import type {
  PublicAuditLookupResult,
  PublicAuditOffer,
  PublicAuditRenderState,
} from "./public-audit-types";

const isSafeCtaHref = (href: string) => {
  try {
    const parsed = new URL(href);
    return parsed.protocol === "https:" || parsed.protocol === "mailto:" || parsed.protocol === "tel:";
  } catch {
    return href.startsWith("/");
  }
};

const sanitizeOffer = (offer: PublicAuditOffer): PublicAuditOffer => {
  if (!offer.ctaHref || isSafeCtaHref(offer.ctaHref)) {
    return offer;
  }

  return {
    body: offer.body,
    ctaLabel: offer.ctaLabel,
  };
};

export const toPublicAuditRenderState = (
  result: PublicAuditLookupResult,
): PublicAuditRenderState => {
  if (!result || result.publicationStatus === "deactivated") {
    return { kind: "unavailable" };
  }

  if (result.publicationStatus !== "published") {
    return { kind: "pending" };
  }

  return {
    kind: "published",
    audit: {
      companyName: result.companyName,
      domain: result.domain,
      publishedAt: result.publishedAt,
      headline: result.publicContent.headline,
      intro: result.publicContent.intro,
      observations: result.publicContent.observations,
      finalOffer: sanitizeOffer(result.publicContent.finalOffer),
      screenshots: result.screenshots,
    },
  };
};