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