Feature: Add Ferdium Translator (#548)

Add feature to translate text natively using https://github.com/shikar/NODE_GOOGLE_TRANSLATE package and a LibreTranslate self-hosted option (already running on our server on https://translator.ferdium.org).

1 files changed, 47 insertions, 0 deletions

diff --git a/src/helpers/translation-helpers.ts b/src/helpers/translation-helpers.ts
new file mode 100644
index 000000000..215b2a49c
--- /dev/null
+++ b/src/helpers/translation-helpers.ts
@@ -0,0 +1,47 @@
+import fetch from 'node-fetch';
+import translateGoogle from 'translate-google';
+import { LIVE_API_FERDIUM_LIBRETRANSLATE } from '../config';
+
+export async function translateTo(
+  text: string,
+  translateToLanguage: string,
+  translatorEngine: string,
+): Promise<{ text: string; error: boolean }> {
+  const errorText =
+    // TODO: Need to support i18n
+    'FERDIUM ERROR: An error occured. Please select less text to translate or try again later.';
+
+  if (translatorEngine === 'Google') {
+    try {
+      const res = await translateGoogle(text, {
+        to: translateToLanguage,
+      });
+
+      return { text: res, error: false };
+    } catch {
+      return { text: errorText, error: true };
+    }
+  } else if (translatorEngine === 'LibreTranslate') {
+    try {
+      const res = await fetch(LIVE_API_FERDIUM_LIBRETRANSLATE, {
+        method: 'POST',
+        body: JSON.stringify({
+          q: text,
+          source: 'auto',
+          target: translateToLanguage,
+        }),
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      });
+
+      const response = await res.json();
+
+      return { text: response.translatedText, error: false };
+    } catch {
+      return { text: errorText, error: true };
+    }
+  }
+
+  return { text: errorText, error: true };
+}