From 4caacaa26e916b87df64745b59305d2e69653163 Mon Sep 17 00:00:00 2001
From: Lee Delarm <135059743+lee-delarm6@users.noreply.github.com>
Date: Wed, 20 Nov 2024 17:28:59 -0500
Subject: [PATCH] 96000 part a eps service (#19451)

* Creating eps provider service

Creating eps provider service

* Added specs

Added specs and service provider update

* Eps service initial

Eps service initial

* Moved files

Moved files, set settings, removed code we won't be using

* Token service not in yet

Token service not in yet, skipping tests for this service

* Update to use BaseService

Update to use BaseService

* Fixed format, changed inherited type

Fixed format, changed inherited type

* Rubocop fixes

Rubocop fixes

* Settings autoformat update

Settings autoformat update

* changed init

changed init

* Fixing tests, adding methods

Fixed a bunch of tests, lots of mocks added, copied in connection method to Eps::Confg, minor change in base_service

* Minor change to init

Minor change to init, attempting to commit without rubocop error, we'll see

* Adding super back

Adding super back, I don't see the init method either, I don't know why it demands it

* Simplified code and specs

Simplified code and specs

* Adding config tests, minor config changes

Adding config tests, minor config changes

* minor change

Changed to call header directly

* Adding middleware

Adding middleware

* Removed vaos logging

Removed vaos logging
---
 config/settings.yml                           |  3 ++
 modules/vaos/app/services/eps/base_service.rb | 19 +++++++
 .../vaos/app/services/eps/configuration.rb    | 37 +++++++++++++
 .../spec/services/eps/base_service_spec.rb    | 27 ++++++++++
 .../spec/services/eps/configuration_spec.rb   | 53 +++++++++++++++++++
 5 files changed, 139 insertions(+)
 create mode 100644 modules/vaos/app/services/eps/base_service.rb
 create mode 100644 modules/vaos/app/services/eps/configuration.rb
 create mode 100644 modules/vaos/spec/services/eps/base_service_spec.rb
 create mode 100644 modules/vaos/spec/services/eps/configuration_spec.rb

