<?php

namespace Org\Wplake\Advanced_Views\Optional_Vendors\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
     * @return void
     */
    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[$object][$hash])) {
            return $this->values[$object][$hash];
        }
        if (!isset($this->values[$object])) {
            $this->values[$object] = [];
        }
        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;
    }
}
