ImageUtils.js

import md5 from "md5";
import { getRandomNumber } from "./Algos";

export const getRandomAvatar = () => {
  const randomNumber = getRandomNumber(1, 6);

  if (window.location.origin.includes("localhost")) {
    return "https://yoda.hypeople.studio/yoda-admin-template/react/static/media/memoji-1.afa5922f.png";
  }

  return `https://app.requestly.io/assets/img/memoji/png/analytics-marketing-team-${randomNumber}.png`;
};

export const generateGravatarURL = (email = "sagar@requestly.io") => {
  return `https://www.gravatar.com/avatar/${md5(email)}?s=200&d=${getRandomAvatar()}`;
};

/**
 * True when `url`'s host is Gravatar. Parses the URL and matches on the hostname
 * rather than a substring — `url.includes("gravatar.com")` would also match
 * unrelated hosts such as `gravatar.com.evil.com` or `host/path?ref=gravatar.com`.
 * Unparseable values return false (treated as "not a Gravatar URL").
 */
const isGravatarUrl = (url) => {
  try {
    const host = new URL(url).hostname.toLowerCase();
    return host === "gravatar.com" || host.endsWith(".gravatar.com");
  } catch {
    return false;
  }
};

/**
 * Resolves the avatar to display for a user.
 *
 * Precedence: the auth provider's photo (e.g. Google) when we have a real one,
 * otherwise a Gravatar resolved live from the current login email — so changes a
 * user makes on Gravatar are reflected here. For email/password accounts we persist
 * a synthetic gravatar.com URL as `photoURL`, so any Gravatar-hosted value is treated
 * as "no provider photo" and re-resolved live from the email. `d=mp` is Gravatar's
 * deterministic fallback, shown when the email has no Gravatar image.
 */
export const getUserAvatarUrl = (email = "", providerPhotoURL = "") => {
  if (providerPhotoURL && !isGravatarUrl(providerPhotoURL)) {
    return providerPhotoURL;
  }
  return `https://www.gravatar.com/avatar/${md5(email)}?s=200&d=mp`;
};