from django.utils.translation import ugettext_lazy as _

from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.shortcuts import render, redirect, get_object_or_404

from events.models.profiles import Team, UserProfile
from events.models.events import Event, EventSeries, Attendee
from events.forms import NewEventForm, NewPlaceForm, NewEventDetailsForm
from events import location

import simple_ga as ga

@login_required
def new_event_start(request):
    team = request.user.profile.personal_team

    new_event = Event(team=team, created_by=request.user.profile)

    if request.method == 'GET':
        form = NewEventForm(instance=new_event)

        context = {
            'event': new_event,
            'team': team,
            'event_form': form,
        }
        return render(request, 'get_together/new_event/create_event.html', context)
    elif request.method == 'POST':
        form = NewEventForm(request.POST, instance=new_event)
        if form.is_valid:
            new_event = form.save()
            Attendee.objects.create(event=new_event, user=request.user.profile, role=Attendee.HOST, status=Attendee.YES)

            messages.add_message(request, messages.SUCCESS, message=_('Your event has been scheduled! Next, find a place for your event.'))
            ga.add_event(request, action='new_event', category='activity', label=new_event.get_full_url())

            return redirect('new-event-add-place', new_event.id)
        else:
            context = {
                'event': new_event,
                'team': team,
                'event_form': form,
            }
            return render(request, 'get_together/new_event/create_event.html', context)
    else:
        return redirect('home')

@login_required
def new_event_add_place(request, event_id):
    event = get_object_or_404(Event, id=event_id)
    if not request.user.profile.can_edit_event(event):
        messages.add_message(request, messages.WARNING, message=_('You can not make changes to this event.'))
        return redirect(event.get_absolute_url())

    if request.method == 'GET':
        form = NewPlaceForm()

        context = {
            'event': event,
            'place_form': form,
        }
        return render(request, 'get_together/new_event/add_place.html', context)
    elif request.method == 'POST':
        form = NewPlaceForm(request.POST)
        if form.is_valid:
            if request.POST.get('id', None):
                form.instance.id = request.POST.get('id')
            new_place = form.save()
            event.place = new_place
            event.save()
            if event.series is not None and event.series.place is None:
                event.series.place = new_place;
                event.series.save()
            return redirect('new-event-add-details', event.id)
        else:
            context = {
                'event': event,
                'place_form': form,
            }
            return render(request, 'get_together/new_event/add_place.html', context)
    else:
     return redirect('home')


@login_required
def new_event_add_details(request, event_id):
    event = get_object_or_404(Event, id=event_id)
    if not request.user.profile.can_edit_event(event):
        messages.add_message(request, messages.WARNING, message=_('You can not make changes to this event.'))
        return redirect(event.get_absolute_url())

    if request.method == 'GET':
        form = NewEventDetailsForm(instance=event)

        context = {
            'event': event,
            'team': event.team,
            'event_form': form,
        }
        return render(request, 'get_together/new_event/detail_event.html', context)
    elif request.method == 'POST':
        form = NewEventDetailsForm(request.POST, instance=event)
        if form.is_valid:
            new_event = form.save()

            if form.cleaned_data.get('recurrences', None):
                new_series = EventSeries.from_event(new_event, recurrences=form.cleaned_data['recurrences'])
                new_series.save()
                new_event.series = new_series
                new_event.save()

            return redirect('new-event-add-team', new_event.id)
        else:
            context = {
                'event': event,
                'team': event.team,
                'event_form': form,
            }
            return render(request, 'get_together/new_event/detail_event.html', context)
    else:
        return redirect('home')


@login_required
def new_event_add_team(request, event_id):
    teams = request.user.profile.moderating
    event = get_object_or_404(Event, id=event_id)
    if not request.user.profile.can_edit_event(event):
        messages.add_message(request, messages.WARNING, message=_('You can not make changes to this event.'))
        return redirect(event.get_absolute_url())

    context = {
        'event': event,
        'teams': teams,
    }
    if request.method == 'GET':
        return render(request, 'get_together/new_event/pick_team.html', context)
    elif request.method == 'POST':
        if 'team_id' in request.POST:
            team = Team.objects.get(id=request.POST.get('team_id'))
            event.team = team
            event.save()
            messages.add_message(request, messages.SUCCESS, message=_('Your event is ready! Now you can start inviting people to join you'))
            return redirect(event.get_absolute_url())
        else:
            return render(request, 'get_together/new_event/pick_team.html', context)
    else:
        return redirect('home')