2026-05-20-23-28-51 项目库映射交互与导入提示优化

WebSite/server.ts

@@ -243,6 +243,40 @@ function getProjectModelFilePath(project: ProjectRecord, fileName: string) {
   return path.join(getProjectModelDir(project), fileName);
 }
 
+function getProjectDicomInfoCachePath(project: ProjectRecord) {
+  const dicomAssetDir = getProjectDicomDir(project);
+  const resolvedDir = path.resolve(dicomAssetDir);
+  const resolvedUploadDir = path.resolve(uploadDir);
+  if (!resolvedDir.startsWith(`${resolvedUploadDir}${path.sep}`)) {
+    return null;
+  }
+  return path.join(resolvedDir, '.revoxelseg-dicom-info.json');
+}
+
+function readCachedDicomInfo(project: ProjectRecord, files: string[]) {
+  const cachePath = getProjectDicomInfoCachePath(project);
+  if (!cachePath || !fs.existsSync(cachePath)) {
+    return null;
+  }
+  try {
+    const cached = JSON.parse(fs.readFileSync(cachePath, 'utf8')) as { files?: string[]; info?: unknown };
+    if (!Array.isArray(cached.files) || cached.files.join('|') !== files.join('|') || !cached.info) {
+      return null;
+    }
+    return cached.info;
+  } catch {
+    return null;
+  }
+}
+
+function writeCachedDicomInfo(project: ProjectRecord, files: string[], info: unknown) {
+  const cachePath = getProjectDicomInfoCachePath(project);
+  if (!cachePath) {
+    return;
+  }
+  fs.writeFileSync(cachePath, JSON.stringify({ generatedAt: now(), files, info }, null, 2));
+}
+
 function clearProjectRuntimeCaches(projectId: string) {
   [...dicomPreviewCache.keys()].forEach((key) => {
     if (key.startsWith(`${projectId}:`)) {
@@ -2391,6 +2425,8 @@ async function startServer() {
         project.dicomPath = toRepoRelativePath(targetDir);
         project.dicomCount = dicomFiles.length;
         project.segmentationResults = [];
+        const dicomInfo = createDicomInfo(project, dicomFiles);
+        writeCachedDicomInfo(project, dicomFiles, dicomInfo);
       } else {
         const stlFiles = listFiles(targetDir, '.stl');
         project.modelPath = toRepoRelativePath(targetDir);
@@ -2566,7 +2602,15 @@ async function startServer() {
     }
 
     try {
-      res.json(createDicomInfo(project, files));
+      const cachedInfo = readCachedDicomInfo(project, files);
+      if (cachedInfo) {
+        res.json(cachedInfo);
+        return;
+      }
+
+      const info = createDicomInfo(project, files);
+      writeCachedDicomInfo(project, files, info);
+      res.json(info);
     } catch (error) {
       res.status(422).json({ message: error instanceof Error ? error.message : 'DICOM 信息解析失败' });
     }