k4ever/client-barcode/freitagslib/commands.py

#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2011 Sebastian Pipping <sebastian@pipping.org>
# Licensed under GPL v3 or later

import freitagslib.network as net


class Command(object):
	def difference(self):
		return self._difference


class DepositCommand(Command):
	def __init__(self, amount):
		self._difference = amount

	def run(self, user_name):
		net.deposit(self._difference, net.DEPOSIT_CASH, user_name)

	def label(self):
		return '%.2f Euro einzahlen' % self._difference


class BuyCommand(Command):
	def __init__(self, item):
		self.item = item
		self._difference = -item.price
		self._to_go = False  ## TODO session state, instead?

	def run(self, user_name):
		net.buy_item(self.item.id, self._to_go, user_name)

	def label(self):
		return self.item.name

	def is_to_go(self):
		return self._to_go

	def set_to_go(self, to_go):
		self._to_go = to_go

	def deposit(self):
		return self.item.deposit


class ToGoCommand(Command):
	def __init__(self, buy_command):
		self.buy_command = buy_command
		self._difference = -buy_command.item.deposit

	def run(self, *args, **kvargs):
		pass

	def label(self):
		return '%s - Pfand' % self.buy_command.label()