import type { Metadata } from "next";
import { notFound } from "next/navigation";
import { Container } from "@/components/ui";
import { ContentImage } from "@/components/content-image";
import { ScrollReveal } from "@/components/scroll-reveal";
import { TrustBadges } from "@/components/trust-badges";
import { ShieldIcon } from "@/components/account-ui";
import { ProductTeaserLink } from "@/components/product-card";
import { getBatchByCode } from "@/lib/data";
import { formatDate } from "@/lib/format";
import { getLocale } from "@/i18n/locale";
import { getDictionary } from "@/i18n/get-dictionary";

// Siehe Begruendung in app/honig/[slug]/page.tsx.
export const dynamic = "force-dynamic";

export async function generateMetadata(
  props: PageProps<"/charge/[code]">
): Promise<Metadata> {
  const { code } = await props.params;
  return { title: `Charge ${code}`, alternates: { canonical: `/charge/${code}` } };
}

/**
 * Chargen-Seite, die ueber den QR-Code auf jedem Wabenhain-Glas erreichbar
 * ist (wabenhain.com/charge/{code}). Zeigt Herkunft, Erntezeitraum und
 * Abfuelldatum der konkreten Charge, aus der das Glas stammt — der Moment,
 * in dem jemand mit dem Glas in der Hand die Herkunftsangaben nachprueft.
 */
export default async function BatchPage(props: PageProps<"/charge/[code]">) {
  const locale = await getLocale();
  const t = getDictionary(locale);
  const { code } = await props.params;
  const batch = await getBatchByCode(code);
  if (!batch) notFound();

  const steps = [
    { label: t.chargePage.stepHarvest, value: formatDate(batch.harvest.harvestDate, locale) },
    { label: t.chargePage.stepFilling, value: formatDate(batch.fillDate, locale) },
    { label: t.chargePage.stepBestBefore, value: formatDate(batch.bestBeforeDate, locale) },
  ];
  // Eigene Chargenfotos (z.B. Etikett/Abfuellung dieser konkreten Charge)
  // gehen PRO Slot vor, falls gepflegt — sonst faellt genau dieser Slot auf
  // das entsprechende Erntebild zurueck. Bewusst NICHT alles-oder-nichts:
  // wer nur ein Chargenfoto pflegt, soll nicht das zweite (Standort-)Bild
  // verlieren, nur weil die Charge kein zweites eigenes Foto hat.
  // "||" statt "??": ein im Admin geleerter Slot kommt als leerer String
  // an, nicht als undefined (siehe imageSlots() in
  // admin/actions/harvests-batches.ts). Mit "??" wuerde dieser leere String
  // als gueltiger Wert durchgehen und das Erntebild darunter verdecken.
  const displayImages = [
    batch.images[0] || batch.harvest.images[0] || null,
    batch.images[1] || batch.harvest.images[1] || null,
  ];

  return (
    <div className="py-20">
      <Container className="max-w-3xl">
        <ScrollReveal>
          {/* Echtheitssiegel: wer den QR-Code vom Glas scannt, landet hier —
              das Siegel stempelt sich ein, bevor die Details folgen. */}
          <div className="flex items-center gap-4">
            <span
              className="motion-stamp relative flex h-16 w-14 flex-shrink-0 items-center justify-center text-cream animate-[wh-stamp_0.7s_var(--ease-arrive)_both]"
              style={{ animationDelay: "150ms" }}
            >
              <svg viewBox="0 0 24 26" aria-hidden="true" className="absolute inset-0 h-full w-full">
                <polygon points="12,1 22.4,7 22.4,19 12,25 1.6,19 1.6,7" fill="var(--color-honey-dark)" />
                <polygon
                  points="12,3.2 20.5,8.1 20.5,17.9 12,22.8 3.5,17.9 3.5,8.1"
                  fill="none"
                  stroke="var(--color-honey-pale)"
                  strokeWidth="0.6"
                  strokeDasharray="1.2 1"
                />
              </svg>
              <span className="relative">
                <ShieldIcon />
              </span>
            </span>
            <span className="tracking-wide-caps text-xs text-honey-dark">{t.chargePage.verifiedBatch}</span>
          </div>
          <h1 className="mt-6 text-5xl md:text-6xl leading-[1] tracking-[-0.015em] text-heading">
            {batch.harvest.type} {batch.harvest.year}
          </h1>
          <p className="mt-4 text-sm text-ink/70">{t.chargePage.provenanceNote(batch.code)}</p>
        </ScrollReveal>

        <div className="mt-10 grid sm:grid-cols-2 gap-6">
          <ScrollReveal>
            <ContentImage
              src={displayImages[0] ?? null}
              alt={`${batch.harvest.type} ${batch.harvest.year}`}
              tone="honey"
              className="aspect-square"
              label={`${batch.harvest.type} ${batch.harvest.year}`}
              sizes="(min-width: 640px) 50vw, 100vw"
            />
          </ScrollReveal>
          <ScrollReveal delay={0.1}>
            <ContentImage
              src={displayImages[1] ?? null}
              alt={batch.harvest.location}
              tone="forest"
              className="aspect-square"
              label={batch.harvest.location}
              sizes="(min-width: 640px) 50vw, 100vw"
            />
          </ScrollReveal>
        </div>

        <ScrollReveal className="mt-14">
          <ol className="grid grid-cols-3 gap-4">
            {steps.map((step, i) => (
              <li key={step.label} className="relative">
                <div className="flex items-center">
                  <svg viewBox="0 0 24 26" aria-hidden="true" className="h-4 w-4 flex-shrink-0">
                    <polygon
                      points="12,1 22.4,7 22.4,19 12,25 1.6,19 1.6,7"
                      fill="var(--color-honey)"
                      stroke="var(--color-honey-dark)"
                      strokeWidth="2"
                    />
                  </svg>
                  {i < steps.length - 1 ? (
                    <span className="relative ml-1 h-[2px] flex-1 overflow-hidden rounded-full bg-ink/10" aria-hidden="true">
                      <span
                        className="motion-grow absolute inset-0 origin-left bg-honey animate-[wh-grow_0.6s_var(--ease-arrive)_both]"
                        style={{ animationDelay: `${500 + i * 220}ms` }}
                      />
                    </span>
                  ) : null}
                </div>
                <p className="mt-3 text-xs tracking-wide-caps text-ink/70">{step.label}</p>
                <p className="mt-1 font-serif text-xl text-heading tabular-nums">{step.value}</p>
              </li>
            ))}
          </ol>
        </ScrollReveal>

        <ScrollReveal className="mt-10 border-t border-ink/10 pt-8">
          <p className="text-sm tracking-wide-caps text-ink/70 mb-2">{t.chargePage.regionLabel}</p>
          <p className="text-ink/80">{batch.harvest.location}</p>
          <p className="mt-6 text-ink/70 leading-relaxed">{batch.harvest.description}</p>
        </ScrollReveal>

        <TrustBadges className="mt-10 pt-8 border-t border-ink/10" />

        {batch.products.length > 0 ? (
          <div className="mt-14 border-t border-ink/10 pt-10">
            <ScrollReveal>
              <p className="text-sm tracking-wide-caps text-ink/70 mb-6">{t.chargePage.fromThisBatch}</p>
            </ScrollReveal>
            <div className="grid sm:grid-cols-2 gap-6">
              {batch.products.map((product) => (
                <ProductTeaserLink
                  key={product.id}
                  slug={product.slug}
                  name={product.name}
                  image={product.images[0] ?? null}
                />
              ))}
            </div>
          </div>
        ) : null}
      </Container>
    </div>
  );
}