#!/srv/newsblur/venv/newsblur3/bin/python
from utils.munin.base import MuninGraph


class NBMuninGraph(MuninGraph):
    @property
    def graph_config(self):
        graph = {
            "graph_category": "NewsBlur",
            "graph_title": "NewsBlur App Server Times",
            "graph_vlabel": "Page load time / server",
            "graph_args": "-l 0",
        }

        stats = self.stats
        graph["graph_order"] = " ".join(sorted(s["_id"] for s in stats))
        graph.update(dict((("%s.label" % s["_id"], s["_id"]) for s in stats)))
        graph.update(dict((("%s.draw" % s["_id"], "LINE1") for s in stats)))

        return graph

    def calculate_metrics(self):
        servers = dict((("%s" % s["_id"], s["page_load"]) for s in self.stats))

        return servers

    @property
    def stats(self):
        import datetime
        import os

        os.environ["DJANGO_SETTINGS_MODULE"] = "newsblur_web.settings"
        from django.conf import settings

        stats = settings.MONGOANALYTICSDB.nbanalytics.page_loads.aggregate(
            [
                {
                    "$match": {
                        "date": {
                            "$gt": datetime.datetime.now() - datetime.timedelta(minutes=5),
                        },
                    },
                },
                {
                    "$group": {
                        "_id": "$server",
                        "page_load": {"$avg": "$page_load"},
                    },
                },
            ]
        )

        return list(stats)


if __name__ == "__main__":
    NBMuninGraph().run()