From 841d5ac3ea39e7733e2444c4a68b0dfe993db11f Mon Sep 17 00:00:00 2001
From: Alexandre <44178713+alexbelgium@users.noreply.github.com>
Date: Sun, 6 Apr 2025 21:32:53 +0200
Subject: [PATCH] Check for empty streams

---
 .../rootfs/custom-services.d/30-monitoring.sh     | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/birdnet-pi/rootfs/custom-services.d/30-monitoring.sh b/birdnet-pi/rootfs/custom-services.d/30-monitoring.sh
index 7b9c1a817..73f2df2ac 100755
--- a/birdnet-pi/rootfs/custom-services.d/30-monitoring.sh
+++ b/birdnet-pi/rootfs/custom-services.d/30-monitoring.sh
@@ -229,6 +229,18 @@ check_services() {
     fi
 }
 
+check_for_empty_stream() {
+    local log_tail
+    log_tail=$(timeout 15 cat /proc/1/fd/1 | tail -n 5)
+
+    if echo "$log_tail" | grep -q "Haliastur indus"; then
+        log_red "$(date) INFO: Potential empty stream detected (frequent 'Haliastur indus')."
+        apprisealert "Potential empty stream detected — frequent 'Haliastur indus' in log"
+        return 1
+    fi
+    return 0
+}
+
 ########################################
 # Main Monitoring Loop
 ########################################
@@ -253,6 +265,9 @@ while true; do
     # 4) Services check
     check_services || any_issue=1
 
+    # 5) Check for potential empty stream
+    check_for_empty_stream || any_issue=1
+
     # Final summary
     if (( any_issue == 0 )); then
         log_green "$(date) INFO: All systems are functioning normally"