package com.cyksj.web.controller.coupon;

import cn.hutool.core.date.DateTime;
import cn.hutool.core.date.DateUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.cyksj.common.annotation.NoSubmit;
import com.cyksj.common.exception.BusinessRuntimeException;
import com.cyksj.common.util.Jsons;
import com.cyksj.dto.Result;
import com.cyksj.enums.GatewayResponse;
import com.cyksj.mapper.manage.coupon.CouponMapper;
import com.cyksj.mapper.manage.coupon.CouponRecommendMapper;
import com.cyksj.mapper.manage.coupon.CouponSkuMapper;
import com.cyksj.mapper.manage.coupon.CouponUserMapper;
import com.cyksj.model.dto.CouponPopularizeDto;
import com.cyksj.model.entity.Coupon;
import com.cyksj.model.entity.CouponSku;
import com.cyksj.model.request.CouponCollectReq;
import com.cyksj.model.views.*;
import com.cyksj.redis.RedisService;
import com.cyksj.service.coupon.CouponFontService;
import com.cyksj.web.util.StpUserUtil;
import com.ejlchina.searcher.BeanSearcher;
import com.ejlchina.searcher.param.Operator;
import com.ejlchina.searcher.util.MapUtils;
import lombok.RequiredArgsConstructor;
import org.springframework.web.bind.annotation.*;

import java.math.BigDecimal;
import java.util.List;
import java.util.stream.Collectors;

/*
 *项目名: netflix
 *文件名: CouponFrontController
 *创建者: JavaZou
 *创建时间:2022/11/18 10:56
 */
@RestController
@RequestMapping("/applet/coupon")
@RequiredArgsConstructor
public class CouponFrontController {
	private final CouponUserMapper couponUserMapper;

	private final BeanSearcher beanSearcher;

	private final CouponFontService couponFontService;

	private final RedisService redisService;

	private final CouponSkuMapper couponSkuMapper;

	private final CouponMapper couponMapper;

	private final CouponRecommendMapper couponRecommendMapper;

	/**
	 * 优惠券领取中心列表
	 */
	@GetMapping("/center/list")
	public Result<Page<CouponActiveView>> couponCenterList(@RequestParam(defaultValue = "1") Long start, @RequestParam(defaultValue = "5") Long limit) {
		Long userId = StpUserUtil.getLoginIdAsLong();
		Page<CouponActiveView> page = couponUserMapper.couponCenterList(userId, new Page<>(start, limit));
		page.getRecords().forEach(data -> {
			String str = couponSkuMapper.selectGoodsSkuStr(data.getCouponId());
			data.setGoodsSkuStr(str.replaceAll(",", "/").replaceAll(";", ""));
			List<CouponSkuView> couponSkus = couponSkuMapper.getGoodsSkuByCouponId(data.getCouponId());
			try {
				data.setGoodsSkuIds(Jsons.toJson(couponSkus));
			} catch (Exception e) {

			}
		});
		return GatewayResponse.SUCCESS.newBuilder().toResult(page);
	}

	/**
	 * 个人优惠券列表
	 */
	@GetMapping("/personal/list")
	public Result<Page<CouponUserView>> couponPersonalList(@RequestParam(defaultValue = "1") Long start, @RequestParam(defaultValue = "5") Long limit) {
		Long userId = StpUserUtil.getLoginIdAsLong();
		Page<CouponUserView> page = couponUserMapper.couponPersonalList(userId, new Page<>(start, limit));
		page.getRecords().forEach(data -> {
			String str = couponSkuMapper.selectGoodsSkuStr(data.getCouponId());
			data.setGoodsSkuStr(str.replaceAll(",", "/").replaceAll(";", ""));
			List<CouponSkuView> couponSkus = couponSkuMapper.getGoodsSkuByCouponId(data.getCouponId());
			try {
				data.setGoodsSkuIds(Jsons.toJson(couponSkus));
			} catch (Exception e) {

