feat: core chunk 5

src/core/blitzkrieg/getTimeDaysAgo.ts

@@ -0,0 +1,20 @@
+import { Region } from '../../constants/regions';
+
+export const TIME_ZONE_MAPPINGS: Record<Region, number> = {
+  com: -5, // Central North American Time
+  eu: +1, // Central European Time
+  asia: +7, // Central Asia Standard Time
+};
+
+export default function getTimeDaysAgo(region: Region, daysAgo: number) {
+  const now = new Date();
+  if (daysAgo === 0) now.getTime() / 1000;
+
+  const time = new Date();
+
+  time.setUTCHours(-TIME_ZONE_MAPPINGS[region], 0, 0, 0);
+  if (time > now) time.setUTCDate(time.getUTCDate() - 1);
+  time.setUTCDate(time.getUTCDate() - daysAgo + 1);
+
+  return time.getTime() / 1000;
+}