package com.mzl.flower.web.v2.coupon;


import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.mzl.flower.base.BaseController;
import com.mzl.flower.base.R;
import com.mzl.flower.base.ReturnDataDTO;
import com.mzl.flower.config.exception.ValidationException;
import com.mzl.flower.dto.request.coupon.*;
import com.mzl.flower.dto.response.coupon.CouponTemplateActivyVO;
import com.mzl.flower.dto.response.coupon.CouponTemplatePointVO;
import com.mzl.flower.dto.response.coupon.CouponTemplateVO;
import com.mzl.flower.entity.coupon.CouponTemplateDO;
import com.mzl.flower.enums.*;
import com.mzl.flower.service.coupon.CouponTemplateService2;
import com.mzl.flower.utils.ConverterUtil;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.math.BigDecimal;
import java.time.LocalDateTime;


/**
 * @author @TaoJie
 * @since 2024-08-22
 */
@RestController
@RequestMapping("/api/v2/coupon/avtivy")
@Api(value = "优惠券管理-活动", tags = "优惠券管理-活动")
@Validated
public class CouponTemplateActivyController extends BaseController {

    @Autowired
    CouponTemplateService2 couponTemplateService;

    @PostMapping("")
    @ApiOperation(value = "新增", notes = "新增")
    public ResponseEntity<ReturnDataDTO> create(@Validated @RequestBody CreateCouponTemplateActivyDTO dto) {

        // 信息验证
        valid(dto);

        CreateCouponTemplateBO couponTemplateBO = new CreateCouponTemplateBO();
        BeanUtils.copyProperties(dto, couponTemplateBO);

        // 设置成活动优惠券
        couponTemplateBO.setCategory(CouponCategoryEnum.ACTIVITY.getStatus());
        couponTemplateBO.setGetUserType(CouponGetUserTypeEnum.ALL.getType());


        couponTemplateService.createCouponTemplate(couponTemplateBO);
        return returnData(R.SUCCESS.getCode(), null);


    }

    @PutMapping("/{id}")
    @ApiOperation(value = "修改", notes = "修改")
    public ResponseEntity<ReturnDataDTO> update(@PathVariable String id,@Validated @RequestBody CreateCouponTemplateActivyDTO dto) {

        // 手动设置id值
        dto.setId(id);
        // 信息验证
        valid(dto);

        CouponTemplateDO couponTemplateDO = couponTemplateService.getById(dto.getId());
        if (null == couponTemplateDO) {
            throw new ValidationException("优惠券不存在");
        }

        CreateCouponTemplateBO couponTemplateBO = new CreateCouponTemplateBO();
        BeanUtils.copyProperties(couponTemplateDO,couponTemplateBO);
        BeanUtils.copyProperties(dto, couponTemplateBO);

        // 设置成活动优惠券
        couponTemplateBO.setCategory(CouponCategoryEnum.ACTIVITY.getStatus());
        couponTemplateBO.setGetUserType(CouponGetUserTypeEnum.ALL.getType());

        couponTemplateService.updateCouponTemplate(couponTemplateBO);

        return returnData(R.SUCCESS.getCode(), null);
    }

    @DeleteMapping("/{id}")
    @ApiOperation(value = "删除", notes = "删除")
    public ResponseEntity<ReturnDataDTO> delete(@PathVariable String id) {

        CouponTemplateDO couponTemplateDO = couponTemplateService.getById(id);
        if (null == couponTemplateDO) {
            throw new ValidationException("优惠券不存在");
        }
        couponTemplateService.deleteCouponTemplate(id);
        return returnData(R.SUCCESS.getCode(), null);
    }

    @GetMapping("/{id}")
    @ApiOperation(value = "详情", notes = "详情")
    public ResponseEntity<ReturnDataDTO> get(@PathVariable String id) {
        CouponTemplateVO couponTemplateVO = couponTemplateService.getDetailById(id);
        return returnData(R.SUCCESS.getCode(), ConverterUtil.transObject(couponTemplateVO, CouponTemplateActivyVO.class));
    }

    @GetMapping("/page")
    @ApiOperation(value = "查询-分页", notes = "查询-分页")
    public ResponseEntity<ReturnDataDTO<Page<CouponTemplatePointVO>>> page(Page page, QueryCouponDTO dto) {
        // 设置只查询活动优惠券的
        dto.setCategory(CouponCategoryEnum.ACTIVITY.getStatus());
        Page<CouponTemplateVO> resultPage = couponTemplateService.getPage(page, dto);
        return returnData(R.SUCCESS.getCode(), ConverterUtil.transPage(resultPage, CouponTemplateActivyVO.class));
    }

    @GetMapping("/list")
    @ApiOperation(value = "查询-全部", notes = "查询-全部")
    public ResponseEntity<ReturnDataDTO<Page<CouponTemplateVO>>> list(QueryCouponDTO dto) {
        // 设置只查询活动优惠券的
        dto.setCategory(CouponCategoryEnum.ACTIVITY.getStatus());
        return returnData(R.SUCCESS.getCode(), ConverterUtil.transList(couponTemplateService.getList(dto), CouponTemplateActivyVO.class));
    }


    @PutMapping("/active/{id}")
    @ApiOperation(value = "发布", notes = "发布")
    public ResponseEntity<ReturnDataDTO> active(@PathVariable String id) {

        CouponTemplateDO couponTemplateDO = couponTemplateService.getById(id);
        if (null == couponTemplateDO) {
            throw new ValidationException("优惠券不存在");
        }

