from django.shortcuts import render, redirect
from django.core.urlresolvers import reverse
from django.contrib.auth import authenticate, login, logout
from django.contrib import messages
from .models import Topic

def index(request):
    return render(request, 'forum/index.html')

def all(request):
    topics = Topic.objects.all()
    return render(request, 'forum/all.html', { 'topics': topics } )


def forum_login(request):
    username = request.POST[  'username']
    password = request.POST['password']
    user = authenticate(username=username, password=password)
    if user is not None:
        if user.is_active:
            login(request, user)
            return redirect(request.GET["next"])
        else:
            messages.error(request, 'You are banned')
            return redirect(request.GET["next"])
    else:
        messages.error(request, 'Login failed')
        return redirect(request.GET["next"])

def forum_logout(request):
    logout(request)
    return redirect(reverse('forum-index'))

def delete_topic(request, pk):
    Topic.objects.filter(pk=pk).delete()
    return redirect(request.GET["next"])