from .MerchantCalc import MerchantCalc, mch_detail_paths, mch_paths, detail_paths
from .algorithm import calc_morder_lack
from .DataStream import EMchPosmap as pos_map
import time as time
import json
import redis

import logging
logger = logging.getLogger('MAmountCalc')

def earliest_time(rclient: redis.client):
    result = {}
    min_time = int(time.time())

    data = rclient.get('nc_refill-stat-earliest-ordertime')
    if data is not None:
        mchid_times = json.loads(data)
        for mchid,order_time in mchid_times.items():
            mchid = int(mchid)
            order_time = int(order_time)
            result[mchid] = order_time
            if order_time < min_time:
                min_time = order_time
        return result, min_time
    else:
        return result, min_time

class MAmountCalc(MerchantCalc):
    def _calc_handler(self, rclient):
        mchid_times,earliest = earliest_time(rclient)
        end_time = int(time.time())
        reader = self._reader()

        days, start_time, end_time = self.calc_time(reader, earliest, end_time)
        day_stamp = days[0]
        tuple_pathes = reader.many_tuple_path(days)
        gen = detail_paths(reader, tuple_pathes, days)

        mamounts = dict()
        for _mchid, _card_type, _spec, _data in gen:
            if _mchid not in mchid_times:
                continue
            else:
                _start_time = mchid_times[_mchid]

            send_amounts, lack_amounts = calc_morder_lack(_data, pos_map, start_time - day_stamp, end_time - day_stamp)
            if _mchid not in mamounts:
                mamounts[_mchid] = {'send_amounts': send_amounts, 'lack_amounts': lack_amounts}
            else:
                mamounts[_mchid]['send_amounts'] += send_amounts
                mamounts[_mchid]['lack_amounts'] += lack_amounts

        result = dict()
        for _mchid, _val in mamounts.items():
            _send_amounts = round(_val['send_amounts'], 2)
            _lack_amounts = round(_val['lack_amounts'], 2)
            result[_mchid] = {'send_amounts': _send_amounts, 'lack_amounts': _lack_amounts}

        val = json.dumps({'send_amounts': result, 'time': int(time.time())})
        rclient.set('nc_refill-stat-merchant-sendamount',val)
        logger.debug(result)

        return 1