"""passbook User administration"""
from django.contrib import messages
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.auth.mixins import \
    PermissionRequiredMixin as DjangoPermissionRequiredMixin
from django.contrib.messages.views import SuccessMessageMixin
from django.shortcuts import redirect
from django.urls import reverse, reverse_lazy
from django.utils.translation import ugettext as _
from django.views.generic import DeleteView, DetailView, ListView, UpdateView
from guardian.mixins import PermissionListMixin, PermissionRequiredMixin

from passbook.admin.forms.users import UserForm
from passbook.core.models import Nonce, User
from passbook.lib.views import CreateAssignPermView


class UserListView(LoginRequiredMixin, PermissionListMixin, ListView):
    """Show list of all users"""

    model = User
    permission_required = 'passbook_core.view_user'
    ordering = 'username'
    paginate_by = 40
    template_name = 'administration/user/list.html'


class UserCreateView(SuccessMessageMixin, LoginRequiredMixin,
                     DjangoPermissionRequiredMixin, CreateAssignPermView):
    """Create user"""

    model = User
    form_class = UserForm
    permission_required = 'passbook_core.add_user'
    permissions = [
        'passbook_core.view_user',
        'passbook_core.change_user',
        'passbook_core.delete_user',
    ]

    template_name = 'generic/create.html'
    success_url = reverse_lazy('passbook_admin:users')
    success_message = _('Successfully created User')


class UserUpdateView(SuccessMessageMixin, LoginRequiredMixin,
                     PermissionRequiredMixin, UpdateView):
    """Update user"""

    model = User
    form_class = UserForm
    permission_required = 'passbook_core.change_user'

    context_object_name = 'object' # By default the object's name
                                   # is user which is used by other checks
    template_name = 'generic/update.html'
    success_url = reverse_lazy('passbook_admin:users')
    success_message = _('Successfully updated User')


class UserDeleteView(SuccessMessageMixin, LoginRequiredMixin,
                     PermissionRequiredMixin, DeleteView):
    """Delete user"""

    model = User
    permission_required = 'passbook_core.delete_user'

    template_name = 'generic/delete.html'
    success_url = reverse_lazy('passbook_admin:users')
    success_message = _('Successfully deleted User')

    def delete(self, request, *args, **kwargs):
        messages.success(self.request, self.success_message)
        return super().delete(request, *args, **kwargs)


class UserPasswordResetView(LoginRequiredMixin, PermissionRequiredMixin, DetailView):
    """Get Password reset link for user"""

    model = User
    permission_required = 'passbook_core.reset_user_password'

    def get(self, request, *args, **kwargs):
        """Create nonce for user and return link"""
        super().get(request, *args, **kwargs)
        nonce = Nonce.objects.create(user=self.object)
        link = request.build_absolute_uri(reverse(
            'passbook_core:auth-password-reset', kwargs={'nonce': nonce.uuid}))
        messages.success(request, _('Password reset link: <pre>%(link)s</pre>' % {'link': link}))
        return redirect('passbook_admin:users')