"""
This module defines operating system user related forms.

"""
from __future__ import unicode_literals

from django import forms
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _

from crispy_forms.helper import FormHelper
from crispy_forms.layout import Submit

from gvawebcore.forms import PasswordModelFormMixin

from .models import User


class ChangeOsUserPasswordForm(PasswordModelFormMixin, forms.ModelForm):
    """
    A form for setting an OS user's password.

    """
    class Meta:
        model = User
        fields = []

    def __init__(self, *args, **kwargs):
        self.helper = FormHelper()
        super(ChangeOsUserPasswordForm, self).__init__(*args, **kwargs)
        self.helper.form_action = reverse(
            'set_osuser_password', kwargs={'slug': self.instance.username})
        self.helper.add_input(Submit('submit', _('Set password')))

    def save(self, commit=True):
        """
        Save the provided password in hashed format.

        :param boolean commit: whether to save the created user
        :return: user instance
        :rtype: :py:class:`osusers.models.User`

        """
        self.instance.set_password(self.cleaned_data['password1'])
        return super(ChangeOsUserPasswordForm, self).save(commit=commit)