import logging

ACCOUNTS = {}

def get(username, password):
	return storage.get(username, "profile", "root")
	

class WeaveException(Exception):
	def __init__(self, message):
		self.message = message
	def __repr__(self):
		return "<WeaveException %s>" % self.message
	def __str__(self):
		return self.message

def nameIsAvailable(name):
	return not name in ACCOUNTS

def create(name, password, email):
	if name in ACCOUNTS:
		raise WeaveError("Account '%s' already exists." % name)
	ACCOUNTS[name] = {'password':password, 'email':email, 'storage':"http://localhost"}	

def delete(name):
	if name in ACCOUNTS:
		del ACCOUNTS[name]

def checkPassword(name, password):
	if name in ACCOUNTS:
		logging.debug("Checking %s password: %s =? %s" % (name, ACCOUNTS[name]['password'], password))
		return ACCOUNTS[name]['password'] == password
	return False

def getStorageNode(name):
	if name in ACCOUNTS:
		return ACCOUNTS[name]['storage']
	else:
		raise WeaveException("Unknown account")
		
def setPassword(name, password):
	if name in ACCOUNTS:
		logging.debug("Changed %s password to %s" % (name, password))
		ACCOUNTS[name]['password'] = password
	else:
		raise WeaveException("Unknown account")


def setEmail(name, email):
	if name in ACCOUNTS:
		logging.debug("Changed %s email to %s" % (name, email))
		ACCOUNTS[name]['email'] = email
	else:
		raise WeaveException("Unknown account")