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upload-middleware.js

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+// upload-middleware.js
+const multer = require('multer');
+const path = require('path');
+const fs = require('fs');
+
+function setupUploadMiddleware() {
+    const { createUserTaskFolder } = require('./database');
+    
+    const storage = multer.diskStorage({
+        destination: (req, file, cb) => {
+            const taskId = req.body.taskId || req.params.taskId;
+            const userLogin = req.session.user?.login;
+            
+            if (taskId && userLogin) {
+                const userFolder = createUserTaskFolder(taskId, userLogin);
+                cb(null, userFolder);
+            } else {
+                const tempDir = path.join(__dirname, 'data', 'uploads', 'temp');
+                if (!fs.existsSync(tempDir)) {
+                    fs.mkdirSync(tempDir, { recursive: true });
+                }
+                cb(null, tempDir);
+            }
+        },
+        filename: (req, file, cb) => {
+            const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9);
+            cb(null, uniqueSuffix + path.extname(file.originalname));
+        }
+    });
+
+    return multer({
+        storage: storage,
+        limits: {
+            fileSize: 300 * 1024 * 1024,
+            files: 15
+        }
+    });
+}
+
+module.exports = { setupUploadMiddleware };