			}
		});
		return GatewayResponse.SUCCESS.newBuilder().toResult(page);
	}

	/**
	 * 可用优惠券展示数量
	 */
	@GetMapping("/available/num")
	public Result<Integer> availableCouponNum(Long skuId, Boolean isRenew) {
		Long userId = StpUserUtil.getLoginIdAsLong();
		Long goodsId = null;
		//实物还是虚物
		GoodsDonSkuView goodsDonSkuView = beanSearcher.searchFirst(GoodsDonSkuView.class, MapUtils.builder().field(GoodsDonSkuView::getSkuId, skuId).op(Operator.Equal).build());
		if (goodsDonSkuView == null) {
			throw BusinessRuntimeException.getInstance("规格不存在");
		}
		BigDecimal skuMoney = goodsDonSkuView.getMoney();
		if (goodsDonSkuView.getType() == 2) {
			goodsId = goodsDonSkuView.getGoodsId();
		}
		List<CouponUserView> couponUserViews = couponUserMapper.countAvailableCouponList(goodsId, skuId, userId, isRenew);
		Integer total = couponUserViews.size();
		if (goodsDonSkuView.getType() == 2) {
			List<CouponUserView> collect = couponUserViews.stream().filter(coupon -> {
				if (coupon.getType() == Coupon.Type.reduce && skuMoney.compareTo(coupon.getReduceCondition()) < 0) {
					return false;
				}
				return true;
			}).collect(Collectors.toList());
			total = collect.size();
		}
		return GatewayResponse.SUCCESS.newBuilder().toResult(total);
	}

	@GetMapping("/available/list")
	public Result<Page<CouponUserView>> availableCouponList(Long skuId, Long couponId, Boolean isRenew, @RequestParam(defaultValue = "1") Long start, @RequestParam(defaultValue = "5") Long limit) {
		Long userId = StpUserUtil.getLoginIdAsLong();
		Page<CouponUserView> couponActiveViewList = couponFontService.getAvailableCouponList(skuId, couponId, userId, isRenew, start, limit);
		return GatewayResponse.SUCCESS.newBuilder().toResult(couponActiveViewList);
	}

	/**
	 * 推荐优惠券列表
	 */
	@GetMapping("/recommend/list")
	public Result<Page<CouponRecommendView>> getRecommendList(@RequestParam(defaultValue = "1") Long start, @RequestParam(defaultValue = "5") Long limit) {
		Long userId = StpUserUtil.getLoginIdAsLong();
		CouponNewUserView couponNewUserView = beanSearcher.searchFirst(CouponNewUserView.class, MapUtils.builder().field(CouponNewUserView::getUserId, userId).op(Operator.Equal).build());
		Boolean isNewUser = true;
		if (couponNewUserView != null) {
			isNewUser = false;
		}
		Page<CouponRecommendView> page = couponRecommendMapper.getRecommendCouponViewList(userId, isNewUser, new Page<>(start, limit));
		page.getRecords().forEach(data -> {
			if (data.getCouponStatus() == CouponActiveView.CouponStatus.received) {
				data.setValidStartTime(data.getUserValidStartTime());
				data.setValidEndTime(data.getUserValidEndTime());
			}
			String str = couponSkuMapper.selectGoodsSkuStr(data.getCouponId());
			data.setGoodsSkuStr(str.replaceAll(",", "/").replaceAll(";", ""));
			List<CouponSkuView> couponSkus = couponSkuMapper.getGoodsSkuByCouponId(data.getCouponId());
			try {
				data.setGoodsSkuIds(Jsons.toJson(couponSkus));
			} catch (Exception e) {

			}
		});
		return GatewayResponse.SUCCESS.newBuilder().toResult(page);
	}

	/**
	 * 一键领取推荐优惠券
	 */
	@PostMapping("/collect/recommend/whole")
	@NoSubmit
	public Result<String> collectWholeRecommendCoupon() {
		Long userId = StpUserUtil.getLoginIdAsLong();
		couponFontService.collectWholeRecommendCoupon(userId);
		return GatewayResponse.SUCCESS.newBuilder().toResult("领取成功");
	}

	/**
	 * 今日推荐优惠券弹窗已弹
	 */
	@GetMapping("/get/recommend/appear")
	public Result<Boolean> recommendIsAppear() {
		Long userId = StpUserUtil.getLoginIdAsLong();
		String zero = DateUtil.beginOfDay(DateTime.now()).toString();
		Object exists = redisService.get(RedisService.key.RECOMMEND_COUPON_DAY.getNameFormat(String.format("%s-%s", zero, userId)));
		if (exists == null) {
			redisService.set(RedisService.key.RECOMMEND_COUPON_DAY.getNameFormat(String.format("%s-%s", zero, userId)), userId, RedisService.key.RECOMMEND_COUPON_DAY.getTimeout());
		}
		return GatewayResponse.SUCCESS.newBuilder().toResult(exists == null ? false : true);
	}

	/**
	 * 领取优惠券
	 */
	@PostMapping("/collect")
	public Result<String> collectCoupon(@RequestBody CouponCollectReq couponCollectReq) {
		Long userId = StpUserUtil.getLoginIdAsLong();
		couponFontService.collectCoupon(couponCollectReq, userId);
		return GatewayResponse.SUCCESS.newBuilder().toResult("领取优惠券成功");
	}

