import type { Metadata } from "next";

const BASE_URL = "https://www.aurumtradingbot.com";
const INVITE_CODE = "YHHT58";
const INVITE_URL = `https://backoffice.aurum.foundation/u/${INVITE_CODE}`;

type Lang = "en" | "tr" | "el" | "de" | "es";

const LOCALE_MAP: Record<string, string> = {
  en: "en_US",
  tr: "tr_TR",
  el: "el_GR",
  de: "de_DE",
  es: "es_ES",
};

const COPY: Record<Lang, {
  metaTitle: string;
  metaDescription: string;
  h1: string;
  intro: string;
  stepsTitle: string;
  steps: string[];
  faqTitle: string;
  faqs: { q: string; a: string }[];
  ctaPrimary: string;
  ctaSecondary: string;
  noteTitle: string;
  noteText: string;
}> = {
  en: {
    metaTitle: `AURUM Invite Code ${INVITE_CODE} | Registration & Setup Guide`,
    metaDescription:
      `Use the official AURUM invite code ${INVITE_CODE} to access the registration flow. Step-by-step instructions, FAQs, and safe-use notes.`,
    h1: `AURUM Invite Code: ${INVITE_CODE}`,
    intro:
      `This page explains how to use the AURUM invite code (${INVITE_CODE}) during registration, what it does, and the most common issues people hit.`,
    stepsTitle: "How to use the invite code",
    steps: [
      `Open the registration page using the partner link.`,
      `Create your account and verify your email (if requested).`,
      `If you see an “Invite code” field, enter: ${INVITE_CODE}.`,
      `Complete the registration steps shown on-screen.`,
      `Keep your credentials safe. Use strong passwords and 2FA if available.`,
    ],
    faqTitle: "FAQ",
    faqs: [
      {
        q: "What is an AURUM invite code?",
        a: "It’s a referral/partner identifier used during signup to connect your registration to a specific partner link or onboarding flow.",
      },
      {
        q: `Is ${INVITE_CODE} required to register?`,
        a: "Some signup flows auto-apply the code via the link. If a field appears, entering the code ensures it’s correctly applied.",
      },
      {
        q: "Where do I enter the invite code?",
        a: "During registration. If the page doesn’t show a separate field, the partner link usually applies it automatically.",
      },
      {
        q: "Can I change the code later?",
        a: "That depends on the platform rules. Many systems lock the referral source after account creation.",
      },
      {
        q: "Is this financial advice?",
        a: "No. This page is informational only. Cryptocurrency activity involves risk and can result in losses.",
      },
    ],
    ctaPrimary: "Register with this invite code",
    ctaSecondary: "Read risk disclaimer",
    noteTitle: "Important note",
    noteText:
      "This website is operated by an independent partner and is not the official AURUM Foundation website. Content is provided for educational purposes only.",
  },

