Batch Unsave Reddit Posts

Unsave all saved posts on old.reddit.com via Tampermonkey menu
换行
// ==UserScript==
// @name         Batch Unsave Reddit Posts
// @namespace    https://github.com/YangHgRi
// @version      1.0
// @description  Unsave all saved posts on old.reddit.com via Tampermonkey menu
// @author       YangHgRi
// @match        https://old.reddit.com/user/*/saved*
// @grant        GM_registerMenuCommand
// @grant        GM_notification
// @license MIT
// ==/UserScript==

(function () {
  const wait = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
  const BATCH_SIZE = 50;
  const BATCH_BREAK = 60000;
  const DELAY_MIN = 2000;
  const DELAY_MAX = 5000;

  const originalTitle = document.title;
  let totalUnsaved = 0;
  let totalFound = 0;

  // ── Toast UI ──
  function createToast() {
    const el = document.createElement("div");
    Object.assign(el.style, {
      position: "fixed",
      bottom: "20px",
      right: "20px",
      zIndex: "99999",
      padding: "12px 20px",
      minWidth: "220px",
      background: "#1a1a2e",
      color: "#eee",
      fontSize: "13px",
      borderRadius: "8px",
      boxShadow: "0 4px 16px rgba(0,0,0,.4)",
      fontFamily: "system-ui, sans-serif",
      transition: "opacity .4s",
      lineHeight: "1.6",
    });
    document.body.appendChild(el);
    return el;
  }

  let toast = null;

  function updateProgress(msg) {
    if (!toast) toast = createToast();
    toast.innerHTML = msg;
    document.title = `[${totalUnsaved}/${totalFound}] Unsaving… — Reddit`;
  }

  function dismissToast(delay = 4000) {
    document.title = originalTitle;
    if (!toast) return;
    setTimeout(() => {
      toast.style.opacity = "0";
    }, delay);
    setTimeout(() => {
      toast.remove();
      toast = null;
    }, delay + 500);
  }

  // ── Core ──
  async function getUnsaveLinks() {
    return $("a")
      .filter(function () {
        return $(this).text().toLowerCase() === "unsave";
      })
      .toArray();
  }

  async function processLinks(links) {
    for (let i = 0; i < links.length; i++) {
      $(links[i]).click();
      totalUnsaved++;
      updateProgress(`⏳ Unsaving <b>${totalUnsaved}</b> / ${totalFound}`);

      if (totalUnsaved % BATCH_SIZE === 0) {
        updateProgress(
          `⏸ Processed ${totalUnsaved} items, cooling down ${BATCH_BREAK / 1000}s…`,
        );
        await wait(BATCH_BREAK);
      } else {
        const delay =
          Math.floor(Math.random() * (DELAY_MAX - DELAY_MIN + 1)) + DELAY_MIN;
        await wait(delay);
      }
    }
  }

  async function scrollAndUnsave() {
    let previousHeight = 0;
    let sameHeightCount = 0;
    updateProgress("🔍 Scanning saved list…");

    while (true) {
      const links = await getUnsaveLinks();
      if (links.length === 0) break;

      totalFound += links.length;
      await processLinks(links);

      window.scrollTo({ top: document.body.scrollHeight, behavior: "smooth" });
      updateProgress("🔍 Scrolling for more…");
      await wait(2000);

      const currentHeight = document.body.scrollHeight;
      if (currentHeight === previousHeight) {
        sameHeightCount++;
        if (sameHeightCount >= 3) break;
      } else {
        sameHeightCount = 0;
        previousHeight = currentHeight;
      }
    }

    updateProgress(`✅ Done! Unsaved <b>${totalUnsaved}</b> posts`);
    GM_notification({
      title: "Reddit Unsave",
      text: `Done! Unsaved ${totalUnsaved} posts`,
      timeout: 5000,
    });
    dismissToast(3000);
    setTimeout(() => location.reload(), 4000);
  }

  GM_registerMenuCommand("Unsave All", () => {
    if (typeof $ === "undefined") {
      const s = document.createElement("script");
      s.src = "https://code.jquery.com/jquery-3.6.0.min.js";
      s.onload = () => scrollAndUnsave();
      document.head.appendChild(s);
    } else {
      scrollAndUnsave();
    }
  });
})();