<?php

namespace Moneta;

class MonetaSdkService {
    /**
     * Exception messages text
     */
    const EXCEPTION_ERROR_ACTION_NAME = "Wrong action name: ";

    /**
     * @param string $action
     * @param string $transactionId
     * @param float|int $amount
     * @param string $subscriber
     * @return string
     * @throws MonetaSdkException
     */
    public static function createSignature($action, $transactionId, $configPath, ?float $amount = null,) {
        switch ($action) {
            case 'generateLink':
                return md5(
                    MonetaSdkSettings::getSettings('id', $configPath) .
                        $transactionId .
                        number_format($amount, 2, '.', '') .
                        MonetaSdkSettings::getSettings('currency', $configPath) .
                        '' .
                        0 .
                        MonetaSdkSettings::getSettings('secret', $configPath)
                );
                break;

            case 'checkRequest':
                return md5(
                    402 .
                        MonetaSdkSettings::getSettings('id', $configPath) .
                        $transactionId .
                        MonetaSdkSettings::getSettings('secret', $configPath)
                );
                break;

            case 'paymentNotification':
                return md5(
                    200 .
                        MonetaSdkSettings::getSettings('id', $configPath) .
                        $transactionId .
                        MonetaSdkSettings::getSettings('secret', $configPath)
                );
                break;

            default:
                throw new MonetaSdkException(self::EXCEPTION_ERROR_ACTION_NAME . $action);
                break;
        }
    }

    /**
     * @param string $jsonVat 
     * @return string 
     */
    public static function getXmlVat($jsonVat) {
        $xmlVatList = [
            'none' => '1105',
            'vat0' => '1104',
            'vat10' => '1103',
            'vat110' => '1107',
            'vat20' => '7000',
            'vat120' => '7001',
            'vat5' => '1108',
            'vat7' => '1109',
            'vat15' => '1110',
            'vat17' => '1111'
        ];

        return isset($xmlVatList[$jsonVat]) ? $xmlVatList[$jsonVat] : '1105';
    }

    /**
     * MerchantAPI query builder
     */

    /**
     * @return string 
     */
    private static function getApiUrl($configPath) {
        $url = MonetaSdkSettings::getSettings('demo_mode', $configPath) ? MonetaSdkSettings::getSettings('payment_url', $configPath)['demo'] : MonetaSdkSettings::getSettings('payment_url', $configPath)['production'];

        $urn = MonetaSdkSettings::getSettings('urn');

        return $url . $urn;
    }

    /**
     * @param array $params 
     * @return string 
     */
    public static function sendCurl($params, $configPath) {
        $ch = curl_init(self::getApiUrl($configPath));
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($params, JSON_UNESCAPED_UNICODE));

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_HEADER, false);
        $result = curl_exec($ch);
        curl_close($ch);

        return json_decode($result, true);
    }
}