package jnpf.limsService.impl;

import jnpf.audit.sdk.annotation.AuditLog;

import jnpf.base.UserInfo;
import jnpf.base.service.SuperServiceImpl;
import jnpf.exception.DataException;
import jnpf.limsEntity.LimsJieyangTuihuiEntity;
import jnpf.limsMapper.LimsJieyangTuihuiMapper;
import jnpf.limsService.LimsJieyangTuihuiService;
import jnpf.util.UserProvider;
import org.springframework.stereotype.Service;

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

@Service
public class LimsJieyangTuihuiServiceImpl
        extends SuperServiceImpl<LimsJieyangTuihuiMapper, LimsJieyangTuihuiEntity>
        implements LimsJieyangTuihuiService {

    @Override
    @AuditLog(action = "CREATE", label = "样品退回记录新增", bizType = "JIEYANG",
            bizCodeExpr = "#entity.jianyanLiushuihao", targetTable = "lims_jieyang_tuihui",
            targetIdExpr = "#result?.id", diff = true, entityClass = LimsJieyangTuihuiEntity.class)
    public LimsJieyangTuihuiEntity createTuihui(LimsJieyangTuihuiEntity entity) {
        if (entity.getJianyanLiushuihao() == null || entity.getJianyanLiushuihao().isEmpty()) {
            throw new DataException("检验流水号不能为空");
        }
        if (entity.getJieyangBanzuId() == null || entity.getJieyangBanzuId().isEmpty()) {
            throw new DataException("接样班组 id 不能为空");
        }
        BigDecimal tuihui = parsePositive(entity.getTuihuiShuliang(), "退回数量");

        BigDecimal ketuihui = parseOptional(entity.getKetuihuiShuliang());
        if (ketuihui != null && tuihui.compareTo(ketuihui) > 0) {
            throw new DataException("退回数量不能大于可退回数量");
        }

        // 结余数量：前端若未传，则按 (ketuihui - tuihui) 兜底
        if ((entity.getJieyuShuliang() == null || entity.getJieyuShuliang().isEmpty())
                && ketuihui != null) {
            entity.setJieyuShuliang(ketuihui.subtract(tuihui).toPlainString());
        }

        if (entity.getCunruRen() == null || entity.getCunruRen().isEmpty()) {
            UserInfo userInfo = UserProvider.getUser();
            entity.setCunruRen(userInfo.getUserId());
        }
        if (entity.getCunruShijian() == null) {
            entity.setCunruShijian(new Date());
        }

        entity.setDeleteMark(null);
        entity.setDeleteTime(null);
        entity.setDeleteUserId(null);

        if (!this.save(entity)) {
            throw new DataException("退回记录保存失败");
        }
        return entity;
    }

    private BigDecimal parsePositive(String value, String fieldName) {
        if (value == null || value.isEmpty()) {
            throw new DataException(fieldName + "不能为空");
        }
        try {
            BigDecimal v = new BigDecimal(value.trim());
            if (v.signum() <= 0) {
                throw new DataException(fieldName + "必须大于 0");
            }
            return v;
        } catch (NumberFormatException e) {
            throw new DataException(fieldName + "必须是数字");
        }
    }

    private BigDecimal parseOptional(String value) {
        if (value == null || value.isEmpty()) {
            return null;
        }
        try {
            return new BigDecimal(value.trim());
        } catch (NumberFormatException e) {
            return null;
        }
    }
}