import { ogImage, OG_SIZE, OG_CONTENT_TYPE } from '@/lib/og';
import { getBiomarkerBySlug } from '@/lib/queries/biomarkers';
import { humanize } from '@/lib/format';

export const alt = 'CancerIndex biomarker page';
export const size = OG_SIZE;
export const contentType = OG_CONTENT_TYPE;
export const revalidate = 3600;

export default async function Image({ params }: { params: Promise<{ slug: string }> }) {
  const { slug } = await params;
  const b = await getBiomarkerBySlug(slug);
  if (!b) return ogImage({ kicker: 'Biomarker', title: 'Biomarker not found', subtitle: slug });
  const genes = (b.gene_symbols ?? []).slice(0, 4).join(', ');
  return ogImage({
    kicker: `Biomarker · ${humanize(b.kind)}${b.ncit_code ? ` · NCIt ${b.ncit_code}` : ''}`,
    title: b.name,
    subtitle: b.description ?? (genes ? `Anchor gene${genes.includes(',') ? 's' : ''}: ${genes}` : 'Curated biomarker with derived links to cancers, drugs, approvals and trials.'),
    facts: genes ? [{ label: 'anchor genes', value: genes }] : [],
    sourcesNote: 'NCIt (EVS) · CIViC · openFDA / Health Canada / EMA · ClinicalTrials.gov',
  });
}