/* discgod content script — adds a floating "Track in discgod" button on
 * Discogs seller pages. Reads the username from the URL and asks the background
 * worker to add it to the watchlist. Purely a convenience; all the real work
 * happens in the background worker + server. */

(function () {
  const m = location.pathname.match(/\/seller\/([^/?#]+)/);
  if (!m) return;
  const username = decodeURIComponent(m[1]);
  if (document.getElementById("discgod-track-btn")) return;

  const btn = document.createElement("button");
  btn.id = "discgod-track-btn";
  btn.textContent = "▶ Track in discgod";
  Object.assign(btn.style, {
    position: "fixed", right: "16px", bottom: "16px", zIndex: 99999,
    padding: "9px 14px", borderRadius: "8px", border: "none",
    background: "#4f9dff", color: "#07111f", fontWeight: "700",
    fontSize: "13px", cursor: "pointer", fontFamily: "system-ui, sans-serif",
    boxShadow: "0 3px 12px rgba(0,0,0,.35)",
  });

  btn.addEventListener("click", () => {
    btn.disabled = true;
    btn.textContent = "…";
    chrome.runtime.sendMessage({ type: "track", body: { username, filter: {} } }, (r) => {
      const ok = r && r.ok;
      btn.textContent = ok ? `✓ Tracking ${username}` : "✕ Failed";
      btn.style.background = ok ? "#38b000" : "#e5484d";
      btn.style.color = "#fff";
      setTimeout(() => {
        btn.textContent = "▶ Track in discgod";
        btn.style.background = "#4f9dff";
        btn.style.color = "#07111f";
        btn.disabled = false;
      }, 2500);
    });
  });

  document.body.appendChild(btn);
})();