fix: 问题修复

1. 编辑新增药品的信息同步his;
2. pdf调整(主要是压缩生成的pdf文件)

hlw/drug-info/index.js

@@ -286,6 +286,9 @@ async function addHlwDrugInfo(ctx) {
     }
     newDrug.createTime = Date.now();
     const res = await db.collection("drug-info").insertOne(newDrug);
+    if (res && res.insertedId) {
+      updateHisDrugInfo({ id: res.insertedId.toString() })
+    }
     return { success: true, message: "新增药品成功", id: res.insertedId }
   } catch (e) {
     return { success: false, message: e.message || '新增药品失败' }
@@ -337,6 +340,7 @@ async function editHlwDrugInfo(ctx) {
       if (res.matchedCount === 0) {
         return { success: false, message: "未找到对应药品" }
       }
+      updateHisDrugInfo({ id })
       return { success: true, message: "更新成功" }
     }
     return { success: true, message: "更新成功" }

hlw/prescription-pdf/index.js

@@ -12,9 +12,15 @@ let browserPromise;
 let activeJobs = 0;
 const waiters = [];
 const cachedPdfJobs = new Map();
-const PDF_TEMPLATE_VERSION = "v7";
+const PDF_TEMPLATE_VERSION = "v11";
 const MAX_SIGNATURE_IMAGE_BYTES = 1024 * 1024;
 const SIGNATURE_DOWNLOAD_TIMEOUT_MS = 5000;
+const MAX_PRESCRIPTION_PDF_BYTES = 100 * 1024;
+const RASTER_PAGE_SIZES = {
+  // A5 (148mm) 减去左右 8mm 页边距后的实际打印宽度为 132mm。
+  A5: { viewport: { width: 500, height: 733, deviceScaleFactor: 1 }, contentWidth: "132mm", contentHeight: "194mm" },
+  A4: { viewport: { width: 733, height: 1062, deviceScaleFactor: 1 }, contentWidth: "194mm", contentHeight: "281mm" },
+};
 const PRESCRIPTION_SEAL_IMAGE_URL = process.env.CONFIG_PRESCRIPTION_SEAL_IMAGE_URL
   || "https://hlwyy.hnkhhospital.com/upload-files/other/stamp.png";
 
@@ -96,7 +102,7 @@ async function getBrowser() {
     browserPromise = puppeteer.launch({
       executablePath: getExecutablePath(),
       headless: true,
-      args: ["--no-sandbox", "--disable-setuid-sandbox", "--disable-dev-shm-usage"],
+      args: ["--no-sandbox", "--disable-setuid-sandbox", "--disable-dev-shm-usage", "--disable-gpu"],
     });
     const browser = await browserPromise;
     browser.on("disconnected", () => {
@@ -273,12 +279,12 @@ function buildPrescriptionHtml(record, paperSize = "A5", signatureImages = {}) {
 <style>
   @page { size: ${size} portrait; margin: 8mm; }
   * { box-sizing: border-box; }
-  html, body { margin: 0; padding: 0; color: #111; font-family: "Noto Sans CJK SC", "Noto Sans SC", SimSun, "Songti SC", serif; font-size: 14px; }
+  html, body { margin: 0; padding: 0; color: #111; background: #fff; font-family: "Noto Sans CJK SC", "Noto Sans SC", SimSun, "Songti SC", serif; font-size: 14px; }
   body { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
-  .prescription { min-height: ${size === "A5" ? "194mm" : "281mm"}; display: flex; flex-direction: column; line-height: 1.28; overflow: hidden; }
+  .prescription { width: calc(100% - 1px); min-height: ${size === "A5" ? "194mm" : "281mm"}; display: flex; flex-direction: column; line-height: 1.28; overflow: hidden; }
   .header { position: relative; border-bottom: 1px solid #111; padding: 3px 0 4px; }
   .title { font-weight: 700; font-size: 17px; text-align: center; line-height: 1.4; }
-  .rx-type { position: absolute; top: 0; right: 0; width: 40px; border: 1px solid #333; text-align: center; color: #666; font-size: 12px; line-height: 1.3; }
+  .rx-type { position: absolute; top: 0; right: 1px; width: 40px; border: 1px solid #333; text-align: center; color: #666; font-size: 12px; line-height: 1.3; }
   .rx-number { margin-top: 5px; }
   .patient-info { padding-top: 5px; }
   .info-row { display: flex; padding: 2px; }
@@ -323,30 +329,66 @@ function buildPrescriptionHtml(record, paperSize = "A5", signatureImages = {}) {
 </body></html>`;
 }
 
