from django.http import HttpResponse, HttpResponseRedirect, Http404
from django.shortcuts import render_to_response

from django.template import RequestContext
from django.contrib import auth

def index(request):
	return render_to_response('index.html', {}, context_instance = RequestContext(request))

def login(request):
	if request.method == "POST":
		post = request.POST.copy()
		if post.has_key('username') and post.has_key('password'):
			usr = post['username']
			pwd = post['password']
			user = auth.authenticate(username=usr, password=pwd)
			if user is not None and user.is_active:
				auth.login(request, user)
				if user.get_profile().is_teacher:
					return HttpResponseRedirect('/teachers/'+user.username+'/')
				else:
					return HttpResponseRedirect('/students/'+user.username+'/')
			else:
				return render_to_response('index.html', {'msg': 'You don't belong here.'}, context_instance = RequestContext(request))

	return render_to_response('login.html', {}, context_instance = RequestContext(request))

def logout(request):
	auth.logout(request)

	return render_to_response('index.html', {}, context_instance = RequestContext(request))