def create(self, request):
try:
event = json.loads(request.body)
except:
return build_response(
request, 400, 'The provided data is not a valid JSON object')
if event['eventType'] != 'ProductCreationNotification':
return build_response(request, 200, 'OK')
product = event['event']['product']
# Extract order id
order_id = product['name'].split('=')[1]
# Get order
order = Order.objects.get(order_id=order_id)
contract = None
# Search contract
for cont in order.contracts:
if product['productOffering']['id'] == cont.offering.off_id:
contract = cont
if contract is None:
return build_response(
request, 404,
'There is not a contract for the specified product')
# Save contract id
contract.product_id = product['id']
order.save()
# Activate asset
try:
on_product_acquired(order, contract)
except:
return build_response(request, 400,
'The asset has failed to be activated')
# Change product state to active
inventory_client = InventoryClient()
inventory_client.activate_product(product['id'])
# Create the initial charge in the billing API
if len(contract.charges) == 1:
billing_client = BillingClient()
valid_to = None
# If the initial charge was a subscription is needed to determine the expiration date
if 'subscription' in contract.pricing_model:
valid_to = contract.pricing_model['subscription'][0][
'renovation_date']
billing_client.create_charge(contract.charges[0],
contract.product_id,
start_date=None,
end_date=valid_to)
return build_response(request, 200, 'OK')
def end_charging(self, transactions, free_contracts, concept):
"""
Process the second step of a payment once the customer has approved the charge
:param transactions: List of transactions applied including the total price and the related model
:param concept: Concept of the charge, it can be initial, renovation, or use
"""
# Update purchase state
if self._order.state == 'pending':
self._order.state = 'paid'
self._order.save()
time_stamp = datetime.utcnow()
self._order.pending_payment = {}
invoice_builder = InvoiceBuilder(self._order)
billing_client = BillingClient() if concept != 'initial' else None
for transaction in transactions:
contract = self._order.get_item_contract(transaction['item'])
contract.last_charge = time_stamp
valid_from, valid_to = self.end_processors[concept](contract, transaction)
# If the customer has been charged create the CDR
cdr_manager = CDRManager(self._order, contract)
cdr_manager.generate_cdr(transaction['related_model'], time_stamp.isoformat() + 'Z')
# Generate the invoice
invoice_path = ''
try:
invoice_path = invoice_builder.generate_invoice(contract, transaction, concept)
except:
pass
# Update contracts
charge = Charge(
date=time_stamp,
cost=transaction['price'],
duty_free=transaction['duty_free'],
currency=transaction['currency'],
concept=concept,
invoice=invoice_path
)
contract.charges.append(charge)
# Send the charge to the billing API to allow user accesses
if concept != 'initial':
# When the change concept is initial, the product has not been yet created in the inventory
billing_client.create_charge(charge, contract.product_id, start_date=valid_from, end_date=valid_to)
for free in free_contracts:
self._order.owner_organization.acquired_offerings.append(free.offering.pk)
self._order.owner_organization.save()
self._order.save()
self._send_notification(concept, transactions)
def end_charging(self, transactions, concept):
"""
Process the second step of a payment once the customer has approved the charge
:param transactions: List of transactions applied including the total price and the related model
:param concept: Concept of the charge, it can be initial, renovation, or use
"""
# Update purchase state
if self._order.state == 'pending':
self._order.state = 'paid'
self._order.save()
time_stamp = datetime.utcnow()
self._order.pending_payment = {}
invoice_builder = InvoiceBuilder(self._order)
billing_client = BillingClient() if concept != 'initial' else None
for transaction in transactions:
contract = self._order.get_item_contract(transaction['item'])
contract.last_charge = time_stamp
valid_from, valid_to = self.end_processors[concept](contract, transaction)
# If the customer has been charged create the CDR
cdr_manager = CDRManager(self._order, contract)
cdr_manager.generate_cdr(transaction['related_model'], time_stamp.isoformat() + 'Z')
# Generate the invoice
invoice_path = ''
try:
invoice_path = invoice_builder.generate_invoice(contract, transaction, concept)
except:
pass
# Update contracts
charge = Charge(
date=time_stamp,
cost=transaction['price'],
duty_free=transaction['duty_free'],
currency=transaction['currency'],
concept=concept,
invoice=invoice_path
)
contract.charges.append(charge)
# Send the charge to the billing API to allow user accesses
if concept != 'initial':
# When the change concept is initial, the product has not been yet created in the inventory
billing_client.create_charge(charge, contract.product_id, start_date=valid_from, end_date=valid_to)
self._order.save()
# TODO: Improve the rollback in case of unexpected exception
try:
# Send notifications if required
handler = NotificationsHandler()
if concept == 'initial':
# Send customer and provider notifications
handler.send_acquired_notification(self._order)
for cont in self._order.contracts:
handler.send_provider_notification(self._order, cont)
elif concept == 'recurring' or concept == 'usage':
handler.send_renovation_notification(self._order, transactions)
except:
pass