feat: allow adding custom attributes to conversations from the SDK (#6782)

* feat: add conversation attributes method to sdk and widget app

* feat: add endpoints to update custom attributes

* refactor: update SDK api

* feat: add api and actions for conversation updates

* fix: error message

* test: custom attributes on conversations controller

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

spec/controllers/api/v1/widget/conversations_controller_spec.rb

@@ -255,4 +255,59 @@ RSpec.describe '/api/v1/widget/conversations/toggle_typing', type: :request do
       end
     end
   end
+
+  describe 'POST /api/v1/widget/conversations/set_custom_attributes' do
+    let(:params) { { website_token: web_widget.website_token, custom_attributes: { 'product_name': 'Chatwoot' } } }
+
+    context 'with invalid website token' do
+      it 'returns unauthorized' do
+        post '/api/v1/widget/conversations/set_custom_attributes', params: { website_token: '' }
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+
+    context 'with correct website token' do
+      it 'sets the values when provided' do
+        post '/api/v1/widget/conversations/set_custom_attributes',
+             headers: { 'X-Auth-Token' => token },
+             params: params,
+             as: :json
+
+        expect(response).to have_http_status(:success)
+        conversation.reload
+        # conversation custom attributes should have "product_name" key with value "Chatwoot"
+        expect(conversation.custom_attributes).to include('product_name' => 'Chatwoot')
+      end
+    end
+  end
+
+  describe 'POST /api/v1/widget/conversations/destroy_custom_attributes' do
+    let(:params) { { website_token: web_widget.website_token, custom_attribute: ['product_name'] } }
+
+    context 'with invalid website token' do
+      it 'returns unauthorized' do
+        post '/api/v1/widget/conversations/destroy_custom_attributes', params: { website_token: '' }
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+
+    context 'with correct website token' do
+      it 'sets the values when provided' do
+        # ensure conversation has the attribute
+        conversation.custom_attributes = { 'product_name': 'Chatwoot' }
+        conversation.save!
+        expect(conversation.custom_attributes).to include('product_name' => 'Chatwoot')
+
+        post '/api/v1/widget/conversations/destroy_custom_attributes',
+             headers: { 'X-Auth-Token' => token },
+             params: params,
+             as: :json
+
+        expect(response).to have_http_status(:success)
+        conversation.reload
+        # conversation custom attributes should not have "product_name" key with value "Chatwoot"
+        expect(conversation.custom_attributes).not_to include('product_name' => 'Chatwoot')
+      end
+    end
+  end
 end