--- /dev/null
+import hashlib
+
+def _localname(type):
+ mod = type.__module__
+ if mod.startswith("fulbank."):
+ mod = mod[8:]
+ return "%s.%s" % (mod, type.__name__)
+
+class account(object):
+ @property
+ def number(self): raise NotImplementedError("account.number")
+ @property
+ def name(self): raise NotImplementedError("account.name")
+ def transactions(self): raise NotImplementedError("account.transactions")
+
+ def __repr__(self):
+ return "#<%s %s: %r>" % (_localname(type(self)), self.number, self.name)
+
+class txnaccount(account):
+ @property
+ def balance(self): raise NotImplementedError("txnaccount.balance")
+ @property
+ def clearing(self): raise NotImplementedError("txnaccount.clearing")
+ @property
+ def fullnumber(self): raise NotImplementedError("txnaccount.fullnumber")
+
+class cardaccount(account):
+ pass
+
+class transaction(object):
+ @property
+ def value(self): raise NotImplementedError("transaction.value")
+ @property
+ def message(self): raise NotImplementedError("transaction.message")
+ @property
+ def date(self): raise NotImplementedError("transaction.date")
+
+ @property
+ def hash(self):
+ dig = hashlib.sha256()
+ dig.update(str(self.date.toordinal()).encode("ascii") + b"\0")
+ dig.update(self.message.encode("utf-8") + b"\0")
+ dig.update(str(self.value.amount).encode("ascii") + b"\0")
+ dig.update(self.value.currency.symbol.encode("ascii") + b"\0")
+ return dig.hexdigest()
+
+ def __repr__(self):
+ return "#<%s %s: %r>" % (_localname(type(self)), self.value, self.message)