from django import forms
from django.urls import reverse
from django.utils.translation import pgettext_lazy

from pretix.base.models.checkin import CheckinList
from pretix.control.forms.widgets import Select2


class CheckinListForm(forms.ModelForm):
    def __init__(self, **kwargs):
        self.event = kwargs.pop('event')
        kwargs.pop('locales', None)
        super().__init__(**kwargs)
        self.fields['limit_products'].queryset = self.event.items.all()
        if self.event.has_subevents:
            self.fields['subevent'].queryset = self.event.subevents.all()
            self.fields['subevent'].widget = Select2(
                attrs={
                    'data-model-select2': 'event',
                    'data-select2-url': reverse('control:event.subevents.select2', kwargs={
                        'event': self.event.slug,
                        'organizer': self.event.organizer.slug,
                    }),
                    'data-placeholder': pgettext_lazy('subevent', 'Date')
                }
            )
            self.fields['subevent'].widget.choices = self.fields['subevent'].choices
            self.fields['subevent'].required = True
        else:
            del self.fields['subevent']

    class Meta:
        model = CheckinList
        localized_fields = '__all__'
        fields = [
            'name',
            'all_products',
            'limit_products',
            'subevent',
            'include_pending'
        ]
        widgets = {
            'limit_products': forms.CheckboxSelectMultiple(attrs={
                'data-inverse-dependency': '<[name$=all_products]'
            }),
        }