export function pickVariantKey(
  input: { variants: Array<{ kind: string; size: number; key: string }> },
  req: { kind: string; size: number },
) {
  const v = input.variants.find(
    (x) => x.kind === req.kind && x.size === req.size,
  );
  return v?.key ?? null;
}

export function pickLegacyKeyForRequest(
  input: {
    asset: {
      thumb_small_key: string | null;
      thumb_med_key: string | null;
      poster_key: string | null;
    };
  },
  req: { kind: string; size: number },
) {
  if (req.kind === "thumb" && req.size === 256) {
    return input.asset.thumb_small_key ?? null;
  }
  if (req.kind === "thumb" && req.size === 768) {
    return input.asset.thumb_med_key ?? null;
  }
  if (req.kind === "poster" && req.size === 256) {
    return input.asset.poster_key ?? null;
  }
  return null;
}