package com.ruoyi.production.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.production.dto.ProductionOrderRouteItemDto;
import com.ruoyi.production.mapper.ProductionOrderRouteItemMapper;
import com.ruoyi.production.pojo.ProcessRouteItemParam;
import com.ruoyi.production.pojo.ProductProcess;
import com.ruoyi.production.pojo.ProductionOrderRouteItem;
import com.ruoyi.production.pojo.ProductionOrderRouteItemParam;
import com.ruoyi.production.service.IProductionOrderRouteItemParamService;
import com.ruoyi.production.service.IProductionOrderRouteItemService;
import com.ruoyi.production.service.ProcessRouteItemParamService;
import com.ruoyi.production.service.ProductProcessService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.time.LocalDateTime;
import java.util.List;
import java.util.stream.Collectors;

/**
 * <p>
 * 生产订单绑定的工艺路线--工序表 服务实现类
 * </p>
 *
 * @author deslrey
 * @since 2026-03-20
 */
@Slf4j
@Service
public class ProductionOrderRouteItemServiceImpl extends ServiceImpl<ProductionOrderRouteItemMapper, ProductionOrderRouteItem> implements IProductionOrderRouteItemService {

    @Resource
    private ProductProcessService productProcessService;

    @Resource
    private IProductionOrderRouteItemParamService productionOrderRouteItemParamService;

    @Resource
    private ProcessRouteItemParamService processRouteItemParamService;

    @Override
    public List<ProductionOrderRouteItemDto> getProcessItem(Long orderId) {
        List<ProductionOrderRouteItem> list = list(new LambdaQueryWrapper<ProductionOrderRouteItem>()
                .eq(ProductionOrderRouteItem::getOrderId, orderId)
                .orderByAsc(ProductionOrderRouteItem::getDragSort));
        return list.stream().map(item -> {
            ProductionOrderRouteItemDto dto = new ProductionOrderRouteItemDto();
            BeanUtils.copyProperties(item, dto);
            if (item.getProcessId() != null) {
                ProductProcess process = productProcessService.getById(item.getProcessId());
                if (process != null) {
                    dto.setProcessName(process.getName());
                }
            }
            return dto;
        }).collect(Collectors.toList());
    }

    @Override
    public void addProcessItem(ProductionOrderRouteItemDto dto) {
        if (dto == null) {
            throw new ServiceException("新增数据不能为空");
        }
        if (dto.getOrderId() == null) {
            throw new ServiceException("生产订单ID不能为空");
        }
        if (dto.getProcessId() == null) {
            throw new ServiceException("工序ID不能为空");
        }
        ProductionOrderRouteItem entity = new ProductionOrderRouteItem();
        BeanUtils.copyProperties(dto, entity);
        entity.setId(null);
        entity.setTenantId(SecurityUtils.getLoginUser().getTenantId());
        entity.setCreateTime(LocalDateTime.now());

        //  取当前订单下最大 dragSort + 1
        ProductionOrderRouteItem maxSortItem = getOne(new LambdaQueryWrapper<ProductionOrderRouteItem>()
                .eq(ProductionOrderRouteItem::getOrderId, dto.getOrderId())
                .orderByDesc(ProductionOrderRouteItem::getDragSort)
                .last("limit 1"));
        entity.setDragSort(maxSortItem != null && maxSortItem.getDragSort() != null ? maxSortItem.getDragSort() + 1 : 1);
        save(entity);
    }

    @Override
    public void updateProcessItem(ProductionOrderRouteItemDto dto) {
        if (dto == null || dto.getId() == null) {
            throw new ServiceException("更新数据或ID不能为空");
        }
        ProductionOrderRouteItem old = getById(dto.getId());
        if (old == null) {
            throw new ServiceException("数据不存在");
        }
        // 工序变更，删除旧参数附表，迁移新工序参数
        if (dto.getProcessId() != null && !dto.getProcessId().equals(old.getProcessId())) {
            // 删除工艺路线工序参数附表
            productionOrderRouteItemParamService.remove(new LambdaQueryWrapper<ProductionOrderRouteItemParam>()
                    .eq(ProductionOrderRouteItemParam::getOrderId, old.getOrderId())
                    .eq(ProductionOrderRouteItemParam::getRouteItemId, old.getId()));

            // 迁移新工序的 process_route_item_param
            List<ProcessRouteItemParam> routeItemParams = processRouteItemParamService.list(
                    new LambdaQueryWrapper<ProcessRouteItemParam>().eq(ProcessRouteItemParam::getRouteItemId, old.getId()));
            if (!routeItemParams.isEmpty()) {
                List<ProductionOrderRouteItemParam> newInstances = routeItemParams.stream().map(p -> {
                    ProductionOrderRouteItemParam instance = new ProductionOrderRouteItemParam();
                    BeanUtils.copyProperties(p, instance, "id");
                    instance.setOrderId(old.getOrderId());
                    return instance;
                }).collect(Collectors.toList());
                productionOrderRouteItemParamService.saveBatch(newInstances);
            }
        }
        ProductionOrderRouteItem entity = new ProductionOrderRouteItem();
        BeanUtils.copyProperties(dto, entity);
        entity.setUpdateTime(LocalDateTime.now());
        updateById(entity);
    }

    @Override
    public void deleteProcessItem(Long id) {
        if (id == null) {
            throw new ServiceException("ID不能为空");
        }
        ProductionOrderRouteItem old = getById(id);
        if (old == null) {
            throw new ServiceException("数据不存在");
        }
        // 删除工艺路线工序参数附表
        productionOrderRouteItemParamService.remove(new LambdaQueryWrapper<ProductionOrderRouteItemParam>()
                .eq(ProductionOrderRouteItemParam::getOrderId, old.getOrderId())
                .eq(ProductionOrderRouteItemParam::getRouteItemId, id));
        removeById(id);
    }

    @Override
    public void sortProcessItem(ProductionOrderRouteItemDto dto) {
        if (dto == null || dto.getId() == null) {
            throw new ServiceException("数据或ID不能为空");
        }
        ProductionOrderRouteItem old = getById(dto.getId());
        if (old == null) {
            throw new ServiceException("数据不存在");
        }
        List<ProductionOrderRouteItem> items = list(new LambdaQueryWrapper<ProductionOrderRouteItem>()
                .eq(ProductionOrderRouteItem::getOrderId, old.getOrderId())
                .orderByAsc(ProductionOrderRouteItem::getDragSort));
        Integer targetPosition = dto.getDragSort();
        if (targetPosition != null && targetPosition >= 1) {
            items.removeIf(item -> item.getId().equals(old.getId()));
            items.add(targetPosition - 1, old);
            for (int i = 0; i < items.size(); i++) {
                ProductionOrderRouteItem item = items.get(i);
                int newSort = i + 1;
                if (!item.getId().equals(old.getId())) {
                    if (!Integer.valueOf(newSort).equals(item.getDragSort())) {
                        item.setDragSort(newSort);
                        updateById(item);
                    }
                } else {
                    old.setDragSort(newSort);
                    updateById(old);
                }
            }
        }
    }
}