first commit

ui/lib/utils/timeRange.ts

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+export const TIME_PERIODS = [
+	{ label: "Last hour", value: "1h" },
+	{ label: "Last 6 hours", value: "6h" },
+	{ label: "Last 24 hours", value: "24h" },
+	{ label: "Last 7 days", value: "7d" },
+	{ label: "Last 30 days", value: "30d" },
+];
+
+export type TimePeriod = (typeof TIME_PERIODS)[number]["value"];
+
+/** Returns a fresh { from, to } Date pair for the given relative period string. */
+export function getRangeForPeriod(period: string): { from: Date; to: Date } {
+	const to = new Date();
+	const from = new Date(to.getTime());
+	switch (period) {
+		case "1h":
+			from.setHours(from.getHours() - 1);
+			break;
+		case "6h":
+			from.setHours(from.getHours() - 6);
+			break;
+		case "24h":
+			from.setHours(from.getHours() - 24);
+			break;
+		case "7d":
+			from.setDate(from.getDate() - 7);
+			break;
+		case "30d":
+			from.setDate(from.getDate() - 30);
+			break;
+		default:
+			from.setHours(from.getHours() - 1);
+	}
+	return { from, to };
+}
+
+/** Returns unix timestamps (seconds) for the given relative period string. */
+export function getUnixRangeForPeriod(period: string): { start: number; end: number } {
+	const { from, to } = getRangeForPeriod(period);
+	return {
+		start: Math.floor(from.getTime() / 1000),
+		end: Math.floor(to.getTime() / 1000),
+	};
+}