package com.example.erp.service.sd;
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import com.aspose.cad.Image;
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import com.aspose.cad.ImageOptionsBase;
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import com.aspose.cad.imageoptions.CadRasterizationOptions;
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import com.aspose.cad.imageoptions.PngOptions;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
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import com.example.erp.common.Result;
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import com.example.erp.entity.sd.OrderDetail;
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import com.example.erp.entity.sd.OrderFile;
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import com.example.erp.mapper.sd.OrderFileMapper;
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import lombok.RequiredArgsConstructor;
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import org.springframework.stereotype.Service;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.*;
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import java.util.stream.Collectors;
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@Service
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@RequiredArgsConstructor
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public class OrderFileService {
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private final OrderFileMapper orderFileMapper;
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public List<OrderFile> getOrderFilePicture(List<Map<String,Object>> orderDetails) throws NoSuchFieldException {
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Set<String> seenKeys = new HashSet<>();
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List<Map<String,Object>> result = new ArrayList<>();
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// 遍历订单详情列表去重
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result = orderDetails.stream()
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.collect(Collectors.collectingAndThen(
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Collectors.toMap(
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map -> map.get("order_id") + "_" + map.get("order_number"),
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map -> map,
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(existing, replacement) -> existing // 保留第一个出现的
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),
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map -> new ArrayList<>(map.values())
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));
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//循环获取图片
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List<OrderFile> orderFiles = new ArrayList<>();
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for (Map<String,Object> obj : result) {
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OrderFile orderFile = orderFileMapper.selectOne(new QueryWrapper<OrderFile>()
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.select("order_id, order_number, image_base64")
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.eq("order_id", obj.get("order_id"))
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.eq("order_number", obj.get("order_number"))
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);
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if (orderFile != null){
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orderFiles.add(orderFile);
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}
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}
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return orderFiles;
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}
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public Object updateOrderFileByOrderNumber(MultipartFile file,String orderId,String orderNumber) throws IOException {
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// 调用Image类的Load方法来加载输入的DWG文件。
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Image image = Image.load(file.getInputStream());
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// 创建CadRasterizationOptions实例以启用CAD栅格化选项。
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CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
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// 设置宽度
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rasterizationOptions.setPageWidth(1000);
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// 设置高度
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rasterizationOptions.setPageHeight(1000);
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// 调用这个setEmbedBackground方法来设置背景色是否不等于输出格式的默认背景色
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rasterizationOptions.setEmbedBackground(true);
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// 为生成的图像创建一个PngOptions的实例，并将其分配给ImageOptionsBase类的实例。
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ImageOptionsBase options = new PngOptions();
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// 调用 setVectorRasterizationOptions 方法来定义光栅化选项
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options.setVectorRasterizationOptions(rasterizationOptions);
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// 保存到字节流
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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image.save(outputStream, options);
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byte[] imageBytes = outputStream.toByteArray();
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String base64 = "data:image/png;base64," + Base64.getEncoder().encodeToString(imageBytes);
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OrderFile orderFile = new OrderFile();
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orderFile.setImageBase64(base64);
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orderFile.setFileName(file.getName());
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orderFile.setOrderId(orderId);
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orderFile.setOrderNumber(orderNumber);
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orderFile.setFileData(Arrays.toString(file.getBytes()));
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OrderFile orderFileExist = orderFileMapper
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.selectOne(new LambdaQueryWrapper<OrderFile>()
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.eq(OrderFile::getOrderId, orderId)
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.eq(OrderFile::getOrderNumber, orderNumber)
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);
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if (orderFileExist == null) {
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orderFileMapper.insert(orderFile);
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}else {
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orderFileMapper.update(orderFile,new LambdaUpdateWrapper<OrderFile>()
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.eq(OrderFile::getOrderId, orderId)
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.eq(OrderFile::getOrderNumber, orderNumber)
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);
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}
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return base64;
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}
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}
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