Make @ditto/ratelimiter its own package

deno.json

@@ -8,6 +8,7 @@
     "./packages/lang",
     "./packages/metrics",
     "./packages/policies",
+    "./packages/ratelimiter",
     "./packages/translators",
     "./packages/uploaders"
   ],

packages/ditto/controllers/nostr/relay.ts

@@ -1,5 +1,6 @@
 import { type DittoConf } from '@ditto/conf';
 import { relayConnectionsGauge, relayEventsCounter, relayMessagesCounter } from '@ditto/metrics';
+import { MemoryRateLimiter, MultiRateLimiter, type RateLimiter } from '@ditto/ratelimiter';
 import { logi } from '@soapbox/logi';
 import { JsonValue } from '@std/json';
 import {
@@ -20,9 +21,6 @@ import { RelayError } from '@/RelayError.ts';
 import { Storages } from '@/storages.ts';
 import { errorJson } from '@/utils/log.ts';
 import { purifyEvent } from '@/utils/purify.ts';
-import { MemoryRateLimiter } from '@/utils/ratelimiter/MemoryRateLimiter.ts';
-import { MultiRateLimiter } from '@/utils/ratelimiter/MultiRateLimiter.ts';
-import { RateLimiter } from '@/utils/ratelimiter/types.ts';
 import { Time } from '@/utils/time.ts';
 
 /** Limit of initial events returned for a subscription. */

packages/ratelimiter/MemoryRateLimiter.ts

@@ -1,5 +1,6 @@
 import { RateLimitError } from './RateLimitError.ts';
-import { RateLimiter, RateLimiterClient } from './types.ts';
+
+import type { RateLimiter, RateLimiterClient } from './types.ts';
 
 interface MemoryRateLimiterOpts {
   limit: number;

packages/ratelimiter/MultiRateLimiter.ts

@@ -1,4 +1,4 @@
-import { RateLimiter, RateLimiterClient } from './types.ts';
+import type { RateLimiter, RateLimiterClient } from './types.ts';
 
 export class MultiRateLimiter {
   constructor(private limiters: RateLimiter[]) {}

packages/ratelimiter/RateLimitError.ts

@@ -1,4 +1,4 @@
-import { RateLimiter, RateLimiterClient } from './types.ts';
+import type { RateLimiter, RateLimiterClient } from './types.ts';
 
 export class RateLimitError extends Error {
   constructor(

packages/ratelimiter/deno.json

@@ -0,0 +1,7 @@
+{
+  "name": "@ditto/ratelimiter",
+  "version": "1.1.0",
+  "exports": {
+    ".": "./mod.ts"
+  }
+}

packages/ratelimiter/mod.ts

@@ -0,0 +1,5 @@
+export { MemoryRateLimiter } from './MemoryRateLimiter.ts';
+export { MultiRateLimiter } from './MultiRateLimiter.ts';
+export { RateLimitError } from './RateLimitError.ts';
+
+export type { RateLimiter, RateLimiterClient } from './types.ts';