Refactor threshold error msg messages into helper

app/Helpers/NotificationsHelper.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Helpers;
+
+class NotificationsHelper {
+
+    /**
+     * Parse $errors and format message
+     *
+     * @param array $errors
+     * @return String
+     */
+    public static function formatPercentageThresholdMessage(array $errors)
+    {
+        $msg = NotificationsHelper::thresholdMessageStart($errors);
+
+        $msg = $msg . 'exceeded the percentage threshold';
+
+        return $msg;
+    }
+
+    /**
+     * Parse $errors and format message
+     *
+     * @param array $errors
+     * @return String
+     */
+    public static function formatAbsoluteThresholdMessage(array $errors)
+    {
+        $msg = NotificationsHelper::thresholdMessageStart($errors);
+
+        $msg = $msg . 'exceeded the absolute threshold';
+
+        return $msg;
+    }
+
+    /**
+     * Iterate through errors to format message
+     *
+     * @param array $errors
+     * @return String
+     */
+    public static function thresholdMessageStart(array $errors)
+    {
+        $msg = 'For the latest speedtest, the ';
+
+        for($i = 0; $i < sizeof($errors); $i++) {
+            $key = $errors[$i];
+            $msg = $msg . $key;
+            if(sizeof($errors) > 1 && $i < (sizeof($errors) - 1)) {
+                $msg = $msg . ', ';
+            }
+        }
+
+        if($msg[-1] != '') {
+            $msg = $msg . ' ';
+        }
+
+        if(sizeof($errors) > 1) {
+            $msg = $msg . 'values ';
+        } else {
+            $msg = $msg . 'value ';
+        }
+
+        return $msg;
+    }
+}