from django.contrib.auth import get_user_model
from django.shortcuts import get_object_or_404
from rest_framework.response import Response

from ....core.shortcuts import get_int_or_404
from ...models import Rank
from ...serializers import UserCardSerializer
from ...viewmodels import ActivePosters, RankUsers

User = get_user_model()


def active(request):
    users = ActivePosters(request)
    return Response(users.get_frontend_context())


def rank_users(request):
    rank_pk = get_int_or_404(request.query_params.get("rank"))
    rank = get_object_or_404(Rank.objects, pk=rank_pk, is_tab=True)

    page = get_int_or_404(request.GET.get("page", 0))
    if page == 1:
        page = 0  # api allows explicit first page

    users = RankUsers(request, rank, page)
    return Response(users.get_frontend_context())


LISTS = {"active": active}


def list_endpoint(request):
    list_type = request.query_params.get("list")
    list_handler = LISTS.get(list_type)

    if list_handler:
        return list_handler(request)
    else:
        return rank_users(request)


ScoredUserSerializer = UserCardSerializer.extend_fields("meta")