fix: Resolve TypeError by correcting module dependency injection

This commit fixes a TypeError that occurred because the contactRoutes
module was being initialized before the contactController module.

The fix involves:
- Swapping the initialization order in server.js so the contactController is
  initialized before contactRoutes.
- Modifying contactRoutes.js to accept the initialized contactController
  as a dependency, rather than requiring it on its own.

routes/contactRoutes.js

@@ -1,19 +1,22 @@
-const express = require('express');
-const router = express.Router();
-const rateLimit = require('express-rate-limit');
-const { body, validationResult } = require('express-validator');
-const contactController = require('../controllers/contactController');
-const { formSecurityCheck } = require('../middleware/securityMw');
+// The entire module is now a function that accepts 'contactController' as an argument.
+module.exports = (contactController) => {
+    const express = require('express');
+    const router = express.Router();
+    const rateLimit = require('express-rate-limit');
+    const { body, validationResult } = require('express-validator');
+    // Remove the old require statement since we are getting the controller as an argument
+    // const contactController = require('../controllers/contactController');
+    const { formSecurityCheck } = require('../middleware/securityMw');
 
-// 🛡️ Configure rate limiting to prevent DDoS and spamming
-const apiLimiter = rateLimit({
+    // 🛡️ Configure rate limiting to prevent DDoS and spamming
+    const apiLimiter = rateLimit({
         windowMs: 15 * 60 * 1000, // 15 minutes
         max: 5,
         message: "Too many requests from this IP, please try again after 15 minutes."
-});
+    });
 
-// Define the route for form submissions
-router.post('/submit-form',
+    // Define the route for form submissions
+    router.post('/submit-form',
         apiLimiter,
         [
             // express-validator: sanitation and validation
@@ -37,6 +40,8 @@ router.post('/submit-form',
         formSecurityCheck,
         // The controller, which is the final step
         contactController.submitForm
-);
+    );
 
-module.exports = router;
+    // Return the configured router
+    return router;
+};

server.js

@@ -34,10 +34,11 @@ const transporter = nodemailer.createTransport({
     },
 });
 
-// Import contactRoutes and contactController
-const contactRoutes = require('./routes/contactRoutes');
 const contactController = require('./controllers/contactController')(pool, transporter);
 
+// Import contactRoutes and contactController
+const contactRoutes = require('./routes/contactRoutes')(contactController);
+
 // Use contactRoutes to connect the modular router to the main app
 app.use(contactRoutes);