# -*- coding: utf-8 -*-
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.core.exceptions import PermissionDenied
from django.http import HttpResponseRedirect
from django.shortcuts import get_object_or_404
from django.urls import reverse
from django.utils.decorators import method_decorator
from django.views import generic

from dav_events.models import Participant
from dav_events.views.events import EventListView as _EventListView, EventRegistrationsView as _EventRegistrationsView
from dav_events.workflow import DefaultWorkflow


class HomeView(generic.TemplateView):
    template_name = 'dav_event_office/home.html'


class EventListView(_EventListView):
    template_name = 'dav_event_office/event_list.html'

    @method_decorator(login_required)
    def dispatch(self, request, *args, **kwargs):
        if not DefaultWorkflow.has_global_permission(request.user, 'payment'):
            raise PermissionDenied('payment')
        return super().dispatch(request, *args, **kwargs)


class EventDetailView(_EventRegistrationsView):
    template_name = 'dav_event_office/event_detail.html'

    @method_decorator(login_required)
    def dispatch(self, request, *args, **kwargs):
        if not DefaultWorkflow.has_global_permission(request.user, 'payment'):
            raise PermissionDenied('payment')
        return super().dispatch(request, *args, **kwargs)


class ParticipantListView(generic.ListView):
    model = Participant
    template_name = 'dav_event_office/participant_list.html'

    def post(self, request, *args, **kwargs):
        action = request.POST.get('action')
        if action == 'confirm_payment':
            participant_id = request.POST.get('id')
            participant = get_object_or_404(Participant, pk=participant_id)
            participant.paid = True
            participant.save()
        elif action == 'revoke_payment':
            participant_id = request.POST.get('id')
            participant = get_object_or_404(Participant, pk=participant_id)
            participant.paid = False
            participant.save()
        elif action == 'toggle_reduced_fee':
            participant_id = request.POST.get('id')
            participant = get_object_or_404(Participant, pk=participant_id)
            participant.apply_reduced_fee = not participant.apply_reduced_fee
            participant.save()
        else:
            messages.error(request, 'unsupported action: {}'.format(action))
        return HttpResponseRedirect(reverse('dav_event_office:participant-list'))

    @method_decorator(login_required)
    def dispatch(self, request, *args, **kwargs):
        if not DefaultWorkflow.has_global_permission(request.user, 'payment'):
            raise PermissionDenied('payment')
        return super().dispatch(request, *args, **kwargs)