"""Snowflake connector class for MRC tasks."""
import datetime

import config

from snowflake_connector.etl_connector import SQLLoader
from snowflake_connector.etl_connector import SnowflakeSQLExecutor

# Load SQL templates
sql_loader = SQLLoader(__file__)
looker_sql_loader = SQLLoader(__file__, folder='/looker_queries')


class SoundCloudStatsSFExecutor(SnowflakeSQLExecutor):
    """Helper class to abstract Snowflake operations."""

    @property
    def stats_name(self):
        """Name of the stats.

        Should match dir name of these stats,
        stats_name in config.py of a statistics.

        Returns:
            str: Stats name, e.g. 'soundcloud_statistics'.
        """
        return config.FLOW_NAME

    @property
    def artist_to_track_table(self):
        """Name of the artist_to_track table for the statistics.

        Returns:
            str: {stats}_artist_to_track table name.
        """
        return config.snowflake_table_names['soundcloud_artist_to_track']

    @property
    def soundcloud_statistics_table(self):
        """Name of the artist_to_track table for the statistics.

        Returns:
            str: {stats}_artist_to_track table name.
        """
        return config.snowflake_table_names['soundcloud_statistics']

    @property
    def staging_raw_table(self):
        """Name of the staging raw table for the statistics.

        Returns:
            str: staging raw table name.
        """
        return config.snowflake_table_names['staging_raw']

    def create_artist_link_table(self):
        """Create artists links table."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.artist_to_track_table)
        return self.fetchone_query(
            sql_loader, 'create_all_links_table', params)

    def create_soundcloud_statistics(self):
        """Create soundcloud statistics historical table."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.soundcloud_statistics_table)
        return self.fetchone_query(
            sql_loader, 'create_soundcloud_statistics', params)

    def create_staging_raw_soundcloud_statistics(self):
        """Create staging raw soundcloud statistics historical table."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.staging_raw_table)
        return self.fetchone_query(
            sql_loader, 'create_soundcloud_statistics', params)

    def select_artists_links(self):
        """Select artists links from soundcloud_artist_to_track."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.artist_to_track_table)
        result = self.fetchall_query(sql_loader, 'select_artists', params)
        return result

    def select_artists_stats(self):
        """Load temp staging raw table."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.soundcloud_statistics_table)
        result = self.fetchall_query(
            sql_loader, 'select_artists_stats', params)
        return result

    def update_artist_stats(self, stats: dict, artist):
        """Load main statistics table."""
        stats['the_latest_release'] = datetime.datetime.strptime(
            '2000-01-01', '%Y-%m-%d') \
            if stats.get('the_latest_release') is None \
            else stats.get('the_latest_release')
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.soundcloud_statistics_table,
            artist=artist,
            soundcloud_link=stats.get('soundcloud_link'),
            current_followers_count=stats.get('current_followers_count'),
            last_week_followers_count=stats.get('last_week_followers_count'),
            weekly_change_in_followers_count=stats.get(
                'weekly_change_in_followers_count'),
            current_weekly_change_in_followers_count=stats.get(
                'current_weekly_change_in_followers_count'),
            daily_change_in_followers_count=stats.get(
                'daily_change_in_followers_count'),
            percentage_change_in_followers_count=stats.get(
                'percentage_change_in_followers_count'),
            acceleration_followers_count=stats.get(
                'acceleration_followers_count'),
            current_followings_count=stats.get('current_followings_count'),
            last_week_followings_count=stats.get('last_week_followings_count'),
            weekly_change_in_followings_count=stats.get(
                'weekly_change_in_followings_count'),
            percentage_change_in_followings_count=stats.get(
                'percentage_change_in_followings_count'),
            current_tracks_count=stats.get('current_tracks_count'),
            last_week_tracks_count=stats.get('last_week_tracks_count'),
            weekly_change_in_tracks_count=stats.get(
                'weekly_change_in_tracks_count'),
            percentage_change_in_tracks_count=stats.get(
                'percentage_change_in_tracks_count'),
            current_plays_count=stats.get('current_plays_count'),
            last_week_plays_count=stats.get('last_week_plays_count'),
            weekly_change_in_plays_count=stats.get(
                'weekly_change_in_plays_count'),
            current_weekly_change_in_plays_count=stats.get(
                'current_weekly_change_in_plays_count'),
            daily_change_in_plays_count=stats.get(
                'daily_change_in_plays_count'),
            percentage_change_in_plays_count=stats.get(
                'percentage_change_in_plays_count'),
            acceleration_plays_count=stats.get('acceleration_plays_count'),
            current_likes_count=stats.get('current_likes_count'),
            last_week_likes_count=stats.get('last_week_likes_count'),
            weekly_change_in_likes_count=stats.get(
                'weekly_change_in_likes_count'),
            current_weekly_change_in_likes_count=stats.get(
                'current_weekly_change_in_likes_count'),
            daily_change_in_likes_count=stats.get(
                'daily_change_in_likes_count'),
            percentage_change_in_likes_count=stats.get(
                'percentage_change_in_likes_count'),
            acceleration_likes_count=stats.get('acceleration_likes_count'),
            current_reposts_count=stats.get('current_reposts_count'),
            last_week_reposts_count=stats.get('last_week_reposts_count'),
            weekly_change_in_reposts_count=stats.get(
                'weekly_change_in_reposts_count'),
            percentage_change_in_reposts_count=stats.get(
                'percentage_change_in_reposts_count'),
            plays_engagement=stats.get('plays_engagement'),
            the_latest_release=stats.get(
                'the_latest_release').strftime('%d-%m-%Y'),
            last_processing_date=stats.get(
                'last_processing_date').strftime('%d-%m-%Y'),
            last_week_processing_date=stats.get(
                'last_week_processing_date').strftime('%d-%m-%Y')
        )
        result = self.fetchall_query(
            sql_loader, 'update_artists_stats', params)
        return result

