Partial: Refactor to accept only boolean params for FF

Author: lamATnginx

layouts/partials/get-feature-flags.html

@@ -1,11 +1,14 @@
-{{- $featureName := . | default "" -}}
-{{- $param := (string (index site.Params.featureflags $featureName)) | default "false" -}} <!-- Added default in case param does not exist, we should default to a value instead of nil -->
+{{- /* Extract parameter with validation */ -}}
+{{- $featureName := . -}}
+{{- $featureFlags := site.Params.featureflags -}}
+{{- if ne (printf "%T" (index $featureFlags $featureName)) "bool" -}}
+  {{ errorf "Expected type of params to be boolean." }}
+{{- end -}}
+{{- $param := index $featureFlags $featureName -}}
 {{- $result := false -}}
 
-{{- if ne $featureName "" -}}
-  {{- if not (eq $param "true") -}}
-    {{- $result = true -}}
-  {{- end -}}
+{{- if not (eq $param true) -}}
+  {{- $result = true -}}
 {{- end -}}
 
 {{- return $result -}}