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# SPDX-License-Identifier: AGPL-3.0-or-later
"""FreedomBox app for configuring date and time."""
import logging
import subprocess
from django.contrib import messages
from django.utils.translation import gettext as _
from plinth.views import AppView
from . import privileged
from .forms import DateTimeForm
logger = logging.getLogger(__name__)
class DateTimeAppView(AppView):
"""Serve configuration page."""
form_class = DateTimeForm
app_id = 'datetime'
def get_initial(self):
"""Return the values to fill in the form."""
status = super().get_initial()
status['time_zone'] = self.get_current_time_zone() or 'none'
return status
@staticmethod
def get_current_time_zone():
"""Get current time zone."""
try:
process = subprocess.run(
['timedatectl', 'show', '--property', 'Timezone', '--value'],
stdout=subprocess.PIPE, check=True)
return process.stdout.decode().strip()
except subprocess.CalledProcessError:
return None
def form_valid(self, form):
"""Change the timezone."""
old_status = form.initial
new_status = form.cleaned_data
if old_status['time_zone'] != new_status['time_zone'] and \
new_status['time_zone'] != 'none':
try:
privileged.set_timezone(new_status['time_zone'])
except Exception as exception:
messages.error(
self.request,
_('Error setting time zone: {exception}').format(
exception=exception))
else:
messages.success(self.request, _('Time zone set'))
return super().form_valid(form)
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