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Use @isaacs/ttlcache for honeypot config (#216) #274

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Merged
vcarl merged 1 commit into from
Feb 6, 2026
Merged

Use @isaacs/ttlcache for honeypot config (#216) #274

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22 changes: 10 additions & 12 deletions app/discord/honeypotTracker.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
import { ChannelType, Events, type Client } from "discord.js";

import TTLCache from "@isaacs/ttlcache";

import { db, run } from "#~/AppRuntime";
import { logUserMessageLegacy } from "#~/commands/report/userLog.ts";
import { featureStats } from "#~/helpers/metrics";
Expand All @@ -12,13 +14,12 @@ interface HoneypotConfig {
channel_id: string;
}

const CACHE_TTL_IN_MS = 1000 * 60 * 10; // reload cache entries every 10 minutes

export async function startHoneypotTracking(client: Client) {
const configCache = {} as Record<
string,
{ config: HoneypotConfig[]; cachedAt: number }
>;
// TTL cache for honeypot configs - 10 minute TTL, max 1000 guilds
const configCache = new TTLCache<string, HoneypotConfig[]>({
ttl: 10 * 60 * 1000, // 10 minutes
max: 1000, // max 1000 guilds cached
});
client.on(Events.MessageCreate, async (msg) => {
if (msg.author.system) return;
if (msg.channel.type !== ChannelType.GuildText || msg.author.bot) {
Expand All @@ -37,25 +38,22 @@ export async function startHoneypotTracking(client: Client) {
);
throw Error("Missing guild info when tracking honeypot messages");
}
let config: HoneypotConfig[];
const { guild } = msg;
const cacheEntry = configCache[msg.guildId];
if (!cacheEntry || cacheEntry.cachedAt + CACHE_TTL_IN_MS < Date.now()) {
let config = configCache.get(msg.guildId);
if (!config) {
config = await run(
db
.selectFrom("honeypot_config")
.selectAll()
.where("guild_id", "=", msg.guildId),
);

configCache[msg.guildId] = { config, cachedAt: Date.now() };
configCache.set(msg.guildId, config);
log(
"debug",
"HoneypotTracking",
`Added config to in-memory cache for guildId ${msg.guildId}`,
);
} else {
config = cacheEntry.config;
}

if (!config.some((c) => c.channel_id === msg.channelId)) {
Expand Down