Make @ditto/translators its own package

deno.json

@@ -7,6 +7,7 @@
     "./packages/ditto",
     "./packages/lang",
     "./packages/metrics",
+    "./packages/translators",
     "./packages/uploaders"
   ],
   "tasks": {

packages/ditto/app.ts

@@ -1,6 +1,7 @@
 import { confMw } from '@ditto/api/middleware';
 import { type DittoConf } from '@ditto/conf';
 import { DittoTables } from '@ditto/db';
+import { type DittoTranslator } from '@ditto/translators';
 import { type Context, Env as HonoEnv, Handler, Hono, Input as HonoInput, MiddlewareHandler } from '@hono/hono';
 import { every } from '@hono/hono/combine';
 import { cors } from '@hono/hono/cors';
@@ -134,7 +135,6 @@ import { metricsController } from '@/controllers/metrics.ts';
 import { manifestController } from '@/controllers/manifest.ts';
 import { nodeInfoController, nodeInfoSchemaController } from '@/controllers/well-known/nodeinfo.ts';
 import { nostrController } from '@/controllers/well-known/nostr.ts';
-import { DittoTranslator } from '@/interfaces/DittoTranslator.ts';
 import { auth98Middleware, requireProof, requireRole } from '@/middleware/auth98Middleware.ts';
 import { cacheControlMiddleware } from '@/middleware/cacheControlMiddleware.ts';
 import { cspMiddleware } from '@/middleware/cspMiddleware.ts';

packages/ditto/middleware/translatorMiddleware.ts

@@ -1,8 +1,7 @@
+import { DeepLTranslator, LibreTranslateTranslator } from '@ditto/translators';
 import { safeFetch } from '@soapbox/safe-fetch';
 
 import { AppMiddleware } from '@/app.ts';
-import { DeepLTranslator } from '@/translators/DeepLTranslator.ts';
-import { LibreTranslateTranslator } from '@/translators/LibreTranslateTranslator.ts';
 
 /** Set the translator used for translating posts. */
 export const translatorMiddleware: AppMiddleware = async (c, next) => {

packages/ditto/test.ts

@@ -1,6 +1,4 @@
 import { DittoDB } from '@ditto/db';
-import ISO6391, { LanguageCode } from 'iso-639-1';
-import lande from 'lande';
 import { NostrEvent } from '@nostrify/nostrify';
 import { finalizeEvent, generateSecretKey } from 'nostr-tools';
 
@@ -68,15 +66,3 @@ export async function createTestDB(opts?: { pure?: boolean }) {
 export function sleep(ms: number): Promise<void> {
   return new Promise((resolve) => setTimeout(resolve, ms));
 }
-
-export function getLanguage(text: string): LanguageCode | undefined {
-  const [topResult] = lande(text);
-  if (topResult) {
-    const [iso6393] = topResult;
-    const locale = new Intl.Locale(iso6393);
-    if (ISO6391.validate(locale.language)) {
-      return locale.language;
-    }
-  }
-  return;
-}

packages/translators/DeepLTranslator.test.ts

@@ -1,14 +1,14 @@
+import { DittoConf } from '@ditto/conf';
+import { detectLanguage } from '@ditto/lang';
 import { assert, assertEquals } from '@std/assert';
 
-import { Conf } from '@/config.ts';
-import { DeepLTranslator } from '@/translators/DeepLTranslator.ts';
-import { getLanguage } from '@/test.ts';
+import { DeepLTranslator } from './DeepLTranslator.ts';
 
 const {
   deeplBaseUrl: baseUrl,
   deeplApiKey: apiKey,
   translationProvider,
-} = Conf;
+} = new DittoConf(Deno.env);
 
 const deepl = 'deepl';
 
@@ -28,9 +28,9 @@ Deno.test('DeepL translation with source language omitted', {
   );
 
   assertEquals(data.source_lang, 'pt');
-  assertEquals(getLanguage(data.results[0]), 'en');
-  assertEquals(getLanguage(data.results[1]), 'en');
-  assertEquals(getLanguage(data.results[2]), 'en');
+  assertEquals(detectLanguage(data.results[0], 0), 'en');
+  assertEquals(detectLanguage(data.results[1], 0), 'en');
+  assertEquals(detectLanguage(data.results[2], 0), 'en');
 });
 
