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18C / Discussions

// ==UserScript==
// @name        Discussions
// @namespace   CCAU
// @description Automate course copies
// @match       https://*.instructure.com/courses/*/discussion_topics
// @version     0.2.0
// @author      18-carat
// @grant       none
// @license     GPL-3.0-or-later
// ==/UserScript==
"use strict";
(() => {
  // out/ccau.js
  function isAdmin() {
    const adminButton = document.querySelector("#global_nav_accounts_link");
    return adminButton ? true : false;
  }
  function getCourseID() {
    return window.location.href.match(/courses\/(\d+)/)?.[1] ?? "NO_COURSE_ID";
  }
  async function isLiveCourse() {
    const response = await fetch("https://se.instructure.com/api/v1/courses/" + getCourseID());
    const data = await response.json();
    if (!data.start_at) {
      return new Promise((resolve) => resolve(true));
    }
    return new Date(data.start_at) < /* @__PURE__ */ new Date();
  }
  async function ccauConfirm(msg) {
    return new Promise((resolve) => {
      const didConfirm = confirm("Are you sure you want to " + msg + "?");
      resolve(didConfirm);
    });
  }
  function observeDOM(element, callback) {
    const observer = new MutationObserver(callback);
    observer.observe(element, {
      childList: true
    });
    return observer;
  }
  function clickButton(sel) {
    const element = document.querySelector(sel);
    const button = element;
    button?.click();
  }

  // out/discussion.js
  async function deleteDiscussion() {
    if (!await ccauConfirm("delete all discussions")) {
      return;
    }
    Array.from(document.querySelectorAll(".discussions-index-manage-menu > span > button")).map((e) => e).forEach((b) => {
      b.click();
      setTimeout(() => clickButton("#delete-discussion-menu-option"), 250);
      setTimeout(() => clickButton("#confirm_delete_discussions"), 250);
    });
  }
  function addButton() {
    const slot = document.querySelector(".pinned-discussions-v2__wrapper");
    const button = document.createElement("a");
    button.id = "ccau_deleteDiscussion";
    button.textContent = "Delete All Discussions";
    button.classList.add("btn");
    button.setAttribute("tabindex", "0");
    button.addEventListener("click", deleteDiscussion);
    if (!slot || slot?.innerHTML.includes(button.id)) {
      return;
    }
    slot?.insertAdjacentElement("afterbegin", button);
  }

  // out/index.js
  async function main() {
    if (!isAdmin()) {
      throw new Error("Only admins can use CCAU");
    }
    if (await isLiveCourse()) {
      throw new Error("CCAU is disabled in live courses");
    }
    observeDOM(document.body, () => setTimeout(addButton, 1e3));
  }
  main();
})();