type ServiceJsonLdArgs = {
  /** Area served, e.g. 'Wrocław' or ['Wrocław', 'Oława']. */
  areaServed?: string | string[]
  description?: string
  /** Service name, e.g. 'Sprzątanie biur'. */
  name: string
  /** Provider (business) name. */
  providerName: string
  /** Service type / category. */
  serviceType?: string
  url: string
}

/**
 * Builds Service JSON-LD (schema.org) for a service offering. Helps Google
 * understand "what this page sells" — useful for service landing pages
 * ("usługa + miasto"). Pairs well with LocalBusiness (the provider).
 *
 * Per-page (each service page emits its own), data from the panel:
 *
 *   import { buildServiceJsonLd } from '@intecion/ipal-kit'
 *   const jsonLd = buildServiceJsonLd({
 *     name: page.serviceName, providerName: company.name,
 *     url: pageUrl, areaServed: 'Wrocław',
 *   })
 */
export function buildServiceJsonLd({
  name,
  areaServed,
  description,
  providerName,
  serviceType,
  url,
}: ServiceJsonLdArgs) {
  return {
    name,
    '@context': 'https://schema.org',
    '@type': 'Service',
    provider: {
      name: providerName,
      '@type': 'LocalBusiness',
      url,
    },
    ...(description ? { description } : {}),
    ...(areaServed ? { areaServed } : {}),
    ...(serviceType ? { serviceType } : {}),
  }
}