# -*- coding: utf-8 -*-
# !/usr/bin/env python
import datetime
import logging
import uuid

from apilib.monetary import RMB, VirtualCoin
from apps.web.device.models import Device
from apps.web.eventer.base import WorkEvent
from apps.web.eventer import EventBuilder
from apps.web.user.models import MyUser, RechargeRecord

logger = logging.getLogger(__name__)


class builder(EventBuilder):
    def __getEvent__(self, device_event):
        event_data = self.deviceAdapter.analyze_event_data(device_event['data'])

        if event_data is None or 'cmdCode' not in event_data:
            return

        if event_data['cmdCode'] == '12':
            return ChargingDLYWorkEvent(self.deviceAdapter, event_data)

        return None


class ChargingDLYWorkEvent(WorkEvent):
    def do(self, **args):
        devNo = self.device['devNo']

        logger.info('duoliyuan charging event detected, devNo=%s' % devNo)

        lineInfo = Device.update_port_control_cache(self.device['devNo'], self.event_data)

        try:
            if (not lineInfo.has_key('openId')) or lineInfo['openId'] is None:
                return

            openId = lineInfo['openId']

            user = MyUser.objects(openId = openId, groupId = self.device['groupId']).first()
            self.notify_charging_finished(user.managerialOpenId if user else '')

            # 如果需要退款，计算退款数据.
            if not self.device.is_auto_refund:
                return

            leftTime = lineInfo['leftTime']
            needTime = lineInfo['needTime']

            coins = RMB(lineInfo['coins'])

            backCoins = coins * (float(leftTime) / float(needTime))

            if leftTime == 0 or backCoins > coins:
                return

            if backCoins <= VirtualCoin(0):
                logger.debug('back coins is zero.')
                return

            # 添加金币
            try:
                MyUser.get_collection().update({'openId': lineInfo['openId'], 'groupId': self.device['groupId']},
                                               {'$inc': {'balance': backCoins.mongo_amount}})
            except Exception, e:
                logger.error('feedback coins error=%s' % e)
                return

            # 添加一条充值记录
            orderNo = str(uuid.uuid4())
            try:
                group = {}
                newRcd = RechargeRecord(orderNo = orderNo,
                                        coins = backCoins, openId = lineInfo['openId'],
                                        groupId = self.device['groupId'],
                                        devNo = devNo, logicalCode = self.device['logicalCode'],
                                        ownerId = self.device['ownerId'], groupName = group['groupName'],
                                        groupNumber = self.device['groupNumber'], address = group['address'],
                                        wxOrderNo = u'设备退币',
                                        devTypeName = self.device.devTypeName, nickname = '',
                                        result = 'success', via = 'refund')
                newRcd.save()
            except Exception, e:
                logger.exception('update record for feedback coins error=%s,orderNo=%s' % (e, orderNo))

            self.notify_user(user.managerialOpenId if user else '', 'refund_coins', **{
                'title': u'充电已经结束。您订购的充电时间为%s分钟，还有：%s分钟的时间未使用完，给您退还成相应的金币，您下次可以接着使用哦' % (
                    lineInfo['needTime'], self.event_data['leftTime']),
                'backCount': u'金币：%s' % backCoins,
                'finishTime': datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
            })
        finally:
            Device.clear_port_control_cache(devNo, str(lineInfo['port']))