(() => {
  // Clean up an earlier copy
  window.oneHitBridge?.close?.();
  document.getElementById("onehit-mp4-popup")?.remove();

  // Remember processed URLs during this browser page session
  const sent = window.__oneHitSent || (window.__oneHitSent = {
    add: new Set(),
    sub: new Set()
  });

  let currentUrl = "";
  let autoSend = false;
  let busy = false;
  let maximized = false;

  const popup = document.createElement("div");
  popup.id = "onehit-mp4-popup";
  popup.style.cssText = `
    position:fixed;right:20px;bottom:20px;width:390px;
    z-index:2147483647;background:#17191f;color:white;
    border:1px solid #555;border-radius:10px;
    box-shadow:0 5px 25px #0009;font:13px Arial,sans-serif;
    overflow:hidden;
  `;

  popup.innerHTML = `
    <div id="oh-head" style="
      display:flex;align-items:center;justify-content:space-between;
      padding:12px;background:#292d38;cursor:move;user-select:none">
      <strong>🎬 1hit MP4 Bridge</strong>
      <div style="display:flex;gap:5px">
        <button id="oh-min">—</button>
        <button id="oh-max">□</button>
        <button id="oh-close">✕</button>
      </div>
    </div>

    <div id="oh-content" style="padding:14px">
      <div id="oh-status" style="color:#aaa;margin-bottom:8px">
        Looking for MP4 videos...
      </div>

      <textarea id="oh-url" readonly placeholder="Waiting for MP4..."
        style="box-sizing:border-box;width:100%;height:65px;
        background:#252832;color:white;border:1px solid #555;
        border-radius:5px;padding:8px;resize:vertical"></textarea>

      <div style="display:flex;align-items:center;gap:10px;margin-top:12px">
        <label style="flex:1">
          Endpoint
          <select id="oh-endpoint" style="
            display:block;width:100%;margin-top:4px;padding:8px;
            background:#252832;color:white;border:1px solid #555;border-radius:5px">
            <option value="add">add.php</option>
            <option value="sub">sub.php</option>
          </select>
        </label>

        <label style="display:flex;align-items:center;gap:6px;padding-top:17px;cursor:pointer">
          <input id="oh-auto" type="checkbox">
          AUTO SEND
        </label>
      </div>

      <button id="oh-send" style="
        width:100%;margin-top:12px;padding:10px;
        background:#2863a0;color:white;border:0;border-radius:5px;cursor:pointer">
        Send current MP4
      </button>

      <div id="oh-count" style="color:#999;margin-top:8px;font-size:11px"></div>

      <div id="oh-footer" style="
        display:flex;justify-content:space-between;align-items:center;
        flex-wrap:wrap;gap:8px;border-top:1px solid #444;
        margin-top:12px;padding-top:10px;font-size:12px">
        <a href="https://1hit.no/kaggle" target="_blank" rel="noopener"
          style="color:#70b8ff;text-decoration:none">↗ 1hit.no/kaggle</a>
        <a href="https://chatgpt.com" target="_blank" rel="noopener"
          style="color:#aaa;text-decoration:none">Built with ChatGPT ↗</a>
      </div>
    </div>
  `;

  document.body.appendChild(popup);

  const $ = id => popup.querySelector("#oh-" + id);
  const status = $("status");
  const urlBox = $("url");

  function updateUI() {
    const endpoint = $("endpoint").value;
    const done = currentUrl && sent[endpoint].has(currentUrl);

    $("send").disabled = !currentUrl || done || busy;
    $("send").textContent = done
      ? "Already sent ✓"
      : endpoint === "add" ? "Send to add.php" : "Send to sub.php";

    $("send").style.opacity = $("send").disabled ? ".5" : "1";

    $("count").textContent =
      `Remembered: ${sent.add.size} add.php · ${sent.sub.size} sub.php`;
  }

  async function sendCurrent(automatic = false) {
    const url = currentUrl;
    const endpoint = $("endpoint").value;

    if (!url || busy || sent[endpoint].has(url)) return;

    busy = true;
    updateUI();

    status.textContent = `Sending to ${endpoint}.php...`;
    status.style.color = "#f0c674";

    try {
      let request;

      if (endpoint === "add") {
        request = fetch(
          "https://1hit.no/kaggle/add.php/?url=" + encodeURIComponent(url),
          { method: "GET", mode: "no-cors" }
        );
      } else {
        request = fetch("https://1hit.no/kaggle/sub.php", {
          method: "POST",
          mode: "no-cors",
          headers: {
            "Content-Type": "text/plain;charset=UTF-8"
          },
          body: JSON.stringify({
            url,
            client_id: "Wan2GP-Kaggle"
          })
        });
      }

      await request;

