import logging

from camps.mixins import CampViewMixin
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 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)
        )