from http.server import BaseHTTPRequestHandler, HTTPServer
-import sys
import os
import html
import jinja2
import decimal
+import datetime
from urllib.parse import parse_qs, urlparse
hostName = "localhost"
serverPort = 8082
pass
-def handled_error_exit(msg):
- print(f"ERROR: {msg}")
- sys.exit(1)
-
-
def apply_booking_to_account_balances(account_sums, account, currency, amount):
if not account in account_sums:
account_sums[account] = {currency: amount}
bookings = []
comments = []
lines = lines.copy() + [''] # to ensure a booking-ending last line
+ last_date = ''
for i, line in enumerate(lines):
prefix = f"line {i}"
# we start with the case of an utterly empty line
datetime.datetime.strptime(date_string, '%Y-%m-%d')
except ValueError:
raise HandledException(f"{prefix} bad date string: {date_string}")
+ if last_date > date_string:
+ raise HandledException(f"{prefix} out-of-order-date")
+ last_date = date_string
try:
description = toks[1]
except IndexError:
raise HandledException(f"{prefix} amount has multiple dots: {value}")
dots_counted += 1
amount_string += c
- if len(amount_string) == 0:
- raise HandledException(f"{prefix} amount missing: {value}")
if len(currency) == 0:
raise HandledException(f"{prefix} currency missing: {value}")
- amount = decimal.Decimal(amount_string)
+ if len(amount_string) > 0:
+ amount = decimal.Decimal(amount_string)
booking_lines += [(account_name, amount, currency)]
if inside_booking:
raise HandledException(f"{prefix} last booking unfinished")
def get_lines(self, start, end):
return self.real_lines[start:end]
- def replace(self, start, end, lines):
+ def write_db(self, text, mode='w'):
import shutil
if os.path.exists(self.lock_file):
raise HandledException('Sorry, lock file!')
- if os.path.exists(self.db_file):
- shutil.copy(self.db_file, self.db_file + ".bak")
f = open(self.lock_file, 'w+')
f.close()
- total_lines = self.real_lines[:start] + lines + self.real_lines[end:]
- text = '\n'.join(total_lines)
- with open(self.db_file, 'w') as f:
+
+ # always back up most recent to .bak
+ bakpath = f'{self.db_file}.bak'
+ shutil.copy(self.db_file, bakpath)
+
+ # collect modification times of numbered .bak files
+ bak_prefix = f'{bakpath}.'
+ backup_dates = []
+ i = 0
+ bak_as = f'{bak_prefix}{i}'
+ while os.path.exists(bak_as):
+ mod_time = os.path.getmtime(bak_as)
+ backup_dates += [str(datetime.datetime.fromtimestamp(mod_time))]
+ i += 1
+ bak_as = f'{bak_prefix}{i}'
+
+ # collect what numbered .bak files to save
+ to_save = []
+ datetime_len = 19
+ now = str(datetime.datetime.now())[:datetime_len]
+ while datetime_len > 2:
+ for i, date in reversed(list(enumerate(backup_dates))):
+ if date[:datetime_len] == now:
+ if i not in to_save:
+ to_save += [i]
+ break
+ datetime_len -= 1
+ now = now[:datetime_len]
+
+ # remove redundant backup files
+ j = 0
+ for i in reversed(to_save):
+ if i != j:
+ source = f'{bak_prefix}{i}'
+ target = f'{bak_prefix}{j}'
+ shutil.move(source, target)
+ j += 1
+ for i in range(j, len(backup_dates)):
+ try:
+ os.remove(f'{bak_prefix}{i}')
+ except FileNotFoundError:
+ pass
+
+ #
+ shutil.copy(self.db_file, f'{bak_prefix}{j}')
+ with open(self.db_file, mode) as f:
f.write(text);
os.remove(self.lock_file)
+ def replace(self, start, end, lines):
+ total_lines = self.real_lines[:start] + lines + self.real_lines[end:]
+ text = '\n'.join(total_lines)
+ self.write_db(text)
+
def append(self, lines):
- import shutil
- if os.path.exists(self.lock_file):
- raise HandledException('Sorry, lock file!')
