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ledger.py
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# -*- coding: utf-8 -*-
from datetime import datetime
class LedgerEntry:
def __init__(self):
self.date = None
self.description = None
self.change = None
def create_entry(date, description, change):
entry = LedgerEntry()
entry.date = datetime.strptime(date, '%Y-%m-%d')
entry.description = description
entry.change = change
return entry
def format_entries(currency, locale, entries):
if locale == 'en_US':
# Generate Header Row
table = 'Date'
for _ in range(7):
table += ' '
table += '| Description'
for _ in range(15):
table += ' '
table += '| Change'
for _ in range(7):
table += ' '
while len(entries) > 0:
table += '\n'
# Find next entry in order
min_entry_index = -1
for i in range(len(entries)):
entry = entries[i]
if min_entry_index < 0:
min_entry_index = i
continue
min_entry = entries[min_entry_index]
if entry.date < min_entry.date:
min_entry_index = i
continue
if (
entry.date == min_entry.date and
entry.change < min_entry.change
):
min_entry_index = i
continue
if (
entry.date == min_entry.date and
entry.change == min_entry.change and
entry.description < min_entry.description
):
min_entry_index = i
continue
entry = entries[min_entry_index]
entries.pop(min_entry_index)
# Write entry date to table
month = entry.date.month
month = str(month)
if len(month) < 2:
month = '0' + month
date_str = month
date_str += '/'
day = entry.date.day
day = str(day)
if len(day) < 2:
day = '0' + day
date_str += day
date_str += '/'
year = entry.date.year
year = str(year)
while len(year) < 4:
year = '0' + year
date_str += year
table += date_str
table += ' | '
# Write entry description to table
# Truncate if necessary
if len(entry.description) > 25:
for i in range(22):
table += entry.description[i]
table += '...'
else:
for i in range(25):
if len(entry.description) > i:
table += entry.description[i]
else:
table += ' '
table += ' | '
# Write entry change to table
if currency == 'USD':
change_str = ''
if entry.change < 0:
change_str = '('
change_str += '$'
change_dollar = abs(int(entry.change / 100.0))
dollar_parts = []
while change_dollar > 0:
dollar_parts.insert(0, str(change_dollar % 1000))
change_dollar = change_dollar // 1000
if len(dollar_parts) == 0:
change_str += '0'
else:
while True:
change_str += dollar_parts[0]
dollar_parts.pop(0)
if len(dollar_parts) == 0:
break
change_str += ','
change_str += '.'
change_cents = abs(entry.change) % 100
change_cents = str(change_cents)
if len(change_cents) < 2:
change_cents = '0' + change_cents
change_str += change_cents
if entry.change < 0:
change_str += ')'
else:
change_str += ' '
while len(change_str) < 13:
change_str = ' ' + change_str
table += change_str
elif currency == 'EUR':
change_str = ''
if entry.change < 0:
change_str = '('
change_str += u'€'
change_euro = abs(int(entry.change / 100.0))
euro_parts = []
while change_euro > 0:
euro_parts.insert(0, str(change_euro % 1000))
change_euro = change_euro // 1000
if len(euro_parts) == 0:
change_str += '0'
else:
while True:
change_str += euro_parts[0]
euro_parts.pop(0)
if len(euro_parts) == 0:
break
change_str += ','
change_str += '.'
change_cents = abs(entry.change) % 100
change_cents = str(change_cents)
if len(change_cents) < 2:
change_cents = '0' + change_cents
change_str += change_cents
if entry.change < 0:
change_str += ')'
else:
change_str += ' '
while len(change_str) < 13:
change_str = ' ' + change_str
table += change_str
return table
elif locale == 'nl_NL':
# Generate Header Row
table = 'Datum'
for _ in range(6):
table += ' '
table += '| Omschrijving'
for _ in range(14):
table += ' '
table += '| Verandering'
for _ in range(2):
table += ' '
while len(entries) > 0:
table += '\n'
# Find next entry in order
min_entry_index = -1
for i in range(len(entries)):
entry = entries[i]
if min_entry_index < 0:
min_entry_index = i
continue
min_entry = entries[min_entry_index]
if entry.date < min_entry.date:
min_entry_index = i
continue
if (
entry.date == min_entry.date and
entry.change < min_entry.change
):
min_entry_index = i
continue
if (
entry.date == min_entry.date and
entry.change == min_entry.change and
entry.description < min_entry.description
):
min_entry_index = i
continue
entry = entries[min_entry_index]
entries.pop(min_entry_index)
# Write entry date to table
day = entry.date.day
day = str(day)
if len(day) < 2:
day = '0' + day
date_str = day
date_str += '-'
month = entry.date.month
month = str(month)
if len(month) < 2:
month = '0' + month
date_str += month
date_str += '-'
year = entry.date.year
year = str(year)
while len(year) < 4:
year = '0' + year
date_str += year
table += date_str
table += ' | '
# Write entry description to table
# Truncate if necessary
if len(entry.description) > 25:
for i in range(22):
table += entry.description[i]
table += '...'
else:
for i in range(25):
if len(entry.description) > i:
table += entry.description[i]
else:
table += ' '
table += ' | '
# Write entry change to table
if currency == 'USD':
change_str = '$ '
if entry.change < 0:
change_str += '-'
change_dollar = abs(int(entry.change / 100.0))
dollar_parts = []
while change_dollar > 0:
dollar_parts.insert(0, str(change_dollar % 1000))
change_dollar = change_dollar // 1000
if len(dollar_parts) == 0:
change_str += '0'
else:
while True:
change_str += dollar_parts[0]
dollar_parts.pop(0)
if len(dollar_parts) == 0:
break
change_str += '.'
change_str += ','
change_cents = abs(entry.change) % 100
change_cents = str(change_cents)
if len(change_cents) < 2:
change_cents = '0' + change_cents
change_str += change_cents
change_str += ' '
while len(change_str) < 13:
change_str = ' ' + change_str
table += change_str
elif currency == 'EUR':
change_str = u'€ '
if entry.change < 0:
change_str += '-'
change_euro = abs(int(entry.change / 100.0))
euro_parts = []
while change_euro > 0:
euro_parts.insert(0, str(change_euro % 1000))
change_euro = change_euro // 1000
if len(euro_parts) == 0:
change_str += '0'
else:
while True:
change_str += euro_parts[0]
euro_parts.pop(0)
if len(euro_parts) == 0:
break
change_str += '.'
change_str += ','
change_cents = abs(entry.change) % 100
change_cents = str(change_cents)
if len(change_cents) < 2:
change_cents = '0' + change_cents
change_str += change_cents
change_str += ' '
while len(change_str) < 13:
change_str = ' ' + change_str
table += change_str
return table