# Copyright (c) 2014 NetApp, Inc.
# All rights reserved.

# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

from django.forms import ValidationError
from django.urls import reverse
from django.utils.translation import ugettext_lazy as _
from django.views.decorators.debug import sensitive_variables
from horizon import exceptions
from horizon import forms
from horizon import messages

from manila_ui.api import manila


class Create(forms.SelfHandlingForm):
    name = forms.CharField(max_length="255", label=_("Name"))
    dns_ip = forms.CharField(max_length="15", label=_("DNS IP"))
    ou = forms.CharField(
        max_length="255",
        label=_("Organizational Unit"),
        required=False)
    server = forms.CharField(max_length="255", label=_("Server"))
    domain = forms.CharField(max_length="255", label=_("Domain"))
    user = forms.CharField(max_length="255", label=_("User"), required=False)
    password = forms.CharField(
        label=_("Password"),
        widget=forms.PasswordInput(render_value=False),
        required=False)
    confirm_password = forms.CharField(
        label=_("Confirm Password"),
        widget=forms.PasswordInput(render_value=False),
        required=False)
    type = forms.ChoiceField(choices=(("", ""),
                                      ("active_directory", "Active Directory"),
                                      ("ldap", "LDAP"),
                                      ("kerberos", "Kerberos")),
                             label=_("Type"))
    description = forms.CharField(widget=forms.Textarea,
                                  label=_("Description"), required=False)

    def clean(self):
        '''Check to make sure password fields match.'''
        data = super(forms.Form, self).clean()
        if 'password' in data:
            if data['password'] != data.get('confirm_password', None):
                raise ValidationError(_('Passwords do not match.'))
        return data

    @sensitive_variables('data')
    def handle(self, request, data):
        try:
            data.pop('confirm_password')
            security_service = manila.security_service_create(
                request, **data)
            messages.success(request, _('Successfully created security '
                                        'service: %s') % data['name'])
            return security_service
        except Exception:
            exceptions.handle(request,
                              _('Unable to create security service.'))
            return False


class Update(forms.SelfHandlingForm):
    name = forms.CharField(max_length="255", label=_("Share Name"))
    dns_ip = forms.CharField(
        max_length="15", label=_("DNS IP"), required=False)
    ou = forms.CharField(
        max_length="255",
        label=_("Organizational Unit"),
        required=False)
    server = forms.CharField(
        max_length="255", label=_("Server"), required=False)
    domain = forms.CharField(
        max_length="255", label=_("Domain"), required=False)
    user = forms.CharField(
        max_length="255", label=_("User"), required=False)
    password = forms.CharField(
        label=_("Password"),
        widget=forms.PasswordInput(render_value=False),
        required=False)
    confirm_password = forms.CharField(
        label=_("Confirm Password"),
        widget=forms.PasswordInput(render_value=False),
        required=False)
    description = forms.CharField(
        widget=forms.Textarea, label=_("Description"), required=False)

    def clean(self):
        '''Check to make sure password fields match.'''
        cleaned_data = super(forms.Form, self).clean()
        password = self.cleaned_data.get('password')
        confirm_password = self.cleaned_data.get('confirm_password')
        if password != confirm_password:
            raise ValidationError(_('Passwords do not match.'))
        return cleaned_data

    @sensitive_variables('data')
    def handle(self, request, data):
        sec_service_id = self.initial['sec_service_id']
        try:
            manila.security_service_update(
                request, sec_service_id,
                dns_ip=data['dns_ip'],
                ou=data['ou'],
                server=data['server'],
                domain=data['domain'],
                password=data.get('password') or None,
                user=data['user'],
                name=data['name'],
                description=data['description'])

            message = _('Successfully updated security service '
                        '"%s"') % data['name']
            messages.success(request, message)
            return True
        except Exception:
            redirect = reverse("horizon:project:security_services:index")
            exceptions.handle(request,
                              _('Unable to update security service.'),
                              redirect=redirect)
