package com.fjhx.sale.flow;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.dynamic.datasource.annotation.DSTransactional;
import com.baomidou.dynamic.datasource.toolkit.DynamicDataSourceContextHolder;
import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import com.baomidou.mybatisplus.core.toolkit.ObjectUtils;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.fjhx.common.constant.SourceConstant;
import com.fjhx.common.enums.CodingRuleEnum;
import com.fjhx.common.service.coding.CodingRuleService;
import com.fjhx.flow.core.FlowDelegate;
import com.fjhx.flow.core.FlowThreadLocalUtil;
import com.fjhx.flow.enums.HandleTypeEnum;
import com.fjhx.purchase.entity.purchase.enums.PurchaseDataResourceEnum;
import com.fjhx.purchase.entity.purchase.enums.PurchaseDetailStatusEnum;
import com.fjhx.purchase.entity.purchase.enums.PurchaseStatusEnum;
import com.fjhx.purchase.entity.purchase.po.Purchase;
import com.fjhx.purchase.entity.purchase.po.PurchaseDetail;
import com.fjhx.purchase.entity.purchase.po.PurchaseOtherFee;
import com.fjhx.purchase.entity.purchase.vo.PurchaseVo;
import com.fjhx.purchase.entity.subscribe.enums.SubscribeDetailStatusEnum;
import com.fjhx.purchase.entity.subscribe.po.SubscribeDetail;
import com.fjhx.purchase.service.purchase.PurchaseDetailService;
import com.fjhx.purchase.service.purchase.PurchaseOtherFeeService;
import com.fjhx.purchase.service.purchase.PurchaseService;
import com.fjhx.purchase.service.subscribe.SubscribeDetailService;
import com.fjhx.sale.entity.contract.po.ContractProduct;
import com.fjhx.sale.entity.sample.po.SampleProduct;
import com.fjhx.sale.service.contract.ContractProductService;
import com.fjhx.sale.service.sample.SampleProductService;
import com.ruoyi.common.core.domain.BasePo;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.SecurityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

/**
 * EHSD采购流程
 *
 * @Author:caozj
 * @DATE:2023/4/3 17:38
 */
@Component
public class PurchaseFlow extends FlowDelegate {

    @Autowired
    private PurchaseService purchaseService;

    @Autowired
    private SampleProductService sampleProductService;

    @Autowired
    private PurchaseDetailService purchaseDetailService;

    @Autowired
    private ContractProductService contractProductService;

    @Autowired
    private CodingRuleService codingRuleService;

    @Autowired
    private PurchaseOtherFeeService purchaseOtherFeeService;
    @Autowired
    private SubscribeDetailService subscribeDetailService;

    @Override
    public String getFlowKey() {
        return "purchase_flow";
    }

    /**
     * 发起流程
     *
     * @param flowId     流程ID
     * @param submitData 采购数据
     * @return
     */
    @Override
    public Long start(Long flowId, JSONObject submitData) {
        DynamicDataSourceContextHolder.push(SourceConstant.PURCHASE);
        PurchaseVo purchase = submitData.toJavaObject(PurchaseVo.class);
//        purchase.setCode(CodeEnum.PURCHASE.getCode());
        purchase.setCode(codingRuleService.createCode(CodingRuleEnum.PURCHASE.getKey(), null));
        purchase.setPurchaseStatus(PurchaseStatusEnum.UNDER_REVIEW.getKey());
        purchase.setFlowId(flowId);
        purchaseService.save(purchase);
        List<PurchaseDetail> purchaseDetailList = purchase.getPurchaseDetailList();
        if (CollectionUtils.isNotEmpty(purchaseDetailList)) {
            for (PurchaseDetail s : purchaseDetailList) {
                s.setPurchaseId(purchase.getId());
            }
            purchaseDetailService.saveBatch(purchaseDetailList);
            //修改申购明细的采购状态
            for (PurchaseDetail purchaseDetail : purchaseDetailList) {
                //如果来源是申购
                if (ObjectUtils.isEmpty(purchaseDetail.getDataResource())) {
                    //计算已经采购的数量
                    List<PurchaseDetail> purchaseDetails = purchaseDetailService.list(q -> q
                            .eq(PurchaseDetail::getSubscribeDetailId, purchaseDetail.getSubscribeDetailId())
                    );
                    BigDecimal pdCount = purchaseDetails.stream().map(PurchaseDetail::getCount).reduce(BigDecimal.ZERO, BigDecimal::add);
                    SubscribeDetail subscribeDetail = subscribeDetailService.getById(purchaseDetail.getSubscribeDetailId());
                    if (pdCount.compareTo(subscribeDetail.getCount()) >= 0) {
                        //修改为已采购
                        subscribeDetail.setStatus(SubscribeDetailStatusEnum.PURCHASED.getKey());
                    } else {
                        //修改为部分采购
                        subscribeDetail.setStatus(SubscribeDetailStatusEnum.LITT_PAID_AMOUNT.getKey());
                    }
                    subscribeDetailService.updateById(subscribeDetail);
                }
            }

