Reintroduce Webklex IMAP for ticket processing as PHP-IMAP is no longer being developed. This is optional for now and considered beta can be found in cron/ticket_email_parser.php

plugins/vendor/illuminate/support/Once.php

@@ -0,0 +1,99 @@
+<?php
+
+namespace Illuminate\Support;
+
+use WeakMap;
+
+class Once
+{
+    /**
+     * The current globally used instance.
+     *
+     * @var static|null
+     */
+    protected static ?self $instance = null;
+
+    /**
+     * Indicates if the once instance is enabled.
+     *
+     * @var bool
+     */
+    protected static bool $enabled = true;
+
+    /**
+     * Create a new once instance.
+     *
+     * @param  \WeakMap<object, array<string, mixed>>  $values
+     */
+    protected function __construct(protected WeakMap $values)
+    {
+        //
+    }
+
+    /**
+     * Create a new once instance.
+     *
+     * @return static
+     */
+    public static function instance()
+    {
+        return static::$instance ??= new static(new WeakMap);
+    }
+
+    /**
+     * Get the value of the given onceable.
+     *
+     * @param  Onceable  $onceable
+     * @return mixed
+     */
+    public function value(Onceable $onceable)
+    {
+        if (! static::$enabled) {
+            return call_user_func($onceable->callable);
+        }
+
+        $object = $onceable->object ?: $this;
+
+        $hash = $onceable->hash;
+
+        if (! isset($this->values[$object])) {
+            $this->values[$object] = [];
+        }
+
+        if (array_key_exists($hash, $this->values[$object])) {
+            return $this->values[$object][$hash];
+        }
+
+        return $this->values[$object][$hash] = call_user_func($onceable->callable);
+    }
+
+    /**
+     * Re-enable the once instance if it was disabled.
+     *
+     * @return void
+     */
+    public static function enable()
+    {
+        static::$enabled = true;
+    }
+
+    /**
+     * Disable the once instance.
+     *
+     * @return void
+     */
+    public static function disable()
+    {
+        static::$enabled = false;
+    }
+
+    /**
+     * Flush the once instance.
+     *
+     * @return void
+     */
+    public static function flush()
+    {
+        static::$instance = null;
+    }
+}