Add multilanguage support with per-language rejection phrases

README.md

@@ -50,6 +50,27 @@ Use it in apps, bots, landing pages, Slack integrations, rejection letters, or w
 
 ---
 
+## 🌐 Language Support
+
+No-as-a-Service supports multiple languages based on the `Accept-Language` header:
+
+### Example Request with Language Preference
+```http
+GET /no
+Accept-Language: fr
+```
+
+### Currently Supported Languages
+- English (en) - Default
+- German (de)
+- French (fr)
+
+### Contributing Translations
+We welcome contributions for new languages! Simply create a new JSON file in the `reasons` directory:
+1. Name it using the 2-letter language code (e.g., `es.json` for Spanish)
+2. Add your creative rejection phrases as a JSON array
+3. Submit a pull request
+
 ## 🛠️ Self-Hosting
 
 Want to run it yourself? It’s lightweight and simple.

index.js

@@ -1,13 +1,40 @@
 const express = require('express');
 const rateLimit = require('express-rate-limit');
 const fs = require('fs');
+const path = require('path');
 
 const app = express();
 app.set('trust proxy', true);
 const PORT = process.env.PORT || 3000;
 
-// Load reasons from JSON
-const reasons = JSON.parse(fs.readFileSync('./reasons.json', 'utf-8'));
+const availableLanguages = {
+  'en': 'en.json',
+  'de': 'de.json',
+  'fr': 'fr.json',
+};
+
+// Default language
+const defaultLanguage = 'en';
+
+// Load reasons based on language
+function getReasons(lang) {
+  try {
+    const languageFile = availableLanguages[lang] || availableLanguages[defaultLanguage];
+    const filePath = path.join(__dirname, 'reasons', languageFile);
+
+    // Check if the file exists
+    if (fs.existsSync(filePath)) {
+      return JSON.parse(fs.readFileSync(filePath, 'utf-8'));
+    }
+
+    // Fallback to English if file doesn't exist
+    return JSON.parse(fs.readFileSync(path.join(__dirname, 'reasons', availableLanguages[defaultLanguage]), 'utf-8'));
+  } catch (error) {
+    console.error(`Error loading language file: ${error}`);
+    // Return a single reason as emergency fallback
+    return ["Sorry, I can't do that right now."];
+  }
+}
 
 // Rate limiter: 120 requests per minute per IP
 const limiter = rateLimit({
@@ -23,11 +50,32 @@ app.use(limiter);
 
 // Random rejection reason endpoint
 app.get('/no', (req, res) => {
+  // Parse Accept-Language header
+  const acceptLanguage = req.headers['accept-language'];
+  let lang = defaultLanguage;
+
+  if (acceptLanguage) {
+    // Extract language code (e.g., 'en-US' -> 'en')
+    const requestedLanguages = acceptLanguage.split(',')
+      .map(langQ => {
+        const [language, qValue] = langQ.trim().split(';');
+        return language.substring(0, 2).toLowerCase(); // Get primary language tag
+      });
+
+    // Find the first requested language that's available
+    lang = requestedLanguages.find(l => availableLanguages[l]) || defaultLanguage;
+  }
+
+  // Load reasons for the selected language
+  const reasons = getReasons(lang);
+
+  // Pick a random reason
   const reason = reasons[Math.floor(Math.random() * reasons.length)];
+
   res.json({ reason });
 });
 
 // Start server
 app.listen(PORT, () => {
   console.log(`No-as-a-Service is running on port ${PORT}`);
-});
+});

reasons/de.json

@@ -0,0 +1,7 @@
+[
+  "Tut mir leid, aber ich muss leider ablehnen.",
+  "Das passt jetzt leider gar nicht in meinen Zeitplan.",
+  "Die Sterne stehen heute nicht günstig dafür.",
+  "Ich habe bereits zu viele Projekte am Laufen.",
+  "Mein innerer Schweinehund lässt grüßen und sagt nein."
+]

reasons/fr.json

@@ -0,0 +1,7 @@
+[
+  "Je dois respectueusement décliner.",
+  "C'est une idée intéressante, mais ce n'est pas pour moi.",
+  "Mon agenda est malheureusement déjà bien rempli.",
+  "Je dois écouter ma voix intérieure, et elle me dit non.",
+  "Je préfère réserver mon énergie pour d'autres projets."
+]