# Copyright (c) 2016 Catalyst IT Ltd.
#
# 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.conf import settings
from django import forms
from django import http
from django.utils.translation import ugettext_lazy as _

from horizon import forms as hforms
from horizon.utils import functions as utils

from stacktask_ui.api import stacktask

# Username is ignored, use email address instead.
USERNAME_IS_EMAIL = True


class ForgotPasswordForm(hforms.SelfHandlingForm):
    email = forms.EmailField(
        label=_("Email"),
        widget=forms.TextInput(attrs={"autofocus": "autofocus"})
    )

    def clean(self, *args, **kwargs):
        # validate username and email?
        return super(ForgotPasswordForm, self).clean(*args, **kwargs)

    def handle(self, *args, **kwargs):
        email = self.cleaned_data['email']

        try:
            submit_response = stacktask.forgotpassword_submit(self.request,
                                                              email)
            if submit_response.ok:
                return True
        except Exception:
            pass

        # Send the user back to the login page.
        msg = _("The password reset service is currently unavailable. "
                "Please try again later.")
        response = http.HttpResponseRedirect(settings.LOGOUT_URL)
        utils.add_logout_reason(self.request, response, msg)
        return response