  tr: {
    metaTitle: `AURUM Davet Kodu ${INVITE_CODE} | Kayıt ve Kurulum Rehberi`,
    metaDescription:
      `AURUM davet kodu ${INVITE_CODE} ile kayıt akışına erişin. Adım adım kullanım, SSS ve güvenli kullanım notları.`,
    h1: `AURUM Davet Kodu: ${INVITE_CODE}`,
    intro:
      `Bu sayfa, kayıt sırasında AURUM davet kodunun (${INVITE_CODE}) nasıl kullanıldığını, ne işe yaradığını ve en sık yaşanan sorunları açıklar.`,
    stepsTitle: "Davet kodu nasıl kullanılır?",
    steps: [
      "Partner kayıt bağlantısını açın.",
      "Hesap oluşturun ve gerekiyorsa e-postanızı doğrulayın.",
      `“Davet Kodu / Invite Code” alanı görünürse: ${INVITE_CODE} yazın.`,
      "Ekrandaki kayıt adımlarını tamamlayın.",
      "Hesabınızı koruyun: güçlü şifre ve varsa 2FA kullanın.",
    ],
    faqTitle: "SSS",
    faqs: [
      {
        q: "AURUM davet kodu nedir?",
        a: "Kayıt sırasında hesabınızı belirli bir partner/onboarding akışına bağlayan referans tanımlayıcıdır.",
      },
      {
        q: `${INVITE_CODE} kodu şart mı?`,
        a: "Bazı kayıtlarda kod link üzerinden otomatik uygulanır. Alan görünüyorsa kodu girmek doğru uygulanmasını sağlar.",
      },
      {
        q: "Kodu nereye yazacağım?",
        a: "Kayıt esnasında. Ayrı alan yoksa, partner linki genelde kodu otomatik uygular.",
      },
      {
        q: "Sonradan değiştirebilir miyim?",
        a: "Platform kurallarına bağlı. Çoğu sistemde kayıt sonrası referral kaynağı kilitlenir.",
      },
      {
        q: "Bu yatırım tavsiyesi mi?",
        a: "Hayır. Bu sayfa bilgilendirme amaçlıdır. Kripto işlemleri risk içerir ve kayıpla sonuçlanabilir.",
      },
    ],
    ctaPrimary: "Bu davet koduyla kayıt ol",
    ctaSecondary: "Risk uyarısını oku",
    noteTitle: "Önemli not",
    noteText:
      "Bu site bağımsız bir partner tarafından işletilmektedir ve resmi AURUM Foundation sitesi değildir. İçerikler bilgilendirme amaçlıdır.",
  },

  el: {
    metaTitle: `AURUM Κωδικός Πρόσκλησης ${INVITE_CODE} | Εγγραφή & Οδηγός`,
    metaDescription:
      `Χρησιμοποίησε τον κωδικό πρόσκλησης AURUM ${INVITE_CODE} για την εγγραφή. Βήματα, FAQ και σημειώσεις ασφαλείας.`,
    h1: `AURUM Κωδικός Πρόσκλησης: ${INVITE_CODE}`,
    intro:
      `Η σελίδα εξηγεί πώς να χρησιμοποιήσεις τον κωδικό πρόσκλησης (${INVITE_CODE}) στην εγγραφή, τι κάνει και τα συχνότερα προβλήματα.`,
    stepsTitle: "Πώς να χρησιμοποιήσεις τον κωδικό",
    steps: [
      "Άνοιξε τον σύνδεσμο εγγραφής συνεργάτη.",
      "Δημιούργησε λογαριασμό και επιβεβαίωσε email (αν ζητηθεί).",
      `Αν δεις πεδίο “Invite code”, γράψε: ${INVITE_CODE}.`,
      "Ολοκλήρωσε τα βήματα εγγραφής.",
      "Χρησιμοποίησε ισχυρό κωδικό και 2FA (αν υπάρχει).",
    ],
    faqTitle: "Συχνές Ερωτήσεις",
    faqs: [
      {
        q: "Τι είναι ο κωδικός πρόσκλησης AURUM;",
        a: "Είναι αναγνωριστικό referral/partner που συνδέει την εγγραφή με συγκεκριμένο σύνδεσμο ή ροή onboarding.",
      },
      {
        q: `Είναι απαραίτητος ο κωδικός ${INVITE_CODE};`,
        a: "Σε πολλές περιπτώσεις εφαρμόζεται αυτόματα μέσω του συνδέσμου. Αν υπάρχει πεδίο, η εισαγωγή του κωδικού το επιβεβαιώνει.",
      },
      {
        q: "Πού τον βάζω;",
        a: "Κατά την εγγραφή. Αν δεν υπάρχει πεδίο, συνήθως ο σύνδεσμος τον εφαρμόζει αυτόματα.",
      },
      {
        q: "Μπορώ να τον αλλάξω μετά;",
        a: "Εξαρτάται από τους κανόνες της πλατφόρμας. Συχνά “κλειδώνει” μετά τη δημιουργία λογαριασμού.",
      },
      {
        q: "Είναι οικονομική συμβουλή;",
        a: "Όχι. Μόνο ενημερωτικό περιεχόμενο. Τα crypto έχουν κίνδυνο και μπορεί να οδηγήσουν σε απώλειες.",
      },
    ],
    ctaPrimary: "Εγγραφή με αυτόν τον κωδικό",
    ctaSecondary: "Δες την προειδοποίηση κινδύνου",
    noteTitle: "Σημαντική σημείωση",
    noteText:
      "Ο ιστότοπος λειτουργεί από ανεξάρτητο συνεργάτη και δεν είναι ο επίσημος ιστότοπος του AURUM Foundation. Πληροφοριακό περιεχόμενο μόνο.",
  },

