package com.ruoyi.production.service.impl;


import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.deepoove.poi.XWPFTemplate;
import com.deepoove.poi.data.PictureRenderData;
import com.deepoove.poi.data.Pictures;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.MatrixToImageWriter;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.production.dto.ProductWorkOrderDto;
import com.ruoyi.production.mapper.ProductWorkOrderFileMapper;
import com.ruoyi.production.mapper.ProductWorkOrderMapper;
import com.ruoyi.production.mapper.ProductWorkOrderRapporteurMapper;
import com.ruoyi.production.pojo.ProductWorkOrder;
import com.ruoyi.production.pojo.ProductWorkOrderFile;
import com.ruoyi.production.pojo.ProductWorkOrderRapporteur;
import com.ruoyi.production.service.ProductWorkOrderService;
import com.ruoyi.project.system.domain.SysUser;
import com.ruoyi.project.system.mapper.SysUserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;

@Service
@Transactional(rollbackFor = Exception.class)
public class ProductWorkOrderServiceImpl extends ServiceImpl<ProductWorkOrderMapper, ProductWorkOrder> implements ProductWorkOrderService {

    @Autowired
    private ProductWorkOrderMapper productWorkOrdermapper;
    @Autowired
    private ProductWorkOrderFileMapper productWorkOrderFileMapper;
    @Autowired
    private ProductWorkOrderRapporteurMapper productWorkOrderRapporteurMapper;
    @Autowired
    private SysUserMapper sysUserMapper;

    @Value("${file.temp-dir}")
    private String tempDir;

    @Override
    public IPage<ProductWorkOrderDto> listPage(Page<ProductWorkOrderDto> page, ProductWorkOrderDto productWorkOrder) {
        if (productWorkOrder != null && Integer.valueOf(2).equals(productWorkOrder.getType())) {
            productWorkOrder.setCurrentUserId(SecurityUtils.getUserId());
        }
        IPage<ProductWorkOrderDto> pageData = productWorkOrdermapper.pageProductWorkOrder(page, productWorkOrder);
        List<ProductWorkOrderDto> records = pageData.getRecords();
        if (CollectionUtils.isEmpty(records)) {
            return pageData;
        }

        List<Long> workOrderIds = records.stream()
                .map(ProductWorkOrderDto::getId)
                .filter(Objects::nonNull)
                .collect(Collectors.toList());
        if (CollectionUtils.isEmpty(workOrderIds)) {
            return pageData;
        }

        List<ProductWorkOrderRapporteur> rapporteurs = productWorkOrderRapporteurMapper.selectList(Wrappers.<ProductWorkOrderRapporteur>lambdaQuery()
                .in(ProductWorkOrderRapporteur::getWorkOrderId, workOrderIds));

        final Map<Long, List<Long>> rapporteurMap = CollectionUtils.isNotEmpty(rapporteurs)
                ? rapporteurs.stream()
                .filter(item -> item.getWorkOrderId() != null && item.getUserId() != null)
                .collect(Collectors.groupingBy(
                        ProductWorkOrderRapporteur::getWorkOrderId,
                        LinkedHashMap::new,
                        Collectors.mapping(ProductWorkOrderRapporteur::getUserId, Collectors.toList())
                ))
                : new LinkedHashMap<>();

        records.forEach(item -> {
            List<Long> userIds = rapporteurMap.get(item.getId());
            item.setReportWorkersId(userIds == null ? new Long[0] : userIds.toArray(new Long[0]));
        });
        return pageData;
    }

    @Override
    public int updateProductWorkOrder(ProductWorkOrderDto productWorkOrderDto) {
        int rows = productWorkOrdermapper.updateById(productWorkOrderDto);
        if (rows <= 0 || productWorkOrderDto.getId() == null) {
            return rows;
        }

        productWorkOrderRapporteurMapper.delete(Wrappers.<ProductWorkOrderRapporteur>lambdaQuery()
                .eq(ProductWorkOrderRapporteur::getWorkOrderId, productWorkOrderDto.getId()));

        Long[] rapporteurIds = productWorkOrderDto.getReportWorkersId();
        if (rapporteurIds == null || rapporteurIds.length == 0) {
            return rows;
        }