- if os.path.exists(self.db_file):
- shutil.copy(self.db_file, self.db_file + ".bak")
- f = open(self.lock_file, 'w+')
- f.close()
- with open(self.db_file, 'a') as f:
- f.write('\n\n' + '\n'.join(lines) + '\n\n');
- os.remove(self.lock_file)
+ text = '\n\n' + '\n'.join(lines) + '\n\n'
+ self.write_db(text, 'a')
def add_taxes(self, lines, finish=False):
ret = []
buffer_expenses = 0
kk_expenses = 0
est_expenses = 0
+ months_passed = -int(finish)
for b in self.bookings:
if date == b.date_string:
break
kk_expenses += b.account_changes[acc_kk]['€']
if acc_est in acc_keys:
est_expenses += b.account_changes[acc_est]['€']
- if finish and acc_kk_add in acc_keys and acc_kk_minimum in acc_keys:
- last_monthbreak_kk_add = b.account_changes[acc_kk_add]['€']
- last_monthbreak_est = b.account_changes[acc_est]['€']
- last_monthbreak_kk_minimum = b.account_changes[acc_kk_minimum]['€']
- last_monthbreak_assets = b.account_changes[acc_buffer]['€']
+ if acc_kk_add in acc_keys and acc_kk_minimum in acc_keys:
+ months_passed += 1
+ if finish:
+ last_monthbreak_kk_add = b.account_changes[acc_kk_add]['€']
+ last_monthbreak_est = b.account_changes[acc_est]['€']
+ last_monthbreak_kk_minimum = b.account_changes[acc_kk_minimum]['€']
+ last_monthbreak_assets = b.account_changes[acc_buffer]['€']
old_needed_income = last_monthbreak_assets + last_monthbreak_kk_add + last_monthbreak_kk_minimum + last_monthbreak_est
if finish:
ret += [f' {acc_est} {-last_monthbreak_est}€ ; for old assumption of needed income: {old_needed_income}€']
E1 = decimal.Decimal(15999)
E2 = decimal.Decimal(62809)
E3 = decimal.Decimal(277825)
- months_passed = int(date[5:7]) - 1
while True:
zvE = buffer_expenses - kk_expenses + (12 - months_passed) * needed_income_before_kk
if finish:
final_minus = expenses_so_far + old_needed_income + diff
ret += [f' {acc_assets} {-diff} €']
ret += [f' {acc_assets} {final_minus} €']
- ret += [f' {acc_buffer} {-final_minus} €']
+ year_needed = buffer_expenses + final_minus + (12 - months_passed - 1) * final_minus
+ ret += [f' {acc_buffer} {-final_minus} € ; assume as to earn in year: {acc_buffer} + {12 - months_passed - 1} * this = {-year_needed}']
return ret
.full_line_comment { display: block; white-space: nowrap; width: 0; }
</style>
<body>
-<a href="/ledger1">ledger1</a>
-<a href="/ledger2">ledger2</a>
+<a href="/">ledger</a>
<a href="/balance">balance</a>
<a href="/add_free">add free</a>
<a href="/add_structured">add structured</a>
<hr />
"""
booking_tmpl = jinja2.Template("""
-<p id="{{start}}"><a href="#{{start}}">{{date}}</a> {{desc}} <span class="comment">{{head_comment|e}}</span><br />
+<p id="{{nth}}"><a href="#{{nth}}">{{date}}</a> {{desc}} <span class="comment">{{head_comment|e}}</span><br />
<span class="meta">[edit: <a href="/add_structured?start={{start}}&end={{end}}">structured</a>
/ <a href="/add_free?start={{start}}&end={{end}}">free</a>
| copy:<a href="/copy_structured?start={{start}}&end={{end}}">structured</a>
/ <a href="/copy_free?start={{start}}&end={{end}}">free</a>
-| balance <a href="/balance?stop={{date}}&plus={{steps_after_date}}">before</a> or <a href="/balance?stop={{date}}&plus={{steps_after_date + 1}}">after</a>
+| <a href="/balance?stop={{nth+1}}">balance after</a>
]</span>
<table>
{% for l in booking_lines %}
{% endfor %}
</table></p>
""")
+ add_form_footer = """
+<input type="hidden" name="start" value={{start}} />
+<input type="hidden" name="end" value={{end}} />
+<input type="submit" name="save" value="save!">
+</form>
+"""
footer = "</body>\n<html>"
def do_POST(self):
- db = Database()
- length = int(self.headers['content-length'])
- postvars = parse_qs(self.rfile.read(length).decode(), keep_blank_values=1)
- parsed_url = urlparse(self.path)
- lines = []
- add_empty_line = None
- start = int(postvars['start'][0])
- end = int(postvars['end'][0])
- if '/add_structured' == parsed_url.path and not 'revert' in postvars.keys():
- date = postvars['date'][0]
- description = postvars['description'][0]
- start_comment = postvars['line_0_comment'][0]
