Upload public.js

backend/src/routes/public.js

@@ -322,34 +322,75 @@ router.post('/generate-share-link', async (req, res, next) => {
       return res.status(400).json({ error: 'User ID and PPT ID are required' });
     }
 
+    console.log(`Generating share link for PPT: ${pptId}, User: ${userId}`);
+
     // 验证PPT是否存在
     const fileName = `${pptId}.json`;
     const storageService = getStorageService();
     let pptExists = false;
+    let pptData = null;
+    
+    console.log(`Using storage service: ${storageService === githubService ? 'GitHub' : 'Memory'}`);
     
     // 如果是GitHub服务，尝试所有仓库
     if (storageService === githubService && storageService.repositories) {
+      console.log(`Checking ${storageService.repositories.length} GitHub repositories...`);
+      
       for (let i = 0; i < storageService.repositories.length; i++) {
         try {
+          console.log(`Checking repository ${i}: ${storageService.repositories[i]}`);
           const result = await storageService.getFile(userId, fileName, i);
           if (result) {
             pptExists = true;
+            pptData = result.content;
+            console.log(`PPT found in repository ${i}`);
             break;
           }
         } catch (error) {
+          console.log(`PPT not found in repository ${i}: ${error.message}`);
           continue;
         }
       }
     } else {
       // 内存存储服务
-      const result = await storageService.getFile(userId, fileName);
-      if (result) {
-        pptExists = true;
+      console.log('Checking memory storage...');
+      try {
+        const result = await storageService.getFile(userId, fileName);
+        if (result) {
+          pptExists = true;
+          pptData = result.content;
+          console.log('PPT found in memory storage');
+        }
+      } catch (error) {
+        console.log(`PPT not found in memory storage: ${error.message}`);
       }
     }
 
     if (!pptExists) {
-      return res.status(404).json({ error: 'PPT not found' });
+      console.log('PPT not found in any storage location');
+      
+      // 额外尝试：如果GitHub失败，检查memory storage作为fallback
+      if (storageService === githubService) {
+        console.log('GitHub lookup failed, trying memory storage fallback...');
+        try {
+          const memoryResult = await memoryStorageService.getFile(userId, fileName);
+          if (memoryResult) {
+            pptExists = true;
+            pptData = memoryResult.content;
+            console.log('PPT found in memory storage fallback');
+          }
+        } catch (memoryError) {
+          console.log(`Memory storage fallback also failed: ${memoryError.message}`);
+        }
+      }
+    }
+
+    if (!pptExists) {
+      return res.status(404).json({ 
+        error: 'PPT not found',
+        details: `PPT ${pptId} not found for user ${userId}`,
+        searchedLocations: storageService === githubService ? 'GitHub repositories and memory storage' : 'Memory storage only'
+      });
     }
 
     const baseUrl = process.env.PUBLIC_URL || req.get('host');
@@ -361,11 +402,19 @@ router.post('/generate-share-link', async (req, res, next) => {
       // 完整PPT分享链接
       pptUrl: `${protocol}://${baseUrl}/api/public/ppt/${userId}/${pptId}`,
       // 前端查看链接
-      viewUrl: `${protocol}://${baseUrl}/public/${userId}/${pptId}/${slideIndex}`
+      viewUrl: `${protocol}://${baseUrl}/public/${userId}/${pptId}/${slideIndex}`,
+      // 添加PPT信息
+      pptInfo: {
+        id: pptId,
+        title: pptData?.title || 'Unknown Title',
+        slideCount: pptData?.slides?.length || 0
+      }
     };
 
+    console.log('Share links generated successfully:', shareLinks);
     res.json(shareLinks);
   } catch (error) {
+    console.error('Share link generation error:', error);
     next(error);
   }
 });