import logging

from django.contrib.auth.mixins import LoginRequiredMixin
from django.http import HttpResponse, JsonResponse
from django.shortcuts import render
from rest_framework.parsers import FormParser
from rest_framework.views import APIView

from core.lib.threshold import (
    annotate_num_chans,
    annotate_num_users,
    annotate_online,
    get_chans,
    get_users,
)

logger = logging.getLogger(__name__)


class ThresholdChans(LoginRequiredMixin, APIView):
    parser_classes = [FormParser]
    plan_name = "drilldown"

    def post(self, request):
        if not request.user.has_plan(self.plan_name):
            return JsonResponse({"success": False})
        if "net" not in request.data:
            return JsonResponse({"success": False})
        if "query" not in request.data:
            return JsonResponse({"success": False})
        net = request.data["net"]
        query = request.data["query"]
        channels = get_chans(net, [query])
        if not channels:
            return HttpResponse("")
        channels_human = ", ".join(channels)
        return HttpResponse(channels_human)


class ThresholdUsers(LoginRequiredMixin, APIView):
    parser_classes = [FormParser]
    plan_name = "drilldown"

    def post(self, request):
        if not request.user.has_plan(self.plan_name):
            return JsonResponse({"success": False})
        if "net" not in request.data:
            return JsonResponse({"success": False})
        if "query" not in request.data:
            return JsonResponse({"success": False})
        net = request.data["net"]
        query = request.data["query"]
        users = get_users(net, [query])
        if not users:
            return HttpResponse("")
        users_human = ", ".join(users)
        return HttpResponse(users_human)


class ThresholdOnline(LoginRequiredMixin, APIView):
    parser_classes = [FormParser]
    plan_name = "drilldown"

    def post(self, request):
        if not request.user.has_plan(self.plan_name):
            return JsonResponse({"success": False})
        if "net" not in request.data:
            return JsonResponse({"success": False})
        if "query" not in request.data:
            return JsonResponse({"success": False})
        net = request.data["net"]
        query = request.data["query"]
        online_info = annotate_online(net, query)
        return JsonResponse(online_info)


class ThresholdInfoModal(LoginRequiredMixin, APIView):
    parser_classes = [FormParser]
    plan_name = "drilldown"
    template_name = "modals/info.html"

    def post(self, request):
        if not request.user.has_plan(self.plan_name):
            return JsonResponse({"success": False})
        if "net" not in request.data:
            return JsonResponse({"success": False})
        if "nick" not in request.data:
            return JsonResponse({"success": False})
        if "channel" not in request.data:
            return JsonResponse({"success": False})
        net = request.data["net"]
        nick = request.data["nick"]
        channel = request.data["channel"]
        channels = get_chans(net, [nick])
        users = get_users(net, [channel])
        num_users = annotate_num_users(net, channels)
        num_chans = annotate_num_chans(net, users)
        if channels:
            inter_users = get_users(net, channels)
        else:
            inter_users = []
        if users:
            inter_chans = get_chans(net, users)
        else:
            inter_chans = []
        context = {
            "net": net,
            "nick": nick,
            "channel": channel,
            "chans": channels,
            "users": users,
            "inter_chans": inter_chans,
            "inter_users": inter_users,
            "num_users": num_users,
            "num_chans": num_chans,
        }
        return render(request, self.template_name, context)