enable codes only download in UI

- add link on lettings log index page
- pass codes_only flag through params in relevant links and methods
- convert flag to boolean in controller methods

app/controllers/lettings_logs_controller.rb

@@ -80,13 +80,15 @@ class LettingsLogsController < LogsController
 
   def download_csv
     unpaginated_filtered_logs = filtered_logs(current_user.lettings_logs, search_term, @session_filters)
+    is_codes_only_export = params.require(:codes_only) == "true"
 
-    render "download_csv", locals: { search_term:, count: unpaginated_filtered_logs.size, post_path: email_csv_lettings_logs_path }
+    render "download_csv", locals: { search_term:, count: unpaginated_filtered_logs.size, post_path: email_csv_lettings_logs_path, is_codes_only_export: }
   end
 
   def email_csv
     all_orgs = params["organisation_select"] == "all"
-    EmailCsvJob.perform_later(current_user, search_term, @session_filters, all_orgs)
+    is_codes_only_export = params.require(:is_codes_only_export) == "true"
+    EmailCsvJob.perform_later(current_user, search_term, @session_filters, all_orgs, nil, is_codes_only_export)
     redirect_to csv_confirmation_lettings_logs_path
   end
 

app/helpers/logs_helper.rb

@@ -33,10 +33,9 @@ module LogsHelper
     end
   end
 
-  def csv_download_url_for_controller(controller)
-    case log_type_for_controller(controller)
-    when "lettings"
-      csv_download_lettings_logs_path(search: params["search"])
+  def csv_download_url_for_controller(controller_type:, search:, codes_only:)
+    case log_type_for_controller(controller_type)
+    when "lettings" then csv_download_lettings_logs_path(search:, codes_only:)
     end
   end
 end

app/views/logs/_log_list.html.erb

@@ -1,7 +1,8 @@
 <h2 class="govuk-body">
   <%= render(SearchResultCaptionComponent.new(searched:, count: pagy.count, item_label:, total_count:, item: "logs", path: request.path)) %>
   <% if logs&.first&.lettings? %>
-    <%= govuk_link_to "Download (CSV)", csv_download_url, type: "text/csv" %>
+    <%= govuk_link_to "Download (CSV)", csv_download_url, type: "text/csv", class: "govuk-!-margin-right-4" %>
+    <%= govuk_link_to "Download (CSV, codes only)", csv_codes_only_download_url, type: "text/csv" %>
   <% end %>
 </h2>
 <% logs.map do |log| %>

app/views/logs/download_csv.html.erb

@@ -11,6 +11,6 @@
     <p class="govuk-body">We'll send a secure download link to your email address <strong><%= @current_user.email %></strong>.</p>
     <p class="govuk-body">You've selected <%= count %> logs.</p>
 
-    <%= govuk_button_to "Send email", post_path, method: :post, params: { search: search_term } %>
+    <%= govuk_button_to "Send email", post_path, method: :post, params: { search: search_term, is_codes_only_export: } %>
   </div>
 </div>

app/views/logs/index.html.erb

@@ -66,7 +66,17 @@
   <div class="app-filter-layout__content">
     <%= render SearchComponent.new(current_user:, search_label: search_label_for_controller(controller), value: @searched) %>
     <%= govuk_section_break(visible: true, size: "m") %>
-    <%= render partial: "log_list", locals: { logs: @logs, title: "Logs", pagy: @pagy, searched: @searched, item_label:, total_count: @total_count, csv_download_url: csv_download_url_for_controller(controller) } %>
+    <%= render partial: "log_list",
+               locals: {
+                 logs: @logs,
+                 title: "Logs",
+                 pagy: @pagy,
+                 searched: @searched,
+                 item_label:,
+                 total_count: @total_count,
+                 csv_download_url: csv_download_url_for_controller(controller_type: controller, search: @search_term, codes_only: false),
+                 csv_codes_only_download_url: csv_download_url_for_controller(controller_type: controller, search: @search_term, codes_only: true)
+               } %>
     <%== render partial: "pagy/nav", locals: { pagy: @pagy, item_name: "logs" } %>
   </div>
 </div>