''' manage site settings '''
from django.contrib.auth.decorators import login_required, permission_required
from django.shortcuts import redirect
from django.template.response import TemplateResponse
from django.utils.decorators import method_decorator
from django.views import View

from bookwyrm import forms, models


# pylint: disable= no-self-use
@method_decorator(login_required, name='dispatch')
@method_decorator(
    permission_required(
        'bookwyrm.edit_instance_settings', raise_exception=True),
    name='dispatch')
class Site(View):
    ''' manage things like the instance name '''
    def get(self, request):
        ''' edit form '''
        site = models.SiteSettings.objects.get()
        data = {'site_form': forms.SiteForm(instance=site)}
        return TemplateResponse(request, 'settings/site.html', data)

    def post(self, request):
        ''' edit the site settings '''
        site = models.SiteSettings.objects.get()
        form = forms.SiteForm(request.POST, instance=site)
        if not form.is_valid():
            data = {'site_form': form}
            return TemplateResponse(request, 'settings/site.html', data)
        form.save()

        return redirect('settings-site')