  de: {
    metaTitle: `AURUM Einladungscode ${INVITE_CODE} | Registrierung & Anleitung`,
    metaDescription:
      `Nutze den AURUM Einladungscode ${INVITE_CODE} für die Registrierung. Schritt-für-Schritt, FAQ und Sicherheitshinweise.`,
    h1: `AURUM Einladungscode: ${INVITE_CODE}`,
    intro:
      `Diese Seite erklärt, wie du den Einladungscode (${INVITE_CODE}) bei der Registrierung nutzt, wofür er da ist und typische Probleme.`,
    stepsTitle: "So nutzt du den Einladungscode",
    steps: [
      "Öffne den Partner-Registrierungslink.",
      "Account erstellen und E-Mail bestätigen (falls erforderlich).",
      `Wenn ein Feld „Invite code“ erscheint: ${INVITE_CODE} eingeben.`,
      "Registrierung abschließen.",
      "Sichere dein Konto: starkes Passwort und ggf. 2FA.",
    ],
    faqTitle: "FAQ",
    faqs: [
      { q: "Was ist ein AURUM Einladungscode?", a: "Ein Referral/Partner-Identifikator, der deine Registrierung mit einem Partner-Link bzw. Onboarding verknüpft." },
      { q: `Muss ich ${INVITE_CODE} eingeben?`, a: "Oft wird der Code über den Link automatisch gesetzt. Wenn ein Feld erscheint, stelle sicher, dass der Code korrekt eingetragen ist." },
      { q: "Wo trage ich den Code ein?", a: "Während der Registrierung. Ohne Feld wird er meist automatisch über den Link angewendet." },
      { q: "Kann ich den Code später ändern?", a: "Kommt auf die Plattformregeln an. Häufig ist die Zuordnung nach der Registrierung fix." },
      { q: "Finanzberatung?", a: "Nein. Nur Informationszwecke. Krypto ist riskant und kann zu Verlusten führen." },
    ],
    ctaPrimary: "Mit diesem Code registrieren",
    ctaSecondary: "Risikohinweis lesen",
    noteTitle: "Wichtiger Hinweis",
    noteText:
      "Diese Website wird von einem unabhängigen Partner betrieben und ist nicht die offizielle AURUM Foundation Website. Nur zu Informationszwecken.",
  },

