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181 lines
4.2 KiB
181 lines
4.2 KiB
13 years ago
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#! /usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2011 Sebastian Pipping <sebastian@pipping.org>
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# Licensed under GPL v3 or later
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from __future__ import print_function
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import sys
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import decimal
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import os
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import time
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def clear():
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os.system('clear')
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CODES = {
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'UNDO':('undo',),
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'COMMIT':('commit',),
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'DEPOSIT 0.01':('deposit', decimal.Decimal('0.01')),
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'DEPOSIT 0.05':('deposit', decimal.Decimal('0.05')),
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'DEPOSIT 0.10':('deposit', decimal.Decimal('0.10')),
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'DEPOSIT 0.50':('deposit', decimal.Decimal('0.50')),
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'DEPOSIT 1.00':('deposit', decimal.Decimal('1.00')),
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'DEPOSIT 5.00':('deposit', decimal.Decimal('5.00')),
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'DEPOSIT 10.00':('deposit', decimal.Decimal('10.00')),
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'DEPOSIT 50.00':('deposit', decimal.Decimal('50.00')),
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'731453722620':('buy', 'CD Eagle Eye-Cherry - Desireless', decimal.Decimal('8.00')),
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# http://www.gearfuse.com/wp-content/uploads/2008/07/mate.png
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'4029764001807':('buy', 'Club Mate 0.5l', decimal.Decimal('0.60')),
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'4013595054149':('buy', 'Vita Cola 1.0l', decimal.Decimal('0.79')),
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}
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def delay(what, seconds):
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for i in xrange(seconds, 0, -1):
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if i < seconds:
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sys.stdout.write('\r')
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sys.stdout.write('%s in %d Sekunden... ' % (what, i))
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sys.stdout.flush()
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time.sleep(1)
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def warn_balance():
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print('Kontostrand im Minus, NICHT cool!')
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def error_page(message):
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clear()
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print(message)
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print()
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delay('Weiter', 3)
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class Status:
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def __init__(self):
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self._reset()
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def _reset(self):
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self.login_code = None
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self.login_name = None
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self.balance = None
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self.transfers = None
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def dump(self):
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if self.logged_in():
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print('Eingeloggt als: %s' % (self.login_name))
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print()
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if self.transfers:
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print('Geplante Änderungen:')
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initial_balance = self.transfers[0][2]
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print(('%3s %-40s %c %6.2f Euro') % ('', '', ' ' if initial_balance > 0 else '-', abs(initial_balance)))
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for i, (label, difference, balance_backup) in enumerate(self.transfers):
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print(('%2d) %-40s %c %6.2f Euro') % (i + 1, label, '+' if difference > 0 else '-', abs(difference)))
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print(('%3s %-40s %8s') % ('', '', '============='))
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print(('%3s %-40s %c %6.2f Euro') % ('', '', ' ' if self.balance > 0 else '-', abs(self.balance)))
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if self.balance < 0:
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warn_balance()
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print()
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print('Committen nicht vergessen!')
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else:
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print('Kontostand beträgt: %.2f Euro' % (self.balance))
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if self.balance < 0:
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print()
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warn_balance()
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else:
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print('Bitte einloggen.')
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print()
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print('Scanne dazu deine ID-Karte mit dem Barcode-Leser.')
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print()
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def logged_in(self):
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return self.login_code is not None
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def login(self, code):
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assert(not self.logged_in())
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self.login_code = code
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self.login_name = 'Sebastian Pipping' ############
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self.balance = decimal.Decimal('0.20') ######################
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self.transfers = list()
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def commit(self):
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assert(self.logged_in())
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# TODO save balance
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self.transfers = None
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# Show final balance for some time
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clear()
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self.dump()
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delay('Logout', 3)
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# Logout
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self._reset()
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def _do_money(self, label, difference):
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log_entry = (label, difference, self.balance)
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self.transfers.append(log_entry)
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self.balance = self.balance + difference
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def buy(self, title, price):
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assert(self.logged_in())
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self._do_money(title, -price)
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def deposit(self, amount):
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assert(self.logged_in())
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self._do_money('%.2f Euro einzahlen' % amount, amount)
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def undo(self):
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assert(self.logged_in())
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if self.transfers:
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(label, difference, balance_backup) = self.transfers[-1]
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self.transfers.pop()
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self.balance = balance_backup
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else:
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error_page('FEHLER: Nichts da, was ich rückgängig machen könnte.')
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def print_prompt():
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sys.stdout.write(">>> ")
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def handle(line, status):
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if line == 'exit':
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clear()
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sys.exit(0)
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if status.logged_in():
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if line in CODES:
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call = CODES[line]
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method = call[0]
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params = call[1:]
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getattr(status, method)(*params)
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else:
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error_page('FEHLER: Aktion oder Ware "%s" nicht bekannt' % line)
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else:
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status.login(line)
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def main():
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status = Status()
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while True:
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clear()
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status.dump()
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print_prompt()
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l = sys.stdin.readline()
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if not l:
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break
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line = l.rstrip()
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handle(line, status)
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if __name__ == '__main__':
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main()
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