# 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 django.contrib.auth.decorators import login_required


from eventplanner.models import Event, EventParticipation
from musicians.models import Musician

from datetime import datetime

@login_required
def home_view(request):
    context = dict()

    events = Event.objects.filter( date__gte = datetime.now() ).order_by('date')[:1]
    if ( len(events) > 0 ):
        print "len(events): " +  str( len(events ))
        nextEvent = events[0]
        part = EventParticipation.objects.filter( musician__user = request.user ).filter( event = nextEvent )

        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
    else:
        context['hasParticipationSetForAllEvents'] = True
    
    
    
    nextConcerts = Event.objects.filter( date__gte = datetime.now(), type = 'Conc' ).order_by('date')[:1] 
    if len( nextConcerts) > 0 : 
        nextConcert = nextConcerts[0]
        
        routeInfo = dict()
        
        user = Musician.objects.get( user = request.user );
        routeInfo['origin'] = user.street + ", " + str( user.zip_code ) + " " + user.city
        
        if nextConcert.map_location:
            # map_location has format "lat,longitute,zoomlevel"
            routeInfo['destination'] = ",".join( nextConcert.map_location.split(",")[:2] )
        else:
            routeInfo['destination'] = nextConcert.location
    
        context['routeInfo'] = routeInfo
        context['nextConcert'] = nextConcert
        context['hasNextConcertInfo'] = True
    else:
        context['hasNextConcertInfo'] = False
        
    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'] = ""
        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'] = "/"
                print ( "Setting Redirect" )
                if 'next' in request.POST :
                    result['redirect'] = request.POST["next"]
                    print ( "Using " + request.POST["next"] )
            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:
        # Check if user already logged in
        if request.user.is_authenticated():
            return redirect( "/")
            
        if 'next' in request.GET:
            nextPage = request.GET['next']
        else:
            nextPage = "/"
        return render( request, 'website/login.html', { 'next' : nextPage } )