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

from mongoengine import StringField, DateTimeField, IntField, ObjectIdField, Q, DoesNotExist, BooleanField, ListField

from apps.web.constant import INSURANCE_CATEGORY
from apps.web.core.db import Searchable, MonetaryField
from apps.web.dealer.models import Dealer
from apps.web.device.models import Group
from apps.web.user.models import MyUser, RechargeRecord


class InsuranceOrder(Searchable):
    """
    用户的上保订单
    """
    # 保险种类的ID
    insuranceId = StringField(verbose_name = u"母单")
    name = StringField(verbose_name=u"保险名称")
    # 用户的投保单号
    orderNo = StringField(verbose_name = u"投保单号")

    # 用户的信息
    openId = StringField(verbose_name = u"用户")
    ownerId = StringField(verbose_name = u"经销商")
    devNo = StringField(verbose_name = u"设备IMEI")
    logicalCode = StringField(verbose_name = u"设备编号")
    groupId = StringField(verbose_name = "投保地址")

    # 实际支付的保单的价格
    money = MonetaryField(verbose_name = u"支付")

    # 可以报险的时间段 36小时
    startTime = DateTimeField(verbose_name = u"起始时间")
    endTime = DateTimeField(verbose_name = u"结束时间")

    # 有效情况 退款后保单失效
    effective = IntField(verbose_name = u"有效", choices = (0, 1), default = 1)
    # 关联的支付订单
    rechargeRcdId = ObjectIdField(verbose_name = u"支付订单")

    # 报险
    applyTime = DateTimeField(verbose_name = u"报险时间")
    phoneNumber = StringField(verbose_name = u"联系电话")

    # 保单的创建时间
    dateTimeAdded = DateTimeField(verbose_name = u"创建时间", default = datetime.datetime.now)

    # meta = {
    #     'collection': 'InsuranceOrder'
    # }

    @staticmethod
    def get_insurance_order_no(insurance):
        """
        用户的投保单号 目前使用大保单号进行显示
        :param insurance:
        :return:
        """
        return insurance.insuranceNo

    @classmethod
    def create_by_recharge(cls, rechargeOrder, insurance):  # type:(RechargeRecord, Insurance) -> InsuranceOrder
        """
        创建用户的保单
        :param rechargeOrder:
        :param insurance:
        :return:
        """
        order = cls(
            insuranceId = str(insurance.id),
            name = insurance.name,
            openId = rechargeOrder.openId,
            ownerId = rechargeOrder.ownerId,
            devNo = rechargeOrder.devNo,
            logicalCode = rechargeOrder.logicalCode,
            groupId = rechargeOrder.groupId,

            money = rechargeOrder.money,

            startTime = rechargeOrder.dateTimeAdded,
            endTime = rechargeOrder.dateTimeAdded + datetime.timedelta(hours = insurance.validTime),

            rechargeRcdId = rechargeOrder.id
        )

        order.orderNo = cls.get_insurance_order_no(insurance)
        return order.save()

    @classmethod
    def get_user_effective_orders(cls, openId):  # type:(str) -> QuerySet
        """
        获取用户 未进行退款的 保险订单
        :param openId:
        :return:
        """
        return cls.objects.filter(openId = openId, effective = 1)

    @classmethod
    def get_user_not_effective_orders(cls, openId):
        """
        获取用户已经完全失效的保险订单（退款的）
        """
        return cls.objects.filter(openId = openId, effective = 0)

    @classmethod
    def get_user_legal_order(cls, openId):
        """
        获取用户可以报险的保险单
        """
        nowTime = datetime.datetime.now()
        return cls.get_user_effective_orders(openId).filter(
            endTime__gte=nowTime,
            startTime__lte=nowTime
        )

    @classmethod
    def get_user_expired_order(cls, openId):
        """
        获取用户 已经失去报险资格的保险单
        """
        nowTime = datetime.datetime.now()
        return cls.get_user_effective_orders(openId).filter(
            Q(endTime__lt=nowTime) | Q(startTime__gt=nowTime)
        )

    @classmethod
    def get_user_effective_by_recharge_order(cls, rechargeOrder):
        """
        通过充值订单 查询相应的保险单 有效的
        """
        return cls.get_user_legal_order(rechargeOrder.openId).filter(rechargeRcdId = rechargeOrder.id).first()

