package cn.iocoder.yudao.module.crm.service.quotation;
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import cn.hutool.core.convert.Convert;
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import cn.iocoder.yudao.module.crm.controller.admin.quotation.vo.CrmSaleQuotationRespVO;
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import org.springframework.core.io.ClassPathResource;
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import org.w3c.dom.Node;
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import javax.imageio.ImageIO;
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import javax.xml.XMLConstants;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.transform.TransformerFactory;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import java.awt.*;
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import java.awt.geom.Path2D;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.math.BigDecimal;
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import java.math.RoundingMode;
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import java.time.format.DateTimeFormatter;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Objects;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipInputStream;
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import java.util.zip.ZipOutputStream;
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/**
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* 销售报价单 Word 导出：基于 {@code templates/quotation/sale-quotation.docx} 模板填写业务槽位，
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* 并在导出时按公司名称实时绘制电子章（不依赖静态章图片资源）。
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*/
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public final class CrmSaleQuotationDocumentRenderer {
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private static final String W = "http://schemas.openxmlformats.org/wordprocessingml/2006/main";
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private static final String TEMPLATE = "templates/quotation/sale-quotation.docx";
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private static final String SEAL_ENTRY = "word/media/seal.png";
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private CrmSaleQuotationDocumentRenderer() {
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}
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public static byte[] render(CrmSaleQuotationRespVO quotation, String companyName) throws IOException {
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if (quotation == null) {
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throw new IllegalArgumentException("报价单不存在，无法生成报价文件");
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}
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if (quotation.getItems() == null || quotation.getItems().isEmpty()) {
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throw new IllegalArgumentException("报价单没有产品明细，无法生成报价文件");
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}
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byte[] seal = renderSeal(companyName);
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try (var input = new ClassPathResource(TEMPLATE).getInputStream();
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var zip = new ZipInputStream(input);
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var output = new ByteArrayOutputStream();
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var result = new ZipOutputStream(output)) {
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ZipEntry entry;
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while ((entry = zip.getNextEntry()) != null) {
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byte[] content = zip.readAllBytes();
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if ("word/document.xml".equals(entry.getName())) {
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content = fillDocument(content, quotation, companyName);
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} else if (SEAL_ENTRY.equals(entry.getName())) {
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content = seal;
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}
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result.putNextEntry(new ZipEntry(entry.getName()));
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result.write(content);
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result.closeEntry();
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}
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result.finish();
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return output.toByteArray();
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}
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}
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private static byte[] fillDocument(byte[] xml, CrmSaleQuotationRespVO quotation, String companyName)
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throws IOException {
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try {
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var factory = DocumentBuilderFactory.newInstance();
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factory.setNamespaceAware(true);
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factory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
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factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, "");
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factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "");
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var document = factory.newDocumentBuilder().parse(new ByteArrayInputStream(xml));
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// 1. 产品明细行
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Node rowTemplate = null;
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var rows = document.getElementsByTagNameNS(W, "tr");
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for (int i = 0; i < rows.getLength(); i++) {
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if (rows.item(i).getTextContent().contains("${itemName}")) {
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rowTemplate = rows.item(i);
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break;
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}
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}
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if (rowTemplate == null) {
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throw new IOException("报价单模板缺少产品明细槽位");
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}
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int index = 0;
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for (var item : quotation.getItems()) {
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Node row = rowTemplate.cloneNode(true);
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BigDecimal price = item.getQuotationPrice() == null ? BigDecimal.ZERO : item.getQuotationPrice();
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BigDecimal count = item.getCount() == null ? BigDecimal.ZERO : item.getCount();
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BigDecimal amount = item.getTotalPrice() != null ? item.getTotalPrice()
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: price.multiply(count).setScale(2, RoundingMode.HALF_UP);
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String name = text(item.getItemName());
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if (name.isBlank()) {
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name = text(item.getItemCode());
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}
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Map<String, String> values = new HashMap<>();
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values.put("index", String.valueOf(++index));
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values.put("itemName", name);
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values.put("itemSpecification", text(item.getItemSpecification()));
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values.put("unitName", text(item.getItemUnitName()));
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values.put("count", count.stripTrailingZeros().toPlainString());
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values.put("price", money(price));
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values.put("amount", money(amount));
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replace(row, values);
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rowTemplate.getParentNode().insertBefore(row, rowTemplate);
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}
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rowTemplate.getParentNode().removeChild(rowTemplate);
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// 2. 表头与金额
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BigDecimal productTotal = quotation.getTotalProductPrice() == null ? BigDecimal.ZERO
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: quotation.getTotalProductPrice();
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BigDecimal discount = quotation.getDiscountPrice() == null ? BigDecimal.ZERO
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: quotation.getDiscountPrice();
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BigDecimal taxRate = quotation.getTaxRate() == null ? BigDecimal.ZERO : quotation.getTaxRate();
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BigDecimal taxPrice = quotation.getTaxPrice() == null ? BigDecimal.ZERO : quotation.getTaxPrice();
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BigDecimal total = quotation.getTotalPrice() == null ? BigDecimal.ZERO : quotation.getTotalPrice();
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Map<String, String> values = new HashMap<>();
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values.put("companyName", text(companyName));
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values.put("customerName", text(quotation.getCustomerName()));
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values.put("quotationNo", text(quotation.getNo()));
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values.put("quotationName", text(quotation.getName()));
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values.put("quotationDate", date(quotation.getQuotationTime()));
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values.put("validUntil", date(quotation.getValidUntil()));
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values.put("contactName", text(quotation.getContactName()));
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values.put("ownerUserName", text(quotation.getOwnerUserName()));
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values.put("productTotal", money(productTotal));
