package com.supersavedriving.user.modular.system.service;
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import com.baomidou.mybatisplus.service.IService;
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import com.supersavedriving.user.modular.system.model.Coupon;
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import com.supersavedriving.user.modular.system.model.UserToCoupon;
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import com.supersavedriving.user.modular.system.warpper.CouponWarpper;
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import com.supersavedriving.user.modular.system.warpper.CouponsWarpper;
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import java.util.List;
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/**
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* @author zhibing.pu
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* @date 2023/3/2 14:21
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*/
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public interface IUserToCouponService extends IService<UserToCoupon> {
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/**
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* 获取可用优惠券
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* @param uid
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* @param price
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* @return
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* @throws Exception
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*/
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Coupon queryCoupon(Integer uid, Double price) throws Exception;
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/**
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* 获取订单支付页面的可用优惠券列表
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* @param uid
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* @return
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* @throws Exception
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*/
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List<CouponWarpper> queryPayCouponList(Integer uid, Double price) throws Exception;
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/**
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* 获取用户优惠券列表
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* @param uid
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* @param state
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* @param pageNum
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* @param pageSize
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* @return
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* @throws Exception
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*/
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List<CouponsWarpper> queryMyCoupons(Integer uid, Integer state, Integer pageNum, Integer pageSize) throws Exception;
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/**
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* 获取已使用优惠券数量
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* @param uid
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* @return
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*/
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Integer queryUsedCouponNum(Integer uid);
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}
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