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#!/usr/bin/env python3
import sys
import yaml
def debug(*args):
sys.stderr.write('{}\n'.format(' '.join(str(x) for x in args)))
def euros(cents):
return '%.02f' % (cents / 100.0)
class Item:
def __init__(self, itemdict):
self.dict = dict(itemdict)
count = itemdict['count']
if count == "":
return
unit_cents = int(itemdict['unit'] * 100.0)
vatpc = float(itemdict['vatpc']) / 100.0
self.total_cents = count * unit_cents
self.vat_cents = 0
if vatpc > 0:
total_cents_with_vat = int(unit_cents / (1.0 - vatpc))
self.vat_cents = total_cents_with_vat - unit_cents
debug('dict', self.dict)
debug('total_cents', self.total_cents)
debug('vatpc', vatpc)
debug('total_cents_with_vat', total_cents_with_vat)
debug('vat_cents', self.vat_cents)
debug('calc', int(vatpc * total_cents_with_vat))
assert int(total_cents_with_vat * vatpc) == self.vat_cents
assert total_cents_with_vat == unit_cents + self.vat_cents
self.dict.update({
'unit_euros': euros(unit_cents),
'total_cents': self.total_cents,
'total': euros(self.total_cents),
'unitwithvat': euros(self.total_cents + self.vat_cents),
'vat_cents': self.vat_cents,
'vat': euros(self.vat_cents),
'vatsum': euros(self.vat_cents * count),
'totalwithvat': euros(count * (unit_cents + self.vat_cents)),
})
item_template = (
r'\raggedbottom #number# & '
r'\parbox[t]{5.5cm}{#desc#\\#date#} & '
r'\raggedbottom #count# & '
r'\raggedbottom #unit_euros# & '
r'\raggedbottom #unitwithvat# & '
r'\raggedbottom #vatpc#\% & '
r'\raggedbottom #total# & '
r'\raggedbottom #vatsum# & '
r'\raggedbottom #totalwithvat# \\[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
text = cat('template.tex')
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 = ''
total_cents = 0
total_vat = 0
total_sum = 0
for item in items:
it = Item(item)
itemtext += substitute_all(item_template, it.dict)
total_cents += it.total_cents
total_vat += it.vat_cents
total_sum += it.total_cents + it.vat_cents
values['itemtext'] = itemtext
values['totalraw'] = euros(total_cents)
values['totalvat'] = euros(total_vat)
values['totalsum'] = euros(total_sum)
values['amount'] = values['totalsum']
text = substitute_all(text, values)
sys.stdout.write(text)
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