Move domain filtering code from JS to controller

Author: gjacob24

app/controllers/api/orgs_by_domain_controller.rb

@@ -5,7 +5,8 @@ module Api
   class OrgsByDomainController < ApplicationController
     # GET /api/get-orgs-by-domain?domain=berkeley.edu
     def index
-      domain_param = search_params[:domain]
+      email_param = search_params[:email]
+      email_domain = email_param.split('@').last if email_param.present? && email_param.include?('@')
 
       dummy_orgs = [
         {
@@ -26,8 +27,8 @@ def index
       ]
 
       # Filter orgs by domain if domain parameter is provided
-      if domain_param.present?
-        filtered_orgs = dummy_orgs.select { |org| org[:domain] == domain_param }
+      if email_param.present?
+        filtered_orgs = dummy_orgs.select { |org| org[:domain] == email_domain }
 
         # If no matches found, return the "OTHER" org
         if filtered_orgs.empty?
@@ -52,7 +53,7 @@ def index
 
     # Using Strong Parameters ensure only domain is permitted
     def search_params
-      params.permit(:domain, :format)
+      params.permit(:email, :format)
     end
   end
 end

app/javascript/src/shared/createAccountForm.js

@@ -12,39 +12,36 @@ $(() => {
     return;
   }
 
-  let currentDomain = '';
+  let currentEmail = '';
   let debounceTimer = null;
 
   // Handle email input changes
   emailField.addEventListener('input', function() {
     const email = this.value;
 
     if (email && email.includes('@')) {
-      const domain = email.split('@')[1];
-
-      // Only fetch if domain has changed
-      if (domain && domain !== currentDomain) {
-        currentDomain = domain;
-
+      if (email !== currentEmail) {
+        currentEmail = email;
+        
         // Clear previous timer
         if (debounceTimer) {
           clearTimeout(debounceTimer);
         }
 
         // Debounce API calls to avoid too many requests
         debounceTimer = setTimeout(() => {
-          fetchOrganizations(domain);
+          fetchOrganizations(email);
         }, 500);
       }
     } else {
       // Clear organizations if email is invalid
-      currentDomain = '';
+      currentEmail = '';
       resetOrgSelect();
     }
   });
 
-  function fetchOrganizations(domain) {
-    fetch(`/api/get-orgs-by-domain?domain=${encodeURIComponent(domain)}`)
+  function fetchOrganizations(email) {
+    fetch(`/api/get-orgs-by-domain?email=${encodeURIComponent(email)}`)
       .then(response => response.json())
       .then(data => {
         populateOrgSelect(data);