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#!/usr/bin/env python3
import os
import sys
import yaml
def debug(*args):
sys.stderr.write('{}\n'.format(' '.join(str(x) for x in args)))
def round(f):
return int(f + 0.5)
def euros(cents):
return '%.02f' % (cents / 100.0)
class Item:
def __init__(self, itemdict):
self.dict = dict(itemdict)
bignum = 99999999
self.dict.update({
'unit_net_cents': bignum,
'unit_vat_cents': bignum,
'unit_cents': bignum,
'total_net_cents': bignum,
'total_vat_cents': bignum,
'total_cents': bignum,
})
self.compute()
self.check()
self.dict.update({
'unit_net_euros': euros(self['unit_net_cents']),
'unit_vat_euros': euros(self['unit_vat_cents']),
'unit_euros': euros(self['unit_cents']),
'total_net_euros': euros(self['total_net_cents']),
'total_vat_euros': euros(self['total_vat_cents']),
'total_euros': euros(self['total_cents']),
})
def __getitem__(self, key):
return self.dict[key]
def __setitem__(self, key, value):
self.dict[key] = value
def items(self):
return self.dict.items()
def check(self):
count = self['count']
vatpc = int(self['vatpc'] / 100.0)
unit_net_cents = self['unit_net_cents']
unit_vat_cents = self['unit_vat_cents']
unit_cents = self['unit_cents']
total_net_cents = self['total_net_cents']
total_vat_cents = self['total_vat_cents']
total_cents = self['total_cents']
assert unit_net_cents * count == total_net_cents, \
'{} * {} != {}'.format(unit_net_cents, count, total_net_cents)
assert unit_net_cents + unit_vat_cents == unit_cents, \
'{} + {} != {}'.format(unit_net_cents, unit_vat_cents, unit_cents)
assert total_cents == count * (unit_net_cents + unit_vat_cents), \
'{} != {} * ({} + {})'.format(
total_net_cents, count, unit_net_cents, unit_vat_cents)
if vatpc > 0:
assert unit_cents == unit_net_cents + unit_vat_cents, \
'{} != {} + {}'.format(unit_cents, unit_net_cents, unit_vat_cents)
assert total_vat_cents == count * unit_vat_cents, \
'{} != {} * {}'.format(total_vat_cents, count, unit_net_cents)
assert round(total_cents * vatpc) == total_vat_cents, \
'{} * {} != {}'.format(
total_cents, vatpc, total_vat_cents)
def compute(self):
count = self['count']
vatpc = float(self['vatpc']) / 100.0
unit_net_cents = self['unit_net_cents'] = round(self['unit'] * 100.0)
unit_vat_cents = self['unit_vat_cents'] = round(
unit_net_cents * vatpc / (1 - vatpc))
unit_cents = self['unit_cents'] = unit_net_cents + unit_vat_cents
self['total_net_cents'] = unit_net_cents * count
self['total_vat_cents'] = unit_vat_cents * count
self['total_cents'] = count * unit_cents
item_template = (
r'\raggedbottom #number# & '
r'\parbox[t]{5.5cm}{#desc#\\#date#} & '
r'\raggedbottom #count# & '
r'\raggedbottom #unit_net_euros# & '
r'\raggedbottom #unit_euros# & '
r'\raggedbottom #vatpc#\% & '
r'\raggedbottom #total_net_euros# & '
r'\raggedbottom #total_vat_euros# & '
r'\raggedbottom #total_euros# \\[2.2ex]'
)
def cat(filename):
with open(filename) as f:
return f.read()
def substitute_all(text, subst):
for key, value in subst.items():
pattern = '#{}#'.format(key)
text = str(value).join(text.split(pattern))
return text
dirname = os.path.dirname(__file__)
filename = os.path.join(dirname, 'template.tex')
text = cat(filename)
with open(sys.argv[1]) as f:
company = yaml.safe_load(f)
with open(sys.argv[2]) as f:
invoice = yaml.safe_load(f)
items = invoice['invoiceitems']
values = dict(company)
values.update(invoice)
itemtext = ''
sum_net_cents = 0
sum_vat_cents = 0
sum_cents = 0
for item in items:
it = Item(item)
itemtext += substitute_all(item_template, it)
sum_net_cents += it['total_net_cents']
sum_vat_cents += it['total_vat_cents']
sum_cents += it['total_cents']
values['itemtext'] = itemtext
values['totalraw'] = euros(sum_net_cents)
values['totalvat'] = euros(sum_vat_cents)
values['totalsum'] = euros(sum_cents)
values['amount'] = values['totalsum']
text = substitute_all(text, values)
sys.stdout.write(text)
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