from django import forms
from django.utils.translation import gettext_lazy as _

from pingcap_sso.validators.phone import (
    PhoneNumberValidator,
    normalize_phone_number,
)


class PhoneField(forms.CharField):
    default_validators = (PhoneNumberValidator(),)
    default_error_messages = {
        'invalid': _('invalid phone number'),
        'required': _('phone number is required'),
    }

    def to_python(self, value):
        value = super(PhoneField, self).to_python(value)
        if value in self.empty_values:
            return value
        return normalize_phone_number(value)


class PhoneForm(forms.Form):
    phone = PhoneField(required=True)