from rest_framework.permissions import IsAuthenticated, IsAdminUser
from rest_framework import viewsets

from .serializers import ContestSerializer, BandSerializer, FrequencySerializer, EntryCategorySerializer, \
    ReferenceSerializer, QSOSerializer, ShadowCallSerializer, UserSerializer
from contest.models import Contest, Band, Frequency, EntryCategory, Reference, QSO, ShadowCall, User


class ContestViewSet(viewsets.ReadOnlyModelViewSet):
    """
    Resource to list and view all available contests. Use `current/` to get the current Contest.
    """
    queryset = Contest.objects.all()
    serializer_class = ContestSerializer
    filterset_fields = ['shortName']

    def get_object(self):
        lookup_url_kwarg = self.lookup_url_kwarg or self.lookup_field
        if self.kwargs.get(lookup_url_kwarg) == "current":
            obj = Contest.get_current_contest()
            self.check_object_permissions(self.request, obj)
        else:
            obj = super(ContestViewSet, self).get_object()

        return obj


class BandViewSet(viewsets.ReadOnlyModelViewSet):
    queryset = Band.objects.all()
    serializer_class = BandSerializer
    filterset_fields = ['name', 'contest']


class FrequencyViewSet(viewsets.ReadOnlyModelViewSet):
    queryset = Frequency.objects.all()
    serializer_class = FrequencySerializer
    filterset_fields = ['band', 'channel']


class EntryCategoryViewSet(viewsets.ReadOnlyModelViewSet):
    queryset = EntryCategory.objects.all()
    serializer_class = EntryCategorySerializer
    filterset_fields = ['name']


class ReferenceViewSet(viewsets.ReadOnlyModelViewSet):
    permission_classes = [IsAdminUser]
    queryset = Reference.objects.all()
    serializer_class = ReferenceSerializer
    filterset_fields = ['name']


class QSOViewSet(viewsets.ModelViewSet):
    permission_classes = [IsAuthenticated]
    serializer_class = QSOSerializer
    filterset_fields = ['time', 'ownNo', 'band', 'call', 'refStr']

    def get_queryset(self):
        return QSO.objects.filter(owner=self.request.user)

    def perform_create(self, serializer):
        return serializer.save(owner=self.request.user)


class UserProfileViewSet(viewsets.ModelViewSet):
    """
    Resource to view user-profiles, currently restricted to the current user's profile.
    Use `me/` to get the profile of the currently logged in user.
    """
    permission_classes = [IsAuthenticated]
    serializer_class = UserSerializer

    def get_queryset(self):
        return User.objects.filter(id=self.request.user.id)

    def get_object(self):
        lookup_url_kwarg = self.lookup_url_kwarg or self.lookup_field
        if self.kwargs.get(lookup_url_kwarg) == "me":
            obj = self.request.user
            self.check_object_permissions(self.request, obj)
        else:
            obj = super(ContestViewSet, self).get_object()

        return obj


class ShadowCallViewSet(viewsets.ReadOnlyModelViewSet):
    permission_classes = [IsAdminUser]
    queryset = ShadowCall.objects.all()
    serializer_class = ShadowCallSerializer
    filterset_fields = ['username', 'ref']