🎉 Added range based message coloring

README.md

@@ -80,6 +80,8 @@ Gist Parameter | Description
 `logoPosition` | The position of the logo.
 `style` | The style like "flat" or "social".
 `cacheSeconds` | The cache lifetime in seconds (must be greater than 300).
+`maxColorRange` | Maximum value for the value passaed as message. Used to define the message color. 
+`minColorRange` | Minimum value for the value passaed as message. Used to define the message color.
 
 ### Using Environment Variables as Parameters [![badge](https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/schneegans/2ab8f1d386f13aaebccbd87dac94068d/raw/answer.json)](https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/schneegans/2ab8f1d386f13aaebccbd87dac94068d/raw/answer.json)
 

action.yml

@@ -49,6 +49,12 @@ inputs:
   cacheSeconds:
     description: 'The cache lifetime in seconds (must be greater than 300)'
     required: false
+  maxColorRange:
+    description: 'Maximum value for the value passaed as message. Used to define the message color.'
+    required: false
+  minColorRange:
+    description: 'Minimum value for the value passaed as message. Used to define the message color.'
+    required: false
 runs:
   using: 'node12'
   main: 'index.js'

index.js

@@ -24,12 +24,22 @@ try {
   const logoPosition = core.getInput('logoPosition');
   const style        = core.getInput('style');
   const cacheSeconds = core.getInput('cacheSeconds');
+  const minColorRange = core.getInput('minColorRange');
+  const maxColorRange = core.getInput('maxColorRange');
 
   if (labelColor != '') {
     content.labelColor = labelColor;
   }
 
-  if (color != '') {
+  if (minColorRange != '' && maxColorRange != '') {
+    var max = parseFloat(maxColorRange);
+    var min = parseFloat(minColorRange);
+    var val = parseFloat(content.message);
+    if (val < min) val = min;
+    if (val > max) val = max;
+    let hue = Math.floor((val - min) / (max - min) * 100);
+    content.color = "hsl(" + hue + ", 100%, 50%)";
+  } else if (color != '') {
     content.color = color;
   }