<?php

function setPayment($pin, $amount, $callback, $card)
{
    $data = [
        "pin"         => $pin,
        "amount"      => $amount,
        "callback"    => $callback,
        "card_number" => $card
    ];

    $curl = curl_init();

    curl_setopt_array($curl, array(
        CURLOPT_URL => 'https://panel.aqayepardakht.ir/api/v2/create',
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => '',
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 10,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => 'POST',
        CURLOPT_POSTFIELDS => json_encode($data),
        CURLOPT_HTTPHEADER => [
            'Content-Type: application/json',
            'Content-Length: ' . strlen(json_encode($data))
        ],
    ));

    $response = curl_exec($curl);

    if ($response === false) {
        echo 'Curl error: ' . curl_error($curl);
        return null;
    }

    curl_close($curl);
    return json_decode($response);
}

function createSepalTransaction($apiKey, $amount, $callbackUrl, $invoiceNumber)
{
    $url = 'https://sepal.ir/api/sandbox/request.json';

    $payload = [
        'apiKey'         => $apiKey,
        'amount'         => intval($amount),
        'callbackUrl'    => $callbackUrl,
        'invoiceNumber'  => $invoiceNumber
    ];

    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);

    $response = curl_exec($ch);
    curl_close($ch);

    $result = json_decode($response, true);

    if (isset($result['status']) && $result['status'] === true) {
        return $result['paymentNumber'];
    } else {
        return false;
    }
}