"""Configuration and marshaling of ActivityDetectorFeed statuses."""
import datetime

from flask_restful import fields
from flask_restful import marshal_with
from flask_restful import Resource

from feed_status import config
from feed_status.models import activity_detector_feed
from feed_status.models import feed_monitor
from feed_status.util import generate_default_date_dict_range

activity_detector_feed_status_fields = {
    'data': fields.List(
        fields.Nested(
            {
                'delivery_date': fields.String,
                'feed_id': fields.String(attribute='feed_id'),
                'feed_name': fields.String(attribute='feed_name'),
                'metrics': fields.Raw,
                'status_history': fields.Raw(attribute='status_history'),

            })),
    'dates': fields.List(fields.String)
}


class ActivityDetectorFeedStatus(Resource):
    """Provides response for /activity_detector/<feed_name>/status."""

    @marshal_with(activity_detector_feed_status_fields)
    def get(self, feed_id, date=None):
        """Marshal specific OutgoingFeed status.

        Args:
            feed_id (str): specific feed of interest.

        Returns:
            dict: json payload for feed status.
        """
        days_count = config.DASHBOARD_DISPLAYED_DAYS

        if date:
            to_date = datetime.date.fromisoformat(date)
        else:
            to_date = datetime.date.today()
        delta = datetime.timedelta(days=days_count)
        from_date = to_date - delta

        ad_feeds = activity_detector_feed.get_active_feeds()
        for feed in ad_feeds:
            feed.status_history \
                = activity_detector_feed.get_activity_detector_feed_history(
                    feed,
                    from_date,
                    to_date,
                )
            feed.metrics = feed_monitor.get_metric_status(
                feed,
                feed.status_history,
            )

        dates = generate_default_date_dict_range(from_date, to_date)
        dates = list(dates.keys())
        return {
            'data': ad_feeds,
            'dates': dates
        }