# SPDX-License-Identifier: AGPL-3.0-or-later
"""FreedomBox app for power controls."""

from django.forms import Form
from django.shortcuts import redirect
from django.template.response import TemplateResponse
from django.urls import reverse

from plinth import app as app_module
from plinth import package
from plinth.views import AppView

from . import privileged


class PowerAppView(AppView):
    """Show power app main page."""

    app_id = 'power'
    template_name = 'power.html'

    def get_context_data(self, *args, **kwargs):
        """Add additional context data for template."""
        context = super().get_context_data(*args, **kwargs)
        is_busy = package.is_package_manager_busy()
        context['pkg_manager_is_busy'] = is_busy
        return context


def restart(request):
    """Serve start confirmation page."""
    form = None

    if request.method == 'POST':
        privileged.restart(_run_in_background=True)
        return redirect(reverse('apps'))

    app = app_module.App.get('power')
    form = Form(prefix='power')
    is_busy = package.is_package_manager_busy()
    return TemplateResponse(
        request, 'power_restart.html', {
            'title': app.info.name,
            'form': form,
            'manual_page': app.info.manual_page,
            'pkg_manager_is_busy': is_busy
        })


def shutdown(request):
    """Serve shutdown confirmation page."""
    form = None

    if request.method == 'POST':
        privileged.shutdown(_run_in_background=True)
        return redirect(reverse('apps'))

    app = app_module.App.get('power')
    form = Form(prefix='power')
    is_busy = package.is_package_manager_busy()
    return TemplateResponse(
        request, 'power_shutdown.html', {
            'title': app.info.name,
            'form': form,
            'manual_page': app.info.manual_page,
            'pkg_manager_is_busy': is_busy
        })