import random

from django import forms
from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _

from core.models import User
from core.views.forms import SelectDateTime
from core.views.widgets.select import AutoCompleteSelectUser
from subscription.models import Subscription


class SelectionDateForm(forms.Form):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields["start_date"] = forms.DateTimeField(
            label=_("Start date"), widget=SelectDateTime, required=True
        )
        self.fields["end_date"] = forms.DateTimeField(
            label=_("End date"), widget=SelectDateTime, required=True
        )


class SubscriptionNewUserForm(forms.Form):
    def clean(self):
        cleaned_data = super().clean()
        if (
            "last_name" not in self.errors.as_data()
            and "first_name" not in self.errors.as_data()
            and "email" not in self.errors.as_data()
            and "date_of_birth" not in self.errors.as_data()
        ):
            if self.errors:
                return cleaned_data
            if User.objects.filter(email=cleaned_data.get("email")).first() is not None:
                self.add_error(
                    "email",
                    ValidationError(_("A user with that email address already exists")),
                )
            else:
                u = User(
                    last_name=self.cleaned_data.get("last_name"),
                    first_name=self.cleaned_data.get("first_name"),
                    email=self.cleaned_data.get("email"),
                    date_of_birth=self.cleaned_data.get("date_of_birth"),
                )
                u.generate_username()
                u.set_password(str(random.randrange(1000000, 10000000)))
                u.save()
                cleaned_data["member"] = u


class SubscriptionForm(forms.ModelForm):
    """Form to add a subscription to an existing user."""

    template_name = "subscription/fragments/existing_user_form.html"

    class Meta:
        model = Subscription
        fields = ["member", "subscription_type", "payment_method", "location"]
        widgets = {"member": AutoCompleteSelectUser}

    def clean_subscription_type(self):
        raise ValidationError("ptdr non")