Update admin interface to support tax_reverse_charge_mode

Includes updates to the admin interface to allow users to select the `tax_reverse_charge_mode` when creating
or editing tax categories. The permitted parameters in the `TaxCategoriesController` have been updated
to include `tax_reverse_charge_mode`.

The admin views and components have been updated to display the `tax_reverse_charge_mode` in the tax categories
index and form views. This ensures that users can easily manage and view the reverse charge mode for each tax category.

Author: JustShah

admin/app/components/solidus_admin/tax_categories/edit/component.html.erb

@@ -5,6 +5,13 @@
         <%= render component("ui/forms/field").text_field(f, :name) %>
         <%= render component("ui/forms/field").text_field(f, :tax_code) %>
         <%= render component("ui/forms/field").text_field(f, :description) %>
+        <% if Spree::Backend::Config.show_reverse_charge_fields %>
+          <%= render component("ui/forms/field").select(
+              f,
+              :tax_reverse_charge_mode,
+              Spree::TaxCategory.tax_reverse_charge_modes.keys.map { |key| [I18n.t("spree.tax_reverse_charge_modes.#{key}"), key] }
+            ) %>
+        <% end %>
         <label class="flex gap-2 items-center">
           <%= render component("ui/forms/checkbox").new(
               name: "#{f.object_name}[is_default]",

admin/app/components/solidus_admin/tax_categories/index/component.rb

@@ -46,7 +46,7 @@ def batch_actions
   end
 
   def columns
-    [
+    columns = [
       {
         header: :name,
         data: ->(tax_category) do
@@ -82,5 +82,18 @@ def columns
         },
       },
     ]
+
+    if Spree::Backend::Config.show_reverse_charge_fields
+      columns << {
+        header: :tax_reverse_charge_mode,
+        data: ->(tax_category) do
+          link_to_if tax_category.tax_reverse_charge_mode, I18n.t("spree.tax_reverse_charge_modes.#{tax_category.tax_reverse_charge_mode}"), edit_path(tax_category),
+            data: { turbo_frame: :resource_modal },
+            class: 'body-link'
+        end
+      }
+    end
+
+    columns
   end
 end

admin/app/components/solidus_admin/tax_categories/new/component.html.erb

@@ -5,6 +5,13 @@
         <%= render component("ui/forms/field").text_field(f, :name) %>
         <%= render component("ui/forms/field").text_field(f, :tax_code) %>
         <%= render component("ui/forms/field").text_field(f, :description) %>
+        <% if Spree::Backend::Config.show_reverse_charge_fields %>
+          <%= render component("ui/forms/field").select(
+              f,
+              :tax_reverse_charge_mode,
+              Spree::TaxCategory.tax_reverse_charge_modes.keys.map { |key| [I18n.t("spree.tax_reverse_charge_modes.#{key}"), key] }
+            ) %>
+        <% end %>
         <label class="flex gap-2 items-center">
           <%= render component("ui/forms/checkbox").new(
               name: "#{f.object_name}[is_default]",

admin/app/controllers/solidus_admin/tax_categories_controller.rb

@@ -7,7 +7,7 @@ class TaxCategoriesController < SolidusAdmin::ResourcesController
     def resource_class = Spree::TaxCategory
 
     def permitted_resource_params
-      params.require(:tax_category).permit(:name, :description, :is_default, :tax_code)
+      params.require(:tax_category).permit(:name, :description, :is_default, :tax_code, :tax_reverse_charge_mode)
     end
   end
 end

backend/app/views/spree/admin/tax_categories/_form.html.erb

@@ -29,4 +29,16 @@
       <%= f.text_area :description, class: 'fullwidth' %>
     <% end %>
   </div>
+
+  <% if Spree::Backend::Config.show_reverse_charge_fields %>
+    <div class="col-4">
+      <%= f.field_container :tax_reverse_charge_mode do %>
+        <%= f.label :tax_reverse_charge_mode %>
+        <%= f.select :tax_reverse_charge_mode,
+            Spree::TaxCategory.tax_reverse_charge_modes.keys.map { |key| [I18n.t("spree.tax_reverse_charge_modes.#{key}"), key] },
+            { include_blank: false },
+            { class: 'custom-select fullwidth' } %>
+      <% end %>
+    </div>
+  <% end %>
 </div>

backend/app/views/spree/admin/tax_categories/index.html.erb

@@ -19,14 +19,20 @@
   <colgroup>
     <col style="width: 20%">
     <col style="width: 10%">
+    <% if Spree::Backend::Config.show_reverse_charge_fields %>
+      <col style="width: 10%">
+    <% end %>
     <col style="width: 40%">
-    <col style="width: 15%">
-    <col style="width: 15%">
+    <col style="width: 10%">
+    <col style="width: 10%">
   </colgroup>
   <thead>
     <tr data-hook="tax_header">
       <th><%= Spree::TaxCategory.human_attribute_name(:name) %></th>
       <th><%= Spree::TaxCategory.human_attribute_name(:tax_code) %></th>
+      <% if Spree::Backend::Config.show_reverse_charge_fields %>
+        <th><%= Spree::TaxCategory.human_attribute_name(:tax_reverse_charge_mode) %></th>
+      <% end %>
       <th><%= Spree::TaxCategory.human_attribute_name(:description) %></th>
       <th><%= Spree::TaxCategory.human_attribute_name(:is_default) %></th>
       <th class="actions"></th>
@@ -41,6 +47,9 @@
       <tr id="<%= spree_dom_id tax_category %>" data-hook="tax_row">
         <td><%= tax_category.name %></td>
         <td><%= tax_category.tax_code %></td>
+        <% if Spree::Backend::Config.show_reverse_charge_fields %>
+          <td><%= I18n.t("spree.tax_reverse_charge_modes.#{tax_category.tax_reverse_charge_mode}") %></td>
+        <% end %>
         <td><%= tax_category.description %></td>
         <td><%= tax_category.is_default? ? t('spree.say_yes') : t('spree.say_no') %></td>
         <td class="actions">