from django.views.generic import View
from django.template import RequestContext
from django.shortcuts import render_to_response
from django.contrib.auth import logout
from django.utils.translation import ugettext_lazy as _
from django.http import HttpResponseRedirect
from django.contrib import messages
from django.contrib.auth import login

from .forms import LoginForm


class LoginView(View):
    template = 'users/login.html'

    def get(self, request):
        context = {
            'login_form': LoginForm()
        }

        ctx = RequestContext(request, context)
        return render_to_response(self.template, context_instance=ctx)

    def post(self, request):
        login_form = LoginForm(request.POST)

        if login_form.is_valid():
            user = login_form.authenticate()
            login(request, user)

            messages.success(
                request,
                _('Logged in successfully.')
            )

            return HttpResponseRedirect('/')

        context = {
            'login_form': login_form,
        }

        ctx = RequestContext(request, context)
        return render_to_response(self.template, context_instance=ctx)


class LogoutView(View):
    def get(self, request):
        logout(request)

        messages.success(
            request,
            _('Logged out successfully')
        )

        return HttpResponseRedirect('/')