import {
  api,
  VERDICT_LABELS,
  formatTimestamp,
  youtubeUrl,
  getToken,
  setToken,
  isLoggedIn,
} from "./api.js";

function getVideoIdFromPath() {
  const parts = window.location.pathname.split("/").filter(Boolean);
  if (parts[0] === "r" && parts[1]) return decodeURIComponent(parts[1]);
  const params = new URLSearchParams(window.location.search);
  return params.get("v") || "";
}

function escapeHtml(text) {
  const div = document.createElement("div");
  div.textContent = text;
  return div.innerHTML;
}

function setMeta(recap) {
  document.title = `${recap.title} — Goldfish Recap`;
  document.getElementById("metaDescription").content = recap.tldr;
  document.getElementById("ogTitle").content = recap.title;
  document.getElementById("ogDescription").content = recap.tldr;
  document.getElementById("ogImage").content = recap.thumbnail_url || "";
}

function renderRecap(recap) {
  const verdict = VERDICT_LABELS[recap.watch_verdict] || VERDICT_LABELS.skim;
  document.getElementById("verdictBadge").className = `verdictBadge ${verdict.className}`;
  document.getElementById("verdictBadge").textContent = `${verdict.emoji} ${verdict.text}`;
  document.getElementById("videoTitle").textContent = recap.title;
  document.getElementById("channelName").textContent = recap.channel || "";
  document.getElementById("thumbImg").src = recap.thumbnail_url || "";
  document.getElementById("thumbImg").alt = recap.title;
  document.getElementById("thumbLink").href = youtubeUrl(recap.video_id);
  document.getElementById("tldrText").textContent = recap.tldr;
  document.getElementById("vibeText").textContent = recap.vibe_check || "";
  document.getElementById("goldfishNote").textContent = recap.goldfish_note || "";

  const sections = recap.sections || [];
  document.getElementById("sectionsList").innerHTML = sections
    .map(
      (s) => `
      <a class="sectionCard" href="${youtubeUrl(recap.video_id, s.timestamp_seconds)}" target="_blank" rel="noopener">
        <span class="sectionTime">${formatTimestamp(s.timestamp_seconds)}</span>
        <span class="sectionEmoji">${escapeHtml(s.emoji || "🐟")}</span>
        <div>
          <h3>${escapeHtml(s.title)}</h3>
          <p>${escapeHtml(s.summary)}</p>
        </div>
      </a>
    `
    )
    .join("");

  setMeta(recap);
}

function showError(msg) {
  document.getElementById("loadingState").hidden = true;
  document.getElementById("recapMain").hidden = true;
  document.getElementById("errorState").hidden = false;
  document.getElementById("errorText").textContent = msg;
}

async function loadRecap() {
  const videoId = getVideoIdFromPath();
  if (!videoId) {
    showError("Keine Video-ID in der URL.");
    return;
  }

  try {
    const recap = await api.getRecap(videoId);
    document.getElementById("loadingState").hidden = true;
    document.getElementById("recapMain").hidden = false;
    renderRecap(recap);

    if (isLoggedIn()) {
      document.getElementById("adminRow").hidden = false;
    }

    document.getElementById("copyLinkBtn").addEventListener("click", async () => {
      const url = `${window.location.origin}/r/${encodeURIComponent(videoId)}`;
      try {
        await navigator.clipboard.writeText(url);
        document.getElementById("copyLinkBtn").textContent = "Kopiert!";
        setTimeout(() => {
          document.getElementById("copyLinkBtn").textContent = "Link kopieren";
        }, 2000);
      } catch {
        window.prompt("Link kopieren:", url);
      }
    });
  } catch (err) {
    showError(err.message || "Recap nicht gefunden.");
  }
}

function wireRegenerate() {
  document.getElementById("regenerateBtn").addEventListener("click", async () => {
    const videoId = getVideoIdFromPath();
    const btn = document.getElementById("regenerateBtn");
    btn.disabled = true;
    btn.textContent = "Generiere…";
    try {
      const result = await api.regenerateRecap(videoId);
      renderRecap(result.recap);
    } catch (err) {
      alert(err.message || "Regenerieren fehlgeschlagen.");
    } finally {
      btn.disabled = false;
      btn.textContent = "Neu generieren";
    }
  });
}

function wirePinModal() {
  const pinModal = document.getElementById("pinModal");
  document.getElementById("pinCancel").addEventListener("click", () => pinModal.close());
  document.getElementById("pinForm").addEventListener("submit", async (e) => {
    e.preventDefault();
    const errEl = document.getElementById("pinError");
    errEl.hidden = true;
    try {
      const { token } = await api.login(document.getElementById("pinInput").value.trim());
      setToken(token);
      pinModal.close();
      document.getElementById("adminRow").hidden = false;
    } catch {
      errEl.textContent = "Falscher PIN.";
      errEl.hidden = false;
    }
  });
}

wireRegenerate();
wirePinModal();
loadRecap();

if ("serviceWorker" in navigator) {
  navigator.serviceWorker.register("/sw.js").catch(() => {});
}