feat: integrate rate limiter into message handler

src/messageHandler.js

@@ -1,5 +1,6 @@
 const { findDienst, getPngFilePaths } = require('./dienstService')
 const { sendTextMessage, sendImageMessage, notifyAdmin } = require('./whatsappApi')
+const { checkLimit, increment, MAX_REQUESTS_PER_DAY } = require('./rateLimiter')
 
 const BOT_NAME = (process.env.BOT_NAME || 'EdGpt').toLowerCase()
 const ALLOWED_GROUP = process.env.ALLOWED_GROUP
@@ -40,6 +41,15 @@ async function handleWebhook(payload) {
   const author = message.author
   if (!author) return
 
+  const limit = checkLimit(author)
+  if (!limit.allowed) {
+    await sendTextMessage(author, `Je hebt vandaag het maximum van ${limit.max} diensten bereikt. Probeer het morgen opnieuw.`)
+    console.log(`Rate limit reached for ${author} (${limit.count}/${limit.max})`)
+    return
+  }
+
+  increment(author)
+
   const dienst = findDienst(dienstnummer)
   if (!dienst) {
     await sendTextMessage(author, `Dienstnummer ${dienstnummer} niet gevonden.`)