Only add file list to overflow text if there are less than 41 files

Tweaks the file list logic to only display a list of files if there are less than 41, otherwise just lists how many files there are. This is to avoid adding too many pages to the overflow.

40 is an educated guess of how many files we would want to list at most, we will be following up to come up with a better figure based on historical data

lib/evss/disability_compensation_form/data_translation_all_claim.rb

@@ -32,6 +32,11 @@ class DataTranslationAllClaim # rubocop:disable Metrics/ClassLength
                                'PMR contractor for processing in accordance with M21-1 III.iii.1.D.2.'
       FORM0781_OVERFLOW_TEXT = "VA Form 0781/a has been completed by the applicant and sent to the VBMS eFolder\n"
 
+      # If the veteran submitted supplemental attachments for this claim,
+      # we list them in the form overflowText for the claim adjudicator to cross reference with the eFolder
+      # However, if the file list is long enough we don't want to take up too much space in the overflow text
+      MAX_VETERAN_UPLOADED_FILE_LIST_ATTACHMENTS = 40
+
       # EVSS validates this date using CST, at some point this may change to EST.
       EVSS_TZ = 'Central Time (US & Canada)'
 
@@ -99,19 +104,29 @@ def overflow_text
       end
 
       def attached_files_list
-        file_guids = input_form['attachments']&.pluck('confirmationCode')
-
-        if file_guids&.length
-          attachments = SupportingEvidenceAttachment.where(guid: file_guids)
-          list = "The veteran uploaded #{attachments.count} documents along with this claim. " \
-                 "Please verify in VBMS eFolder:\n"
-          filenames = attachments.map(&:original_filename).sort
-          filenames.each { |filename| list += "#{filename}\n" }
-
-          return list
+        list = ''
+        attachments = input_form['attachments']
+
+        if attachments&.length
+          if attachments.length <= MAX_VETERAN_UPLOADED_FILE_LIST_ATTACHMENTS
+            list += "The veteran uploaded #{attachments.length} documents along with this claim. " \
+                    "Please verify in VBMS eFolder:\n"
+
+            file_guids = attachments&.pluck('confirmationCode')
+            attachment_files = SupportingEvidenceAttachment.where(guid: file_guids)
+            filenames = attachment_files.map(&:original_filename).sort
+
+            filenames.each { |filename| list += "#{filename}\n" }
+          else
+            # If the file list is too long, we only include the message
+            # This is to avoid overfilling the overflowText field
+            # We also don't end the instruction with a colon because we aren't listing filenames after it
+            list += "The veteran uploaded #{attachments.length} documents along with this claim. " \
+                    "Please verify in VBMS eFolder\n"
+          end
         end
 
-        ''
+        list
       end
 
       ###

spec/lib/evss/disability_compensation_form/data_translation_all_claim_spec.rb

@@ -185,12 +185,35 @@
             Flipper.enable(:form526_include_document_upload_list_in_overflow_text)
           end
 
-          it 'includes a list of documents in the overflow text ordered alphabetically' do
-            expected_file_list = 'The veteran uploaded 2 documents along with this claim. ' \
-                                 "Please verify in VBMS eFolder:\n" \
-                                 "my_file_1.pdf\n" \
-                                 "my_file_2.pdf\n"
-            expect(subject.send(:overflow_text)).to eq(expected_file_list)
+          context 'when there is less than 40 files present' do
+            it 'includes a list of documents in the overflow text ordered alphabetically' do
+              expected_file_list = 'The veteran uploaded 2 documents along with this claim. ' \
+                                   "Please verify in VBMS eFolder:\n" \
+                                   "my_file_1.pdf\n" \
+                                   "my_file_2.pdf\n"
+              expect(subject.send(:overflow_text)).to eq(expected_file_list)
+            end
+          end
+
+          context 'when there are more than 40 files present' do
+            it 'includes the document count but does not list the file names' do
+              attachments = []
+
+              41.times do
+                attachments << { 'confirmationCode' => SecureRandom.uuid }
+              end
+
+              form_content = {
+                'form526' => {
+                  'attachments' => attachments
+                }
+              }
+
+              subject = described_class.new(user, form_content, false)
+              expect(subject.send(:overflow_text)).to eq(
+                "The veteran uploaded 41 documents along with this claim. Please verify in VBMS eFolder\n"
+              )
+            end
           end
         end