- lines = [f'{date} {description} ; {start_comment}']
- if 'line_0_add' in postvars.keys():
- add_empty_line = 0
- i = j = 1
- while f'line_{i}_comment' in postvars.keys():
- if f'line_{i}_delete' in postvars.keys():
- i += 1
- continue
- elif f'line_{i}_delete_after' in postvars.keys():
- break
- elif f'line_{i}_add' in postvars.keys():
- add_empty_line = j
- account = postvars[f'line_{i}_account'][0]
- amount = postvars[f'line_{i}_amount'][0]
- currency = postvars[f'line_{i}_currency'][0]
- comment = postvars[f'line_{i}_comment'][0]
- i += 1
- new_main = f'{account} {amount} {currency}'
- if '' == new_main.rstrip() == comment.rstrip(): # don't write empty lines
- continue
- j += 1
- new_line = new_main
- if comment.rstrip() != '':
- new_line += f' ; {comment}'
- lines += [new_line]
- if 'add_taxes' in postvars.keys():
- lines += db.add_taxes(lines, finish=False)
- elif 'add_taxes2' in postvars.keys():
- lines += db.add_taxes(lines, finish=True)
- elif '/add_free' == parsed_url.path:
- lines = postvars['booking'][0].splitlines()
try:
+ parsed_url = urlparse(self.path)
+ length = int(self.headers['content-length'])
+ postvars = parse_qs(self.rfile.read(length).decode(), keep_blank_values=1)
+ start = int(postvars['start'][0])
+ end = int(postvars['end'][0])
+
+ db = Database()
+ add_empty_line = None
+ lines = []
+ if '/add_structured' == parsed_url.path and not 'revert' in postvars.keys():
+ date = postvars['date'][0]
+ description = postvars['description'][0]
+ start_comment = postvars['line_0_comment'][0]
+ lines = [f'{date} {description} ; {start_comment}']
+ if 'line_0_add' in postvars.keys():
+ add_empty_line = 0
+ i = j = 1
+ while f'line_{i}_comment' in postvars.keys():
+ if f'line_{i}_delete' in postvars.keys():
+ i += 1
+ continue
+ elif f'line_{i}_delete_after' in postvars.keys():
+ break
+ elif f'line_{i}_add' in postvars.keys():
+ add_empty_line = j
+ account = postvars[f'line_{i}_account'][0]
+ amount = postvars[f'line_{i}_amount'][0]
+ currency = postvars[f'line_{i}_currency'][0]
+ comment = postvars[f'line_{i}_comment'][0]
+ i += 1
+ new_main = f' {account} {amount}'
+ if '' == new_main.rstrip() == comment.rstrip(): # don't write empty lines, ignore currency if nothing else set
+ continue
+ if len(amount.rstrip()) > 0:
+ new_main += f' {currency}'
+ j += 1
+ new_line = new_main
+ if comment.rstrip() != '':
+ new_line += f' ; {comment}'
+ lines += [new_line]
+ if 'add_sink' in postvars.keys():
+ temp_lines = lines.copy() + ['_']
+ try:
+ temp_bookings, _ = parse_lines(temp_lines)
+ for currency in temp_bookings[0].sink:
+ amount = temp_bookings[0].sink[currency]
+ lines += [f'Assets {amount:.2f} {currency}']
+ except HandledException:
+ pass
+ if 'add_taxes' in postvars.keys():
+ lines += db.add_taxes(lines, finish=False)
+ elif 'add_taxes2' in postvars.keys():
+ lines += db.add_taxes(lines, finish=True)
+ elif '/add_free' == parsed_url.path:
+ lines = postvars['booking'][0].splitlines()
+
if ('save' in postvars.keys()) or ('check' in postvars.keys()):
_, _ = parse_lines(lines)
+
if 'save' in postvars.keys():
if start == end == 0:
db.append(lines)
redir_url = f'/#last'
else:
db.replace(start, end, lines)
- redir_url = f'/#{start}'
- self.send_response(301)
- self.send_header('Location', redir_url)
- self.end_headers()
- else:
+ nth = 0
+ for i, b in enumerate(db.bookings):
+ if b.start_line == start:
+ nth = i
+ break
+ redir_url = f'/#{nth}'
+ self.send_code_and_headers(301, [('Location', redir_url)])
+ else: # implicit assumption: this only happens on /add_structured flows
page = self.header + self.add_structured(db, start, end, temp_lines=lines, add_empty_line=add_empty_line) + self.footer
- self.send_response(200)
- self.send_header("Content-type", "text/html")
- self.end_headers()
- self.wfile.write(bytes(page, "utf-8"))
+ self.send_HTML(page)
except HandledException as e:
- self.send_response(400)
- self.send_header("Content-type", "text/html")
- self.end_headers()
- page = f'{self.header}ERROR: {e}{self.footer}'
- self.wfile.write(bytes(page, "utf-8"))
+ self.fail_400(e)
def do_GET(self):
- self.send_response(200)
- self.send_header("Content-type", "text/html")
+ try:
+ parsed_url = urlparse(self.path)
+ params = parse_qs(parsed_url.query)
+ start = int(params.get('start', ['0'])[0])
+ end = int(params.get('end', ['0'])[0])
+ db = Database()
+ page = self.header
+ if parsed_url.path == '/balance':
+ stop = params.get('stop', [None])[0]
+ page += self.balance_as_html(db, stop)
+ elif parsed_url.path == '/add_free':
+ page += self.add_free(db, start, end)
+ elif parsed_url.path == '/add_structured':
+ page += self.add_structured(db, start, end)
+ elif parsed_url.path == '/copy_free':
+ page += self.add_free(db, start, end, copy=True)
+ elif parsed_url.path == '/copy_structured':
+ page += self.add_structured(db, start, end, copy=True)
+ else:
+ page += self.ledger_as_html(db)
+ page += self.footer
+ self.send_HTML(page)
+ except HandledException as e:
+ self.fail_400(e)
+
+ def fail_400(self, e):
+ page = f'{self.header}ERROR: {e}{self.footer}'
+ self.send_HTML(page, 400)
+
+ def send_HTML(self, html, code=200):
+ self.send_code_and_headers(code, [('Content-type', 'text/html')])
+ self.wfile.write(bytes(html, "utf-8"))
+
+ def send_code_and_headers(self, code, headers=[]):
+ self.send_response(code)
+ for fieldname, content in headers:
+ self.send_header(fieldname, content)
self.end_headers()
- db = Database()
- parsed_url = urlparse(self.path)
- page = self.header + ''
- params = parse_qs(parsed_url.query)
- start = int(params.get('start', ['0'])[0])
- end = int(params.get('end', ['0'])[0])
- if parsed_url.path == '/balance':
- stop_date = params.get('stop', [None])[0]
- plus = int(params.get('plus', [0])[0])
- page += self.balance_as_html(db, stop_date, plus)
- elif parsed_url.path == '/add_free':
- page += self.add_free(db, start, end)
- elif parsed_url.path == '/add_structured':
- page += self.add_structured(db, start, end)
- elif parsed_url.path == '/copy_free':
- page += self.add_free(db, start, end, copy=True)
- elif parsed_url.path == '/copy_structured':
- page += self.add_structured(db, start, end, copy=True)
- elif parsed_url.path == '/ledger2':
- page += self.ledger2_as_html(db)
- else:
- page += self.ledger_as_html(db)
- page += self.footer
- self.wfile.write(bytes(page, "utf-8"))
- def balance_as_html(self, db, stop_date=None, plus=0):
+ def balance_as_html(self, db, until=None):
+ bookings = db.bookings[:until if until is None else int(until)]
lines = []
- bookings = db.bookings
- if stop_date:
- bookings = []
- i = -1
- for b in db.bookings:
- if b.date_string == stop_date:
- if -1 == i:
- i = 0
- if i >= plus:
- break
- if i > -1:
- i += 1
- bookings += [b]
account_tree, account_sums = bookings_to_account_tree(bookings)
def print_subtree(lines, indent, node, subtree, path):
line = f"{indent}{node}"
return f"<pre>{content}</pre>"
def ledger_as_html(self, db):
- elements_to_write = []
- account_sums = {} ##
- nth_of_same_date = 0
- same_date = ''
- for booking in db.bookings:
- if booking.date_string == same_date:
- nth_of_same_date += 1
- else:
- same_date = booking.date_string
- nth_of_same_date = 0
- booking_end = booking.start_line + len(booking.lines)
- booking_lines = []
- for booking_line in booking.lines[1:]:
- if booking_line == '':
- continue
- account = booking_line[0] ##
- account_toks = account.split(':') ##
- path = '' ##
- for tok in account_toks: ##
- path += tok ##
- if not path in account_sums.keys(): ##
- account_sums[path] = {} ##
- path += ':' ##
- moneys = [] ##
- money = ''
- if booking_line[1] is not None:
- moneys += [(booking_line[1], booking_line[2])] ##
- money = f'{moneys[0][0]} {moneys[0][1]}'
- else: ##
- for currency, amount in booking.sink.items(): ##
- moneys += {(amount, currency)} ##
- money = '[' ##
- for m in moneys: ##
- money += f'{m[0]} {m[1]} ' ##
- money += ']' ##
- balance = '' ##
- for amount, currency in moneys: ##
- path = '' ##
- for tok in account_toks: ##
- path += tok ##