  es: {
    metaTitle: `Código de Invitación AURUM ${INVITE_CODE} | Registro y Guía`,
    metaDescription:
      `Usa el código de invitación AURUM ${INVITE_CODE} para el registro. Pasos, FAQ y notas de seguridad.`,
    h1: `Código de Invitación AURUM: ${INVITE_CODE}`,
    intro:
      `Esta página explica cómo usar el código (${INVITE_CODE}) durante el registro, para qué sirve y los problemas más comunes.`,
    stepsTitle: "Cómo usar el código",
    steps: [
      "Abre el enlace de registro del partner.",
      "Crea tu cuenta y verifica el email (si se solicita).",
      `Si aparece el campo “Invite code”, introduce: ${INVITE_CODE}.`,
      "Completa los pasos del registro.",
      "Protege tu cuenta: contraseña fuerte y 2FA si está disponible.",
    ],
    faqTitle: "FAQ",
    faqs: [
      { q: "¿Qué es un código de invitación AURUM?", a: "Un identificador de referral/partner que vincula tu registro con un enlace o flujo de onboarding específico." },
      { q: `¿Es obligatorio ${INVITE_CODE}?`, a: "A menudo se aplica automáticamente mediante el enlace. Si hay campo, escribirlo asegura que quede aplicado." },
      { q: "¿Dónde lo introduzco?", a: "Durante el registro. Si no hay campo, normalmente el enlace lo aplica automáticamente." },
      { q: "¿Puedo cambiarlo después?", a: "Depende de las reglas de la plataforma. Muchas veces queda bloqueado tras crear la cuenta." },
      { q: "¿Es asesoría financiera?", a: "No. Solo información. Las criptomonedas implican riesgo y pueden causar pérdidas." },
    ],
    ctaPrimary: "Registrarme con este código",
    ctaSecondary: "Leer aviso de riesgo",
    noteTitle: "Nota importante",
    noteText:
      "Este sitio es operado por un partner independiente y no es el sitio oficial de AURUM Foundation. Contenido solo informativo.",
  },
};

function safeLang(input: string): Lang {
  if (input === "tr" || input === "el" || input === "de" || input === "es") return input;
  return "en";
}

export async function generateMetadata(
  { params }: { params: { lang: string } }
): Promise<Metadata> {
  const lang = safeLang(params.lang);
  const c = COPY[lang];
  const url = `${BASE_URL}/${lang}/invite-code/`;

  return {
    title: c.metaTitle,
    description: c.metaDescription,
    alternates: {
      canonical: url,
      languages: {
        en: `${BASE_URL}/en/invite-code/`,
        tr: `${BASE_URL}/tr/invite-code/`,
        el: `${BASE_URL}/el/invite-code/`,
        de: `${BASE_URL}/de/invite-code/`,
        es: `${BASE_URL}/es/invite-code/`,
        "x-default": `${BASE_URL}/en/invite-code/`,
      },
    },
    openGraph: {
      title: c.metaTitle,
      description: c.metaDescription,
      url,
      siteName: "AURUM Trading Bot",
      locale: LOCALE_MAP[lang] || "en_US",
      type: "website",
      images: [
        {
          // Mümkünse bunu kendi domaininde hostla (CDN de olur)
          url: `${BASE_URL}/og/aurum-invite-code.png`,
          width: 1200,
          height: 630,
          alt: `AURUM Invite Code ${INVITE_CODE}`,
        },
      ],
    },
    twitter: {
      card: "summary_large_image",
      title: c.metaTitle,
      description: c.metaDescription,
      images: [`${BASE_URL}/og/aurum-invite-code.png`],
    },
    robots: {
      index: true,
      follow: true,
      googleBot: {
        index: true,
        follow: true,
        "max-snippet": -1,
        "max-image-preview": "large",
        "max-video-preview": -1,
      },
    },
  };
}

export default function InviteCodePage({ params }: { params: { lang: string } }) {
  const lang = safeLang(params.lang);
  const c = COPY[lang];
  const url = `${BASE_URL}/${lang}/invite-code/`;

  const faqJsonLd = {
    "@context": "https://schema.org",
    "@type": "FAQPage",
    mainEntity: c.faqs.map((f) => ({
      "@type": "Question",
      name: f.q,
      acceptedAnswer: { "@type": "Answer", text: f.a },
    })),
  };

  const pageJsonLd = {
    "@context": "https://schema.org",
    "@type": "WebPage",
    name: c.h1,
    description: c.metaDescription,
    url,
    isPartOf: { "@type": "WebSite", name: "AURUM Trading Bot", url: BASE_URL },
  };

  return (
    <main className="min-h-screen bg-[#0a0f1a] pt-28 pb-16">
      {/* JSON-LD */}
      <script
        type="application/ld+json"
        dangerouslySetInnerHTML={{ __html: JSON.stringify(pageJsonLd) }}
      />
      <script
        type="application/ld+json"
        dangerouslySetInnerHTML={{ __html: JSON.stringify(faqJsonLd) }}
      />

