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# Copyright 2016 Egor Tensin <Egor.Tensin@gmail.com>
# This file is licensed under the terms of the MIT License.
# See LICENSE.txt for details.
from collections.abc import MutableMapping
from vk.user import User
class OnlinePeriodEnumerator(MutableMapping):
def __init__(self):
self._records_by_user = {}
def __getitem__(self, key):
return self._records_by_user[self._normalize_key(key)]
def __setitem__(self, key, value):
self._records_by_user[self._normalize_key(key)] = value
def __delitem__(self, key):
del self._records_by_user[self._normalize_key(key)]
def __iter__(self):
return iter(self._records_by_user)
def __len__(self):
return len(self._records_by_user)
@staticmethod
def _normalize_key(key):
return key.get_uid() if isinstance(key, User) else key
def enum(self, db_reader):
for record in db_reader:
period = self._insert_record(record)
#print(period)
if period is not None:
yield period
def _insert_record(self, record):
return self._insert_user(record.to_user())
def _known_user(self, user):
return user.get_uid() in self._records_by_user
def _unknown_user(self, user):
return not self._known_user(user)
def _insert_user(self, user):
if user not in self or self[user].is_offline():
self[user] = user
#print(2)
return None
if user.is_online():
#print(3)
print(user._fields)
return None
period = user, self[user].get_last_seen_time(), user.get_last_seen_time()
self[user] = user
return period
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