polbanter

// ==UserScript==
// @name        polremover
// @namespace
// @match       https://boards.4chan.org/bant/catalog
// @grant       none
// @version     1.0
// @run-at      document-idle
// @author      Anonymous
// @description Hide all threads moved from /pol/ on /bant/.
// @description Warning: It only works if you use the catalog. Warning: You will get timed out if you refresh the catalog too much.
// @description Technical: Fetch all Mod posts from /pol/ with 4plebs API. Filter /bant/ of moved /pol/ posts.
// ==/UserScript==


let html = document.getElementById("threads");

let h1 = document.createElement("h1")
h1.style.textAlign = "center";
h1.appendChild(document.createTextNode("/pol/bant/"))

let div = document.createElement("div");
div.id = "polbant";
div.style.backgroundColor = "rgba(201, 76, 76, 0.3)"

let a = document.createElement("a");
a.text = "Show";
div.style.display= "none";

a.addEventListener("click", () => {
  if (a.text == "Show") {
    a.text = "Hide"
    div.style.display= "";
  } else {
    a.text = "Show"
    div.style.display= "none";
  }
})

html.prepend(div);
html.prepend(h1);
html.prepend(a);

let moved_threads = []
for (var i=0; i<5; i++){
  fetch('https://archive.4plebs.org/_/api/chan/search/?boards=pol&capcode=mod&page=' + i)
  .then(response => response.json())
  .then(data => {
    data["0"]["posts"].forEach(post => {
      // Extract id from comment
      const id = post["comment"].split(">>>/bant/")[1];
      if (id === undefined) return;
      const moved_thread = {
        pol_id: post["thread_num"],
        bant_id: id
      };
      moved_threads.push(moved_thread);
    });
  })
  .then(() => {
    console.log(moved_threads);
    for(var i=0; i<moved_threads.length; i++) {
      try {
        let tn = document.getElementById(`thread-${moved_threads[i]["bant_id"]}`);
        let ref = document.createElement("a");
        ref.text = "⏩";
        ref.target="_blank"
        ref.style.position = "absolute";
        ref.style.fontSize = "30px";
        ref.href = `https://archive.4plebs.org/pol/thread/${moved_threads[i]["pol_id"]}`;
        tn.prepend(ref);
        div.appendChild(tn);
      }
     catch {
       console.log(`Failed to append thread-${moved_threads[i]["bant_id"]} to polbant section - Probably thread is deleted from /bant/`)
     }
    }
  })
}