# -*- coding: utf-8 -*-
'''
    flask_login.signals
    -------------------
    This module provides signals to get notified when Flask-Login performs
    certain actions.
'''


from flask.signals import Namespace


_signals = Namespace()


#: Sent when a user is logged in. In addition to the app (which is the
#: sender), it is passed `user`, which is the user being logged in.
user_logged_in = _signals.signal('logged-in')

#: Sent when a user is logged out. In addition to the app (which is the
#: sender), it is passed `user`, which is the user being logged out.
user_logged_out = _signals.signal('logged-out')

#: Sent when the user is loaded from the cookie. In addition to the app (which
#: is the sender), it is passed `user`, which is the user being reloaded.
user_loaded_from_cookie = _signals.signal('loaded-from-cookie')

#: Sent when the user is loaded from the header. In addition to the app (which
#: is the #: sender), it is passed `user`, which is the user being reloaded.
user_loaded_from_header = _signals.signal('loaded-from-header')

#: Sent when the user is loaded from the request. In addition to the app (which
#: is the #: sender), it is passed `user`, which is the user being reloaded.
user_loaded_from_request = _signals.signal('loaded-from-request')

#: Sent when a user's login is confirmed, marking it as fresh. (It is not
#: called for a normal login.)
#: It receives no additional arguments besides the app.
user_login_confirmed = _signals.signal('login-confirmed')

#: Sent when the `unauthorized` method is called on a `LoginManager`. It
#: receives no additional arguments besides the app.
user_unauthorized = _signals.signal('unauthorized')

#: Sent when the `needs_refresh` method is called on a `LoginManager`. It
#: receives no additional arguments besides the app.
user_needs_refresh = _signals.signal('needs-refresh')

#: Sent whenever the user is accessed/loaded
#: receives no additional arguments besides the app.
user_accessed = _signals.signal('accessed')

#: Sent whenever session protection takes effect, and a session is either
#: marked non-fresh or deleted. It receives no additional arguments besides
#: the app.
session_protected = _signals.signal('session-protected')