package cn.iocoder.yudao.module.mes.service.pro.alternativeplan;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.StrUtil;
import cn.iocoder.yudao.framework.common.exception.ServiceException;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
import cn.iocoder.yudao.module.mes.controller.admin.pro.alternativeplan.vo.MesProAlternativePlanImportExcelVO;
import cn.iocoder.yudao.module.mes.controller.admin.pro.alternativeplan.vo.MesProAlternativePlanImportRespVO;
import cn.iocoder.yudao.module.mes.controller.admin.pro.alternativeplan.vo.MesProAlternativePlanPageReqVO;
import cn.iocoder.yudao.module.mes.controller.admin.pro.alternativeplan.vo.MesProAlternativePlanSaveReqVO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.alternativeplan.MesProAlternativePlanDO;
import cn.iocoder.yudao.module.mes.dal.dataobject.pro.process.MesProProcessDO;
import cn.iocoder.yudao.module.mes.dal.mysql.pro.alternativeplan.MesProAlternativePlanMapper;
import cn.iocoder.yudao.module.mes.service.pro.process.MesProProcessService;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.annotation.Validated;

import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.atomic.AtomicInteger;

import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.MES_PRO_ALTERNATIVE_PLAN_IMPORT_LIST_IS_EMPTY;
import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.MES_PRO_ALTERNATIVE_PLAN_NOT_EXISTS;
import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.MES_PRO_ALTERNATIVE_PLAN_NOT_PREPARE;

/**
 * MES 作业替代方案 Service 实现类
 *
 * @author xiaoyi
 */
@Service
@Validated
public class MesProAlternativePlanServiceImpl implements MesProAlternativePlanService {

    private static final Integer STATUS_DRAFT = 0;
    private static final Integer STATUS_PUBLISHED = 10;

    @Resource
    private MesProAlternativePlanMapper planMapper;

    @Resource
    private MesProProcessService processService;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Long createPlan(MesProAlternativePlanSaveReqVO createReqVO) {
        MesProAlternativePlanDO plan = BeanUtils.toBean(createReqVO, MesProAlternativePlanDO.class, req -> req
                .setCode(generateCode())
                .setStatus(STATUS_DRAFT));
        planMapper.insert(plan);
        return plan.getId();
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updatePlan(MesProAlternativePlanSaveReqVO updateReqVO) {
        MesProAlternativePlanDO oldPlan = validatePlanCanModify(updateReqVO.getId());
        MesProAlternativePlanDO updateObj = BeanUtils.toBean(updateReqVO, MesProAlternativePlanDO.class, req -> req
                .setCode(oldPlan.getCode())
                .setStatus(oldPlan.getStatus()));
        planMapper.updateById(updateObj);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void deletePlan(Collection<Long> ids) {
        if (CollUtil.isEmpty(ids)) {
            return;
        }
        for (Long id : ids) {
            validatePlanCanModify(id);
            planMapper.deleteById(id);
        }
    }

    @Override
    public MesProAlternativePlanDO getPlan(Long id) {
        return planMapper.selectById(id);
    }

    @Override
    public PageResult<MesProAlternativePlanDO> getPlanPage(MesProAlternativePlanPageReqVO pageReqVO) {
        return planMapper.selectPage(pageReqVO);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void publishPlan(Long id) {
        MesProAlternativePlanDO plan = validatePlanExists(id);
        if (!Objects.equals(plan.getStatus(), STATUS_DRAFT)) {
            throw exception(MES_PRO_ALTERNATIVE_PLAN_NOT_PREPARE);
        }
        planMapper.updateById(new MesProAlternativePlanDO().setId(id).setStatus(STATUS_PUBLISHED));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public MesProAlternativePlanImportRespVO importPlanList(List<MesProAlternativePlanImportExcelVO> importList,
                                                            boolean updateSupport) {
        if (CollUtil.isEmpty(importList)) {
            throw exception(MES_PRO_ALTERNATIVE_PLAN_IMPORT_LIST_IS_EMPTY);
        }
        MesProAlternativePlanImportRespVO respVO = MesProAlternativePlanImportRespVO.builder()
                .createNames(new ArrayList<>()).updateNames(new ArrayList<>())
                .failureNames(new LinkedHashMap<>()).build();
        AtomicInteger index = new AtomicInteger(1);
        importList.forEach(importItem -> {
            int currentIndex = index.getAndIncrement();
            String key = StrUtil.blankToDefault(importItem.getName(), "第 " + currentIndex + " 行");
            if (StrUtil.isBlank(importItem.getName())) {
                respVO.getFailureNames().put(key, "方案名称不能为空");
                return;
            }
            Long mainProcessId = null;
            if (StrUtil.isNotBlank(importItem.getMainProcessName())) {
                MesProProcessDO process = processService.getProcessByName(importItem.getMainProcessName().trim());
                if (process == null) {
                    respVO.getFailureNames().put(key, "主工序名称[" + importItem.getMainProcessName() + "]不存在");
                    return;
                }
                mainProcessId = process.getId();
            }
            Long altProcessId = null;
            if (StrUtil.isNotBlank(importItem.getAltProcessName())) {
                MesProProcessDO process = processService.getProcessByName(importItem.getAltProcessName().trim());
                if (process == null) {
                    respVO.getFailureNames().put(key, "替代工序名称[" + importItem.getAltProcessName() + "]不存在");
                    return;
                }
                altProcessId = process.getId();
            }
            MesProAlternativePlanSaveReqVO reqVO = BeanUtils.toBean(importItem, MesProAlternativePlanSaveReqVO.class);
            reqVO.setMainProcessId(mainProcessId);
            reqVO.setAltProcessId(altProcessId);
            MesProAlternativePlanDO existPlan = planMapper.selectByName(importItem.getName());
            try {
                if (existPlan == null) {
                    reqVO.setId(null);
                    createPlan(reqVO);
                    respVO.getCreateNames().add(importItem.getName());
                } else if (updateSupport) {
                    reqVO.setId(existPlan.getId());
                    updatePlan(reqVO);
                    respVO.getUpdateNames().add(importItem.getName());
                } else {
                    respVO.getFailureNames().put(key, "方案名称已存在");
                }
            } catch (ServiceException e) {
                respVO.getFailureNames().put(key, e.getMessage());
            }
        });
        return respVO;
    }

    private String generateCode() {
        return "TD" + DateUtil.format(LocalDateTime.now(), "yyyyMMddHHmmss")
                + String.format("%03d", (int) (Math.random() * 1000));
    }

    private MesProAlternativePlanDO validatePlanExists(Long id) {
        MesProAlternativePlanDO plan = planMapper.selectById(id);
        if (plan == null) {
            throw exception(MES_PRO_ALTERNATIVE_PLAN_NOT_EXISTS);
        }
        return plan;
    }

    private MesProAlternativePlanDO validatePlanCanModify(Long id) {
        MesProAlternativePlanDO plan = validatePlanExists(id);
        if (!Objects.equals(plan.getStatus(), STATUS_DRAFT)) {
            throw exception(MES_PRO_ALTERNATIVE_PLAN_NOT_PREPARE);
        }
        return plan;
    }

}