signoz/frontend/src/utils/metricsTimeStorageUtils.ts

import getLocalStorageKey from 'api/browser/localstorage/get';
import setLocalStorageKey from 'api/browser/localstorage/set';
import { LOCALSTORAGE } from 'constants/localStorage';

/**
 * Updates the stored time duration for a route in localStorage.
 * Used by both DateTimeSelectionV2 (manual time pick) and useZoomOut (zoom out button).
 *
 * @param pathname - The route path (e.g. /infrastructure-monitoring/hosts)
 * @param value - The time value to store (preset string like '1w' or JSON string for custom range)
 */
export function persistTimeDurationForRoute(
	pathname: string,
	value: string,
): void {
	const preRoutes = getLocalStorageKey(LOCALSTORAGE.METRICS_TIME_IN_DURATION);
	let preRoutesObject: Record<string, string> = {};
	try {
		preRoutesObject = preRoutes ? JSON.parse(preRoutes) : {};
	} catch {
		preRoutesObject = {};
	}
	const preRoute = { ...preRoutesObject, [pathname]: value };
	setLocalStorageKey(
		LOCALSTORAGE.METRICS_TIME_IN_DURATION,
		JSON.stringify(preRoute),
	);
}