      <section className="max-w-5xl mx-auto px-4 sm:px-6 lg:px-8">
        <div className="glass-card rounded-2xl border border-white/10 p-6 sm:p-10">
          <p className="text-amber-400/90 text-sm font-semibold">AURUM</p>
          <h1 className="text-white text-3xl sm:text-4xl font-bold mt-2">
            {c.h1}
          </h1>
          <p className="text-gray-300 mt-4 leading-relaxed">
            {c.intro}
          </p>

          <div className="mt-6 flex flex-col sm:flex-row gap-3">
            <a
              href={INVITE_URL}
              target="_blank"
              rel="noopener noreferrer"
              className="inline-flex items-center justify-center gap-2 px-6 py-3 rounded-xl bg-gradient-to-r from-amber-500 to-amber-600 text-black font-semibold hover:from-amber-400 hover:to-amber-500 transition-all"
            >
              {c.ctaPrimary}
              <span aria-hidden="true">→</span>
            </a>

            <a
              href="#risk"
              className="inline-flex items-center justify-center px-6 py-3 rounded-xl border border-white/15 text-gray-200 hover:bg-white/5 transition-colors"
            >
              {c.ctaSecondary}
            </a>
          </div>

          <div className="mt-6 rounded-xl bg-white/5 border border-white/10 p-4">
            <div className="text-gray-200 font-semibold">{c.noteTitle}</div>
            <div className="text-gray-400 text-sm mt-1">{c.noteText}</div>
          </div>
        </div>
      </section>

      <section className="max-w-5xl mx-auto px-4 sm:px-6 lg:px-8 mt-10">
        <div className="rounded-2xl border border-white/10 p-6 sm:p-10 bg-white/3">
          <h2 className="text-white text-2xl font-bold">{c.stepsTitle}</h2>
          <ol className="mt-4 space-y-3 text-gray-300 list-decimal list-inside">
            {c.steps.map((s, i) => (
              <li key={i} className="leading-relaxed">{s}</li>
            ))}
          </ol>

          <div className="mt-6 rounded-xl border border-amber-500/25 bg-amber-500/10 p-4">
            <div className="text-amber-200 text-sm">
              <strong>Invite Code:</strong> {INVITE_CODE} ·{" "}
              <strong>Partner Link:</strong>{" "}
              <a className="underline" href={INVITE_URL} target="_blank" rel="noopener noreferrer">
                {INVITE_URL}
              </a>
            </div>
          </div>
        </div>
      </section>

      <section className="max-w-5xl mx-auto px-4 sm:px-6 lg:px-8 mt-10">
        <div className="rounded-2xl border border-white/10 p-6 sm:p-10 bg-white/3">
          <h2 className="text-white text-2xl font-bold">{c.faqTitle}</h2>

          <div className="mt-4 space-y-3">
            {c.faqs.map((f, i) => (
              <details key={i} className="rounded-xl border border-white/10 bg-white/5 p-4">
                <summary className="cursor-pointer text-gray-100 font-semibold">
                  {f.q}
                </summary>
                <p className="mt-2 text-gray-300 leading-relaxed">{f.a}</p>
              </details>
            ))}
          </div>
        </div>
      </section>

      {/* Risk block: footer’daki disclaimera paralel */}
      <section id="risk" className="max-w-5xl mx-auto px-4 sm:px-6 lg:px-8 mt-10">
        <div className="rounded-2xl border border-amber-500/20 bg-amber-500/10 p-6">
          <p className="text-amber-200/90 text-sm leading-relaxed">
            <strong>Risk Disclaimer:</strong> This content is for educational purposes only and does not constitute financial advice.
            Cryptocurrency activity involves risk and can result in losses. Past performance is not indicative of future results.
            Never invest more than you can afford to lose.
          </p>
        </div>
      </section>
    </main>
  );
}