50 lines
2.0 KiB
Python
50 lines
2.0 KiB
Python
import datetime
|
|
|
|
from orchestra.apps.bills.models import Invoice, Fee, BillLine, BillSubline
|
|
|
|
|
|
class BillsBackend(object):
|
|
def create_bills(self, account, lines):
|
|
invoice = None
|
|
bills = []
|
|
for order, nominal_price, size, ini, end, discounts in lines:
|
|
service = order.service
|
|
if service.is_fee:
|
|
fee, __ = Fee.objects.get_or_create(account=account, status=Fee.OPEN)
|
|
line = fee.lines.create(
|
|
rate=service.nominal_price,
|
|
amount=size,
|
|
total=nominal_price, tax=0,
|
|
description="{ini} to {end}".format(
|
|
ini=ini.strftime("%b, %Y"),
|
|
end=(end-datetime.timedelta(seconds=1)).strftime("%b, %Y")),
|
|
)
|
|
self.create_sublines(line, discounts)
|
|
bills.append(fee)
|
|
else:
|
|
if invoice is None:
|
|
invoice, __ = Invoice.objects.get_or_create(account=account,
|
|
status=Invoice.OPEN)
|
|
bills.append(invoice)
|
|
description = order.description
|
|
if service.billing_period != service.NEVER:
|
|
description += " {ini} to {end}".format(
|
|
ini=ini.strftime("%b, %Y"),
|
|
end=(end-datetime.timedelta(seconds=1)).strftime("%b, %Y"))
|
|
line = invoice.lines.create(
|
|
description=description,
|
|
rate=service.nominal_price,
|
|
amount=size,
|
|
total=nominal_price,
|
|
tax=service.tax,
|
|
)
|
|
self.create_sublines(line, discounts)
|
|
return bills
|
|
|
|
def create_sublines(self, line, discounts):
|
|
for name, value in discounts:
|
|
line.sublines.create(
|
|
description=_("Discount per %s") % name,
|
|
total=value,
|
|
)
|