# coding: utf-8

from django.contrib.auth.decorators import login_required
from django import forms
from django.forms.models import inlineformset_factory, BaseInlineFormSet

from gestioncof.shared import render_page
from bda.models import Spectacle, Participant, ChoixSpectacle

class BaseBdaFormSet(BaseInlineFormSet):
    def clean(self):
        """Checks that no two articles have the same title."""
        if any(self.errors):
            # Don't bother validating the formset unless each form is valid on its own
            return
        spectacles = []
        for i in range(0, self.total_form_count()):
            form = self.forms[i]
            if not form.cleaned_data:
                continue
            spectacle = form.cleaned_data['spectacle']
            delete = form.cleaned_data['DELETE']
            if not delete and spectacle in spectacles:
                raise forms.ValidationError("Vous ne pouvez pas vous inscrire deux fois pour le même spectacle.")
            spectacles.append(spectacle)

@login_required
def inscription(request):
    BdaFormSet = inlineformset_factory(Participant, ChoixSpectacle, fields = ("spectacle","double","autoquit","priority",), formset = BaseBdaFormSet)
    participant, created = Participant.objects.get_or_create(user = request.user)
    success = False
    if request.method == "POST":
        formset = BdaFormSet(request.POST, instance = participant)
        if formset.is_valid():
            formset.save()
            success = True
            formset = BdaFormSet(instance = participant)
    else:
        formset = BdaFormSet(instance = participant)
    return render_page(request, {"formset": formset, "success": success}, "inscription-bda.html")