Fix flight page errors and some naming fixes

app/Models/Enums/Enum.php

@@ -0,0 +1,89 @@
+<?php
+
+namespace App\Models\Enums;
+
+/**
+ * Class EnumBase
+ * @package App\Models\Enums
+ */
+abstract class Enum
+{
+    protected static $labels = [];
+    protected static $cache = [];
+
+    /**
+     * Return the label, try to return the translated version as well
+     * @param $value
+     * @return mixed
+     */
+    public static function label($value) {
+        if(isset(static::$labels[$value])) {
+            return trans(static::$labels[$value]);
+        }
+    }
+
+    /**
+     * Return all of the (translated) labels
+     */
+    public static function labels()
+    {
+        $labels = [];
+        foreach(static::$labels as $key => $label) {
+            $labels[$key] = trans($label);
+        }
+
+        return $labels;
+    }
+
+    /**
+     * Select box
+     */
+    public static function select($add_blank=false)
+    {
+        $labels = [];
+        if($add_blank) {
+            $labels[] = '';
+        }
+
+        foreach (static::$labels as $key => $label) {
+            $labels[$key] = trans($label);
+        }
+
+        return $labels;
+    }
+
+    /**
+     * Returns all possible values as an array
+     * @return array Constant name in key, constant value in value
+     * @throws \ReflectionException
+     */
+    public static function toArray()
+    {
+        $class = get_called_class();
+        if (!array_key_exists($class, static::$cache)) {
+            $reflection = new \ReflectionClass($class);
+            static::$cache[$class] = $reflection->getConstants();
+        }
+
+        return static::$cache[$class];
+    }
+
+    /**
+     * Returns a value when called statically like so: MyEnum::SOME_VALUE() given SOME_VALUE is a class constant
+     * @param string $name
+     * @param array $arguments
+     * @return static
+     * @throws \BadMethodCallException
+     * @throws \ReflectionException
+     */
+    public static function __callStatic($name, $arguments)
+    {
+        $array = static::toArray();
+        if (isset($array[$name])) {
+            return new static($array[$name]);
+        }
+        throw new \BadMethodCallException(
+            "No static method or enum constant '$name' in class ".get_called_class()
+        );
+    }
+}