Mega refactor

cli.py

@@ -1,17 +1,10 @@
 # -*- coding: utf-8 -*-
-"""
-Command-line interface for the register
-"""
-__authors__ = "Vincent Dumoulin"
-__copyright__ = "Copyright 2014, Vincent Dumoulin"
-__credits__ = ["Vincent Dumoulin"]
-__license__ = "GPL v2"
-__maintainer__ = "Vincent Dumoulin"
-__email__ = "vincent.dumoulin@umontreal.ca"
+"""Command-line interface for the register."""
 
 import argparse
-from pyplanck.register import Register
-from pyplanck.exceptions import CredentialException, ItemNotFoundException
+
+from .register import Register
+from .exceptions import CredentialException, ItemNotFoundException
 
 
 class CLI(object):
@@ -21,7 +14,7 @@ def quit(self):
     def login(self, token):
         try:
             self.register.login_employee(token)
-            self.prompt = self.register.get_employee_name() + " > "
+            self.prompt = self.register.employee_name + " > "
         except CredentialException:
             self.logger.warning("invalid employee token '" + token + "', " +
                                 "unable to login")
@@ -102,7 +95,7 @@ def count(self, count_string):
 
     def __init__(self, register, default_prompt="caisse-planck > "):
         self.register = register
-        self.logger = register.get_events_logger()
+        self.logger = register.events_logger
         self.default_prompt = default_prompt
         self.prompt = self.default_prompt
         self.end = False

exceptions.py

@@ -1,13 +1,5 @@
 # -*- coding: utf-8 -*-
-"""
-Exception-related classes
-"""
-__authors__ = "Vincent Dumoulin"
-__copyright__ = "Copyright 2014, Vincent Dumoulin"
-__credits__ = ["Vincent Dumoulin"]
-__license__ = "GPL v2"
-__maintainer__ = "Vincent Dumoulin"
-__email__ = "vincent.dumoulin@umontreal.ca"
+"""Exception-related classes."""
 
 
 class CredentialException(Exception):

immutables.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+"""Immutable objects."""
+from collections import namedtuple
+
+from .utils import (validate_name, validate_employee_level, validate_amount,
+                    validate_item_shortcut)
+
+
+Employee = namedtuple(
+    'Employee', 'name barcode code level', verbose=False)
+
+Item = namedtuple(
+    'Item', 'name price barcode category shortcut', verbose=False)
+Item.__new__.__defaults__ = ('General', None)
+
+
+def validate_employee(name, barcode, code, level):
+    validate_name(name, 'employee name')
+    validate_name(barcode, 'employee barcode')
+    validate_name(code, 'employee code')
+    validate_employee_level(level)
+
+
+def validate_item(name, price, barcode, category, shortcut):
+    validate_name(name, 'item name')
+    validate_amount(price, 'item price')
+    validate_name(barcode, 'item barcode')
+    validate_name(category, 'item category')
+    validate_item_shortcut(shortcut)