import { env } from "@/env/server"

import type { BreadcrumbList, ListItem, WithContext } from "schema-dts"

import type { Breadcrumbs } from "@/types/trpc/routers/contentstack/breadcrumbs"

export function generateBreadcrumbsSchema(breadcrumbs: Breadcrumbs) {
  const itemListElement: ListItem[] = breadcrumbs.map((item, index) => ({
    "@type": "ListItem",
    position: index + 1,
    name: item.title,
    // Only include "item" if "href" exists; otherwise, omit it
    ...(item.href ? { item: `${env.PUBLIC_URL}${item.href}` } : {}),
  }))

  const jsonLd: WithContext<BreadcrumbList> = {
    "@context": "https://schema.org",
    "@type": "BreadcrumbList",
    itemListElement,
  }

  return {
    key: "breadcrumbs",
    type: "application/ld+json",
    jsonLd,
  }
}