"""Create show family and backfill show family id for single feeds.

Run this in dev with command
PYTHONPATH=. env/bin/python3.8 dev/backfill_show_family_id_for_single_feeds.py -- -env dev
"""

import argparse
import logging
import sys

from podcast.connectors import mysql
from podcast.models import podcast as podcast_model
from podcast.models import show_family as show_family_model
from podcast.utils import api_utils


log = logging.getLogger('main')
log.setLevel(logging.DEBUG)
fmt = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
sh = logging.StreamHandler(sys.stdout)
sh.setFormatter(fmt)
log.addHandler(sh)


users = {
    'dev': '366',
    'qa': '1298',
    'prod': '88'
}

request_headers = None


def get_podcasts_without_show_family_id():
    """Return podcasts without show_family_id.

    Returns:
        dict: containing the podcasts.
    """
    with mysql.pod_db_session(read_only=True) as session:
        rows = session.query(podcast_model.Podcast).filter(
            podcast_model.Podcast.is_deleted.isnot(True),
            podcast_model.Podcast.show_family_id.is_(None)
        ).all()

        return [row.to_dict() for row in rows]


def backfill_show_family_id_for_single_feeds(user_id):
    """Create show family, backfill show family id for single feeds.

    Args:
        user_id (str): user id of the user based on env.
    """
    podcast_id = None
    error_count = 0
    errored_podcast_ids = []

    print('Fetching podcasts without show_family_id')
    podcasts = get_podcasts_without_show_family_id()

    with mysql.pod_db_session() as session:
        for podcast in podcasts:
            try:
                podcast_id = podcast['id']
                print(f'\nRunning for podcast having id: {podcast_id}')
                created_show_family = show_family_model.create_show_family(
                    {
                        'network_id': podcast['network_id'],
                        'title': podcast['title'],
                        'created_by': user_id,
                        'updated_by': user_id
                    },
                    session
                )
                show_family_id = created_show_family['id']
                print(
                    'Created show_family having id: {} and title: "{}" '.format(
                        show_family_id, created_show_family['title'])
                )

                podcast_model.update_podcast(
                    podcast_id,
                    {
                        'show_family_id': show_family_id
                    },
                    session
                )
                print(f'Updated podcast: {podcast_id} with show_family_id: {show_family_id}')

            except Exception as e:
                errored_podcast_ids.append(podcast_id)
                error_count += 1
                log.info(
                    f'Got an exception for podcast having id: {podcast_id}\n'
                    f'Exception trace: {e}\n'
                )

    print(f'\nErrored count: {error_count} and errored_podcast_ids: {errored_podcast_ids} \n')


def main():
    """Extract shell arguments, create show family, start backfilling show_family_id for single feeds."""
    global request_headers
    argparser = argparse.ArgumentParser(prog='Backfill show_family_id for single feeds')
    argparser.add_argument('-env', required=True, help='env', default='qa')

    args = argparser.parse_args()
    env = args.env
    user_id = users[env]

    def get_user_id():
        """Mock get user id return value."""
        return user_id

    api_utils.get_user_id = get_user_id

    request_headers = {
        'Grass-Account-Type': 'vendor',
        'Grass-Account-Id': '1',
        'Correlation-Id': '12',
        'Orchard-Identity-UUID': 'podcast-admin',
        'Content-Type': 'application/json'
    }

    log.info(f'Running backfill_show_family_id_for_single_feeds for {env} environment.\n')

    backfill_show_family_id_for_single_feeds(user_id)


if __name__ == '__main__':
    main()