# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2017-2019 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later

from django.contrib import messages
from django.contrib.auth.decorators import login_required, permission_required
from django.db import transaction
from django.shortcuts import redirect, render
from django.utils import timezone
from django.utils.translation import gettext_lazy as _
from rest_framework import viewsets
from reversion import revisions as reversion

from .models import Auteur, BD, Emprunt, Jeu
from .serializers import AuteurSerializer, EmpruntSerializer, \
    JeuSerializer, MediaSerializer


@login_required
@permission_required('media.change_emprunt')
def retour_emprunt(request, empruntid):
    try:
        emprunt_instance = Emprunt.objects.get(pk=empruntid)
    except Emprunt.DoesNotExist:
        messages.error(request, u"Entrée inexistante")
        return redirect("admin:media_emprunt_changelist")
    with transaction.atomic(), reversion.create_revision():
        emprunt_instance.permanencier_rendu = request.user
        emprunt_instance.date_rendu = timezone.now()
        emprunt_instance.save()
        reversion.set_user(request.user)
        messages.success(request, "Retour enregistré")
    return redirect("admin:media_emprunt_changelist")


def index(request):
    """
    Home page which redirect to admin when logged in
    """
    if request.user.is_authenticated:
        return redirect('admin:index')
    else:
        return render(request, 'admin/index.html', {
            'title': _('Welcome to the Mediatek database'),
        })


class AuteurViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows authors to be viewed or edited.
    """
    queryset = Auteur.objects.all()
    serializer_class = AuteurSerializer


class MediaViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows media to be viewed or edited.
    """
    queryset = BD.objects.all()
    serializer_class = MediaSerializer


class EmpruntViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows borrowed items to be viewed or edited.
    """
    queryset = Emprunt.objects.all()
    serializer_class = EmpruntSerializer


class JeuViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows games to be viewed or edited.
    """
    queryset = Jeu.objects.all()
    serializer_class = JeuSerializer