Integration/human readable time (#405)

* refactor: remove unused code

* feat: add human readable values to message parsing

---------

Co-authored-by: Fabian Posenau <fabian@fphome.de>
Co-authored-by: cv <34649812+cpvalente@users.noreply.github.com>

packages/utils/src/date-utils/formatDisplay.ts

@@ -0,0 +1,31 @@
+import { mts } from '../timeConstants.js';
+
+/**
+ * another go at simpler string formatting (counters) -- Copied from client code
+ * @description Converts seconds to string representing time
+ * @param {number | null} milliseconds - time in seconds
+ * @param {boolean} [hideZero] - whether to show hours in case its 00
+ * @returns {string} String representing absolute time 00:12:02
+ */
+export function formatDisplay(milliseconds: number | null, hideZero = false): string {
+  if (typeof milliseconds !== 'number') {
+    return hideZero ? '00:00' : '00:00:00';
+  }
+
+  // add an extra 0 if necessary
+  const format = (val: number) => `0${Math.floor(val)}`.slice(-2);
+
+  const s = Math.abs(millisToSeconds(milliseconds));
+  const hours = Math.floor((s / 3600) % 24);
+  const minutes = Math.floor((s % 3600) / 60);
+
+  if (hideZero && hours < 1) return [minutes, s % 60].map(format).join(':');
+  return [hours, minutes, s % 60].map(format).join(':');
+}
+
+export const millisToSeconds = (millis: number | null): number => {
+  if (millis === null) {
+    return 0;
+  }
+  return millis < 0 ? Math.ceil(millis / mts) : Math.floor(millis / mts);
+};