from django.conf.urls import include, url
from django.contrib import admin
from django.contrib.auth import views
from django.contrib.auth.decorators import login_required
from django.contrib.auth.forms import AuthenticationForm
from django.contrib.auth.urls import urlpatterns
from django.contrib.messages.api import info
from django.http import HttpRequest, HttpResponse
from django.shortcuts import render
from django.template import RequestContext, Template
from django.views.decorators.cache import never_cache


class CustomRequestAuthenticationForm(AuthenticationForm):
    def __init__(self, request, *args, **kwargs):
        assert isinstance(request, HttpRequest)
        super(CustomRequestAuthenticationForm, self).__init__(request, *args, **kwargs)


@never_cache
def remote_user_auth_view(request):
    "Dummy view for remote user tests"
    t = Template("Username is {{ user }}.")
    c = RequestContext(request, {})
    return HttpResponse(t.render(c))


def auth_processor_no_attr_access(request):
    render(request, 'context_processors/auth_attrs_no_access.html')
    # *After* rendering, we check whether the session was accessed
    return render(request,
                  'context_processors/auth_attrs_test_access.html',
                  {'session_accessed': request.session.accessed})


def auth_processor_attr_access(request):
    render(request, 'context_processors/auth_attrs_access.html')
    return render(request,
                  'context_processors/auth_attrs_test_access.html',
                  {'session_accessed': request.session.accessed})


def auth_processor_user(request):
    return render(request, 'context_processors/auth_attrs_user.html')


def auth_processor_perms(request):
    return render(request, 'context_processors/auth_attrs_perms.html')


def auth_processor_perm_in_perms(request):
    return render(request, 'context_processors/auth_attrs_perm_in_perms.html')


def auth_processor_messages(request):
    info(request, "Message 1")
    return render(request, 'context_processors/auth_attrs_messages.html')


def userpage(request):
    pass


def custom_request_auth_login(request):
    return views.login(request, authentication_form=CustomRequestAuthenticationForm)

# special urls for auth test cases
urlpatterns += [
    url(r'^logout/custom_query/$', views.logout, dict(redirect_field_name='follow')),
    url(r'^logout/next_page/$', views.logout, dict(next_page='/somewhere/')),
    url(r'^logout/next_page/named/$', views.logout, dict(next_page='password_reset')),
    url(r'^remote_user/$', remote_user_auth_view),
    url(r'^password_reset_from_email/$', views.password_reset, dict(from_email='staffmember@example.com')),
    url(r'^password_reset/custom_redirect/$', views.password_reset, dict(post_reset_redirect='/custom/')),
    url(r'^password_reset/custom_redirect/named/$', views.password_reset, dict(post_reset_redirect='password_reset')),
    url(r'^password_reset/html_email_template/$', views.password_reset,
        dict(html_email_template_name='registration/html_password_reset_email.html')),
    url(r'^reset/custom/(?P<uidb64>[0-9A-Za-z_\-]+)/(?P<token>[0-9A-Za-z]{1,13}-[0-9A-Za-z]{1,20})/$',
        views.password_reset_confirm,
        dict(post_reset_redirect='/custom/')),
    url(r'^reset/custom/named/(?P<uidb64>[0-9A-Za-z_\-]+)/(?P<token>[0-9A-Za-z]{1,13}-[0-9A-Za-z]{1,20})/$',
        views.password_reset_confirm,
        dict(post_reset_redirect='password_reset')),
    url(r'^password_change/custom/$', views.password_change, dict(post_change_redirect='/custom/')),
    url(r'^password_change/custom/named/$', views.password_change, dict(post_change_redirect='password_reset')),
    url(r'^admin_password_reset/$', views.password_reset, dict(is_admin_site=True)),
    url(r'^login_required/$', login_required(views.password_reset)),
    url(r'^login_required_login_url/$', login_required(views.password_reset, login_url='/somewhere/')),

    url(r'^auth_processor_no_attr_access/$', auth_processor_no_attr_access),
    url(r'^auth_processor_attr_access/$', auth_processor_attr_access),
    url(r'^auth_processor_user/$', auth_processor_user),
    url(r'^auth_processor_perms/$', auth_processor_perms),
    url(r'^auth_processor_perm_in_perms/$', auth_processor_perm_in_perms),
    url(r'^auth_processor_messages/$', auth_processor_messages),
    url(r'^custom_request_auth_login/$', custom_request_auth_login),
    url(r'^userpage/(.+)/$', userpage, name="userpage"),

    # This line is only required to render the password reset with is_admin=True
    url(r'^admin/', include(admin.site.urls)),
]