feat: rewire routes to BullMQ and speed up documents page

apps/Backend/src/routes/paymentOcrExtraction.ts

@@ -1,49 +1,56 @@
 import { Router, Request, Response } from "express";
 import multer from "multer";
-import { forwardToPaymentOCRService } from "../services/paymentOCRService"; 
+import { ocrQueue } from "../queue/queues";
 
 const router = Router();
 
 // keep files in memory; FastAPI accepts them as multipart bytes
 const upload = multer({ storage: multer.memoryStorage() });
 
+const ALLOWED_MIMES = new Set([
+  "image/jpeg",
+  "image/png",
+  "image/tiff",
+  "image/bmp",
+  "image/jpg",
+]);
+
 // POST /payment-ocr/extract  (field name: "files")
 router.post(
   "/extract",
-  upload.array("files"), // allow multiple images
+  upload.array("files"),
   async (req: Request, res: Response): Promise<any> => {
-    try {
-      const files = req.files as Express.Multer.File[] | undefined;
+    const files = req.files as Express.Multer.File[] | undefined;
 
-      if (!files || files.length === 0) {
-        return res
-          .status(400)
-          .json({ error: "No image files uploaded. Use field name 'files'." });
-      }
-
-      // (optional) basic client-side MIME guard
-      const allowed = new Set([
-        "image/jpeg",
-        "image/png",
-        "image/tiff",
-        "image/bmp",
-        "image/jpg",
-      ]);
-      const bad = files.filter((f) => !allowed.has(f.mimetype.toLowerCase()));
-      if (bad.length) {
-        return res.status(415).json({
-          error: `Unsupported file types: ${bad
-            .map((b) => b.originalname)
-            .join(", ")}`,
-        });
-      }
-
-      const rows = await forwardToPaymentOCRService(files);
-      return res.json({ rows });
-    } catch (err) {
-      console.error(err);
-      return res.status(500).json({ error: "Payment OCR extraction failed" });
+    if (!files || files.length === 0) {
+      return res
+        .status(400)
+        .json({ error: "No image files uploaded. Use field name 'files'." });
     }
+
+    const bad = files.filter((f) => !ALLOWED_MIMES.has(f.mimetype.toLowerCase()));
+    if (bad.length) {
+      return res.status(415).json({
+        error: `Unsupported file types: ${bad.map((b) => b.originalname).join(", ")}`,
+      });
+    }
+
+    const filesForQueue = files.map((f) => ({
+      originalname: f.originalname,
+      bufferBase64: f.buffer.toString("base64"),
+      mimetype: f.mimetype,
+    }));
+
+    const socketId: string | undefined =
+      (req.body?.socketId as string) ?? undefined;
+
+    const job = await ocrQueue.add("ocr", {
+      userId: (req.user as any)?.id ?? 0,
+      socketId,
+      files: filesForQueue,
+    });
+
+    return res.json({ jobId: job.id, status: "queued" });
   }
 );