<?php
/**
 * The AuthorizeNet PHP SDK. Include this file in your project.
 *
 * @package AuthorizeNet
 */

class Qs_AuthorizeNet
{
    const AUTHORIZE_OPTION_NAME_PREFIX = 'AUTHORIZENET_';
    const DEFAULT_API_PROVIDER         = 'aim';

    const ERROR_RESPONSE_OBJECT_IS_WRONG = 0;
    const ERROR                          = 1;

    protected static $_optionsMap = ['API_LOGIN_ID', 'TRANSACTION_KEY', 'SANDBOX', 'LOG_FILE', 'TEST_REQUEST'];

    public static $errorMap = [
        self::ERROR_RESPONSE_OBJECT_IS_WRONG => 'Response object is wrong',
        self::ERROR                          => 'Authorize.net return error: %s',
    ];

    public static function getInstance($options, $api = null)
    {
        if (empty($api)) {
            $api = self::DEFAULT_API_PROVIDER;
        }
        self::_setOptions($options);
        $class = 'AuthorizeNet' . strtoupper($api);
        if (!class_exists($class)) {
            throw new Qs_Exception("Cannot find class: $class");
        }
        return new $class();
    }

    protected static function _setOptions(array $options)
    {
        foreach (self::$_optionsMap as $option) {
            if (!array_key_exists($option, $options)) {
                throw new Qs_Exception('Set authorize option ' . $option . ' (_lib/app-config/checkout.php).');
            }
            define(self::AUTHORIZE_OPTION_NAME_PREFIX . $option, $options[$option]);
        }
    }
}