/home/kueuepay/www/vendor/laravel/framework/src/Illuminate/Support/MultipleInstanceManager.php
<?php

namespace Illuminate\Support;

use Closure;
use InvalidArgumentException;
use RuntimeException;

abstract class MultipleInstanceManager
{
    /**
     * The application instance.
     *
     * @var \Illuminate\Contracts\Foundation\Application
     */
    protected $app;

    /**
     * The array of resolved instances.
     *
     * @var array
     */
    protected $instances = [];

    /**
     * The registered custom instance creators.
     *
     * @var array
     */
    protected $customCreators = [];

    /**
     * Create a new manager instance.
     *
     * @param  \Illuminate\Contracts\Foundation\Application  $app
     * @return void
     */
    public function __construct($app)
    {
        $this->app = $app;
    }

    /**
     * Get the default instance name.
     *
     * @return string
     */
    abstract public function getDefaultInstance();

    /**
     * Set the default instance name.
     *
     * @param  string  $name
     * @return void
     */
    abstract public function setDefaultInstance($name);

    /**
     * Get the instance specific configuration.
     *
     * @param  string  $name
     * @return array
     */
    abstract public function getInstanceConfig($name);

    /**
     * Get an instance instance by name.
     *
     * @param  string|null  $name
     * @return mixed
     */
    public function instance($name = null)
    {
        $name = $name ?: $this->getDefaultInstance();

        return $this->instances[$name] = $this->get($name);
    }

    /**
     * Attempt to get an instance from the local cache.
     *
     * @param  string  $name
     * @return mixed
     */
    protected function get($name)
    {
        return $this->instances[$name] ?? $this->resolve($name);
    }

    /**
     * Resolve the given instance.
     *
     * @param  string  $name
     * @return mixed
     *
     * @throws \InvalidArgumentException
     */
    protected function resolve($name)
    {
        $config = $this->getInstanceConfig($name);

        if (is_null($config)) {
            throw new InvalidArgumentException("Instance [{$name}] is not defined.");
        }

        if (! array_key_exists('driver', $config)) {
            throw new RuntimeException("Instance [{$name}] does not specify a driver.");
        }

        if (isset($this->customCreators[$config['driver']])) {
            return $this->callCustomCreator($config);
        } else {
            $driverMethod = 'create'.ucfirst($config['driver']).'Driver';

            if (method_exists($this, $driverMethod)) {
                return $this->{$driverMethod}($config);
            } else {
                throw new InvalidArgumentException("Instance driver [{$config['driver']}] is not supported.");
            }
        }
    }

    /**
     * Call a custom instance creator.
     *
     * @param  array  $config
     * @return mixed
     */
    protected function callCustomCreator(array $config)
    {
        return $this->customCreators[$config['driver']]($this->app, $config);
    }

    /**
     * Unset the given instances.
     *
     * @param  array|string|null  $name
     * @return $this
     */
    public function forgetInstance($name = null)
    {
        $name ??= $this->getDefaultInstance();

        foreach ((array) $name as $instanceName) {
            if (isset($this->instances[$instanceName])) {
                unset($this->instances[$instanceName]);
            }
        }

        return $this;
    }

    /**
     * Disconnect the given instance and remove from local cache.
     *
     * @param  string|null  $name
     * @return void
     */
    public function purge($name = null)
    {
        $name ??= $this->getDefaultInstance();

        unset($this->instances[$name]);
    }

    /**
     * Register a custom instance creator Closure.
     *
     * @param  string  $name
     * @param  \Closure  $callback
     * @return $this
     */
    public function extend($name, Closure $callback)
    {
        $this->customCreators[$name] = $callback->bindTo($this, $this);

        return $this;
    }

    /**
     * Dynamically call the default instance.
     *
     * @param  string  $method
     * @param  array  $parameters
     * @return mixed
     */
    public function __call($method, $parameters)
    {
        return $this->instance()->$method(...$parameters);
    }
}
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Kueue Pay Payment Gateway Solutions Developer API Documentation

Welcome to the Kueue Pay Payment Gateway Solutions Developer API Documentation. This comprehensive guide will empower you to seamlessly integrate our advanced payment gateway into your website, enhancing your customers’ payment experience and enabling efficient transaction processing. The Kueue Pay Developer API is designed for developers and entrepreneurs who seek simplicity, security, and reliability in their payment processing solutions.

1. Introduction

The Kueue Pay Developer API allows you to seamlessly integrate Kueue Pay’s Payment Gateway Solutions into your website, enabling secure and efficient debit and credit card transactions. With our API, you can initiate payments, check payment statuses, and even process refunds, all while ensuring a smooth and streamlined payment experience for your customers.

Prerequisites