import logging
from queries.connection import connection

logger = logging.getLogger(__name__)

def get_all_weekly_analytics(end_date:str = 'now'):
    try:
        return connection.query('''                                
            WITH RECURSIVE timeseries(d) AS (
                VALUES(date(:end_date, 'weekday 0'))
                UNION ALL
                SELECT date(d, '-7 day') as d
                FROM timeseries 
                WHERE d > date(:end_date, '-30 days')
            ),
            weeks AS (
                SELECT strftime('%W',d) as w
                FROM timeseries
            ),
            stats AS (
                SELECT 
                    strftime('%W', timestamp) as w,
                    counter_id,
                    sum(increment) as count
                FROM entries
                group by counter_id, strftime('%W', timestamp)
            )
            select 
                s.w as week,
                case 
                    when counter_id is null then json_object()
                    else json_group_object(name, count) 
                end as counters
            FROM weeks s
            left outer join stats t on s.w = t.w
            left join counters c on t.counter_id = c.id
            GROUP by s.w
            ''', params={"end_date": end_date}, ttl=0)
    except Exception as e:
        logger.error(e)
        return None

def get_weekly_analytics(counter_id:int, end_date:str = 'now'):
    try:
        return connection.query('''
            WITH RECURSIVE timeseries(d) AS (
                 VALUES(date(:end_date, 'weekday 0'))
                 UNION ALL
                 SELECT date(d, '-7 day')
                 FROM timeseries 
                 WHERE d > date(:end_date, '-30 days')
            ),
            weeks AS (
                SELECT strftime('%W',d) as w
                FROM timeseries
            ),
            stats AS (
                SELECT 
                    strftime('%W', timestamp) as w,
                    sum(increment) as count
                FROM entries
                where counter_id = :id
                group by strftime('%W', timestamp)
            )
            SELECT 
                w.w as "week", 
                coalesce(s.count, 0) as count 
            FROM weeks as w
            LEFT JOIN stats as s on s.w = w.w 
            ''', params={'id': counter_id, "end_date": end_date}, ttl=0)
    except Exception as e:
        logger.error(e)
        return None