        }
        //保存其他费用信息
        List<PurchaseOtherFee> otherFeeList = purchase.getOtherFeeList();
        if (ObjectUtils.isNotEmpty(otherFeeList)) {
            otherFeeList.forEach(item -> item.setPurchaseId(purchase.getId()));
            purchaseOtherFeeService.saveBatch(otherFeeList);
        }
        DynamicDataSourceContextHolder.poll();
        return purchase.getId();
    }

    /**
     * 结束流程
     *
     * @param flowId     流程ID
     * @param businessId 业务ID
     * @param submitData 数据
     */
    @Override
    @DSTransactional
    public void end(Long flowId, Long businessId, JSONObject submitData) {
        //通过业务ID查询采购数据
        Purchase purchase = purchaseService.getById(businessId);
        if (ObjectUtils.isEmpty(purchase)) {
            throw new ServiceException("采购单不存在");
        }
        //查询采购产品
        List<PurchaseDetail> purchaseDetailList = purchaseDetailService.list(Wrappers.<PurchaseDetail>query().lambda().eq(PurchaseDetail::getPurchaseId, businessId));
        List<ContractProduct> upContractProduct = new ArrayList<>();
        List<SampleProduct> upSampleProduct = new ArrayList<>();
        for (PurchaseDetail p : purchaseDetailList) {
            if (ObjectUtils.isNotEmpty(p.getDataResourceId()) &&
                    p.getDataResource() == PurchaseDataResourceEnum.DATA_RESOURCE_1.getKey()) {//如果采购的是外销合同
                ContractProduct contractProduct = contractProductService.getById(p.getDataResourceId());
                BigDecimal expendQuantity = contractProduct.getExpendQuantity().subtract(p.getCount());
                if (expendQuantity.compareTo(BigDecimal.ZERO) < 0) {
                    //外销合同-交接单采购 如果采购数量大于大于合同数量 将待处理数量改为0
                    expendQuantity = BigDecimal.ZERO;
                }
                contractProduct.setExpendQuantity(expendQuantity);
                upContractProduct.add(contractProduct);
            }
            if (ObjectUtils.isNotEmpty(p.getDataResourceId()) &&
                    p.getDataResource() == PurchaseDataResourceEnum.DATA_RESOURCE_2.getKey()) {//如果采购的是样品单
                SampleProduct sampleProduct = sampleProductService.getById(p.getDataResourceId());
                BigDecimal expendQuantity = sampleProduct.getExpendQuantity().subtract(p.getCount());
                if (expendQuantity.compareTo(BigDecimal.ZERO) < 1) {//小于0不让继续执行
                    throw new ServiceException("采购数量不得大于合同剩余采购数量");
                }
                sampleProduct.setExpendQuantity(expendQuantity);
                upSampleProduct.add(sampleProduct);
            }
        }
        if (CollectionUtils.isNotEmpty(upContractProduct)) {//扣减销售合同数量
            contractProductService.updateBatchById(upContractProduct);
        }
        if (CollectionUtils.isNotEmpty(upSampleProduct)) {//扣减样品单数量
            sampleProductService.updateBatchById(upSampleProduct);
        }
        //修改采购状态为审批通过
        purchase.setPurchaseStatus(PurchaseStatusEnum.PASS.getKey());
        purchase.setApprovedDate(new Date());
        purchaseService.updateById(purchase);
        //修改采购明细为待采购
        PurchaseDetail detail = new PurchaseDetail();
        detail.setStatus(PurchaseDetailStatusEnum.PASS.getKey());
        purchaseDetailService.update(detail, Wrappers.<PurchaseDetail>query()
                .lambda().eq(PurchaseDetail::getPurchaseId, purchase.getId()));
    }

    /**
     * 驳回方法
     */
    public void reject() {
        if (HandleTypeEnum.REJECT.equals(FlowThreadLocalUtil.getHandleTypeEnum())) {
            purchaseService.update(q -> q
                    .eq(Purchase::getId, FlowThreadLocalUtil.getBusinessId())
                    .set(Purchase::getPurchaseStatus, 20)
                    .set(Purchase::getUpdateTime, new Date())
                    .set(BasePo::getUpdateUser, SecurityUtils.getUserId())
            );
        }
    }

}