 Deno.test('DeepL translation with source language set', {
@@ -49,9 +49,9 @@ Deno.test('DeepL translation with source language set', {
   );
 
   assertEquals(data.source_lang, 'pt');
-  assertEquals(getLanguage(data.results[0]), 'en');
-  assertEquals(getLanguage(data.results[1]), 'en');
-  assertEquals(getLanguage(data.results[2]), 'en');
+  assertEquals(detectLanguage(data.results[0], 0), 'en');
+  assertEquals(detectLanguage(data.results[1], 0), 'en');
+  assertEquals(detectLanguage(data.results[2], 0), 'en');
 });
 
 Deno.test("DeepL translation doesn't alter Nostr URIs", {

packages/translators/DeepLTranslator.ts

@@ -1,8 +1,9 @@
-import { LanguageCode } from 'iso-639-1';
 import { z } from 'zod';
 
-import { DittoTranslator } from '@/interfaces/DittoTranslator.ts';
-import { languageSchema } from '@/schema.ts';
+import { languageSchema } from './schema.ts';
+
+import type { LanguageCode } from 'iso-639-1';
+import type { DittoTranslator } from './DittoTranslator.ts';
 
 interface DeepLTranslatorOpts {
   /** DeepL base URL to use. Default: 'https://api.deepl.com' */

packages/translators/LibreTranslateTranslator.test.ts

@@ -1,14 +1,14 @@
+import { DittoConf } from '@ditto/conf';
+import { detectLanguage } from '@ditto/lang';
 import { assertEquals } from '@std/assert';
 
-import { Conf } from '@/config.ts';
-import { LibreTranslateTranslator } from '@/translators/LibreTranslateTranslator.ts';
-import { getLanguage } from '@/test.ts';
+import { LibreTranslateTranslator } from './LibreTranslateTranslator.ts';
 
 const {
   libretranslateBaseUrl: baseUrl,
   libretranslateApiKey: apiKey,
   translationProvider,
-} = Conf;
+} = new DittoConf(Deno.env);
 
 const libretranslate = 'libretranslate';
 
@@ -28,9 +28,9 @@ Deno.test('LibreTranslate translation with source language omitted', {
   );
 
   assertEquals(data.source_lang, 'pt');
-  assertEquals(getLanguage(data.results[0]), 'ca');
-  assertEquals(getLanguage(data.results[1]), 'ca');
-  assertEquals(getLanguage(data.results[2]), 'ca');
+  assertEquals(detectLanguage(data.results[0], 0), 'ca');
+  assertEquals(detectLanguage(data.results[1], 0), 'ca');
+  assertEquals(detectLanguage(data.results[2], 0), 'ca');
 });
 
 Deno.test('LibreTranslate translation with source language set', {
@@ -49,7 +49,7 @@ Deno.test('LibreTranslate translation with source language set', {
   );
 
   assertEquals(data.source_lang, 'pt');
-  assertEquals(getLanguage(data.results[0]), 'ca');
-  assertEquals(getLanguage(data.results[1]), 'ca');
-  assertEquals(getLanguage(data.results[2]), 'ca');
+  assertEquals(detectLanguage(data.results[0], 0), 'ca');
+  assertEquals(detectLanguage(data.results[1], 0), 'ca');
+  assertEquals(detectLanguage(data.results[2], 0), 'ca');
 });

packages/translators/LibreTranslateTranslator.ts

@@ -1,8 +1,9 @@
-import { LanguageCode } from 'iso-639-1';
 import { z } from 'zod';
 
-import { DittoTranslator } from '@/interfaces/DittoTranslator.ts';
-import { languageSchema } from '@/schema.ts';
+import { languageSchema } from './schema.ts';
+
+import type { LanguageCode } from 'iso-639-1';
+import type { DittoTranslator } from './DittoTranslator.ts';
 
 interface LibreTranslateTranslatorOpts {
   /** Libretranslate endpoint to use. Default: 'https://libretranslate.com' */

packages/translators/deno.json

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

packages/translators/mod.ts

@@ -0,0 +1,4 @@
+export { DeepLTranslator } from './DeepLTranslator.ts';
+export { LibreTranslateTranslator } from './LibreTranslateTranslator.ts';
+
+export type { DittoTranslator } from './DittoTranslator.ts';

packages/translators/schema.ts

@@ -0,0 +1,8 @@
+import ISO6391 from 'iso-639-1';
+import z from 'zod';
+
+/** Value is a ISO-639-1 language code. */
+export const languageSchema = z.string().refine(
+  (val) => ISO6391.validate(val),
+  { message: 'Not a valid language in ISO-639-1 format' },
+);