client-barcode: Split Status.commit() up into sub-functions

client-barcode/freitagskasse.py

@@ -267,63 +267,68 @@ class Status:
 	def commit(self):
 		assert(self.logged_in())
 
-		# Compress DepositCommands
-		dummy, initial_balance = self.transfers[0]
-		balance_before = initial_balance
-		compressed_deposit = DepositCommand(Decimal('0'))
-		others = list()
-		for (command, dummy) in list(self.transfers):
-			if isinstance(command, DepositCommand):
-				compressed_deposit.add(command)
-			else:
-				others.append((command, balance_before))
-				balance_before += command.difference()
-		if compressed_deposit.difference() != 0:
-			others.append((compressed_deposit, balance_before))
-		self.transfers = others
+		def compress_deposit_commands():
+			dummy, initial_balance = self.transfers[0]
+			balance_before = initial_balance
+			compressed_deposit = DepositCommand(Decimal('0'))
+			others = list()
+			for (command, dummy) in list(self.transfers):
+				if isinstance(command, DepositCommand):
+					compressed_deposit.add(command)
+				else:
+					others.append((command, balance_before))
+					balance_before += command.difference()
+			if compressed_deposit.difference() != 0:
+				others.append((compressed_deposit, balance_before))
+			self.transfers = others
 
-		# Compress BuyCommands, use a single bulkbuy
-		dummy, initial_balance = self.transfers[0]
-		balance_before = initial_balance
+		def process_buy_commands_combined():
+			# Compress BuyCommands, use a single bulkbuy
+			dummy, initial_balance = self.transfers[0]
+			balance_before = initial_balance
+			buy_commands = list()
+			non_buy_commands = list()
+			total_buy_diff = 0
 
-		buy_commands = list()
-		non_buy_commands = list()
-		total_buy_diff = 0
+			for command, dummy in self.transfers:
+				if isinstance(command, BuyCommand):
+					buy_commands.append(command)
+				else:
+					balance_before += command.difference()
+					non_buy_commands.append((command, balance_before))
 
-		for command, dummy in self.transfers:
-			if isinstance(command, BuyCommand):
-				buy_commands.append(command)
-			else:
-				balance_before += command.difference()
-				non_buy_commands.append((command, balance_before))
-
-		try:
-			net.bulk_buy(buy_commands, self.login_name)
-		except urllib2.HTTPError as e:
-			myDisplay.display_screen("Server error",'Server Error: %s' % str(e))
-			error_page('FEHLER bei Kommunikation mit Server "%s"' % str(e))
-		else:
-			self.transfers = non_buy_commands
-
-		# Process remaining command queue
-		for (command, balance_backup) in list(self.transfers):
 			try:
-				command.run(self.login_name)
+				net.bulk_buy(buy_commands, self.login_name)
 			except urllib2.HTTPError as e:
 				myDisplay.display_screen("Server error",'Server Error: %s' % str(e))
 				error_page('FEHLER bei Kommunikation mit Server "%s"' % str(e))
-				break
 			else:
-				self.transfers.pop(0)
+				self.transfers = non_buy_commands
 
-		if not self.transfers:
-			# Show final balance for some time
-			clear()
-			self.dump()
-			delay('Logout', 3)
+		def process_commands():
+			for (command, balance_backup) in list(self.transfers):
+				try:
+					command.run(self.login_name)
+				except urllib2.HTTPError as e:
+					myDisplay.display_screen("Server error",'Server Error: %s' % str(e))
+					error_page('FEHLER bei Kommunikation mit Server "%s"' % str(e))
+					break
+				else:
+					self.transfers.pop(0)
 
-			self.logout()
+		def finish():
+			if not self.transfers:
+				# Show final balance for some time
+				clear()
+				self.dump()
+				delay('Logout', 3)
 
+				self.logout()
+
+		compress_deposit_commands()
+		process_buy_commands_combined()
+		process_commands()
+		finish()
 
 	def find(self, barcode):
 		try: