr > td:nth-child(7) > a",
  assignmentLink: "#gradingNode > div > div:nth-child(2) > div > a",
};

let currentAssignmentOnPage = 0;

const defaultIdleTimeout = 5e3,
  assignmentLoadDelay = 1e3;

const setIdleTimeout = (...args) => {
  let timeoutId = setTimeout(...args);
  const alertUserAction = () => {
    clearTimeout(timeoutId);
    timeoutId = setTimeout(...args);
  };
  return alertUserAction;
};

const actions = {
  incomplete() {
    // Sensei declares game incomplete.
    document.querySelector(selectors.incompleteBtn).click();
    const textarea = document.querySelector(selectors.notesTextarea);
    textarea.focus();
    const updateTextarea = setIdleTimeout(
      () => document.querySelector(selectors.submit).focus(),
      defaultIdleTimeout
    );
    textarea.addEventListener("keypress", updateTextarea);
  },
  rate(stars) {
    // Sensei gives a rating out of 3 stars.
    const selectorKey = `star${stars}`;
    if (selectorKey in selectors) {
      document.querySelector(selectors[selectorKey]).click();
      this.submit();
    }
  },
  submit() {
    document.querySelector(selectors.submit).click();
    currentAssignmentOnPage++;
    this.nextAssignment();
  },
  nextAssignment() {
    document
      .querySelectorAll(selectors.assignmentBtn)
      [currentAssignmentOnPage].click();
    setTimeout(() => {
      const preview = document.createElement("iframe");
      preview.width = "1600px";
      preview.height = "1400px";
      preview.src = document.querySelector(selectors.assignmentLink).href;
      document.querySelector(selectors.previewContainer).innerHTML = "";
      document.querySelector(selectors.previewContainer).appendChild(preview);
      document
        .querySelector(selectors.previewContainer)
        .parentElement.scrollIntoView();
    }, assignmentLoadDelay);
  },
};

document.addEventListener("keypress", (event) => {
  try {
    switch (event.key) {
      case "i":
        actions.incomplete();
        break;

      case "1":
        actions.rate(1);
        break;

      case "2":
        actions.rate(2);
        break;

      case "3":
        actions.rate(3);
        break;

      case "enter":
        actions.submit();
        break;

      default:
        break;
    }
  } catch (error) {
    console.log(`Sensei Error: ${error}`);
  }
});

const main = () => {
  actions.nextAssignment();
};

main();