* Downgrade invitees to Complete bundle rather than Basic with

  renewal date set to the original Family pack owner renewal date.

* Remove price parameter from create_user_subscription as it is RO.

* Set billing_period when creating the subscription in
  create_user_subscription
Signed-off-by: Birin Sanchez <birin.sanchez@puri.sm>

limitmonitor/task_resources/subscription.py

@@ -168,20 +168,26 @@ def process_bundle_changes():
         if is_paid and is_active:
             set_subscription_status(pending_change.old_subscription_id,
                                     'cancelled')
+            # save old subs renewal date for later
+            old_ren_date = pending_change.user.limit_set.first().renewal_date
             forced_update(pending_change.user)
 
             # if this is a Family pack downgrade deal with the
             # invitees
             if pending_change.is_family_downgrade():
-                downgrade_invitees(pending_change.user)
+                downgrade_invitees(pending_change.user, old_ren_date)
 
             pending_change.is_pending = False
             pending_change.save()
 
 
-def downgrade_invitees(user):
+def downgrade_invitees(user, renewal_date=None):
 
     invs = user.get_invitees()
+    if renewal_date is None:
+        ren_date = timezone.now() + timezone.timedelta(days=30)
+    else:
+        ren_date = renewal_date
     for inv in invs:
         # Create Basic monthly subscription if the invitee has a
         # recovery email
@@ -198,8 +204,10 @@ def downgrade_invitees(user):
                     # cancell invitee old subs
                     set_subscription_status(p_sub['external_key'], 'cancelled')
                     # create new Basic subs
-                    order_info = create_user_subscription(inv, price=0,
-                                                          paid=True)
+                    order_info = create_user_subscription(
+                        inv, bundle_type='COMPLETE', paid=True,
+                        next_payment_date=ren_date
+                    )
                     if order_info.get('id', None) is not None:
                         forced_update(inv)
                         # remove the invitation
@@ -217,17 +225,15 @@ def downgrade_invitees(user):
 
 
 def create_user_subscription(user, bundle_type='BASIC',
-                             billing_period='monthly',
-                             price=None, paid=False, next_payment_date=None,
-                             billing_email=None,
+                             billing_period='monthly', paid=False,
+                             next_payment_date=None, billing_email=None,
                              product_id=settings.WOO_PARENT_PROD_ID):
     """Creates a new WooCommerce order with a subscription for the user
-    using bundle_type, billing_period, price, etc as specified by
-    parameters.  Default values if not specified will be:
+    using bundle_type, billing_period, etc as specified by parameters.
+    Default values if not specified will be:
 
     bundle_type = BASIC
     billing_period = monthly
-    price = as provided by WC
     paid = False
     next_payment_date = 30 days from now
     billing_email = email set by WC
@@ -256,11 +262,6 @@ def create_user_subscription(user, bundle_type='BASIC',
     if next_payment_date is None:
         next_payment_date = timezone.now() + timezone.timedelta(days=30)
 
-    if price is None:
-        price = ''
-    else:
-        price = str(price)
-
     order_data = {
         "payment_method": "stripe",
         "payment_method_title": "Credit Card (Stripe)",
@@ -270,7 +271,6 @@ def create_user_subscription(user, bundle_type='BASIC',
                 "product_id": product_id,
                 "variation_id": variation_id,
                 "quantity": 1,
-                "price": price
             }
         ],
     }
@@ -281,6 +281,11 @@ def create_user_subscription(user, bundle_type='BASIC',
     order_data['customer_id'] = user_wc_id
     order = user.woo_post_json('orders', order_data)
 
+    # Set billing period for subscription.
+    bill_p = 'month'
+    if billing_period == 'annual':
+        bill_p = 'year'
+
     subs_data = {
         "line_items": [
             {
@@ -290,6 +295,7 @@ def create_user_subscription(user, bundle_type='BASIC',
             }
         ],
         "next_payment_date": next_payment_date.strftime('%Y-%m-%d %H:%M:%S'),
+        "billing_period": bill_p
     }
     subs_data['parent_id'] = order['id']
     subs_data['customer_id'] = order['customer_id']
@@ -311,7 +317,7 @@ def create_invitee_subscription(user):
         return result
 
     renewal_date = invitation.owner.limit_set.first().renewal_date
-    result = create_user_subscription(user, bundle_type='INVITED', price=0,
-                                      paid=True, billing_email=user.email,
+    result = create_user_subscription(user, bundle_type='INVITED', paid=True,
+                                      billing_email=user.email,
                                       next_payment_date=renewal_date)
     return result