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values.put("discountPrice", money(discount));
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values.put("taxRate", taxRate.stripTrailingZeros().toPlainString());
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values.put("taxPrice", money(taxPrice));
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values.put("totalPrice", money(total));
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values.put("totalUpper", Convert.digitToChinese(total));
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values.put("remark", text(quotation.getRemark()).isBlank() ? "无" : quotation.getRemark());
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replace(document, values);
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if (document.getDocumentElement().getTextContent().contains("${")) {
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throw new IOException("报价单模板存在未填写槽位");
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}
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var transformerFactory = TransformerFactory.newInstance();
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transformerFactory.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, "");
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transformerFactory.setAttribute(XMLConstants.ACCESS_EXTERNAL_STYLESHEET, "");
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var output = new ByteArrayOutputStream();
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transformerFactory.newTransformer().transform(new DOMSource(document), new StreamResult(output));
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return output.toByteArray();
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} catch (IOException exception) {
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throw exception;
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} catch (Exception exception) {
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throw new IOException("生成报价单 Word 文件失败", exception);
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}
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}
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// ==================== 电子章绘制 ====================
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/**
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* 按公司名称实时绘制红色圆形电子章：双圆环 + 上方环绕公司名 + 中央五角星 + 下方“报价专用章”。
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* 不依赖任何静态章图片，避免换公司品牌后仍需单独维护图片资源。
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*/
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private static byte[] renderSeal(String companyName) throws IOException {
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int size = 400;
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var image = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
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Graphics2D g = image.createGraphics();
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try {
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g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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var red = new Color(200, 16, 46);
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g.setColor(red);
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g.setStroke(new BasicStroke(9f));
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g.drawOval(12, 12, size - 24, size - 24);
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g.setStroke(new BasicStroke(3f));
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g.drawOval(38, 38, size - 76, size - 76);
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String name = text(companyName).isBlank() ? "公司" : companyName.trim();
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int fontSize = Math.max(16, Math.min(30, 560 / Math.max(1, name.length())));
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g.setFont(new Font("SimSun", Font.BOLD, fontSize));
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drawArcText(g, name, size / 2, size / 2, size / 2 - 62, 195, 150);
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drawStar(g, size / 2, size / 2 - 8, 34, 14);
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g.setFont(new Font("SimSun", Font.BOLD, 27));
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drawCentered(g, "报价专用章", size / 2, (int) (size * 0.68));
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} finally {
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g.dispose();
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}
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var output = new ByteArrayOutputStream();
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ImageIO.write(image, "png", output);
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return output.toByteArray();
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}
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/** 沿圆弧排布文字，startDeg 起、顺时针 sweepDeg 度；字符基线朝圆心。 */
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private static void drawArcText(Graphics2D g, String text, int cx, int cy, int radius,
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double startDeg, double sweepDeg) {
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FontMetrics fm = g.getFontMetrics();
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int[] widths = new int[text.length()];
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double totalWidth = 0;
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for (int i = 0; i < text.length(); i++) {
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widths[i] = Math.max(1, fm.charWidth(text.charAt(i)));
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totalWidth += widths[i];
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}
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double angle = startDeg;
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for (int i = 0; i < text.length(); i++) {
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double span = widths[i] / totalWidth * sweepDeg;
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double center = angle + span / 2;
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double rad = Math.toRadians(center);
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int x = (int) (cx + radius * Math.cos(rad));
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int y = (int) (cy + radius * Math.sin(rad));
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var transform = g.getTransform();
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g.rotate(Math.toRadians(center + 90), x, y);
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g.drawString(String.valueOf(text.charAt(i)), x - widths[i] / 2, y + fm.getAscent() / 2 - 3);
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g.setTransform(transform);
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angle += span;
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}
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}
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private static void drawStar(Graphics2D g, int cx, int cy, int outer, int inner) {
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var path = new Path2D.Double();
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for (int i = 0; i < 10; i++) {
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double r = i % 2 == 0 ? outer : inner;
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double angle = Math.toRadians(-90 + i * 36);
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double x = cx + r * Math.cos(angle);
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double y = cy + r * Math.sin(angle);
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if (i == 0) {
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path.moveTo(x, y);
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} else {
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path.lineTo(x, y);
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}
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}
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path.closePath();
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g.fill(path);
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}
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private static void drawCentered(Graphics2D g, String text, int cx, int baseline) {
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FontMetrics fm = g.getFontMetrics();
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g.drawString(text, cx - fm.stringWidth(text) / 2, baseline);
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}
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// ==================== 工具方法 ====================
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private static void replace(Node node, Map<String, String> values) {
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if (node.getNodeType() == Node.ELEMENT_NODE && "t".equals(node.getLocalName())
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&& W.equals(node.getNamespaceURI())) {
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String value = node.getTextContent();
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for (var entry : values.entrySet()) {
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value = value.replace("${" + entry.getKey() + "}", entry.getValue());
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}
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node.setTextContent(value);
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return;
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}
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for (Node child = node.getFirstChild(); child != null; child = child.getNextSibling()) {
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replace(child, values);
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}
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}
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private static String money(BigDecimal value) {
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return value.setScale(2, RoundingMode.HALF_UP).toPlainString();
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}
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private static String date(java.time.LocalDateTime value) {
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return value == null ? "____________" : value.format(DateTimeFormatter.ofPattern("yyyy年MM月dd日"));
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}
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private static String text(String value) {
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return Objects.requireNonNullElse(value, "");
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}
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}
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