from django.contrib.auth.mixins import LoginRequiredMixin
from django.http import HttpResponseRedirect
from django.shortcuts import render
from django.urls import reverse_lazy
from django.views.generic.base import RedirectView, TemplateView
from django.views.generic.edit import FormView

from . import api, get_version
from .auth import login as auth_login, logout as auth_logout
from .forms import LoginForm
from .mixins import CustomContextMixin


class DashboardView(CustomContextMixin, TemplateView):  ## TODO LoginRequiredMixin
    template_name = "musician/dashboard.html"


class LoginView(FormView):
    template_name = 'auth/login.html'
    form_class = LoginForm
    success_url = reverse_lazy('musician:dashboard')
    extra_context = {'version': get_version()}

    def get_form_kwargs(self):
        kwargs = super().get_form_kwargs()
        kwargs['request'] = self.request
        return kwargs

    def form_valid(self, form):
        """Security check complete. Log the user in."""
        auth_login(self.request, form.username, form.token)
        return HttpResponseRedirect(self.get_success_url())


class LogoutView(RedirectView):
    """
    Log out the user.
    """
    permanent = False
    pattern_name = 'musician:login'

    def get_redirect_url(self, *args, **kwargs):
        """
        Logs out the user.
        """
        auth_logout(self.request)
        return super().get_redirect_url(*args, **kwargs)

    def post(self, request, *args, **kwargs):
        """Logout may be done via POST."""
        return self.get(request, *args, **kwargs)