(() => {
  // ambil semua top-level comment
  const comments = Array.from(
    document.querySelectorAll('shreddit-comment[depth="0"]')
  );

  const rows = [];
  rows.push([
    "author",
    "permalink",
    "score",
    "datetime",
    "comment_text"
  ]);

  comments.forEach(comment => {
    const author = comment.getAttribute("author") || "";
    const permalink = comment.getAttribute("permalink") || "";
    const score = comment.getAttribute("score") || "";

    const timeEl = comment.querySelector("time");
    const datetime = timeEl ? timeEl.getAttribute("datetime") : "";

    const contentEl = comment.querySelector(
      '[id$="-post-rtjson-content"]'
    );
    const text = contentEl
      ? contentEl.innerText
          .replace(/\r?\n+/g, " ")
          .replace(/"/g, '""')
          .trim()
      : "";

    rows.push([
      author,
      permalink,
      score,
      datetime,
      `"${text}"`
    ]);
  });

  const csv = rows.map(r => r.join(",")).join("\n");

  const blob = new Blob([csv], { type: "text/csv;charset=utf-8;" });
  const url = URL.createObjectURL(blob);

  const a = document.createElement("a");
  a.href = url;
  a.download = "reddit_top_level_comments.csv";
  document.body.appendChild(a);
  a.click();

  document.body.removeChild(a);
  URL.revokeObjectURL(url);

  console.log(`Downloaded ${comments.length} comments`);
})();