language improvements

src/commands/language/translate.ts

@@ -11,12 +11,11 @@ import {
   getTargetLanguages,
   isSourceLanguageSupported,
   isTargetLanguageSupported,
-  languageCodeToName,
   translate,
 } from "../../utils/deepl";
 import { abort } from "../../utils/error";
 import type { OCRResult } from "../../types/ocr";
-import { capitalize } from "../../utils/functions";
+import { capitalize, languageCodeToName } from "../../utils/functions";
 
 export async function translateAutocompleteImpl(
   interaction: AutocompleteInteraction
@@ -55,8 +54,8 @@ export async function translateImpl(
     target,
   });
 
-  const displaySource = await languageCodeToName(detectedSourceLang);
-  const displayTarget = await languageCodeToName(target);
+  const displaySource = languageCodeToName(detectedSourceLang);
+  const displayTarget = languageCodeToName(target);
 
   if (translatedText.length > 4096) {
     return {

src/commands/ocr/ocr.ts

@@ -12,6 +12,7 @@ import sharp from "sharp";
 import {
   capitalize,
   getImageFromAttachmentOrString,
+  languageCodeToName,
   run,
 } from "../../utils/functions";
 import { lensOcr } from "../../utils/lens";
@@ -23,16 +24,7 @@ export function buildOcrPayload(
   model: OCRResult["model"],
   imageUrl?: string
 ): InteractionEditReplyOptions {
-  const languageName = run(() => {
-    try {
-      return (
-        new Intl.DisplayNames(["en"], { type: "language" }).of(language) ??
-        "Unknown"
-      );
-    } catch {
-      return "Unknown";
-    }
-  });
+  const languageName = languageCodeToName(language) ?? "Unknown";
 
   if (text.length > 4096) {
     return {

src/utils/deepl.ts

@@ -36,22 +36,18 @@ export async function getLanguages() {
   return (await getSourceLanguages()).concat(await getTargetLanguages());
 }
 
-export async function languageCodeToName(code: string) {
-  return (await getLanguages()).find((l) => l.code === code)?.name;
-}
-
 export async function isSourceLanguageSupported(code: string) {
+  const sourceLanguages = await getSourceLanguages();
   return (
-    (await getSourceLanguages()).find(
-      (l) => l.code.toLowerCase() === code.toLowerCase()
-    ) !== undefined
+    sourceLanguages.find((l) => l.code.toLowerCase() === code.toLowerCase()) !==
+    undefined
   );
 }
 
 export async function isTargetLanguageSupported(code: string) {
+  const targetLanguages = await getTargetLanguages();
   return (
-    (await getTargetLanguages()).find(
-      (l) => l.code.toLowerCase() === code.toLowerCase()
-    ) !== undefined
+    targetLanguages.find((l) => l.code.toLowerCase() === code.toLowerCase()) !==
+    undefined
   );
 }

src/utils/functions.ts

@@ -7,6 +7,7 @@ import { abort } from "./error";
 
 export const nanoid = customAlphabet("1234567890abcdef");
 export const shell = execa({ reject: false });
+const languageNames = new Intl.DisplayNames(["en"], { type: "language" });
 
 export function noop() {}
 
@@ -96,3 +97,11 @@ export function getImageFromAttachmentOrString(
     abort("You must provide an image or an image URL!");
   }
 }
+
+export function languageCodeToName(code: string) {
+  try {
+    return languageNames.of(code);
+  } catch {
+    return undefined;
+  }
+}