LG-10687 Break Up MFA Presenters

app/models/auth_app_configuration.rb

@@ -13,7 +13,7 @@ def mfa_enabled?
 
   def selection_presenters
     if mfa_enabled?
-      [TwoFactorAuthentication::AuthAppSelectionPresenter.new(user:, configuration: self)]
+      [TwoFactorAuthentication::SignInAuthAppSelectionPresenter.new(user:, configuration: self)]
     else
       []
     end

app/presenters/two_factor_authentication/set_up_auth_app_selection_presenter.rb

@@ -0,0 +1,19 @@
+module TwoFactorAuthentication
+  class SetUpAuthAppSelectionPresenter < SetUpSelectionPresenter
+    def method
+      :auth_app
+    end
+
+    def mfa_configuration_count
+      user.auth_app_configurations.count
+    end
+
+    def label
+      t('two_factor_authentication.two_factor_choice_options.auth_app')
+    end
+
+    def info
+      t('two_factor_authentication.two_factor_choice_options.auth_app_info')
+    end
+  end
+end

app/presenters/two_factor_authentication/set_up_selection_presenter.rb

@@ -0,0 +1,59 @@
+module TwoFactorAuthentication
+  class SetUpSelectionPresenter
+    include ActionView::Helpers::TranslationHelper
+
+    attr_reader :user
+
+    def initialize(user:)
+      @user = user
+    end
+
+    def render_in(view_context, &block)
+      view_context.capture(&block)
+    end
+
+    def type
+      method.to_s
+    end
+
+    def label
+      raise "Unsupported setup method: #{type}"
+    end
+
+    def info
+      raise "Unsupported setup method: #{type}"
+    end
+
+    def mfa_added_label
+      if single_configuration_only?
+        ''
+      else
+        "(#{mfa_configuration_description})"
+      end
+    end
+
+    def single_configuration_only?
+      false
+    end
+
+    def mfa_configuration_count
+      0
+    end
+
+    def mfa_configuration_description
+      return '' if mfa_configuration_count == 0
+      if single_configuration_only?
+        t('two_factor_authentication.two_factor_choice_options.no_count_configuration_added')
+      else
+        t(
+          'two_factor_authentication.two_factor_choice_options.configurations_added',
+          count: mfa_configuration_count,
+        )
+      end
+    end
+
+    def disabled?
+      single_configuration_only? && mfa_configuration_count > 0
+    end
+  end
+end

app/presenters/two_factor_authentication/sign_in_auth_app_selection_presenter.rb

@@ -0,0 +1,15 @@
+module TwoFactorAuthentication
+  class SignInAuthAppSelectionPresenter < SignInSelectionPresenter
+    def method
+      :auth_app
+    end
+
+    def label
+      t('two_factor_authentication.login_options.auth_app')
+    end
+
+    def info
+      t('two_factor_authentication.login_options.auth_app_info')
+    end
+  end
+end

app/presenters/two_factor_authentication/sign_in_selection_presenter.rb

@@ -0,0 +1,32 @@
+module TwoFactorAuthentication
+  class SignInSelectionPresenter
+    include ActionView::Helpers::TranslationHelper
+
+    attr_reader :configuration, :user
+
+    def initialize(user:, configuration:)
+      @user = user
+      @configuration = configuration
+    end
+
+    def render_in(view_context, &block)
+      view_context.capture(&block)
+    end
+
+    def type
+      method.to_s
+    end
+
+    def label
+      raise "Unsupported login method: #{type}"
+    end
+
+    def info
+      raise "Unsupported login method: #{type}"
+    end
+
+    def disabled?
+      false
+    end
+  end
+end

app/presenters/two_factor_options_presenter.rb

@@ -99,7 +99,7 @@ def phone_options
 
   def totp_option
     return [] if piv_cac_required? || phishing_resistant_only?
-    [TwoFactorAuthentication::AuthAppSelectionPresenter.new(user: user)]
+    [TwoFactorAuthentication::SetUpAuthAppSelectionPresenter.new(user: user)]
   end
 
   def backup_code_option

spec/presenters/two_factor_authentication/auth_app_selection_presenter_spec.rb → spec/presenters/two_factor_authentication/set_up_auth_app_selection_presenter_spec.rb

@@ -1,14 +1,14 @@
 require 'rails_helper'
 
-RSpec.describe TwoFactorAuthentication::AuthAppSelectionPresenter do
+RSpec.describe TwoFactorAuthentication::SetUpAuthAppSelectionPresenter do
   let(:configuration) {}
   let(:user_without_mfa) { create(:user) }
   let(:user_with_mfa) { create(:user, :with_authentication_app) }
   let(:presenter_without_mfa) do
-    described_class.new(configuration: configuration, user: user_without_mfa)
+    described_class.new(user: user_without_mfa)
   end
   let(:presenter_with_mfa) do
-    described_class.new(configuration: configuration, user: user_with_mfa)
+    described_class.new(user: user_with_mfa)
   end
 
   describe '#type' do
@@ -17,7 +17,7 @@
     end
   end
 
-  describe '#mfa_configruation' do
+  describe '#mfa_configuration' do
     it 'return an empty string when user has not configured this authenticator' do
       expect(presenter_without_mfa.mfa_configuration_description).to eq('')
     end

