# coding=utf-8
import datetime
import logging
from typing import TYPE_CHECKING

from apps.web.exceptions import PostPayOrderError

if TYPE_CHECKING:
    from apps.web.user.models import RechargeRecord
    from apps.web.user.utils2 import OrderContext


logger = logging.getLogger(__name__)


class PostPay(object):

    def __init__(self, order):  # type: (RechargeRecord)-> None
        self._order = order

    def do(self):   # type:() -> None
        try:
            with PostPayOrderContextManager() as manager:
                context = manager.init_context(order=self._order)    # type: OrderContext

                if not context.terminal:
                    logger.warning('[PostPay] {} check failure. terminal is not exist.'.format(self._order))
                    return

                if not context.terminal.owner:
                    logger.warning('[PostPay] {} check failure. owner is not exist.'.format(self._order))
                    return

                if self._order.ownerId != context.terminal.ownerId:
                    logger.warning('[PostPay] {} check failure. ownerId of records != ownerId of group.'.format(self._order))
                    return

                if not context.user:
                    logger.warning('[PostPay] {} check failure. openid is null.'.format(self._order))
                    return

                diff_ts = (datetime.datetime.now() - self._order.dateTimeAdded).total_seconds()

                logger.debug(
                    '[PostPay] {} in ({}) via={} attachParas={} record={} diff={}'.format(
                        repr(self._order.user), self._order.gateway, self._order.via, self._order.attachParas, self._order, diff_ts)
                )

                context.goods.attach_to(self._order, self._order.user)
        except PostPayOrderError as pe:
            # 此错误一定是attach_to 执行成功之前发送 此时用户尚未获取商品 所以可执行金额退还的操作
            logger.error('[PostPay] do, order = {}, error = {}'.format(self._order, pe))
            # TODO zjl 执行退款操作 并将订单设置为关闭状态
            return

        # 执行统一的后续流程
        self.deal_with_order()

    def deal_with_order(self):
        """
        TODO 处理订单的后续问题 订单总金额累加 发送金额通知等
        """


def post_pay(order):
    logger.info('[post_pay] post pay order = {}'.format(order))
    PostPay(order).do()