from django.db.models import Q
from django.views.generic import ListView
from rest_framework import viewsets
from .serializers import PlatformSerializer

from .models import Game, Platform, Timeline

class PlatformViewSet(viewsets.ModelViewSet):
    """
    API endpoints that allows platforms to be edited or viewed.

    retrieve:
    Return the given platform

    list:
    Return a list of all existing platforms ordered by name.

    create:
    Create a new platform instance.
    """
    queryset = Platform.objects.all().order_by('name')
    serializer_class = PlatformSerializer


class GameList(ListView):
    model = Game
    context_object_name = 'non_excluded_games'
    template_name = 'games/index.html'
    queryset = Game.objects.filter(
        ~Q(status=Game.EXCLUDED) &
        Q(wish=False)).order_by('name')

    def get_context_data(self, **kwargs):
        """
        Add playing games list.
        Add 5 last current activities from Timeline
        """
        context = super(GameList, self).get_context_data(**kwargs)
        context['playing_games'] = Game.objects.filter(
            playing=True).order_by('name')
        context['last_timelines'] = Timeline.objects.filter(
            ~Q(item__status=Game.EXCLUDED)
        ).order_by(
            '-date')[:5]
        return context