#75 - new colors

app/Eloquent/Helpers/ColorGenerator.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Eloquent\Helpers;
+
+class ColorGenerator
+{
+    public static function generate(string $text): string
+    {
+        $colors = config("colors");
+        $hash = static::calculateHash($text);
+
+        $index = $hash - count($colors) * floor($hash / count($colors));
+
+        return $colors[$index];
+    }
+
+    protected static function calculateHash(string $text): int
+    {
+        $hash = 0;
+
+        if (empty($text)) {
+            return $hash;
+        }
+
+        for ($i = 0; $i < mb_strlen($text); $i++) {
+            $hash = abs(($hash << 2) - $hash) + mb_ord($text[$i]);
+        }
+
+        return $hash;
+    }
+}