var d = $input.first().json;

// GET book from CMS
var book;
try {
  var check = await this.helpers.httpRequest({
    method: "GET",
    url: "https://cms.dk0.dev/items/book_reviews",
    headers: { Authorization: "Bearer RF2QytqhcLXuVy6FO3PzWlsoR-ysCTwB" },
    qs: {
      "filter[hardcover_id][_eq]": d.hardcoverId,
      "fields": "id,book_title,book_author",
      "limit": 1
    }
  });
  book = check.data?.[0];
} catch (e) {
  var errmsg = "❌ GET Fehler: " + e.message;
  return [{ json: { msg: errmsg, chatId: d.chatId } }];
}

if (!book) {
  var errmsg = "❌ Buch mit Hardcover ID " + d.hardcoverId + " nicht gefunden.";
  return [{ json: { msg: errmsg, chatId: d.chatId } }];
}

console.log("Book found:", book.book_title);

// Generate German review
var promptDe = "Schreibe eine persönliche Buchrezension (4-6 Sätze, Ich-Perspektive, nur Deutsch) zu '" + book.book_title + "' von " + book.book_author + ". Rating: " + d.rating + "/5. Meine Gedanken: " + d.answers + ". Formuliere professionell aber authentisch. NUR der Review-Text, kein JSON, kein Titel, keine Anführungszeichen drumherum.";

var reviewDe;
try {
  console.log("Generating German review...");
  var aiDe = await this.helpers.httpRequest({
    method: "POST",
    url: "https://openrouter.ai/api/v1/chat/completions",
    headers: {
      "Content-Type": "application/json",
      Authorization: "Bearer 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"
    },
    body: {
      model: "google/gemini-2.5-flash",
      messages: [{ role: "user", content: promptDe }],
      temperature: 0.7
    }
  });
  reviewDe = aiDe.choices?.[0]?.message?.content?.trim() || d.answers;
  console.log("German review generated:", reviewDe.substring(0, 100) + "...");
} catch (e) {
  console.log("German AI error:", e.message);
  reviewDe = d.answers;
}

// Generate English review
var promptEn = "You are a professional book critic writing in ENGLISH ONLY. Write a personal book review (4-6 sentences, first person perspective) of '" + book.book_title + "' by " + book.book_author + ". Rating: " + d.rating + "/5 stars. Reader notes: " + d.answers + ". Write professionally but authentically. OUTPUT ONLY THE REVIEW TEXT IN ENGLISH, no JSON, no title, no quotes.";

var reviewEn;
try {
  console.log("Generating English review...");
  var aiEn = await this.helpers.httpRequest({
    method: "POST",
    url: "https://openrouter.ai/api/v1/chat/completions",
    headers: {
      "Content-Type": "application/json",
      Authorization: "Bearer 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"
    },
    body: {
      model: "openrouter/free",
      messages: [
        { role: "system", content: "You are a book critic. You ALWAYS write in English, never in German." },
        { role: "user", content: promptEn }
      ],
      temperature: 0.7
    }
  });
  reviewEn = aiEn.choices?.[0]?.message?.content?.trim() || d.answers;
  console.log("English review generated:", reviewEn.substring(0, 100) + "...");
} catch (e) {
  console.log("English AI error:", e.message);
  reviewEn = d.answers;
}

// PATCH book with reviews
try {
  console.log("Patching book #" + book.id);
  await this.helpers.httpRequest({
    method: "PATCH",
    url: "https://cms.dk0.dev/items/book_reviews/" + book.id,
    headers: {
      "Content-Type": "application/json",
      Authorization: "Bearer RF2QytqhcLXuVy6FO3PzWlsoR-ysCTwB"
    },
    body: {
      rating: d.rating,
      status: "draft",
      translations: {
        create: [
          { languages_code: "en-US", review: reviewEn },
          { languages_code: "de-DE", review: reviewDe }
        ]
      }
    }
  });
  console.log("PATCH success");
} catch (e) {
  console.log("PATCH ERROR:", e.message);
  var errmsg = "❌ PATCH Fehler: " + e.message;
  return [{ json: { msg: errmsg, chatId: d.chatId } }];
}

// Build Telegram message (no emojis for better encoding)
var msg = "REVIEW: " + book.book_title + " - " + d.rating + "/5 Sterne";
msg = msg + "\n\n--- DEUTSCH ---\n" + reviewDe;
msg = msg + "\n\n--- ENGLISH ---\n" + reviewEn;
msg = msg + "\n\n==================";
msg = msg + "\n/publishbook" + book.id + " - Veroeffentlichen";
msg = msg + "\n/deletereview" + book.id + " - Loeschen und nochmal";

return [{ json: { msg: msg, chatId: d.chatId } }];