# -*- coding: utf-8 -*-
import datetime
import logging

from mongoengine import DoesNotExist, ValidationError
from typing import TYPE_CHECKING

from apps.web.constant import USER_RECHARGE_TYPE
from apps.web.core.payment import WithdrawGateway
from apps.web.device.models import Group
from apps.web.report.ledger import Ledger
from apps.web.user.models import Card, RechargeRecord

if TYPE_CHECKING:
    from apps.web.device.models import DeviceDict

logger = logging.getLogger(__name__)


class CYConstant(object):
    FINISH_REASON_MAP = {
        '01': '充满电停止',
        '02': '超功率停止',
        '03': '时间用完停止',
        '04': '远程停止',
        '05': '预付卡的扣费金额用完',
        '06': '到达安全充电时间',
        '07': '正常结束充电',
        '09': '电量超限',
        '10': '设备充满停止充电'
    }

    NEED_REFUND = ["01", "04", "05", "06", "07", "10"]
    DEFAULT_DISCOUNT = "0"
    REFUND_PRODUCTION_TIME = 5

    MAX_TEMPERATURE = 70
    MIN_TEMPERATURE = -15


class FunCode(object):

    # 发送设备事件

    GET_SETTING      = "A0"
    SET_SETTING      = "A1"
    GET_DEV_INFO     = "A2"
    CLEAN_DEV_INFO   = "A3"
    REFUND_RECORD    = "A4"
    CHARGE_RECORD    = "A5"
    CHECK_DEV_STATUS = "A6"
    WEIXIN_PAY_START = "A7"
    START_OR_STOP    = "A9"
    CARD_RECHARGR    = "AC"
    CARD_BALANCE     = "AD"
    STOP_DEV         = "AF"
    RESTART          = "B0"


class CmdCode(object):

    # 设备上报事件

    CARD_REFUND      = "B3"
    STOP_DEV         = "A8"
    DEV_CONNECTED    = "AE"
    CARD_PAY_START   = "B1"
    HEART_BEAT       = "B2"


class CYCardMixin(object):
    if TYPE_CHECKING:
        @property
        def device(self):
            # type:()->DeviceDict
            return DeviceDict()

        def notify_dealer(self, templateName, **kwargs):
            pass

    def check_card_can_use(self, card):     # type:(Card) -> bool
        """
        对于平台卡检验 的判定
        返回结果是可用或者不可用
        注意： 卡是否录入是以经销商录入为标准判定
        规则是：
        1.如果校验开关关闭 则都是可用的
        2.如果校验开关打开 卡录入情况下可用 卡没有录入的情况下不可用
        """
        needBindCard = self.device.otherConf.get("needBindCard", True)
        if not needBindCard:
            return True

        # 剩下的是需要检验的情况
        # 1. 没有绑定
        if not card:
            return False

        # 2. 解除了绑定（经销商绑定的卡会通过检验 经销商绑定的卡是 匿名用户的openId）
        if not card.openId:
            return False

        # 3. 卡被冻结
        if card.frozen:
            return False

        # 4. 地址不通用的情况
        if not Group.is_currency_mode_group(card.groupId, self.device.groupId):
            return False

        return True

    def update_card_dealer_and_type(self, cardNo, cardType='IC', isHaveBalance=True, balance=None):
        """
        从数据库找卡 主要功能是为没有卡类型的卡添加上卡的类型
        昌原的卡比较特别 如果是数据库的卡 一定会有dealerId
        """
        from apps.web.agent.models import Agent

        dealer = self.device.owner
        agent = Agent.objects(id = dealer.agentId).first()  # type: Agent
        if not agent:
            logger.error('agent is not found, agentId=%s' % dealer.agentId)
            return None

        try:
            card = Card.objects.get(cardNo=cardNo, agentId=str(agent.id))

            # 存在卡的类型 说明已经在数据库中了
            if card.cardType:
                return card

            card.devNo = card.devNo or self.device.devNo
            card.cardType = card.cardType or cardType
            card.isHaveBalance = isHaveBalance

            return card.save()
        except DoesNotExist:
            return None
        except Exception as e:
            logger.error("[CYCardMixin update_card_dealer_and_type] find card error = {}, dev = {}".format(e, self.device.devNo))
            return None

    def notify_invalid_card_to_dealer(self, cardNo, card):
        logger.info('[CYCardMixin notify_invalid_card_to_dealer] Illegal card <{}>, charging is about to stop'.format(cardNo))

        self.notify_dealer(
            'device_fault',
            title=u'您当前的设备已被非法卡使用！',
            device=u'设备{}-{}'.format(self.device.logicalCode, self.device.groupNumber),
            location=u'地址{}-{}'.format(self.device.group.address, self.device.group.groupName),
            fault="启动卡号为：{} 卡联系人 {} 卡联系电话 {}".format(
                cardNo, card.nickName if card else "", card.phone if card else ""
            ),
            notifyTime=datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        )

    def do_ledger(self, rechargeRcdId):
        logger.info("[{} do_ledger] rechargeId = {}, devNo= {}".format(self.__class__.__name__, rechargeRcdId, self.device.devNo))

        if not rechargeRcdId:
            return

        record = RechargeRecord.objects(id = rechargeRcdId).first()  # type: RechargeRecord
        if not record:
            logger.error("dev <{}> don't get a recharge record by id <{}>".format(self.device.devNo, rechargeRcdId))
            return

        if not record.is_success:
            logger.debug('{} state is {}.'.format(str(record), record.result))
            raise ValueError(u'订单不能为未支付状态')

        try:
            if record.is_ledgered:
                logger.debug('{} has been ledgered.'.format(str(record)))
                return record

            ledgerTime = None if (
                not WithdrawGateway.is_ledger(record.withdraw_source_key)) else datetime.datetime.now()

            ledger = Ledger(USER_RECHARGE_TYPE.RECHARGE, record, ledgerTime=ledgerTime)
            ledger.execute(stats=True)

        except DoesNotExist as de:
            logger.error("dev <{}> don't get a recharge record by id <{}>".format(self.device.devNo, rechargeRcdId))
            return
        except ValidationError as ve:
            logger.error("dev <{}> bad a recharge record id <{}>".format(self.device.devNo, rechargeRcdId))
            return
        except Exception as e:
            logger.exception(e)
            return

        # 执行分账成功的情况下 将充值订单返回
        return record