def sum_obligations(messages, user_id):
balances = defaultdict(float)
errors = list()
for m in messages:
try:
t = Transaction(m)
value, party = t.obligation_to_user(user_id)
balances[party] += value
except TransactionParseError as err:
errors.append(err)
return balances, errors
def status_for_user(user_id, show_unparsed=False):
user_list = users()
balances = defaultdict(float)
unparsed = list()
messages = transactions(user_id)
for m in messages:
transaction = Transaction(m.get('text'))
if transaction.parsed:
value, party = transaction.obligation_to_user(user_id)
balances[party] += value
else:
unparsed.append(m.get('text'))
response = response_for_balances(balances, user_list)
if show_unparsed and len(unparsed):
response += "\n" + \
"\n".join(["unabled to parse message: %s" % m for m in unparsed])
total_value = sum(b for b in balances.values())
decorator = decoration_for_balance(total_value)
preamble = "%s status for %s %s\n" % (
decorator, user_name_for_id(user_id, user_list), decorator)
return preamble + response
