Epicnabbo-Catalogus-Updated-Daily/src/lib/redis.ts

import "server-only";

import Redis from "ioredis";

const globalForRedis = globalThis as unknown as { redis?: Redis | null };

function createRedis(): Redis | null {
	const url = process.env.REDIS_URL;
	if (!url) return null;
	try {
		const client = new Redis(url, {
			maxRetriesPerRequest: 3,
			retryStrategy(times) {
				if (times > 3) return null;
				return Math.min(times * 200, 2000);
			},
			lazyConnect: true,
		});
		client.on("error", () => {});
		return client;
	} catch {
		return null;
	}
}

export const redis: Redis | null =
	globalForRedis.redis !== undefined ? globalForRedis.redis : createRedis();
if (globalForRedis.redis === undefined) globalForRedis.redis = redis;

export async function withRedis<T>(
	fallback: () => Promise<T>,
	redisFn: (client: Redis) => Promise<T>,
): Promise<T> {
	if (redis) {
		try {
			return await redisFn(redis);
		} catch {
			return fallback();
		}
	}
	return fallback();
}