        List<Long> candidateUserIds = Arrays.stream(rapporteurIds)
                .filter(Objects::nonNull)
                .distinct()
                .collect(Collectors.toList());
        if (CollectionUtils.isEmpty(candidateUserIds)) {
            return rows;
        }

        List<Long> existUserIds = sysUserMapper.selectUserByIds(candidateUserIds).stream()
                .map(SysUser::getUserId)
                .filter(Objects::nonNull)
                .collect(Collectors.toList());
        if (existUserIds.size() != candidateUserIds.size()) {
            List<Long> invalidUserIds = candidateUserIds.stream()
                    .filter(id -> !existUserIds.contains(id))
                    .collect(Collectors.toList());
            throw new ServiceException("报工人不存在: " + invalidUserIds);
        }

        List<ProductWorkOrderRapporteur> rapporteurList = candidateUserIds.stream()
                .map(userId -> {
                    ProductWorkOrderRapporteur rapporteur = new ProductWorkOrderRapporteur();
                    rapporteur.setWorkOrderId(productWorkOrderDto.getId());
                    rapporteur.setUserId(userId);
                    return rapporteur;
                })
                .collect(Collectors.toList());

        if (!rapporteurList.isEmpty()) {
            rapporteurList.forEach(productWorkOrderRapporteurMapper::insert);
        }
        return rows;
    }

    @Override
    public void down(HttpServletResponse response, ProductWorkOrder productWorkOrder) {
        ProductWorkOrderDto productWorkOrderDto = productWorkOrdermapper.getProductWorkOrderFlowCard(productWorkOrder.getId());
        String codePath;
        try {
            codePath = new MatrixToImageWriter().code(productWorkOrderDto.getId().toString(), tempDir);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        /*获取附件图片类型*/
        List<Map<String, Object>> images = new ArrayList<>();
        List<ProductWorkOrderFile> productWorkOrderFiles = productWorkOrderFileMapper.selectList(Wrappers.<ProductWorkOrderFile>lambdaQuery().eq(ProductWorkOrderFile::getWorkOrderId, productWorkOrder.getId()));
        if (CollectionUtils.isNotEmpty(productWorkOrderFiles)) {
            productWorkOrderFiles.forEach(productWorkOrderFile -> {
                Map<String, Object> image = new HashMap<>();
                PictureRenderData pictureRenderData = Pictures.ofLocal(productWorkOrderFile.getUrl()).sizeInCm(17, 20).create();
                image.put("url", pictureRenderData);
                images.add(image);
            });
        }
        InputStream inputStream = this.getClass().getResourceAsStream("/static/work-order-template.docx");
        XWPFTemplate template = XWPFTemplate.compile(inputStream).render(
                new HashMap<String, Object>() {{
                    put("process", productWorkOrderDto.getProcessName());
                    put("workOrderNo", productWorkOrderDto.getWorkOrderNo());
                    put("productOrderNpsNo", productWorkOrderDto.getProductOrderNpsNo());
                    put("productName", productWorkOrderDto.getProductName());
                    put("planQuantity", productWorkOrderDto.getPlanQuantity());
                    put("model", productWorkOrderDto.getModel());
                    put("completeQuantity", productWorkOrderDto.getCompleteQuantity());
                    put("scrapQty", productWorkOrderDto.getScrapQty());
                    put("planStartTime", productWorkOrderDto.getPlanStartTime());
                    put("planEndTime", productWorkOrderDto.getPlanEndTime());
                    put("actualStartTime", productWorkOrderDto.getActualStartTime());
                    put("actualEndTime", productWorkOrderDto.getActualEndTime());
                    put("twoCode", Pictures.ofLocal(codePath).create());
                    put("images", images.isEmpty() ? null : images);
                }});

        try {
            response.setContentType("application/msword");
            String fileName = URLEncoder.encode(
                    "流转卡", "UTF-8");
            response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
            response.setHeader("Content-disposition",
                    "attachment;filename=" + fileName + ".docx");
            OutputStream os = response.getOutputStream();
            template.write(os);
            os.flush();
            os.close();
            inputStream.close();
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("导出失败");
        }
    }

}