	/**
	 * 领取推荐优惠券
	 */
	@PostMapping("/recommend/collect")
	public Result<String> collectRecommendCoupon(@RequestBody CouponCollectReq couponCollectReq) {
		Long userId = StpUserUtil.getLoginIdAsLong();
		couponFontService.collectRecommendCoupon(couponCollectReq, userId);
		return GatewayResponse.SUCCESS.newBuilder().toResult("领取优惠券成功");
	}

	/**
	 * 查询有可以领取的推荐优惠券
	 */
	@GetMapping("/recommend/collect/num")
	public Result<Integer> collectRecommendCouponNum() {
		Long userId = StpUserUtil.getLoginIdAsLong();
		CouponNewUserView couponNewUserView = beanSearcher.searchFirst(CouponNewUserView.class, MapUtils.builder().field(CouponNewUserView::getUserId, userId).op(Operator.Equal).build());
		Boolean isNewUser = true;
		if (couponNewUserView != null) {
			isNewUser = false;
		}
		Integer num = couponFontService.collectRecommendCouponNum(userId, isNewUser);
		return GatewayResponse.SUCCESS.newBuilder().toResult(num);
	}


	/**
	 * 优惠码详情
	 */
	@GetMapping("/get/exCode/detail")
	public Result<CouponPopularizeDto> getExCodeDetail(Long skuId, String exCode, Boolean isRenew) {
		Long userId = StpUserUtil.getLoginIdAsLong();
		GoodsDonSkuView goodsDonSkuView = beanSearcher.searchFirst(GoodsDonSkuView.class, MapUtils.builder().field(GoodsDonSkuView::getSkuId, skuId).op(Operator.Equal).build());
		if (goodsDonSkuView == null) {
			throw BusinessRuntimeException.getInstance("该规格不存在");
		}
		BigDecimal skuMoney = goodsDonSkuView.getMoney();
		if (goodsDonSkuView.getType() == 2) {
			throw BusinessRuntimeException.getInstance("实物不支持使用优惠码");
		}
		CouponPopularizeDto dto = couponMapper.checkExCode(exCode);
		if (dto == null) {
			throw BusinessRuntimeException.getInstance("该优惠码不存在");
		}
		if (dto.getScope() == Coupon.Scope.newUser) {
			CouponNewUserView couponNewUserView = beanSearcher.searchFirst(CouponNewUserView.class, MapUtils.builder().field(CouponNewUserView::getUserId, userId).op(Operator.Equal).build());
			if (couponNewUserView != null) {
				throw BusinessRuntimeException.getInstance("该优惠码只适用于新用户");
			}
		}
		if (isRenew != null && isRenew) {
			Coupon.UseScope useScope = dto.getUseScope();
			if (useScope == Coupon.UseScope.orders) {
				throw BusinessRuntimeException.getInstance("该优惠码续费时不可使用");
			}
		}
		if (isRenew == null && !isRenew) {
			Coupon.UseScope useScope = dto.getUseScope();
			if (useScope == Coupon.UseScope.renew) {
				throw BusinessRuntimeException.getInstance("该优惠码下单时不可使用");
			}
		}
		if (dto.getIsValidTime() && dto.getValidStartTime().after(DateTime.now())) {
			throw BusinessRuntimeException.getInstance("该优惠码待生效");
		}
		if (dto.getIsValidTime() && dto.getValidEndTime().before(DateTime.now())) {
			throw BusinessRuntimeException.getInstance("该优惠码已失效");
		}
		CouponSku couponSku = couponSkuMapper.selectOne(Wrappers.lambdaQuery(CouponSku.class)
				.eq(CouponSku::getSkuId, skuId)
				.eq(CouponSku::getCouponId, dto.getCouponId())
				.select(CouponSku::getId).last("limit 1"));
		if (couponSku == null) {
			throw BusinessRuntimeException.getInstance("该优惠码不适用于该规格");
		}
		if (goodsDonSkuView.getType() == 2) {
			if (dto.getType() == Coupon.Type.reduce && skuMoney.compareTo(dto.getReduceCondition()) < 0) {
				throw BusinessRuntimeException.getInstance(String.format("满%s可用", dto.getReduceCondition().divide(BigDecimal.valueOf(100))));
			}
		}
		return GatewayResponse.SUCCESS.newBuilder().toResult(dto);
	}

	/**
	 * 查询优惠券
	 */
	@GetMapping("/get/couponList")
	public Result<List<CouponView>> getCouponList(@RequestParam(value = "couponIds") List<Long> couponIds) {
		if (couponIds.isEmpty()) {
			return GatewayResponse.SUCCESS.newBuilder().toResult();
		}
		List<CouponView> couponViews = beanSearcher.searchAll(CouponView.class, MapUtils.builder().field(CouponView::getId, couponIds).op(Operator.InList).build());
		return GatewayResponse.SUCCESS.newBuilder().toResult(couponViews);
	}
}