Use localNow, return Redis key identifier inside response to improve debugging capability

src/db.ts

@@ -28,12 +28,17 @@ export function getKey(identifier: string, now: Date) {
 	return format(now, 'yyyy-MM-dd') + ':' + identifier;
 }
 
+// TODO; Move away from generating key inside these functions while also returning it.
+
 export async function checkIdentifier(
 	identifier: string,
 	now: Date = new Date()
-): Promise<boolean> {
+): Promise<{ marked: boolean; key: string }> {
 	const key = getKey(identifier, now);
-	return (await redis.get(key)) === '1';
+	return {
+		marked: (await redis.get(key)) === '1',
+		key
+	};
 }
 
 export async function markIdentifier(
@@ -41,8 +46,11 @@ export async function markIdentifier(
 	value: boolean = true,
 	expiry?: number,
 	now: Date = new Date()
-) {
+): Promise<{ key: string }> {
 	const key = getKey(identifier, now);
-	if (expiry == undefined) return await redis.set(key, value ? '1' : '0');
-	return await redis.set(key, value ? '1' : '0', 'EX', expiry);
+
+	if (expiry == undefined) await redis.set(key, value ? '1' : '0');
+	else await redis.set(key, value ? '1' : '0', 'EX', expiry);
+
+	return { key };
 }

src/pages/api/cron.ts

@@ -6,13 +6,14 @@ import { env } from '@/env/server.mjs';
 import monitorAsync from '@/monitor';
 import { sendNotification } from '@/notify';
 import { fetchConfiguration, checkIdentifier, markIdentifier } from '@/db';
+import { localNow } from '@/utils/timezone';
 
 type ResponseData = {
 	diff: number;
 	inRange: boolean;
 };
 
-type StatusData = { status: ResponseStatus };
+type StatusData = { status: ResponseStatus; key?: string };
 
 type ResponseStatus =
 	| 'unauthorized'
@@ -37,27 +38,31 @@ export default async function handler(
 		return;
 	}
 
-	async function innerFunction(): Promise<ResponseStatus> {
-		const now = new Date();
+	async function innerFunction(): Promise<{
+		status: ResponseStatus;
+		key?: string;
+	}> {
+		const now = localNow();
 
 		const config = await fetchConfiguration();
 		const matching = await getMatchingTime(config, now);
 
 		// No matching time - no notification to send.
-		if (matching == null) return 'no-matching-time';
+		if (matching == null) return { status: 'no-matching-time' };
 
 		// Check if I am in range of the center
 		const distanceToCenter = await getDistance();
-		if (distanceToCenter > 280) return 'out-of-range';
+		if (distanceToCenter > 280) return { status: 'out-of-range' };
 
 		// Check if I have already been notified
-		if (await checkIdentifier(matching.name, now)) return 'already-notified';
+		const { marked, key } = await checkIdentifier(matching.name, now);
+		if (marked) return { status: 'already-notified', key };
 
 		// Send notification, mark
 		await sendNotification(`${matching.message} (${matching.name})`);
 		await markIdentifier(matching.name, true, 60 * 60 * 24 * 31, now);
 
-		return 'notified';
+		return { status: 'notified', key };
 	}
 
 	try {
@@ -65,7 +70,7 @@ export default async function handler(
 		if (process.env.NODE_ENV === 'production')
 			result = await monitorAsync(innerFunction);
 		else result = await innerFunction();
-		res.status(200).json({ status: result });
+		res.status(200).json({ status: result.status, key: result.key });
 	} catch (e) {
 		console.error(e);
 		res.status(500).json({ status: 'error' });