    def update_artist_stats_last_processing_date(
            self, artist: str, last_processing_date: datetime):
        """Update artists statistics table on failure."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.soundcloud_statistics_table,
            last_processing_date=last_processing_date,
            artist=artist
        )
        result = self.fetchall_query(
            sql_loader, 'update_artists_stats_last_processing_date', params)
        return result

    def select_weekly_change(self, artist,
                             first_day_of_period=0,
                             last_day_of_period=-7):
        """Select artist weekly change in metrics from staging raw table."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.staging_raw_table,
            artist=artist,
            first_day_of_period=first_day_of_period,
            last_day_of_period=last_day_of_period
        )
        result = self.fetchall_query(
            sql_loader, 'select_weekly_change', params)
        try:
            weeklies = result[0] if len(result[0]) == 6 else [0] * 6
        except IndexError:
            weeklies = [0] * 6
        return dict(zip([
            'followers_count', 'followings_count',
            'tracks_count', 'plays_count',
            'likes_count', 'reposts_count'], list(weeklies)))

    def update_stating_raw_soundcloud_stats(self):
        """Load staging raw table."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=self.soundcloud_statistics_table,
            staging_raw_table_name=self.staging_raw_table
        )
        result = self.fetchall_query(
            sql_loader, 'update_stating_raw_soundcloud_stats', params)
        return result

    def delete_from_staging_raw(self):
        """Delete from staging raw today's rows to prevent duplicates."""
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            staging_raw_table=self.staging_raw_table,
            date=datetime.datetime.today().strftime('%Y-%m-%d'))
        result = self.fetchall_query(
            sql_loader, 'delete_from_staging_raw', params)
        return result

    def insert_artist_stats(
            self, artist, stats,
            table_name=config.snowflake_table_names['soundcloud_statistics']):
        """First soundcloud statistics insertion."""
        stats['the_latest_release'] = datetime.datetime.strptime(
            '2000-01-01', '%Y-%m-%d') \
            if stats.get('the_latest_release') is None \
            else stats.get('the_latest_release')
        params = dict(
            db=self.sf_config['db'],
            schema=self.sf_config['schema'],
            table_name=table_name,
            artist=artist,
            soundcloud_link=stats.get('soundcloud_link'),
            current_followers_count=stats.get('current_followers_count'),
            last_week_followers_count=stats.get('last_week_followers_count'),
            weekly_change_in_followers_count=stats.get(
                'weekly_change_in_followers_count'),
            current_weekly_change_in_followers_count=stats.get(
                'current_weekly_change_in_followers_count'),
            daily_change_in_followers_count=stats.get(
                'daily_change_in_followers_count'),
            percentage_change_in_followers_count=stats.get(
                'percentage_change_in_followers_count'),
            acceleration_followers_count=stats.get(
                'acceleration_followers_count'),
            current_followings_count=stats.get('current_followings_count'),
            last_week_followings_count=stats.get('last_week_followings_count'),
            weekly_change_in_followings_count=stats.get(
                'weekly_change_in_followings_count'),
            percentage_change_in_followings_count=stats.get(
                'percentage_change_in_followings_count'),
            current_tracks_count=stats.get('current_tracks_count'),
            last_week_tracks_count=stats.get('last_week_tracks_count'),
            weekly_change_in_tracks_count=stats.get(
                'weekly_change_in_tracks_count'),
            percentage_change_in_tracks_count=stats.get(
                'percentage_change_in_tracks_count'),
            current_plays_count=stats.get('current_plays_count'),
            last_week_plays_count=stats.get('last_week_plays_count'),
            weekly_change_in_plays_count=stats.get(
                'weekly_change_in_plays_count'),
            current_weekly_change_in_plays_count=stats.get(
                'current_weekly_change_in_plays_count'),
            daily_change_in_plays_count=stats.get(
                'daily_change_in_plays_count'),
            percentage_change_in_plays_count=stats.get(
                'percentage_change_in_plays_count'),
            acceleration_plays_count=stats.get('acceleration_plays_count'),
            current_likes_count=stats.get('current_likes_count'),
            last_week_likes_count=stats.get('last_week_likes_count'),
            weekly_change_in_likes_count=stats.get(
                'weekly_change_in_likes_count'),
            current_weekly_change_in_likes_count=stats.get(
                'current_weekly_change_in_likes_count'),
            daily_change_in_likes_count=stats.get(
                'daily_change_in_likes_count'),
            percentage_change_in_likes_count=stats.get(
                'percentage_change_in_likes_count'),
            acceleration_likes_count=stats.get('acceleration_likes_count'),
            current_reposts_count=stats.get('current_reposts_count'),
            last_week_reposts_count=stats.get('last_week_reposts_count'),
            weekly_change_in_reposts_count=stats.get(
                'weekly_change_in_reposts_count'),
            percentage_change_in_reposts_count=stats.get(
                'percentage_change_in_reposts_count'),
            plays_engagement=stats.get('plays_engagement'),
            the_latest_release=stats.get(
                'the_latest_release').strftime('%d-%m-%Y'),
            last_processing_date=stats.get(
                'last_processing_date').strftime('%d-%m-%Y'),
            last_week_processing_date=stats.get(
                'last_week_processing_date').strftime('%d-%m-%Y')
        )
        result = self.fetchall_query(
            sql_loader, 'insert_artists_stats', params)
        return result