import logging

from django.contrib import messages
from django.contrib.auth.models import User
from django.db.models import Count, Q
from django.shortcuts import redirect
from django.urls import reverse
from django.views.generic import DetailView, ListView
from django.views.generic.edit import CreateView, DeleteView, UpdateView

from camps.mixins import CampViewMixin
from tokens.models import Token, TokenFind

from ..mixins import RaisePermissionRequiredMixin

logger = logging.getLogger("bornhack.%s" % __name__)


################################
# Secret Token views


class TokenListView(CampViewMixin, RaisePermissionRequiredMixin, ListView):
    """Show a list of secret tokens for this camp"""

    permission_required = ["camps.backoffice_permission", "camps.gameteam_permission"]
    model = Token
    template_name = "token_list.html"


class TokenDetailView(CampViewMixin, RaisePermissionRequiredMixin, DetailView):
    """Show details for a token."""

    permission_required = ["camps.backoffice_permission", "camps.gameteam_permission"]
    model = Token
    template_name = "token_detail.html"


class TokenCreateView(CampViewMixin, RaisePermissionRequiredMixin, CreateView):
    """Create a new Token."""

    permission_required = ["camps.backoffice_permission", "camps.gameteam_permission"]
    model = Token
    template_name = "token_form.html"
    fields = ["token", "category", "description"]

    def form_valid(self, form):
        token = form.save(commit=False)
        token.camp = self.camp
        token.save()
        return redirect(
            reverse(
                "backoffice:token_detail",
                kwargs={"camp_slug": self.camp.slug, "pk": token.id},
            )
        )


class TokenUpdateView(CampViewMixin, RaisePermissionRequiredMixin, UpdateView):
    """Update a token."""

    permission_required = ["camps.backoffice_permission", "camps.gameteam_permission"]
    model = Token
    template_name = "token_form.html"
    fields = ["token", "category", "description"]


class TokenDeleteView(CampViewMixin, RaisePermissionRequiredMixin, DeleteView):
    permission_required = ["camps.backoffice_permission", "camps.gameteam_permission"]
    model = Token
    template_name = "token_delete.html"

    def delete(self, *args, **kwargs):
        self.get_object().tokenfind_set.all().delete()
        return super().delete(*args, **kwargs)

    def get_success_url(self):
        messages.success(
            self.request, "The Token and all related TokenFinds has been deleted"
        )
        return reverse("backoffice:token_list", kwargs={"camp_slug": self.camp.slug})


class TokenStatsView(CampViewMixin, RaisePermissionRequiredMixin, ListView):
    """Show stats for token finds for this camp"""

    permission_required = ["camps.backoffice_permission", "camps.gameteam_permission"]
    model = User
    template_name = "token_stats.html"

    def get_queryset(self, **kwargs):
        tokenusers = (
            TokenFind.objects.filter(token__camp=self.camp)
            .distinct("user")
            .values_list("user", flat=True)
        )
        return (
            User.objects.filter(id__in=tokenusers)
            .annotate(
                token_find_count=Count(
                    "token_finds", filter=Q(token_finds__token__camp=self.camp)
                )
            )
            .exclude(token_find_count=0)
        )