import json

from django.conf import settings
from django.contrib.auth.mixins import LoginRequiredMixin
from django.http import HttpResponse, JsonResponse
from django.shortcuts import render
from django.views import View

from core.lib.opensearch import initialise_opensearch, run_main_query

client = initialise_opensearch()


def query_results(request, post_params, api=False):
    fields = None
    if "fields" in request.POST:
        fields = request.POST.getlist("fields")
    if "size" in request.POST:
        size = request.POST["size"]
    if "query" in request.POST:
        query = request.POST["query"]
        results = run_main_query(client, request.user, query, fields, size)
        if not results:
            return False
        results_parsed = []
        if "hits" in results.keys():
            if "hits" in results["hits"]:
                for item in results["hits"]["hits"]:
                    results_parsed.append(item["_source"])
        context = {
            "query": query,
            "results": results_parsed,
            "card": results["hits"]["total"]["value"],
            "took": results["took"],
            "redacted": results["redacted"],
            "exemption": results["exemption"],
            "fields": settings.OPENSEARCH_MAIN_SEARCH_FIELDS,
            "sizes": settings.OPENSEARCH_MAIN_SIZES,
            "timescales": settings.OPENSEARCH_MAIN_TIMESCALES,
        }
        return context


class Search(LoginRequiredMixin, View):
    # parser_classes = [JSONParser]
    template_name = "ui/results.html"
    plan_name = "drilldown"

    def post(self, request):
        if not request.user.has_plan(self.plan_name):
            return render(request, "denied.html")

        context = query_results(request, request.POST)
        context["data"] = json.dumps(
            [
                {
                    "id": item.get("id"),
                    "value": item.get("sentiment", 0),
                    "date": item.get("ts"),
                }
                for item in context["results"]
            ]
        )
        if context:
            return render(request, self.template_name, context)
        else:
            return HttpResponse("No results")


class APISearch(LoginRequiredMixin, View):
    # parser_classes = [JSONParser]
    template_name = "ui/results.html"
    plan_name = "drilldown"

    def post(self, request):
        if not request.user.has_plan(self.plan_name):
            return JsonResponse({"success": False})

        context = query_results(request, request.POST)
        return JsonResponse(context)