- if not currency in account_sums[path].keys(): ##
- account_sums[path][currency] = 0 ##
- account_sums[path][currency] += amount ##
- path += ':' ##
- balance += f'{account_sums[account][currency]} {currency}' ##
- booking_lines += [{'acc': booking_line[0], 'money':money, 'comment':balance}] ##
- elements_to_write += [self.booking_tmpl.render(
- start=booking.start_line,
- end=booking_end,
- date=booking.date_string,
- desc=booking.description,
- head_comment=db.comments[booking.start_line],
- steps_after_date=nth_of_same_date,
- booking_lines = booking_lines)]
- return '\n'.join(elements_to_write)
-
- def ledger2_as_html(self, db):
- single_c_tmpl = jinja2.Template('<span class="comment">{{c|e}}</span><br />')
+ single_c_tmpl = jinja2.Template('<span class="comment">{{c|e}}</span><br />') ##
elements_to_write = []
last_i = i = 0 ##
- nth_of_same_date = 0
- same_date = ''
- for booking in db.bookings:
- if booking.date_string == same_date:
- nth_of_same_date += 1
- else:
- same_date = booking.date_string
- nth_of_same_date = 0
- i = booking.start_line ##
- elements_to_write += [single_c_tmpl.render(c=c) for c in db.comments[last_i:i] if c != ''] ##
+ for nth, booking in enumerate(db.bookings):
booking_end = last_i = booking.start_line + len(booking.lines)
booking_lines = []
+ i = booking.start_line ##
+ elements_to_write += [single_c_tmpl.render(c=c) for c in db.comments[last_i:i] if c != ''] ##
for booking_line in booking.lines[1:]:
- i += 1
- comment = db.comments[i]
+ i += 1 ##
+ comment = db.comments[i] ##
if booking_line == '':
- booking_lines += [{'acc': None, 'money': None, 'comment': comment}]
+ booking_lines += [{'acc': None, 'money': None, 'comment': comment}] ##
continue
account = booking_line[0]
money = ''
money = f'{booking_line[1]} {booking_line[2]}'
booking_lines += [{'acc': booking_line[0], 'money':money, 'comment':comment}] ##
elements_to_write += [self.booking_tmpl.render(
+ nth=nth,
start=booking.start_line,
end=booking_end,
date=booking.date_string,
desc=booking.description,
head_comment=db.comments[booking.start_line],
- steps_after_date=nth_of_same_date,
booking_lines = booking_lines)]
- elements_to_write += [single_c_tmpl.render(c=c) for c in db.comments[last_i:] if c != '']
+ elements_to_write += [single_c_tmpl.render(c=c) for c in db.comments[last_i:] if c != ''] #
return '\n'.join(elements_to_write)
def add_free(self, db, start=0, end=0, copy=False):
{% for line in lines %}{{ line }}
{% endfor %}
</textarea>
-<input type="hidden" name="start" value={{start}} />
-<input type="hidden" name="end" value={{end}} />
-<input type="submit" name="save" value="save!">
-</form>
-""")
+""" + self.add_form_footer)
lines = db.get_lines(start, end)
if copy:
start = end = 0
<input type="submit" name="revert" value="revert" />
<input type="submit" name="add_taxes" value="add taxes" />
<input type="submit" name="add_taxes2" value="add taxes2" />
+<input type="submit" name="add_sink" value="add sink" />
<br />
<input name="date" value="{{date|e}}" size=9 />
<input name="description" value="{{desc|e}}" list="descriptions" />
{% endfor %}
</datalist>
{% endfor %}
-<input type="hidden" name="start" value={{start}} />
-<input type="hidden" name="end" value={{end}} />
-<input type="submit" name="save" value="save!">
-</form>
-""")
- import datetime
+""" + self.add_form_footer)
lines = temp_lines if len(''.join(temp_lines)) > 0 else db.get_lines(start, end)
bookings, comments = parse_lines(lines, validate_bookings=False)
if len(bookings) > 1:
desc = head_comment = ''
if len(bookings) == 0:
for i in range(1, 3):
- booking_lines += [{'i': i, 'acc': '', 'amt': '', 'curr': '', 'comment': ''}]
+ booking_lines += [{'i': i, 'acc': '', 'amt': '', 'curr': '€', 'comment': ''}]
date=today
else:
booking = bookings[0]
'i': i,
'acc': account,
'amt': amount,
- 'curr': currency if currency else '',
+ 'curr': currency if currency else '€',
'comment': comments[i],
'comm_cols': len(comments[i])}]
content += tmpl.render(
projects / misc / blobdiff