import { useLocation } from "react-router-dom";
import { useSettings } from "@settings/contexts/SettingsContext";

export interface PlatformFrameUrlOptions {
  /** Hash path appended directly after /#/ (skips the site-scoped route/siteId/siteUrl construction). */
  overridePath?: string;
  /** Site-scoped route - used when overridePath is not set. Builds /#/{route}/{siteId}/{siteUrl}. */
  route?: string;
  /** Whether to include _wpnonce params (not needed for signup). callback_url is always included. Defaults to true. Defaults to true. */
  includeAdminParams?: boolean;
}

const normalizeSiteUrl = (rawUrl: string): string =>
  (rawUrl || "")
    .replace(/^https?:\/\//, "")
    .replace(/\/$/, "")
    .replace(/:\d+$/, "")
    .replace(/^localhost$/, "localhost.com");

/**
 * Builds the hash URL for an embedded platform.biogr.id iframe view.
 *
 * For site-scoped `route`s (overview/preferences), also carries forward the
 * same location.state-driven params (getAPI/startChat/api_verified) that the
 * old single Dashboard page used to append, so existing
 * navigate("/dashboard/overview", {state}) callers keep working (see WP-4406).
 * `action=goPremium` is now driven solely by `sfsyncData.is_premium` (see
 * WP-4505 — the Upgrade Plan popovers navigate to /upgrade-plan (see
 * WP-4564) directly instead of setting location.state.goPremium).
 */
export const usePlatformFrameUrl = ({
  overridePath,
  route,
  includeAdminParams = true,
}: PlatformFrameUrlOptions): string => {
  const { initialSettings } = useSettings();
  const location = useLocation();
  const { platformUrl } = process.env.CONFIG;

  const basePlatformUrl = (platformUrl || "").replace(/\/$/, "");
  const siteId = initialSettings?.siteId || sfsyncData.siteId || "";
  const siteUrl = normalizeSiteUrl(sfsyncData.siteUrl);
  const pluginVersion = encodeURIComponent(sfsyncRestAPI.pluginVersion || "");
  const adminUrl = sfsyncData.dashboard_url || "";

  const path = overridePath ?? `${route}/${siteId}/${siteUrl}`;

  let iframeURL = `${basePlatformUrl}/#/${path}?plugin_name=biogrid-wp&plugin_version=${pluginVersion}`;

  if (includeAdminParams) {
    iframeURL += `&_wpnonce=${encodeURIComponent(sfsyncRestAPI.nonceValue || "")}`;
  }

  iframeURL += `&site_url=${encodeURIComponent(siteUrl)}`;

  if (adminUrl) {
    iframeURL += `&callback_url=${encodeURIComponent(adminUrl)}`;
  }

  if (route) {
    const { is_premium: isPremium } = sfsyncData;
    const apiKeyVerified = initialSettings?.api_key_verified ?? false;
    const apiKey = initialSettings?.api_key ?? "";

    if (isPremium) {
      iframeURL += "&action=goPremium";
    }

    if (location?.state?.getAPI) {
      iframeURL += "&getAPI=true";
    }

    if (apiKeyVerified) {
      iframeURL += `&api_verified=${apiKeyVerified}&api_key=${apiKey}`;
    }

    if (location?.state?.startChat) {
      iframeURL += "&startChat=Hello,%20I%20need%20support...";
    }
  }

  return iframeURL;
};