From 2625cc09a5215c2f1f165197154a4c22f4ba6a3a Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Sat, 13 Nov 2021 21:29:33 +0100
Subject: check-health: support hard lower limit for voltage

... to detect slow decrease of voltage, for example with UPS.
---
 check-health | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'check-health')

diff --git a/check-health b/check-health
index 9fef8bc..56413c1 100644
--- a/check-health
+++ b/check-health
@@ -14,6 +14,7 @@
 :global CheckHealthTemperature;
 :global CheckHealthTemperatureDeviation;
 :global CheckHealthTemperatureNotified;
+:global CheckHealthVoltageLow;
 :global CheckHealthVoltagePercent;
 :global Identity;
 
@@ -52,6 +53,17 @@ $ScriptLock $0;
         message=("The " . $Name . " on " . $Identity . " jumped more than " . $CheckHealthVoltagePercent . "%.\n\n" . \
           "old value: " . [ $FormatVoltage ($CheckHealthLast->$Name) ] . "\n" . \
           "new value: " . [ $FormatVoltage $Voltage ]) });
+    } else={ 
+      :if ($Voltage <= $CheckHealthVoltageLow && $CheckHealthLast->$Name > $CheckHealthVoltageLow) do={ 
+        $SendNotification2 ({ origin=$0; \ 
+          subject=([ $SymbolForNotification "high-voltage-sign,chart-decreasing" ] . "Health warning: Low " . $Name); \ 
+          message=("The " . $Name . " on " . $Identity . " dropped to " . [ $FormatVoltage $Voltage ] . " below hard limit.") }); 
+      } 
+      :if ($Voltage > $CheckHealthVoltageLow && $CheckHealthLast->$Name <= $CheckHealthVoltageLow) do={ 
+        $SendNotification2 ({ origin=$0; \ 
+          subject=([ $SymbolForNotification "high-voltage-sign,chart-increasing" ] . "Health recovery: Low " . $Name); \ 
+          message=("The " . $Name . " on " . $Identity . " recovered to " . [ $FormatVoltage $Voltage ] . " above hard limit.") }); 
+      }
     }
   }
 }
-- 
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