import { PLAN_AMOUNTS, getPlanLabel } from "@/lib/stripe/plans"
import { FAQS } from "@/lib/marketing/faqs"
import type { Plan } from "@/types"

const base = process.env.NEXT_PUBLIC_APP_URL ?? "https://propertymanagement.network"

function JsonLd({ data }: { data: Record<string, unknown> }) {
  return (
    <script
      type="application/ld+json"
      // JSON.stringify output is escaped for the closing-tag sequence so a value
      // containing "</script>" can't break out of the block.
      dangerouslySetInnerHTML={{ __html: JSON.stringify(data).replace(/</g, "\u003c") }}
    />
  )
}

// ── Site-wide entities ───────────────────────────────────────────
// Organization and WebSite describe the publisher and the site itself, so they
// are valid on every page of the marketing surface.

const organization: Record<string, unknown> = {
  "@context": "https://schema.org",
  "@type": "Organization",
  "@id": `${base}/#organization`,
  name: "Property Management Network",
  url: base,
  logo: `${base}/logo-mark.png`,
  contactPoint: {
    "@type": "ContactPoint",
    contactType: "customer support",
    email: "support@propertymanagement.network",
  },
  sameAs: [
    "https://twitter.com/propertymgmtnet",
    "https://github.com/propertymanagement-network",
  ],
}

const website: Record<string, unknown> = {
  "@context": "https://schema.org",
  "@type": "WebSite",
  "@id": `${base}/#website`,
  name: "Property Management Network",
  url: base,
  publisher: { "@id": `${base}/#organization` },
}

/**
 * Organization + WebSite JSON-LD. Safe to render on every marketing page —
 * both describe the site as a whole rather than the content of one page.
 */
export function SiteStructuredData() {
  return (
    <>
      <JsonLd data={organization} />
      <JsonLd data={website} />
    </>
  )
}

// ── Home-page-only entities ──────────────────────────────────────
// SoftwareApplication describes the product presented on the landing page, and
// FAQPage MUST only be emitted where the same questions and answers are visible
// to the user (Google's FAQ structured data policy). Both therefore belong to
// `/` alone and must NOT be moved into the shared marketing layout.

// Real plans + displayed prices from lib/stripe/plans.ts (single source of truth).
// Annual billing is auto-provisioned at checkout and has no fixed amount here, so
// we advertise only the monthly / one-time base prices that actually exist.
const planOrder: Plan[] = ["starter", "pro", "landlord", "lifetime"]
const planPrices = planOrder.map((plan) => PLAN_AMOUNTS[plan])
const planOffers = planOrder.map((plan) => ({
  "@type": "Offer",
  name: getPlanLabel(plan),
  price: String(PLAN_AMOUNTS[plan]),
  priceCurrency: "USD",
  url: `${base}/#pricing`,
  availability: "https://schema.org/InStock",
}))

const softwareApplication: Record<string, unknown> = {
  "@context": "https://schema.org",
  "@type": "SoftwareApplication",
  "@id": `${base}/#software`,
  name: "Property Management Network",
  url: base,
  applicationCategory: "BusinessApplication",
  operatingSystem: "Web",
  description:
    "Property management software for independent landlords — track rent, maintenance requests, leases and expenses in one place. Free to start.",
  publisher: { "@id": `${base}/#organization` },
  // AggregateOffer is the correct wrapper for a product sold at several price
  // points; the individual plan Offers are nested inside it.
  offers: {
    "@type": "AggregateOffer",
    priceCurrency: "USD",
    lowPrice: String(Math.min(...planPrices)),
    highPrice: String(Math.max(...planPrices)),
    offerCount: planOffers.length,
    offers: planOffers,
  },
}

// Mirrors the visible FAQ rendered by components/marketing/faq.tsx — both read
// the same lib/marketing/faqs.ts list, so the markup can never drift from the
// copy on the page.
const faqPage: Record<string, unknown> = {
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "@id": `${base}/#faq`,
  mainEntity: FAQS.map((faq) => ({
    "@type": "Question",
    name: faq.q,
    acceptedAnswer: {
      "@type": "Answer",
      text: faq.a,
    },
  })),
}

/**
 * SoftwareApplication + FAQPage JSON-LD. Render this ONLY on `/`, which is the
 * page that actually shows the pricing table and the FAQ accordion.
 */
export function HomeStructuredData() {
  return (
    <>
      <JsonLd data={softwareApplication} />
      <JsonLd data={faqPage} />
    </>
  )
}