        // 判断当前时间是否在优惠券的领取时间范围内
        LocalDateTime now = LocalDateTime.now();
//        if (couponTemplateDO.getGetStartDate() != null && couponTemplateDO.getGetEndDate() != null) {
//            if (now.isBefore(couponTemplateDO.getGetStartDate()) || now.isAfter(couponTemplateDO.getGetEndDate())) {
//                throw new ValidationException("当前时间不在优惠券领取时间范围内，不能发布优惠券。");
//            }
//        } else {
//            throw new ValidationException("优惠券的领取时间未设置。");
//        }

        // 检查结束时间是否存在
        if (couponTemplateDO.getGetEndDate() != null) {
            // 如果当前时间小于结束时间，允许发布
            if (now.isAfter(couponTemplateDO.getGetEndDate())) {
                throw new ValidationException("当前时间已超过优惠券领取结束时间，不能发布优惠券。");
            }
        } else {
            throw new ValidationException("优惠券的领取结束时间未设置。");
        }


        couponTemplateService.activeCouponTemplate(id);

        return returnData(R.SUCCESS.getCode(), null);
    }

    @PutMapping("/expire/{id}")
    @ApiOperation(value = "下架", notes = "下架")
    public ResponseEntity<ReturnDataDTO> expire(@PathVariable String id) {

        CouponTemplateDO couponTemplateDO = couponTemplateService.getById(id);
        if (null == couponTemplateDO) {
            throw new ValidationException("优惠券不存在");
        }

        couponTemplateService.expireCouponTemplate(id);

        return returnData(R.SUCCESS.getCode(), null);
    }


    private void valid(CreateCouponTemplateActivyDTO dto){

//        if (StringUtils.isNotBlank(dto.getCouponDiscountType())
//                && dto.getCouponDiscountType().equals(CouponTypeEnum.DISCOUNT.getType())
//                && dto.getMinOrderAmount().compareTo(dto.getCouponDiscountValue()) < 0) {
//            throw new ValidationException("优惠券使用条件不能小于面值金额");
//        }
        if (StringUtils.isNotBlank(dto.getCouponDiscountType()) && dto.getCouponDiscountType().equals(CouponTypeEnum.DISCOUNT.getType())) {

            if(dto.getMinOrderAmount().compareTo(BigDecimal.ZERO)<=0){
                throw new ValidationException("优惠券使用条件不能小于0");
            }
            if(dto.getMinOrderAmount().compareTo(dto.getCouponDiscountValue()) < 0){
                throw new ValidationException("优惠券使用条件不能小于面值金额");
            }

        }

        if (StringUtils.isNotBlank(dto.getCouponDiscountType())
                && dto.getCouponDiscountType().equals(CouponTypeEnum.DISCOUNT.getType())
                && dto.getCouponDiscountValue().compareTo(BigDecimal.ZERO) <= 0) {
            throw new ValidationException("折扣金额必须大于0");
        }

        if (StringUtils.isNotBlank(dto.getCouponDiscountType())
                && dto.getCouponDiscountType().equals(CouponTypeEnum.ZERO.getType())
                && dto.getMinOrderAmount().compareTo(BigDecimal.ZERO) != 0) {
            throw new ValidationException("无门槛的订单金额必须为0");
        }

        // 领取后 固定时间
        if(StringUtils.isNotBlank(dto.getUsageType()) && dto.getUsageType().equals(CouponUsageTypeEnum.FIXED.getType()) ){
            // 如果使用时间是固定时间的话，那么固定时间的开始时间和结束时间就不能为空
            if(dto.getUsageStartDate()==null){
                throw new ValidationException("固定时间开始日期不能为空");
            }
            if(dto.getUsageEndDate()==null){
                throw new ValidationException("固定时间结束日期不能为空");
            }

            if(dto.getUsageStartDate().isAfter(dto.getUsageEndDate())){
                throw new ValidationException("固定时间开始时间不能大于结束日期");
            }


            // 固定时间的使用开始时间必须大于领取的结束时间

            if(null!=dto.getGetEndDate() && null!=dto.getUsageStartDate() && dto.getGetEndDate().isAfter(dto.getUsageStartDate())){
                throw new ValidationException("使用开始时间必须大于领取结束时间！");
            }


        }

        // 领取后 有效时间
        if(StringUtils.isNotBlank(dto.getUsageType()) && dto.getUsageType().equals(CouponUsageTypeEnum.GET_AFTER_TIME.getType())){
            // 如果使用时间是领取后有效时间的话，那么领取后的时间类型不能为空，且时间不能为空
            if(StringUtils.isBlank(dto.getUsageTimeType())){
                throw new ValidationException("领取后有效时间类型(COUPON_USAGE_TIME_TYPE)不能为空");
            }

            if(dto.getUsageTimeNum()==null){
                throw new ValidationException("领取后有效时间整数不能为空");
            }
            if(dto.getUsageTimeNum()<=0){
                throw new ValidationException("领取后有效时间整数需要大于0");
            }
        }

        // 用户获取的类型是首页领取的话
        if(StringUtils.isNotBlank(dto.getGetType()) && dto.getGetType().equals(dto.getGetType().equals(CouponGetTypeEnum.HOME.getType()))
        ){
            // 优惠券图片校验
            if(StringUtils.isBlank(dto.getImageUrl())){
                throw new ValidationException("优惠券图片不能为空");
            }
        }

        //

    }

}