    @classmethod
    def apply(cls, orderId, phoneNumber, openId):
        """
        报险
        :param orderId:
        :param phoneNumber:
        :param openId:
        :return:
        """
        result = cls.objects.filter(
            id = orderId,
            openId = openId
        ).filter(
            effective = 1,
            applyTime = None,
            phoneNumber = None
        ).update(
            applyTime = datetime.datetime.now(),
            phoneNumber = phoneNumber
        )

        return result

    @property
    def dealer(self):
        return Dealer.get_dealer(self.ownerId)

    @property
    def group(self):
        return Group.get_group(self.groupId)

    @property
    def user(self):
        return MyUser.objects.get(groupId = self.groupId, openId = self.openId)

    @property
    def rechargeOrder(self):
        return RechargeRecord.objects.get(id = self.rechargeRcdId)

    @property
    def insurance(self):
        try:
            insurance = Insurance.objects.get(id = self.insuranceId)
        except DoesNotExist:
            return None

        return insurance

    def cancel(self):
        """
        一般是退款后调用 将订单置为失效状态
        :return:
        """
        self.effective = 0
        self.save()

    def to_dict(self):
        return {
            "id": str(self.id),
            "name": self.name,
            "openId": self.openId,
            "ownerId": self.ownerId,
            "devNo": self.devNo,
            "logicalCode": self.logicalCode,
            "groupId": self.groupId,

            "money": self.money,

            "startTime": self.startTime.strftime("%Y-%m-%d %H:%M:%S"),
            "endTime": self.endTime.strftime("%Y-%m-%d %H:%M:%S"),

            "dateTimeAdded": self.dateTimeAdded.strftime("%Y-%m-%d %H:%M:%S"),
            "applyTime": self.applyTime.strftime("%Y-%m-%d %H:%M:%S") if self.applyTime else "",
            "phoneNumber": self.phoneNumber or ""
        }


from mongoengine.signals import post_save


# 检测订单是否变为失效或者变为生效
def save_success_message(sender, document, created):  # type:(InsuranceOrder.__class__, InsuranceOrder, bool) -> None
    from taskmanager.mediator import task_caller

    # 保单刚刚生效 发送通知给用户 保单生效
    if created:
        task_caller("notify_insurance_order_subscribe", orderId = str(document.id))
        return

    # 保单被取消的时候 发送 保单失效给用户
    if not created and not document.effective:
        task_caller("notify_insurance_order_cancel", orderId = str(document.id))
        return


# 信号注册
post_save.connect(receiver = save_success_message, sender = InsuranceOrder)


class Insurance(Searchable):
    """
    用户充电险
    目前
    """
    # 大保单的保单号
    insuranceNo = StringField(verbose_name = u"保单号", required = True)
    # 对外显示的名称
    name = StringField(verbose_name = u"保险的名称")
    # 单次购买定价
    price = MonetaryField(verbose_name = u"价格", required = True)
    # 报险的过期时间
    validTime = IntField(verbose_name = u"有效期", default = 12)
    # 是否在售
    onSale = BooleanField(verbose_name = u"销售状态", default = False)

    # 保险的种类 （目前只有充电险、后续可能会有骑行险或者是偷盗险一类的）
    category = StringField(verbose_name = u"种类", choices = INSURANCE_CATEGORY.choices())

    # 支持的主设备类型 某些不支持的直接排除
    supportMajorDeviceType = ListField(verbose_name = u"支持的主设备类型", default = [u"充电桩"])

    @classmethod
    def get_on_sale_by_id(cls, _id):
        try:
            obj = cls.objects.get(id = _id, onSale = True)
        except DoesNotExist:
            return None
        return obj

    @classmethod
    def get_on_sale_by_category(cls, category):
        return cls.objects.filter(onSale=True, category=category).first()

    @property
    def categoryName(self):
        if self.category == INSURANCE_CATEGORY.CHARGE:
            return u"充电险"
        if self.category == INSURANCE_CATEGORY.STOLEN:
            return u"偷盗险"
        if self.category == INSURANCE_CATEGORY.CYCLE:
            return u"骑行险"

        return

    def to_dict(self):
        return {
            "id": str(self.id),
            "price": self.price,
            "validTime": self.validTime
        }