<?php

function airPayProviders()
{
    return [
        48 => [
            'bank' => "YES",
            'username' => 'qDqXV5q22U',
            'password' => 'qjCTnZz5',
            'secret' => 'fYb48hdPcUWeQ7Nt',
            'mercid' => '353491',
            'clientV4Id' => '7eccf4',
            'clientV4Secret' => '17e14d83030528725248aba9ad3f6e3f',
			'providerId' => 48,
        ],
		59 => [
            'bank' => "FINO",
            'username' => '9V8HKR24Kr',
            'password' => 'wvDa52nt',
            'secret' => 'QMGSxZ9vj7vy4gP9',
            'mercid' => '355490',
            'clientV4Id' => '686160',
            'clientV4Secret' => 'e0186346b38d2213edd12c87319df667',
			'providerId' => 59,
        ],
		62 => [
            'bank' => "RBL",
            'username' => '6qzkWDWxba',
            'password' => 'wVcnWq95',
            'secret' => '4pbZVACzkVWUtD2e',
            'mercid' => '355488',
            'clientV4Id' => '3706ba',
            'clientV4Secret' => '220b1631e0cbf0c64ebd6c90a0f78881',
			'providerId' => 62,
        ],
    ];
}

function airPayCred($providerId = null)
{
    $providers = airPayProviders();

    $cred = $providers[$providerId];

    // Derived keys
    $cred['key256'] = hash('SHA256', $cred['username'] . "~:~" . $cred['password']);
    $cred['secretV4Key'] = md5($cred['username'] . "~:~" . $cred['password']);

    return $cred;
}

function airPayCredByMercId($mercid)
{
    if (!$mercid) {
        return null;
    }

    foreach (airPayProviders() as $providerId => $cred) {
        if ((string) $cred['mercid'] === (string) $mercid) {

            $cred['key256'] = hash('SHA256', $cred['username'] . "~:~" . $cred['password']);
            $cred['secretV4Key'] = md5($cred['username'] . "~:~" . $cred['password']);
            $cred['provider_id'] = $providerId;

            return $cred;
        }
    }

    return null;
}

?>