website: redesign part 1

website/scripts/utils/price.js

@@ -1,36 +0,0 @@
-let _latest = /** @type {number | null} */ (null);
-
-/** @type {Set<(price: number) => void>} */
-const listeners = new Set();
-
-/** @param {(price: number) => void} callback */
-export function onPrice(callback) {
-  listeners.add(callback);
-  if (_latest !== null) callback(_latest);
-  return () => listeners.delete(callback);
-}
-
-export function latestPrice() {
-  return _latest;
-}
-
-/** @param {BrkClient} brk */
-export function initPrice(brk) {
-  async function poll() {
-    try {
-      const price = await brk.getLivePrice();
-      if (price !== _latest) {
-        _latest = price;
-        listeners.forEach((cb) => cb(price));
-      }
-    } catch (e) {
-      console.error("price poll:", e);
-    }
-  }
-
-  poll();
-  setInterval(poll, 1_000);
-  document.addEventListener("visibilitychange", () => {
-    !document.hidden && poll();
-  });
-}