// content.js — onderschept klikken op NZB-links

// Patronen die duiden op een NZB-downloadlink
const NZB_PATTERNS = [
  /[?&]action=display/i,
  /[?&]page=getnzb/i,
  /\.nzb(\?|$)/i,
  /\/getnzb\//i,
  /\/download.*nzb/i,
  /nzb.*download/i
];

function isNzbLink(url) {
  return NZB_PATTERNS.some(pattern => pattern.test(url));
}

function showToast(message, success = true) {
  const existing = document.getElementById("nzb-sabnzbd-toast");
  if (existing) existing.remove();

  const toast = document.createElement("div");
  toast.id = "nzb-sabnzbd-toast";
  toast.textContent = message;
  toast.style.cssText = `
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999999;
    background: ${success ? "#1a1a2e" : "#3d0000"};
    color: ${success ? "#7ee8a2" : "#ff6b6b"};
    border: 1px solid ${success ? "#7ee8a2" : "#ff6b6b"};
    border-radius: 8px;
    padding: 12px 20px;
    font-family: system-ui, sans-serif;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    transition: opacity 0.3s ease;
    opacity: 1;
    max-width: 320px;
  `;
  document.body.appendChild(toast);

  setTimeout(() => {
    toast.style.opacity = "0";
    setTimeout(() => toast.remove(), 300);
  }, 3500);
}

document.addEventListener("click", async (e) => {
  // Zoek het dichtstbijzijnde <a>-element
  const anchor = e.target.closest("a");
  if (!anchor) return;

  const href = anchor.href;
  if (!href) return;

  if (!isNzbLink(href)) return;

  // Onderschep de klik
  e.preventDefault();
  e.stopPropagation();

  showToast("⏳ NZB wordt verstuurd naar SABnzbd...", true);

  const response = await chrome.runtime.sendMessage({
    type: "SEND_NZB",
    url: href
  });

  if (response?.success) {
    showToast("✅ Toegevoegd aan SABnzbd!", true);
  } else {
    showToast(`❌ Mislukt: ${response?.error || "Onbekende fout"}`, false);
  }
}, true); // useCapture = true zodat we vóór andere handlers zitten