from django import forms
from django.urls import reverse
from django.utils.translation import pgettext_lazy
from django_scopes.forms import (
    SafeModelChoiceField, SafeModelMultipleChoiceField,
)

from pretix.base.channels import get_all_sales_channels
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()
        self.fields['auto_checkin_sales_channels'] = forms.MultipleChoiceField(
            label=self.fields['auto_checkin_sales_channels'].label,
            help_text=self.fields['auto_checkin_sales_channels'].help_text,
            required=self.fields['auto_checkin_sales_channels'].required,
            choices=(
                (c.identifier, c.verbose_name) for c in get_all_sales_channels().values()
            ),
            widget=forms.CheckboxSelectMultiple
        )

        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', 'All dates')
                }
            )
            self.fields['subevent'].widget.choices = self.fields['subevent'].choices
        else:
            del self.fields['subevent']

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


class SimpleCheckinListForm(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()

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