# Create your views here.
from django.contrib import admin
from django.contrib.auth import authenticate, login
from django.http import HttpResponseRedirect, HttpResponse
from django.shortcuts import render_to_response

from django.views.decorators.csrf import csrf_exempt
import datetime


def verificar_parametro(request, parametro):
	if parametro in request.REQUEST:
		var = True
	else:
		var = False
	return var

@csrf_exempt
def validar(request):
	now = datetime.datetime.now()

	if not verificar_parametro(request, 'redirect_uri' ):
		return render_to_response('error.html',{'current_date':now, 'mensaje' : 'no se proporciono url'}, context_instance = RequestContext(request))	

	if not verificar_parametro(request, 'consumer_key' ):
		return render_to_response('error.html',{'current_date':now, 'mensaje' : 'no se proporciono consumer key'}, context_instance = RequestContext(request))	

	


	if 'redirect_uri' not in request.POST:
		return HttpResponseRedirect( '/error', {'mensaje':'No se proporciono uri', 'url':request.path } )
	else:
		redirect_uri = request.POST['redirect_uri']		

	# if 'consumer_key' not in request.POST:
	# 	return HttpResponseRedirect( '/error/redirect_uri=%s' % (redirect_uri), {'mensaje':'No reconoce proporciono identificador', 'url':redirect_uri } )


	username = request.POST['username']
	password = request.POST['password']
	user = authenticate(username=username, password=password)
	mensaje = ''
	if user is not None:
		if user.is_active:
			login(request, user )
			mensaje += str(user)
			
			contenido = ''
			contenido += 'usuario:	' + str(request.user) + '<br>'
			contenido += 'nombre:	' + request.user.first_name + '<br>'
			contenido += 'apellido:	' + request.user.last_name + '<br>'
			contenido += 'autenticado:	' + str(request.user.is_authenticated()) + '<br>'

			request.session['user'] = request.user

			contenido = request.session['user']
			
			# return HttpResponse(contenido)
			# return HttpResponse ( dependencia.objects.filter(usuarios__in=[user.id]).count() )
			# return HttpResponse( redirect_uri, {'user':user, 'mensaje':mensaje} )
		else:
			mensaje = mensaje + 'cuenta desactivada'
	else:
		mensaje = mensaje + 'Usuario no valido, verifique sus credenciales'

	# return HttpResponse(redirect_uri)
	return HttpResponseRedirect( redirect_uri )


def error(request):
	

	# return HttpResponse ( str(request) )
	from django.template.loader import get_template
	from django.template import Context
	
	
	now = datetime.datetime.now()
	t = get_template('error.html')
	html = t.render(Context({'current_date': now}))
	html += t.render(Context({'redirect_uri': 'asdf' }))

	return render_to_response('error.html',{'current_date':now, 'redirect_uri' : request.redirect_uri}, context_instance = RequestContext(request))