Add ability to change applicant name

This adds the ability for an assessor with the right permissions to
change the applicant name associated with an application.

app/controllers/assessor_interface/application_forms_controller.rb

@@ -32,6 +32,27 @@ def status
       @view_object = show_view_object
     end
 
+    def edit
+      authorize [:assessor_interface, application_form]
+
+      @form = ApplicationFormNameForm.new
+    end
+
+    def update
+      authorize [:assessor_interface, application_form]
+
+      @form =
+        ApplicationFormNameForm.new(
+          form_params.merge(application_form:, user: current_staff),
+        )
+
+      if @form.save
+        redirect_to [:assessor_interface, application_form]
+      else
+        render :edit, status: :unprocessable_entity
+      end
+    end
+
     def withdraw
       authorize [:assessor_interface, application_form]
     end
@@ -65,5 +86,12 @@ def show_view_object
     def application_form
       @application_form ||= show_view_object.application_form
     end
+
+    def form_params
+      params.require(:assessor_interface_application_form_name_form).permit(
+        :given_names,
+        :family_name,
+      )
+    end
   end
 end

app/views/assessor_interface/application_forms/edit.html.erb

@@ -0,0 +1,34 @@
+<% title = "Change details for ‘#{application_form_full_name(@application_form)}’" %>
+
+<% content_for :page_title, "#{"Error: " if @form.errors.any?}#{title}" %>
+<% content_for :back_link_url, assessor_interface_application_form_path(@application_form) %>
+
+<%= form_with model: @form, url: [:assessor_interface, @application_form], method: :put do |f| %>
+  <%= f.govuk_error_summary %>
+
+  <h1 class="govuk-heading-xl"><%= title %></h1>
+
+  <h2 class="govuk-heading-m">Current name</h2>
+
+  <%= govuk_summary_list(actions: false) do |summary_list|
+    summary_list.with_row do |row|
+      row.with_key { "Given names" }
+      row.with_value { @application_form.given_names }
+    end
+
+    summary_list.with_row do |row|
+      row.with_key { "Family name" }
+      row.with_value { @application_form.family_name }
+    end
+  end %>
+
+  <h2 class="govuk-heading-m">Change name</h2>
+  <p class="govuk-body">Use this form to change one or more of the names.</p>
+
+  <%= f.govuk_text_field :given_names %>
+  <%= f.govuk_text_field :family_name %>
+
+  <%= f.govuk_submit do %>
+    <%= govuk_link_to "Cancel", [:assessor_interface, @application_form] %>
+  <% end %>
+<% end %>

config/routes.rb

@@ -14,9 +14,7 @@
   namespace :assessor_interface, path: "/assessor" do
     root to: redirect("/assessor/applications")
 
-    resources :application_forms,
-              path: "/applications",
-              only: %i[index show destroy] do
+    resources :application_forms, path: "/applications", except: :new do
       collection do
         post "filters/apply", to: "application_forms#apply_filters"
         get "filters/clear", to: "application_forms#clear_filters"

spec/support/autoload/page_objects/assessor_interface/edit_application.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+module PageObjects
+  module AssessorInterface
+    class EditApplication < SitePrism::Page
+      set_url "/assessor/applications/{application_form_id}/edit"
+
+      section :form, "form" do
+        element :given_names_field,
+                "#assessor-interface-application-form-name-form-given-names-field"
+        element :family_name_field,
+                "#assessor-interface-application-form-name-form-family-name-field"
+        element :submit_button, ".govuk-button"
+      end
+    end
+  end
+end

spec/support/page_helpers.rb

@@ -27,6 +27,11 @@ def assessor_assessment_section_page
       PageObjects::AssessorInterface::AssessmentSection.new
   end
 
+  def assessor_edit_application_page
+    @assessor_edit_application_page ||=
+      PageObjects::AssessorInterface::EditApplication.new
+  end
+
   def assessor_edit_professional_standing_request_location_page
     @assessor_edit_professional_standing_request_location_page ||=
       PageObjects::AssessorInterface::EditProfessionalStandingRequestLocation.new

spec/system/assessor_interface/change_application_form_name_spec.rb

@@ -0,0 +1,72 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe "Assessor change application form name", type: :system do
+  before do
+    given_the_service_is_open
+    given_there_is_an_application_form
+  end
+
+  it "checks manage applications permission" do
+    given_i_am_authorized_as_a_user(assessor)
+
+    when_i_visit_the(:assessor_edit_application_page, application_form_id:)
+    then_i_see_the_forbidden_page
+  end
+
+  it "allows changing application form name" do
+    given_i_am_authorized_as_a_user(manager)
+
+    when_i_visit_the(:assessor_application_page, application_id:)
+    then_i_see_the(:assessor_application_page)
+
+    when_i_click_on_change_name
+    then_i_see_the(:assessor_edit_application_page, application_form_id:)
+
+    when_i_fill_in_the_name
+    then_i_see_the(:assessor_application_page, application_id:)
+  end
+
+  def given_there_is_an_application_form
+    application_form
+  end
+
+  def when_i_click_on_change_name
+    assessor_application_page
+      .summary_list
+      .find_row(key: "Name")
+      .actions
+      .link
+      .click
+  end
+
+  def when_i_fill_in_the_name
+    assessor_edit_application_page.form.given_names_field.fill_in with:
+      "New given names"
+    assessor_edit_application_page.form.family_name_field.fill_in with:
+      "New family name"
+    assessor_edit_application_page.form.submit_button.click
+  end
+
+  def application_form
+    @application_form ||=
+      create(
+        :application_form,
+        :submitted,
+        :with_personal_information,
+        :with_assessment,
+      )
+  end
+
+  delegate :id, to: :application_form, prefix: true
+  alias_method :application_id, :application_form_id
+
+  def assessor
+    create(:staff, :confirmed, :with_award_decline_permission)
+  end
+
+  def manager
+    create(:staff, :confirmed, :with_manage_applications_permission)
+  end
+end