# Create your views here.

from django.shortcuts import render, redirect
from django.contrib.auth import authenticate, login, logout

from django.core.urlresolvers import reverse
from django.http import HttpResponse

from django.utils import simplejson


from eventplanner.models import Event, EventParticipation

from datetime import datetime

def home_view(request):
    events = Event.objects.filter( date__gte = datetime.now() ).order_by('date')[:1]
    context = dict()
    
    
    part = EventParticipation.objects.filter( musician__user = request.user ).filter( event = events[0] )
    
    eventTime = datetime( events[0].date.year, events[0].date.month, events[0].date.day, 
                          events[0].displaytime.hour, events[0].displaytime.minute )
    
    context['hasParticipationSetForAllEvents'] = EventParticipation.hasUserSetParticipationForAllEvents( request.user)
    context['event'] = events[0]
    context['epoch'] = int(  (eventTime - datetime.now() ).total_seconds() * 1000 )
    context['participation'] = part[0].status
    return render( request, 'website/mainpage.html', context )


def logout_view(request):
    logout( request )
    return redirect( login_view )


def login_view(request):
    if request.method == 'POST': # If the form has been submitted...
        username = request.POST['username']
        password = request.POST['password']
        user = authenticate(username=username, password=password)
        result = dict()
        result['err']      = ""
        result['redirect'] = ""
        if user is not None:
            if user.is_active:
                if not request.POST.get('remember', None):
                    request.session.set_expiry( 0 )
                login(request, user)
                result['redirect'] = reverse( home_view )
            else:
                result['err'] = "Dein Account wurde deaktiviert."
                # Return a 'disabled account' error message
        else:
            result['err'] = "Falscher Benutzername oder falsches Kennwort."
            
        return HttpResponse( simplejson.dumps(result), mimetype='application/json' )
    
    else:
        # TODO check if already logged in --------------------!!!!
        return render( request, 'website/login.html' )