// assetVersion.js — ONE cache-buster for every React <img> that loads a /sprites/ file.
// The user swaps sprite PNGs on disk keeping the same filename; with a bare URL the browser
// serves a stale cached copy (this bit us on the card faces, then the win/loss panels).
// A single fresh value per page load makes every art swap show up on a plain reload.
// (Pixi-loaded textures have their own equivalent buster in pixi/assets.js.)
export const ASSET_VERSION = Date.now();

/** Append the per-page-load cache-buster to a URL (handles URLs that already have a query). */
export const bust = (url) => `${url}${url.includes('?') ? '&' : '?'}v=${ASSET_VERSION}`;