import { getLotusRoomPermalink } from '../plugins/lotus-permalink';

/**
 * The public web app's address from config.json `webAppUrl` (the desktop app
 * sets it; its own origin is a local server). Absolute https only; anything
 * else is ignored.
 */
export const resolveWebAppUrl = (value: unknown): string | undefined => {
  if (typeof value !== 'string' || value.trim() === '') return undefined;
  try {
    const url = new URL(value);
    if (url.protocol !== 'https:') return undefined;
    return url.origin + url.pathname.replace(/\/+$/, '');
  } catch {
    return undefined;
  }
};

/**
 * Where to send the user to take a call this app can't make: the room in the
 * web app (they press Join there themselves — never an auto-join link, which
 * a crafted URL could abuse to open someone's mic).
 */
export const getCallInBrowserUrl = (
  webAppUrl: string | undefined,
  roomId: string,
): string | undefined => (webAppUrl ? getLotusRoomPermalink(webAppUrl, roomId) : undefined);