<?php

use Link0\Bunq\Client;
use Link0\Bunq\Domain\Keypair;
use Link0\Bunq\Domain\Keypair\PublicKey;
use Link0\Bunq\Environment\Production;
use Link0\Bunq\Environment\Sandbox;
use Link0\Bunq\Service\InstallationService;

require_once('vendor/autoload.php');

/**
 * @param $installationService
 * @param $keypair
 * @param $apiKey
 * @return mixed
 */
function registerInstallationAndDeviceServer(InstallationService $installationService, $keypair, $apiKey)
{
    $installation = $installationService->createInstallation($keypair);

    $installationToken = $installation[1];
    $serverPublicKey = $installation[2];

    // Cache the server public key somewhere
    file_put_contents('server-public-key.txt', $serverPublicKey);

    // Cache the installation token somehere
    file_put_contents('installation-token.txt', $installationToken);

    $installationService->createDeviceServer($installationToken, $apiKey, 'I pasted this from README.md');
}

// openssl genpkey -algorithm RSA -out private.pem -pkeyopt rsa_keygen_bits:2048
// openssl rsa -pubout -in private.pem -out public.pem
$keypair = Keypair::fromStrings(
    file_get_contents('public.pem'),
    file_get_contents('private.pem')
);

// Replace this with what you received from the app
$apiKey = 'your-api-key';

$debugMode = true;

//$environment = new Production($debugMode);
$environment = new Sandbox($debugMode);
$client = new Client($environment, $keypair);

$installationService = new InstallationService($client);

registerInstallationAndDeviceServer($installationService, $keypair, $apiKey);

$installationToken = file_get_contents('installation-token.txt');

$sessionServer = $installationService->createSessionServer($installationToken, $apiKey);

$sessionServerId = $sessionServer[0];
$sessionToken = $sessionServer[1];
$user = $sessionServer[2];

file_put_contents('session-token.txt', $sessionToken);

// After this, you can use the client with all other services as followed
$client = new Client(
    $environment,
    $keypair,
    new PublicKey(file_get_contents('server-public-key.txt')),
    file_get_contents('session-token.txt')
);