import datetime

from django.conf import settings
from django.shortcuts import render
from django.views import View


class TasksPipeline(View):
    def get(self, request):
        data = self.stats
        chart_name = "task_pipeline"
        chart_type = "counter"

        formatted_data = {}
        for k, v in data.items():
            formatted_data[k] = f'{chart_name}{{category="{k}"}} {v}'
        context = {
            "data": formatted_data,
            "chart_name": chart_name,
            "chart_type": chart_type,
        }
        return render(request, "monitor/prometheus_data.html", context, content_type="text/plain")

    @property
    def stats(self):
        stats = settings.MONGOANALYTICSDB.nbanalytics.feed_fetches.aggregate(
            [
                {
                    "$match": {
                        "date": {
                            "$gt": datetime.datetime.now() - datetime.timedelta(minutes=5),
                        },
                    },
                },
                {
                    "$group": {
                        "_id": 1,
                        "feed_fetch": {"$avg": "$feed_fetch"},
                        "feed_process": {"$avg": "$feed_process"},
                        "page": {"$avg": "$page"},
                        "icon": {"$avg": "$icon"},
                        "total": {"$avg": "$total"},
                    },
                },
            ]
        )
        stats = list(stats)
        if stats:
            print(stats)
            return list(stats)[0]
        else:
            return {}