spec/presenters/two_factor_authentication/set_up_selection_presenter_spec.rb

@@ -0,0 +1,105 @@
+require 'rails_helper'
+
+RSpec.describe TwoFactorAuthentication::SetUpSelectionPresenter do
+  class PlaceholderPresenter < TwoFactorAuthentication::SetUpSelectionPresenter
+    def method
+      :missing
+    end
+  end
+
+  let(:user) { build(:user) }
+
+  subject(:presenter) { described_class.new(user: user) }
+
+  describe '#render_in' do
+    it 'renders captured block content' do
+      view_context = ActionController::Base.new.view_context
+
+      expect(view_context).to receive(:capture) do |*args, &block|
+        expect(block.call).to eq('content')
+      end
+
+      presenter.render_in(view_context) { 'content' }
+    end
+  end
+
+  describe '#disabled?' do
+    let(:single_configuration_only) {}
+    let(:mfa_configuration_count) {}
+
+    before do
+      allow(presenter).to receive(:single_configuration_only?).and_return(single_configuration_only)
+      allow(presenter).to receive(:mfa_configuration_count).and_return(mfa_configuration_count)
+    end
+
+    context 'without single configuration restriction' do
+      let(:single_configuration_only) { false }
+
+      it 'is an mfa that allows multiple configurations' do
+        expect(presenter.disabled?).to eq(false)
+      end
+    end
+
+    context 'with single configuration only' do
+      let(:single_configuration_only) { true }
+
+      context 'with default mfa count implementation' do
+        before do
+          allow(presenter).to receive(:mfa_configuration_count).and_call_original
+        end
+
+        it 'is mfa with unimplemented mfa count and single config' do
+          expect(presenter.disabled?).to eq(false)
+        end
+      end
+
+      context 'with no configured mfas' do
+        let(:mfa_configuration_count) { 0 }
+
+        it 'is configured with no mfa' do
+          expect(presenter.disabled?).to eq(false)
+        end
+      end
+
+      context 'with at least one configured mfa' do
+        let(:mfa_configuration_count) { 1 }
+
+        it 'is mfa with at least one configured' do
+          expect(presenter.disabled?).to eq(true)
+        end
+      end
+    end
+  end
+
+  describe '#mfa_added_label' do
+    subject(:mfa_added_label) { presenter.mfa_added_label }
+    before do
+      allow(presenter).to receive(:mfa_configuration_count).and_return('1')
+    end
+    it 'is a count of configured MFAs' do
+      expect(presenter.mfa_added_label).to include('added')
+    end
+
+    context 'with single configuration only' do
+      before do
+        allow(presenter).to receive(:single_configuration_only?).and_return(true)
+      end
+
+      it 'is an empty string' do
+        expect(presenter.mfa_added_label).to eq('')
+      end
+    end
+  end
+
+  describe '#label' do
+    it 'raises with missing translation' do
+      expect { PlaceholderPresenter.new(user: user).label }.to raise_error(RuntimeError)
+    end
+  end
+
+  describe '#info' do
+    it 'raises with missing translation' do
+      expect { PlaceholderPresenter.new(user: user).info }.to raise_error(RuntimeError)
+    end
+  end
+end

spec/presenters/two_factor_options_presenter_spec.rb

@@ -30,7 +30,7 @@
   describe '#options' do
     it 'supplies all the options for a user' do
       expect(presenter.options.map(&:class)).to eq [
-        TwoFactorAuthentication::AuthAppSelectionPresenter,
+        TwoFactorAuthentication::SetUpAuthAppSelectionPresenter,
         TwoFactorAuthentication::PhoneSelectionPresenter,
         TwoFactorAuthentication::BackupCodeSelectionPresenter,
         TwoFactorAuthentication::WebauthnSelectionPresenter,
@@ -61,7 +61,7 @@
 
       it 'supplies all the options except phone' do
         expect(presenter.options.map(&:class)).to eq [
-          TwoFactorAuthentication::AuthAppSelectionPresenter,
+          TwoFactorAuthentication::SetUpAuthAppSelectionPresenter,
           TwoFactorAuthentication::BackupCodeSelectionPresenter,
           TwoFactorAuthentication::WebauthnSelectionPresenter,
           TwoFactorAuthentication::PivCacSelectionPresenter,
@@ -77,7 +77,7 @@
       it 'supplies all the options except webauthn' do
         expect(presenter.options.map(&:class)).to eq [
           TwoFactorAuthentication::WebauthnPlatformSelectionPresenter,
-          TwoFactorAuthentication::AuthAppSelectionPresenter,
+          TwoFactorAuthentication::SetUpAuthAppSelectionPresenter,
           TwoFactorAuthentication::PhoneSelectionPresenter,
           TwoFactorAuthentication::BackupCodeSelectionPresenter,
           TwoFactorAuthentication::WebauthnSelectionPresenter,

spec/views/partials/multi_factor_authentication/_mfa_selection.html.erb_spec.rb

@@ -41,7 +41,7 @@
       render partial: 'mfa_selection', locals: {
         form: form_builder,
         option: presenter.options.find do |option|
-                  option.is_a?(TwoFactorAuthentication::AuthAppSelectionPresenter)
+                  option.is_a?(TwoFactorAuthentication::SetUpAuthAppSelectionPresenter)
                 end,
       }
     end