fix take a reservation + subscription

FIXME:
ActionView::Template::Error (undefined method `iso8601' for nil:NilClass)
Callstack:
  app/views/api/reservations/show.json.jbuilder:40:in `_app_views_api_reservations_show_json_jbuilder'
  app/controllers/api/payments_controller.rb:91:in `confirm_payment_schedule'

app/controllers/api/payments_controller.rb

@@ -187,6 +187,11 @@ class API::PaymentsController < API::ApiController
       slots = cart_items_params[:slots_attributes] || []
       nb_places = cart_items_params[:nb_reserve_places]
       tickets = cart_items_params[:tickets_attributes]
+      user_id = if current_user.admin? || current_user.manager?
+                  params[:cart_items][:reservation][:user_id]
+                else
+                  current_user.id
+                end
     else
       raise NotImplementedError unless params[:cart_items][:subscription]
 
@@ -195,10 +200,15 @@ class API::PaymentsController < API::ApiController
       slots = []
       nb_places = nil
       tickets = nil
+      user_id = if current_user.admin? || current_user.manager?
+                  params[:cart_items][:subscription][:user_id]
+                else
+                  current_user.id
+                end
     end
 
     price_details = Price.compute(false,
-                                  current_user,
+                                  User.find(user_id),
                                   reservable,
                                   slots,
                                   plan_id: plan_id,

app/frontend/src/javascript/api/api-client.ts

@@ -24,7 +24,11 @@ function extractHumanReadableMessage(error: any): string {
       // parse ruby error pages
       const parser = new DOMParser();
       const htmlDoc = parser.parseFromString(error, 'text/html');
-      return htmlDoc.querySelector('h2').textContent;
+      if (htmlDoc.querySelectorAll('h2').length > 2) {
+        return htmlDoc.querySelector('h2').textContent;
+      } else {
+        return htmlDoc.querySelector('h1').textContent;
+      }
     }
     return error;
   }

app/models/payment_schedule.rb

@@ -55,9 +55,9 @@ class PaymentSchedule < PaymentDocument
     return unless Setting.get('invoicing_module')
 
     unless Rails.env.test?
-      puts "Creating an InvoiceWorker job to generate the following invoice: id(#{id}), invoiced_id(#{invoiced_id}), " \
-           "invoiced_type(#{invoiced_type}), user_id(#{invoicing_profile.user_id})"
+      puts "Creating an PaymentScheduleWorker job to generate the following payment schedule: id(#{id}), scheduled_id(#{scheduled_id}), " \
+           "scheduled_type(#{scheduled_type}), user_id(#{invoicing_profile.user_id})"
     end
-    InvoiceWorker.perform_async(id, user&.subscription&.expired_at)
+    PaymentScheduleWorker.perform_async(id)
   end
 end

app/services/payment_schedule_service.rb

@@ -64,7 +64,7 @@ class PaymentScheduleService
       item.save!
     end
 
-    StripeService.create_stripe_subscription(ps.id, reservation&.reservable&.stp_product_id, setup_intent_id) if payment_method == 'stripe'
+    StripeService.create_stripe_subscription(ps.id, subscription, reservation&.reservable&.stp_product_id, setup_intent_id) if payment_method == 'stripe'
     ps
   end
 end

app/services/stripe_service.rb

@@ -5,7 +5,7 @@ class StripeService
   class << self
 
     # Create the provided PaymentSchedule on Stripe, using the Subscription API
-    def create_stripe_subscription(payment_schedule_id, reservable_stp_id, setup_intent_id)
+    def create_stripe_subscription(payment_schedule_id, subscription, reservable_stp_id, setup_intent_id)
       stripe_key = Setting.get('stripe_secret_key')
       payment_schedule = PaymentSchedule.find(payment_schedule_id)
       first_item = payment_schedule.ordered_items.first
@@ -14,14 +14,14 @@ class StripeService
       intent = Stripe::SetupIntent.retrieve(setup_intent_id, api_key: stripe_key)
       # subscription (recurring price)
       price = create_price(first_item.details['recurring'],
-                           payment_schedule.scheduled.plan.stp_product_id,
+                           subscription.plan.stp_product_id,
                            nil, monthly: true)
       # other items (not recurring)
-      items = subscription_invoice_items(payment_schedule, first_item, reservable_stp_id)
+      items = subscription_invoice_items(payment_schedule, subscription, first_item, reservable_stp_id)
 
       stp_subscription = Stripe::Subscription.create({
                                                        customer: payment_schedule.invoicing_profile.user.stp_customer_id,
-                                                       cancel_at: payment_schedule.scheduled.expiration_date.to_i,
+                                                       cancel_at: subscription.expiration_date.to_i,
                                                        promotion_code: payment_schedule.coupon&.code,
                                                        add_invoice_items: items,
                                                        items: [
@@ -34,7 +34,7 @@ class StripeService
 
     private
 
-    def subscription_invoice_items(payment_schedule, first_item, reservable_stp_id)
+    def subscription_invoice_items(payment_schedule, subscription, first_item, reservable_stp_id)
       second_item = payment_schedule.ordered_items[1]
 
       items = []
@@ -43,7 +43,7 @@ class StripeService
           # adjustment: when dividing the price of the plan / months, sometimes it forces us to round the amount per month.
           # The difference is invoiced here
           p1 = create_price(first_item.details['adjustment'],
-                            payment_schedule.scheduled.plan.stp_product_id,
+                            subscription.plan.stp_product_id,
                             "Price adjustment for payment schedule #{payment_schedule.id}")
           items.push(price: p1[:id])
         end

app/workers/stripe_worker.rb

@@ -64,6 +64,7 @@ class StripeWorker
         }, { api_key: Setting.get('stripe_secret_key') }
       )
       object.update_attributes(stp_product_id: product.id)
+      puts "Stripe product was created for the #{class_name} \##{id}"
     end
   end
 end