From 4e06f7a96d794b2ac27c3751f9421fb202b15afb Mon Sep 17 00:00:00 2001
From: acidburns <neon22@web.de>
Date: Wed, 4 Feb 2026 00:35:01 +0100
Subject: [PATCH] Log ACK transmit and reject cases

- Add debug log for ACK TX with batch/sender/receiver ids
- Log rejected ACKs to help diagnose mismatched ids or batches
---
 src/main.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/main.cpp b/src/main.cpp
index 1b50178..0f49a3f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -497,6 +497,9 @@ static void send_batch_ack(uint16_t batch_id, uint16_t sender_id) {
   write_u16_le(&ack.payload[0], batch_id);
   write_u16_le(&ack.payload[2], sender_id);
   write_u16_le(&ack.payload[4], g_short_id);
+  if (SERIAL_DEBUG_MODE) {
+    serial_debug_printf("ack: tx batch_id=%u sender=%u receiver=%u", batch_id, sender_id, g_short_id);
+  }
   lora_send(ack);
   lora_receive_continuous();
 }
@@ -851,6 +854,9 @@ static void sender_loop() {
         g_last_acked_batch_id = ack_id;
         serial_debug_printf("ack: ok batch_id=%u", ack_id);
         finish_inflight_batch();
+      } else if (SERIAL_DEBUG_MODE) {
+        serial_debug_printf("ack: reject batch_id=%u sender=%u receiver=%u exp_batch=%u exp_sender=%u",
+                            ack_id, ack_sender, ack_receiver, g_last_sent_batch_id, g_short_id);
       }
     }
   }