From 0348d0b25ade96967822c217f5bddf9f3ff7caa7 Mon Sep 17 00:00:00 2001
From: gabrieljablonski <contact@gabrieljablonski.com>
Date: Tue, 1 Apr 2025 23:59:07 -0300
Subject: [PATCH] chore: add support for external frontend URL in environment
 configuration

---
 .env.example                              | 3 +++
 app/helpers/frontend_urls_helper.rb       | 3 ++-
 spec/helpers/frontend_urls_helper_spec.rb | 8 ++++++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/.env.example b/.env.example
index cd20ca72a..443baeb57 100644
--- a/.env.example
+++ b/.env.example
@@ -258,6 +258,9 @@ AZURE_APP_SECRET=
 # contact_inboxes with no conversation older than 90 days will be removed
 # REMOVE_STALE_CONTACT_INBOX_JOB_STATUS=false
 
+# NOTE: Useful when running inside docker-compose network to link to external domain
+FRONTEND_URL_EXTERNAL=
+
 # Baileys API Whatsapp provider
 BAILEYS_PROVIDER_DEFAULT_CLIENT_NAME=Chatwoot
 BAILEYS_PROVIDER_DEFAULT_URL=http://localhost:3025
diff --git a/app/helpers/frontend_urls_helper.rb b/app/helpers/frontend_urls_helper.rb
index 1867c77ea..281c8bcc3 100644
--- a/app/helpers/frontend_urls_helper.rb
+++ b/app/helpers/frontend_urls_helper.rb
@@ -1,6 +1,7 @@
 module FrontendUrlsHelper
   def frontend_url(path, **query_params)
     url_params = query_params.blank? ? '' : "?#{query_params.to_query}"
-    "#{root_url}app/#{path}#{url_params}"
+    host = ENV.fetch('FRONTEND_URL_EXTERNAL', root_url)
+    "#{host}app/#{path}#{url_params}"
   end
 end
diff --git a/spec/helpers/frontend_urls_helper_spec.rb b/spec/helpers/frontend_urls_helper_spec.rb
index c522d0ee9..beefd23e6 100644
--- a/spec/helpers/frontend_urls_helper_spec.rb
+++ b/spec/helpers/frontend_urls_helper_spec.rb
@@ -13,5 +13,13 @@ describe FrontendUrlsHelper do
         expect(helper.frontend_url('dashboard', p1: 'p1', p2: 'p2')).to eq 'http://test.host/app/dashboard?p1=p1&p2=p2'
       end
     end
+
+    context 'with set FRONTEND_URL_EXTERNAL' do
+      it 'creates path correctly' do
+        with_modified_env 'FRONTEND_URL_EXTERNAL' => 'http://external.url/' do
+          expect(helper.frontend_url('dashboard')).to eq 'http://external.url/app/dashboard'
+        end
+      end
+    end
   end
 end