+function buildRasterPdfHtml(image, paperSize) {
+  const size = RASTER_PAGE_SIZES[paperSize];
+  return `<!doctype html><html><head><meta charset="utf-8" /><style>
+    @page { size: ${paperSize} portrait; margin: 8mm; }
+    html, body { margin: 0; padding: 0; }
+    img { display: block; width: ${size.contentWidth}; height: ${size.contentHeight}; }
+  </style></head><body><img src="${image}" alt="处方笺" /></body></html>`;
+}
+
+async function generateCompactPrescriptionPdf(html, paperSize) {
+  // Chrome 会为中文文本嵌入字体子集；即使没有图片，单页也约 280KB。
+  // 将实际打印区域以 96dpi 截图并转为 JPEG，可保留处方可读性且避免字体嵌入。
+  const browser = await getBrowser();
+  const size = RASTER_PAGE_SIZES[paperSize];
+  const rasterPage = await browser.newPage();
+  try {
+    await rasterPage.setViewport(size.viewport);
+    await rasterPage.setContent(html, { waitUntil: "load" });
+    await rasterPage.evaluate(() => document.fonts && document.fonts.ready);
+    const screenshot = await rasterPage.screenshot({
+      type: "jpeg",
+      quality: 72,
+      clip: { x: 0, y: 0, width: size.viewport.width, height: size.viewport.height },
+    });
+    const compactPage = await browser.newPage();
+    try {
+      await compactPage.setContent(
+        buildRasterPdfHtml(`data:image/jpeg;base64,${Buffer.from(screenshot).toString("base64")}`, paperSize),
+        { waitUntil: "load" }
+      );
+      const pdf = Buffer.from(await compactPage.pdf({
+        format: paperSize,
+        preferCSSPageSize: true,
+        printBackground: true,
+        margin: { top: 0, right: 0, bottom: 0, left: 0 },
+      }));
+      if (pdf.length > MAX_PRESCRIPTION_PDF_BYTES) {
+        throw new Error(`处方 PDF 压缩后仍超过 ${MAX_PRESCRIPTION_PDF_BYTES} 字节`);
+      }
+      return pdf;
+    } finally {
+      await compactPage.close().catch(() => {});
+    }
+  } finally {
+    await rasterPage.close().catch(() => {});
+  }
+}
+
 async function generatePrescriptionPdf(record, options = {}) {
   await acquireSlot();
-  let page;
   try {
-    const browser = await getBrowser();
-    page = await browser.newPage();
     const [doctor, pharmacist, seal] = await Promise.all([
       loadSignatureDataImage(record.doctorSignImg),
       loadSignatureDataImage(record.pharmacistSignImg),
       loadSignatureDataImage(PRESCRIPTION_SEAL_IMAGE_URL),
     ]);
-    await page.setContent(
+    const html = buildPrescriptionHtml(record, options.paperSize, { doctor, pharmacist, seal });
-      buildPrescriptionHtml(record, options.paperSize, { doctor, pharmacist, seal }),
+    const paperSize = options.paperSize === "A4" ? "A4" : "A5";
-      { waitUntil: "load" }
+    return generateCompactPrescriptionPdf(html, paperSize);
-    );
-    await page.evaluate(() => document.fonts && document.fonts.ready);
-    return Buffer.from(await page.pdf({
-      format: options.paperSize === "A4" ? "A4" : "A5",
-      preferCSSPageSize: true,
-      printBackground: true,
-      margin: { top: 0, right: 0, bottom: 0, left: 0 },
-    }));
   } finally {
-    if (page) await page.close().catch(() => {});
     releaseSlot();
   }
 }