diff --git a/config/settings.yml b/config/settings.yml
index 2706a07c878..72aec2753c5 100644
--- a/config/settings.yml
+++ b/config/settings.yml
@@ -1833,7 +1833,10 @@ vaos:
     mock: false
     client_id: "fake_client_id"
     kid: "fake_kid"
+    grant_type: "client_credentials"
+    client_assertion_type: "urn:ietf:params:oauth:client-assertion-type:jwt-bearer"
     audience_claim_url: "https://login.wellhive.com/oauth2/default/v1/token"
     access_token_url: "https://login.wellhive.com/oauth2/default/v1/token"
     api_url: "https://api.wellhive.com/care-navigation/v1"
     scopes: "care-nav"
+
diff --git a/modules/vaos/app/services/eps/base_service.rb b/modules/vaos/app/services/eps/base_service.rb
new file mode 100644
index 00000000000..0ac2c701c0b
--- /dev/null
+++ b/modules/vaos/app/services/eps/base_service.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Eps
+  class BaseService < VAOS::SessionService
+    STATSD_KEY_PREFIX = 'api.eps'
+
+    def headers
+      {
+        'Authorization' => 'Bearer 1234',
+        'Content-Type' => 'application/json',
+        'X-Request-ID' => RequestStore.store['request_id']
+      }
+    end
+
+    def config
+      Eps::Configuration.instance
+    end
+  end
+end
diff --git a/modules/vaos/app/services/eps/configuration.rb b/modules/vaos/app/services/eps/configuration.rb
new file mode 100644
index 00000000000..27c0954bcdd
--- /dev/null
+++ b/modules/vaos/app/services/eps/configuration.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module Eps
+  class Configuration < Common::Client::Configuration::REST
+    delegate :access_token_url, :api_url, :grant_type, :scopes, :client_assertion_type, to: :settings
+
+    def settings
+      Settings.vaos.eps
+    end
+
+    def service_name
+      'EPS'
+    end
+
+    def mock_enabled?
+      [true, 'true'].include?(settings.mock)
+    end
+
+    def connection
+      Faraday.new(api_url, headers: base_request_headers, request: request_options) do |conn|
+        conn.use :breakers
+        conn.request :camelcase
+        conn.request :json
+
+        if ENV['VAOS_DEBUG'] && !Rails.env.production?
+          conn.request(:curl, ::Logger.new($stdout), :warn)
+          conn.response(:logger, ::Logger.new($stdout), bodies: true)
+        end
+
+        conn.response :betamocks if mock_enabled?
+        conn.response :snakecase
+        conn.response :json, content_type: /\bjson$/
+        conn.adapter Faraday.default_adapter
+      end
+    end
+  end
+end
diff --git a/modules/vaos/spec/services/eps/base_service_spec.rb b/modules/vaos/spec/services/eps/base_service_spec.rb
new file mode 100644
index 00000000000..b12817b59d3
--- /dev/null
+++ b/modules/vaos/spec/services/eps/base_service_spec.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe Eps::BaseService do
+  let(:user) { double('User', account_uuid: '1234') }
+  let(:service) { described_class.new(user) }
+
+  describe '#headers' do
+    it 'returns the correct headers' do
+      allow(RequestStore.store).to receive(:[]).with('request_id').and_return('request-id')
+
+      expected_headers = {
+        'Authorization' => 'Bearer 1234',
+        'Content-Type' => 'application/json',
+        'X-Request-ID' => 'request-id'
+      }
+      expect(service.headers).to eq(expected_headers)
+    end
+  end
+
+  describe '#config' do
+    it 'returns the Eps::Configuration instance' do
+      expect(service.config).to be_instance_of(Eps::Configuration)
+    end
+  end
+end
diff --git a/modules/vaos/spec/services/eps/configuration_spec.rb b/modules/vaos/spec/services/eps/configuration_spec.rb
new file mode 100644
index 00000000000..fbfd6d068a6
--- /dev/null
+++ b/modules/vaos/spec/services/eps/configuration_spec.rb
@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe Eps::Configuration do
+  describe '#service_name' do
+    it 'has a service name' do
+      expect(Eps::Configuration.instance.service_name).to eq('EPS')
+    end
+  end
+
+  describe '#connection' do
+    it 'returns a connection' do
+      expect(Eps::Configuration.instance.connection).not_to be_nil
+    end
+
+    context 'when VAOS_DEBUG is set and not in production' do
+      it 'sets up the connection with a stdout logger to display requests in curl format' do
+        allow(ENV).to receive(:[]).and_call_original
+        allow(ENV).to receive(:[]).with('VAOS_DEBUG').and_return('true')
+        allow(Rails.env).to receive(:production?).and_return(false)
+
+        conn = Eps::Configuration.instance.connection
+        expect(conn.builder.handlers).to include(Faraday::Response::Logger)
+        expect(conn.builder.handlers).to include(Faraday::Curl::Middleware)
+      end
+    end
+  end
+
+  describe '#mock_enabled?' do
+    context 'when Settings.vaos.eps.mock is true' do
+      before { allow(Settings.vaos.eps).to receive(:mock).and_return(true) }
+
+      it 'returns true' do
+        expect(Eps::Configuration.instance).to be_mock_enabled
+      end
+    end
+
+    context 'when Settings.vaos.eps.mock is false' do
+      before { allow(Settings.vaos.eps).to receive(:mock).and_return(false) }
+
+      it 'returns false' do
+        expect(Eps::Configuration.instance).not_to be_mock_enabled
+      end
+    end
+  end
+
+  describe '#settings' do
+    it 'returns the settings' do
+      expect(Eps::Configuration.instance.settings).to eq(Settings.vaos.eps)
+    end
+  end
+end