From e7855b4611f754fcde4f5adaff0e1a6006ddaaac Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Tue, 17 Nov 2020 21:37:23 +0100
Subject: netwatch-notify: support parents in a chain

---
 netwatch-notify | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/netwatch-notify b/netwatch-notify
index 4c3586c..1cfd4a6 100644
--- a/netwatch-notify
+++ b/netwatch-notify
@@ -42,19 +42,28 @@
       }
     }
     :set ($Metric->"notified") false;
+    :set ($Metric->"parent") ($HostInfo->"parent");
     :set ($Metric->"since");
   } else={
     :set ($Metric->"count") ($Metric->"count" + 1);
+    :set ($Metric->"parent") ($HostInfo->"parent");
     :set ($Metric->"since") ($HostVal->"since");
     :local Count [ $IfThenElse ([ :tonum ($HostInfo->"count") ] > 0) ($HostInfo->"count") 5 ];
-    :local ParentNotified [ $IfThenElse (($NetwatchNotify->($HostInfo->"parent")->"notified") = true) true false ];
-    :if ([ :len ($HostInfo->"parent") ] > 0) do={
+    :local Parent ($HostInfo->"parent");
+    :if ([ :len $Parent ] > 0) do={
       :set Count ($Count + 1);
     }
+    :local ParentNotified false;
+    :while ($ParentNotified = false && [ :len $Parent ] > 0) do={
+      :set ParentNotified [ $IfThenElse (($NetwatchNotify->$Parent->"notified") = true) true false ];
+      :if ($ParentNotified = false) do={
+        :set Parent ($NetwatchNotify->$Parent->"parent");
+      }
+    }
     $LogPrintExit info ("Host " . $HostName . " (" . $HostVal->"host" . ") is down for " . \
       $Metric->"count" . " checks, " . [ $IfThenElse ($ParentNotified = false) [ $IfThenElse \
       ($Metric->"notified" = true) ("already notified.") ($Count - $Metric->"count" . " to go.") ] \
-      ("parent host " . $HostInfo->"parent" . " is down.") ]) false;
+      ("parent host " . $Parent . " is down.") ]) false;
     :if ($ParentNotified = false && $Metric->"count" >= $Count && $Metric->"notified" != true) do={
       $SendNotification ([ $SymbolForNotification "cross-mark" ] . "Netwatch Notify: " . $HostName . " down") \
         ("Host " . $HostName . " (" . $HostVal->"host" . ") is down since " . $HostVal->"since" . ".");
@@ -68,5 +77,6 @@
   :set ($NetwatchNotify->$HostName) {
     "count"=($Metric->"count");
     "notified"=($Metric->"notified");
+    "parent"=($Metric->"parent");
     "since"=($Metric->"since") };
 }
-- 
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