Fix EP400 Merge eligibility logic to be compatible with LH Benefits C…

…laims API

app/models/concerns/form526_claim_fast_tracking_concern.rb

@@ -26,6 +26,15 @@ module Form526ClaimFastTrackingConcern
   CLAIM_REVIEW_BASE_CODES = %w[030 040].freeze
   CLAIM_REVIEW_TYPES = %w[higherLevelReview supplementalClaim].freeze
 
+  def claim_age_in_days(pending_ep)
+    date = if pending_ep.respond_to?(:claim_date)
+             Date.strptime(pending_ep.claim_date, '%Y-%m-%d')
+           else
+             Date.strptime(pending_ep['date'], '%m/%d/%Y')
+           end
+    (Time.zone.today - date).round
+  end
+
   def send_rrd_alert_email(subject, message, error = nil, to = Settings.rrd.alerts.recipients)
     RrdAlertMailer.build(self, subject, message, error, to).deliver_now
   end
@@ -132,19 +141,19 @@ def prepare_for_ep_merge!
     Rails.logger.info('EP Merge total open EPs', id:, count: pending_eps.count)
     return unless pending_eps.count == 1
 
-    date = Date.strptime(pending_eps.first['date'], '%m/%d/%Y')
-    days_ago = (Time.zone.today - date).round
     feature_enabled = Flipper.enabled?(:disability_526_ep_merge_api, User.find(user_uuid))
     open_claim_review = open_claim_review?
     Rails.logger.info(
       'EP Merge open EP eligibility',
       { id:, feature_enabled:, open_claim_review:,
-        pending_ep_age: days_ago, pending_ep_status: pending_eps.first['status'] }
+        pending_ep_age: claim_age_in_days(pending_eps.first), pending_ep_status: pending_eps.first['status'] }
     )
     if feature_enabled && !open_claim_review
       save_metadata(ep_merge_pending_claim_id: pending_eps.first['id'])
       add_ep_merge_special_issue!
     end
+  rescue => e
+    Rails.logger.error("EP400 Merge eligibility failed #{e.message}.", backtrace: e.backtrace)
   end
 
   def get_claim_type

lib/disability_compensation/providers/claims_service/lighthouse_claims_service_provider.rb

@@ -24,6 +24,7 @@ def transform(data)
       DisabilityCompensation::ApiProvider::Claim.new(
         id: open_claim['id'],
         base_end_product_code: open_claim['attributes']['baseEndProductCode'],
+        claim_date: open_claim['attributes']['claimDate'],
         claim_phase_dates: open_claim['attributes']['claimPhaseDates'],
         development_letter_sent: open_claim['attributes']['developmentLetterSent'],
         status: open_claim['attributes']['status'] # make sure words/strings syntax is perfect match

lib/disability_compensation/responses/claims_service_response.rb

@@ -18,6 +18,7 @@ class Claim
       attribute :base_end_product_code, String
       attribute :development_letter_sent, Boolean
       attribute :status, String
+      attribute :claim_date, String
       attribute :claim_phase_dates, ClaimPhaseDates
     end
 

spec/sidekiq/evss/disability_compensation_form/submit_form526_all_claim_spec.rb

@@ -27,8 +27,10 @@
 
     let(:saved_claim) { FactoryBot.create(:va526ez) }
     let(:submitted_claim_id) { 600_130_094 }
+    let(:user_account) { create(:user_account, icn: '123498767V234859') }
     let(:submission) do
       create(:form526_submission,
+             user_account_id: user_account.id,
              user_uuid: user.uuid,
              auth_headers_json: auth_headers.to_json,
              saved_claim_id: saved_claim.id)
@@ -158,6 +160,30 @@ def expect_retryable_error(error_class)
             )
           end
 
+          context 'when using LH Benefits Claims API instead of EVSS' do
+            before do
+              Flipper.enable(:disability_compensation_lighthouse_claims_service_provider)
+              allow_any_instance_of(BenefitsClaims::Configuration).to receive(:access_token).and_return('access_token')
+            end
+
+            after { Flipper.disable(:disability_compensation_lighthouse_claims_service_provider) }
+
+            let(:open_claims_cassette) { 'lighthouse/benefits_claims/index/claims_with_single_open_disability_claim' }
+
+            it 'logs the expected data for EP 400 merge eligibility' do
+              subject.perform_async(submission.id)
+              VCR.use_cassette('virtual_regional_office/contention_classification') do
+                described_class.drain
+              end
+              expect(Rails.logger).to have_received(:info).with('EP Merge total open EPs', id: submission.id, count: 1)
+              expect(Rails.logger).to have_received(:info).with(
+                'EP Merge open EP eligibility',
+                { id: submission.id, feature_enabled: true, open_claim_review: false,
+                  pending_ep_age: 365, pending_ep_status: 'INITIAL_REVIEW' }
+              )
+            end
+          end
+
           context 'when EP400 merge API call is enabled' do
             before do
               Flipper.enable(:disability_526_ep_merge_api, user)