# -*- coding: utf-8 -*-
#!/usr/bin/env python

# TODO 每家驱动有自己的adapter, eventer, 以及自定义的常亮定义. 需要后续以驱动为包来组织
# 本文件包含霍珀门禁设备的相关定义

import simplejson as json
from typing import TYPE_CHECKING

from apilib.monetary import RMB
from apps import serviceCache

if TYPE_CHECKING:
    from typing import Dict


class DefaultParams(object):
    DEFAULT_MAX_PARKING = 200
    DEFAULT_VIP_MAX_PARKING = 200
    DEFAULT_SN_NUM = u"请配置"

    DEFAULT_FREE_TIME = 0
    DEFAULT_MAX_CONSUME = 0

    # 四个常量
    SIGN = "1"
    DUTOU_NUM = '1'
    STAY_NUM = '0'
    AUTH_NUM = '0'

    INSTRUCT_FORMAT = "#{snNum},1,{dutou},{auth},{stay}@"


class CacheKeyTemplate(object):
    PARKING_KEY_TEMPLATE = "parking-num-{groupId}_service"


class HuopoCacheMgr(object):
    @classmethod
    def get_parking_cache(cls, group_id):
        # type: (basestring)->Dict

        cache_key = CacheKeyTemplate.PARKING_KEY_TEMPLATE.format(groupId = group_id)

        cache_value = serviceCache.get(cache_key)
        if cache_value:
            return json.loads(cache_value)
        else:
            return None

    @classmethod
    def set_parking_cache(cls, group_id, value):
        # type: (basestring, Dict)->Dict
        cache_key = CacheKeyTemplate.PARKING_KEY_TEMPLATE.format(groupId = group_id)
        serviceCache.set(cache_key, json.dumps(value))


class Caculater(object):

    def __init__(self, duration, package):
        """
        价格计算器
        :param duration:
        :param package:
        """
        self._duration = duration
        self._cycleHour, self._cyclePrice = int(package.get("maxHour", 0)), RMB(package.get("price", 0))
        assert self._cycleHour and self._cyclePrice
        
    @property
    def cycle(self):
        """
        计费周期
        :return:
        """
        cycleSecond = self._cycleHour * 3600
        return self._duration // cycleSecond + int(bool(self._duration % cycleSecond))

    def caculate(self):
        return self._cyclePrice * self.cycle