import type { Metadata } from "next";
import { PageHeader } from "@/components/PageHeader";
import { Section, SectionHeading } from "@/components/Section";
import { ContactForm } from "@/components/ContactForm";
import { AngebotCard } from "@/components/AngebotCard";
import { Reveal } from "@/components/Reveal";
import { getBookingGlobal, getSEOSettingsGlobal } from "@/lib/payload/globals";
import { getOffers } from "@/lib/payload/content";
import { moodForOffer } from "@/lib/angebote";
import { mediaUrl } from "@/lib/payload/media";
import { resolveSeo } from "@/lib/seo/resolve";
import { buildMetadata } from "@/lib/seo/metadata";
import { getSiteUrl } from "@/lib/seo/config";
import { JsonLd, webPageJsonLd } from "@/lib/seo/jsonld";
import { siteConfig } from "@/lib/site";

export const dynamic = "force-dynamic";

const FALLBACK_DESCRIPTION = "Kennenlernen & Termine vereinbaren.";
const turnstileSiteKey = process.env.TURNSTILE_SITE_KEY ?? "";

export async function generateMetadata(): Promise<Metadata> {
  const [booking, seoSettings] = await Promise.all([getBookingGlobal(), getSEOSettingsGlobal()]);
  const resolved = resolveSeo({
    seo: booking.seo,
    fallbackTitle: `Termin buchen - ${siteConfig.name}`,
    fallbackDescription: () => booking.lead || seoSettings.defaultDescription || FALLBACK_DESCRIPTION,
    defaultOgImage: seoSettings.defaultOgImage,
  });
  return buildMetadata({
    title: resolved.title,
    description: resolved.description,
    path: "/termin-buchen",
    ogImageUrl: resolved.ogImageUrl,
    keywords: resolved.keywords,
  });
}

export default async function TerminBuchenPage() {
  const [booking, offers] = await Promise.all([getBookingGlobal(), getOffers()]);
  const bookableOffers = offers.filter((offer) => offer.bookable);
  const siteUrl = await getSiteUrl();

  return (
    <>
      <JsonLd
        data={webPageJsonLd({
          name: booking.title || "Termin buchen",
          description: booking.lead || FALLBACK_DESCRIPTION,
          url: `${siteUrl}/termin-buchen`,
        })}
      />
      <PageHeader
        eyebrow={booking.eyebrow || "Termin buchen"}
        title={booking.title || "Kennenlernen & Termine vereinbaren"}
        lead={booking.lead}
        crumbs={[{ title: "Termin buchen" }]}
      />

      <Section tone="cream">
        <div className="mx-auto grid max-w-4xl gap-5 md:grid-cols-2">
          <a href="#freie-termine" className="rounded-3xl bg-white p-7 transition-transform hover:-translate-y-1">
            <p className="text-xs font-medium uppercase tracking-[0.18em] text-anouma-dustyrose">Direkt buchen</p>
            <h2 className="mt-3 font-serif text-2xl font-medium text-anouma-plum">Freien Termin auswählen</h2>
            <p className="mt-3 text-sm leading-relaxed text-anouma-plum/80">Wähle ein Angebot, einen freien Tag und eine passende Uhrzeit im Kalender.</p>
            <span className="mt-5 inline-flex rounded-full bg-anouma-mauve-dark px-5 py-2.5 text-sm font-medium text-white">Zum Kalender</span>
          </a>
          <a href="/kontakt?subject=Terminanfrage" className="rounded-3xl bg-anouma-plum p-7 transition-transform hover:-translate-y-1">
            <p className="text-xs font-medium uppercase tracking-[0.18em] text-anouma-cream-light/75">Persönlich abstimmen</p>
            <h2 className="mt-3 font-serif text-2xl font-medium text-white">Anfrage stellen</h2>
            <p className="mt-3 text-sm leading-relaxed text-white/80">Wenn du keinen freien Kalendertermin brauchst oder etwas Besonderes besprechen möchtest.</p>
            <span className="mt-5 inline-flex rounded-full bg-white px-5 py-2.5 text-sm font-medium text-anouma-plum">Zur Kontaktseite</span>
          </a>
        </div>
      </Section>

      {bookableOffers.length > 0 && (
        <Section tone="plain" id="freie-termine">
          <SectionHeading eyebrow="Angebot auswählen" title="Wofür möchtest du einen Termin?" />
          <div className="mt-14 grid gap-6 sm:grid-cols-2 lg:grid-cols-3">
            {bookableOffers.map((offer, i) => (
              <Reveal key={offer.slug} delay={i * 0.08}>
                <AngebotCard
                  href={`/angebote/${offer.slug}`}
                  title={offer.title}
                  tagline={offer.shortDescription}
                  mood={moodForOffer(offer)}
                  imageSrc={mediaUrl(offer.image, "card")}
                />
              </Reveal>
            ))}
          </div>
        </Section>
      )}

      {booking.steps && booking.steps.length > 0 && (
        <Section tone="cream">
          <SectionHeading eyebrow="Ablauf" title="So findest du zu deinem Termin" />
          <div className="mt-14 grid gap-8 sm:grid-cols-3">
            {booking.steps.map((s, i) => (
              <Reveal key={s.id ?? s.title} delay={i * 0.08}>
                <p className="font-serif text-5xl font-medium text-anouma-rose">
                  {String(i + 1).padStart(2, "0")}
                </p>
                <h3 className="mt-4 font-serif text-xl font-medium text-anouma-plum">{s.title}</h3>
                <p className="mt-3 text-base leading-relaxed text-anouma-plum">{s.text}</p>
              </Reveal>
            ))}
          </div>
        </Section>
      )}

      <Section tone="plain">
        <div className="mx-auto max-w-xl">
          <SectionHeading
            title="Allgemeine Anfrage"
            lead={
              bookableOffers.length > 0
                ? "Für einen konkreten Termin wähle oben ein Angebot - hier kannst du auch einfach eine allgemeine Nachricht schreiben."
                : undefined
            }
            align="left"
          />
          <div className="mt-10">
            <ContactForm
              siteKey={turnstileSiteKey}
              subjectPrefix="Terminanfrage über anouma.org"
              type="appointment"
              submitLabel="Terminanfrage senden"
            />
          </div>
        </div>
      </Section>
    </>
  );
}