"""
This module defines form classes for mailbox and mail address editing.

"""
from __future__ import absolute_import, unicode_literals

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

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

from .models import Mailbox
from gvawebcore.forms import PasswordModelFormMixin


class CreateMailboxForm(PasswordModelFormMixin, forms.ModelForm):
    """
    This form is used to create new Mailbox instances.

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

    def __init__(self, *args, **kwargs):
        self.hosting_package = kwargs.pop('hostingpackage')
        super(CreateMailboxForm, self).__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_action = reverse(
            'create_mailbox', kwargs={'package': self.hosting_package.id})
        self.helper.add_input(Submit('submit', _('Create mailbox')))

    def save(self, commit=True):
        """
        Set the new mailbox's password and osuser.

        :param boolean commit: whether to save the created mailbox
        :return: mailbox instance
        :rtype: :py:class:`managemails.models.Mailbox`

        """
        osuser = self.hosting_package.osuser
        self.instance.osuser = osuser
        self.instance.username = Mailbox.objects.get_next_mailbox_name(osuser)
        self.instance.set_password(self.cleaned_data['password1'])
        return super(CreateMailboxForm, self).save(commit=commit)


class ChangeMailboxPasswordForm(PasswordModelFormMixin, forms.ModelForm):
    """
    This form is used to set a new password for an existing mailbox.

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

    def __init__(self, *args, **kwargs):
        self.hosting_package = kwargs.pop('hostingpackage')
        super(ChangeMailboxPasswordForm, self).__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_action = reverse(
            'change_mailbox_password', kwargs={
                'package': self.hosting_package.id,
                'slug': self.instance.username,
            })
        self.helper.add_input(Submit('submit', _('Set password')))

    def save(self, commit=True):
        """
        Set the mailbox password.

        :param boolean commit: whether to save the mailbox instance
        :return: mailbox instance
        :rtype: :py:class:`managemails.models.Mailbox`

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