Refactor ISO8583Processor to improve MTI handling and logging; include invoice I…

…D in performance logs

iso8583_web/iso8583/processor.py

@@ -40,17 +40,23 @@ class ISO8583Processor:
         # print(f"[process_file] db_config: {db_config}")
 
         iso = ISO8583(iso=data)
-        print(iso.showBitmap())
+        # print(iso.showBitmap())
+        # try:
+        #     invoice_id = iso.getBit(61) if iso.getBit(61) else None
+        #     log.info(f"Processing file: {filename}, MTI: {iso.getMTI()}, Invoice ID (Bit 61): {invoice_id}")
+        # except Exception as e:
+        #     log.error(f"Error parsing ISO8583 message from {filename}: {e}")
+
         bit39 = '00'
         mti = iso.getMTI() if iso.getMTI() else '0000'
         log.info(f"MTI detected: {mti}")
         response = b''
+        invoice_id = ""
         if mti == '0800':
             log.info(f"Handling network management MTI: {mti}")
             iso.setMTI('0810')
 
         elif mti in ('0200', '0210'):
-            logging.info(f"Handling transaction MTI: {mti}")
             func = iso.getBit(3) if iso.getBit(3) else '000000'
             invid = iso.getBit(61) if iso.getBit(37) else None
             invoice_id = re.sub(r'\D', '', invid) if invid else '000000'
@@ -109,19 +115,16 @@ class ISO8583Processor:
             logging.info(f"Handling reversal MTI: {mti}")
             response = b'RESP:0400/0420'  # Add bit 7, 4, 62, 39 as needed
         else:
-            logging.warning(f"Unknown MTI: {mti}")
-            response = b'UNKNOWN MTI'
-        if response == b'UNKNOWN MTI':
-            logging.info(f"Removed unprocessable file: {filename}")
-            return response
-        else:
+            logging.error(f"Unknown MTI: {mti}")
+            bit39 = '96'  # System malfunction
+         
         iso.setBit(7, self.get_bit7())
         iso.setBit(39, bit39)
         response = iso.getRawIso()
         log.info(
             f"[WRITE] Prepared response for {filename}, data: {response.hex() if isinstance(response, bytes) else response}")
-            return response
         end_time = time.time()
         elapsed = end_time - start_time
         log.info(
-            f"[PERF] Processed {filename} in {elapsed:.3f} seconds (MTI={mti})")
+            f"[PERF] Processed {filename} {invoice_id} in {elapsed:.3f} seconds (MTI={mti})")
+        return response