''' the good people stuff! the authors! '''
from django.contrib.auth.decorators import login_required, permission_required
from django.db.models import Q
from django.shortcuts import get_object_or_404, redirect
from django.template.response import TemplateResponse
from django.utils.decorators import method_decorator
from django.views import View

from bookwyrm import forms, models
from bookwyrm.activitypub import ActivitypubResponse
from bookwyrm.broadcast import broadcast
from .helpers import is_api_request


# pylint: disable= no-self-use
class Author(View):
    ''' this person wrote a book '''
    def get(self, request, author_id):
        ''' landing page for an author '''
        author = get_object_or_404(models.Author, id=author_id)

        if is_api_request(request):
            return ActivitypubResponse(author.to_activity())

        books = models.Work.objects.filter(
            Q(authors=author) | Q(editions__authors=author)).distinct()
        data = {
            'title': author.name,
            'author': author,
            'books': [b.get_default_edition() for b in books],
        }
        return TemplateResponse(request, 'author.html', data)


@method_decorator(login_required, name='dispatch')
@method_decorator(
    permission_required('bookwyrm.edit_book', raise_exception=True),
    name='dispatch')
class EditAuthor(View):
    ''' edit author info '''
    def get(self, request, author_id):
        ''' info about a book '''
        author = get_object_or_404(models.Author, id=author_id)
        data = {
            'title': 'Edit Author',
            'author': author,
            'form': forms.AuthorForm(instance=author)
        }
        return TemplateResponse(request, 'edit_author.html', data)

    def post(self, request, author_id):
        ''' edit a author cool '''
        author = get_object_or_404(models.Author, id=author_id)

        form = forms.AuthorForm(request.POST, request.FILES, instance=author)
        if not form.is_valid():
            data = {
                'title': 'Edit Author',
                'author': author,
                'form': form
            }
            return TemplateResponse(request, 'edit_author.html', data)
        author = form.save()

        broadcast(request.user, author.to_update_activity(request.user))
        return redirect('/author/%s' % author.id)