fix pacc

app/models/usps/indicium.rb

@@ -42,6 +42,7 @@ class USPS::Indicium < ApplicationRecord
 
   belongs_to :payment_account, foreign_key: :usps_payment_account_id
   belongs_to :letter, optional: true
+  belongs_to :hcb_payment_account, class_name: "HCB::PaymentAccount", optional: true
 
   def buy!(payment_token = nil)
     raise ArgumentError, "for what?" unless letter

app/views/letters/_buy_indicia_form.html.erb

@@ -0,0 +1,29 @@
+<div class="flex flex-col gap-2">
+  <%= form_with(url: buy_indicia_letter_path(letter), method: :post) do |form| %>
+    <div class="form-group">
+      <label>USPS Payment Account</label>
+      <%= form.collection_select :usps_payment_account_id, 
+        USPS::PaymentAccount.all, 
+        :id, 
+        :name, 
+        { prompt: "Select a payment account", selected: USPS::PaymentAccount.first&.id },
+        { required: true } %>
+    </div>
+    <% if current_user.hcb_payment_accounts.any? %>
+      <div class="form-group">
+        <label>Pay with HCB Organization</label>
+        <%= form.collection_select :hcb_payment_account_id,
+          current_user.hcb_payment_accounts,
+          :id,
+          :organization_name,
+          { prompt: "Select an organization" },
+          { required: true } %>
+      </div>
+    <% else %>
+      <p class="text-sm text-gray-600">
+        <%= link_to "Connect your HCB account", new_back_office_hcb_oauth_connection_path %> to purchase indicia.
+      </p>
+    <% end %>
+    <%= form.submit "Buy Indicia", class: "primary", disabled: current_user.hcb_payment_accounts.empty? %>
+  <% end %>
+</div>

app/views/letters/show.html.erb

@@ -92,19 +92,7 @@
                       Indicia (Metered) - Not Purchased Yet
                     </p>
                     <% if @letter.batch_id.nil? %>
-                      <div class="flex items-center gap-4">
-                        <%= form_with(url: buy_indicia_letter_path(@letter), method: :post) do |form| %>
-                          <div class="form-group">
-                            <%= form.collection_select :usps_payment_account_id, 
-                              USPS::PaymentAccount.all, 
-                              :id, 
-                              :name, 
-                              { prompt: "Select a payment account", selected: USPS::PaymentAccount.first&.id },
-                              { required: true } %>
-                          </div>
-                          <%= form.submit "Buy Indicia", class: "primary" %>
-                        <% end %>
-                      </div>
+                      <%= render 'buy_indicia_form', letter: @letter %>
                     <% end %>
                   <% end %>
                 <% elsif @letter.postage_type == "international_origin" %>