      // The no-cors response cannot confirm server-side completion.
      sent[endpoint].add(url);

      status.textContent = automatic
        ? `AUTO: request sent to ${endpoint}.php ✓`
        : `Request sent to ${endpoint}.php ✓`;

      status.style.color = "#70d99a";
    } catch (error) {
      status.textContent = `Request failed: ${error.message}`;
      status.style.color = "#ff7777";
    } finally {
      busy = false;
      updateUI();
    }
  }

  function findVideos() {
    const urls = [...document.querySelectorAll("video")]
      .map(v => v.currentSrc || v.src || v.querySelector("source")?.src || "")
      .filter(url =>
        /^https:\/\//i.test(url) &&
        /\.mp4(?:[?#]|$)/i.test(url)
      );

    const best =
      urls.find(url => url.includes("/gradio_api/file=")) ||
      urls.at(-1);

    if (best && best !== currentUrl) {
      currentUrl = best;
      urlBox.value = best;

      status.textContent = "New MP4 detected ✓";
      status.style.color = "#70d99a";

      updateUI();

      if (autoSend) sendCurrent(true);
    }
  }

  // AUTO SEND toggle
  $("auto").onchange = () => {
    autoSend = $("auto").checked;

    status.textContent = autoSend
      ? "AUTO SEND enabled — scanning every 10 seconds."
      : "AUTO SEND disabled — manual mode.";

    status.style.color = autoSend ? "#70d99a" : "#aaa";
  };

  $("endpoint").onchange = updateUI;
  $("send").onclick = () => sendCurrent(false);

  // Minimize / restore
  $("min").onclick = () => {
    const content = $("content");
    const hidden = content.style.display === "none";

    content.style.display = hidden ? "block" : "none";
    $("min").textContent = hidden ? "—" : "+";
  };

  // Maximize / restore
  $("max").onclick = () => {
    maximized = !maximized;

    if (maximized) {
      popup.dataset.oldStyle = JSON.stringify({
        width: popup.style.width,
        height: popup.style.height,
        top: popup.style.top,
        left: popup.style.left,
        right: popup.style.right,
        bottom: popup.style.bottom,
        borderRadius: popup.style.borderRadius
      });

      popup.style.width = "min(700px, calc(100vw - 30px))";
      popup.style.height = "min(85vh, 750px)";
      popup.style.top = "50%";
      popup.style.left = "50%";
      popup.style.right = "auto";
      popup.style.bottom = "auto";
      popup.style.transform = "translate(-50%, -50%)";

      $("content").style.overflow = "auto";
      $("content").style.maxHeight = "calc(85vh - 50px)";
      $("max").textContent = "❐";
    } else {
      const old = JSON.parse(popup.dataset.oldStyle || "{}");
      Object.assign(popup.style, old);
      popup.style.transform = "";

      $("content").style.maxHeight = "";
      $("max").textContent = "□";
    }
  };

  // Drag using the header
  let drag = null;

  $("head").addEventListener("pointerdown", e => {
    if (e.target.closest("button") || maximized) return;

    const rect = popup.getBoundingClientRect();

    drag = {
      x: e.clientX - rect.left,
      y: e.clientY - rect.top
    };

    $("head").setPointerCapture(e.pointerId);
  });

  $("head").addEventListener("pointermove", e => {
    if (!drag) return;

    popup.style.left = `${e.clientX - drag.x}px`;
    popup.style.top = `${e.clientY - drag.y}px`;
    popup.style.right = "auto";
    popup.style.bottom = "auto";
  });

  $("head").addEventListener("pointerup", () => drag = null);
  $("head").addEventListener("pointercancel", () => drag = null);

  // Scan immediately, then every 10 seconds
  findVideos();
  const timer = setInterval(findVideos, 10000);

  $("close").onclick = () => {
    clearInterval(timer);
    popup.remove();
    delete window.oneHitBridge;
  };

  window.oneHitBridge = {
    scan: findVideos,
    close: () => $("close").click(),
    sent
  };

  updateUI();
})();