<?php

namespace GoPay;

require_once 'TestUtils.php';
require_once 'CreatePaymentTest.php';

use PHPUnit\Framework\TestCase;

use function PHPUnit\Framework\assertNotEmpty;
use function PHPUnit\Framework\assertNotNull;
use function PHPUnit\Framework\assertArrayNotHasKey;
use function PHPUnit\Framework\assertArrayHasKey;

/**
 *
 * Tests for endpoint GET /payments/payment/{id}/qr-payment
 * Run: C:\Php\php.exe bin\phpunit --configuration phpunit.xml.dist .\tests\integration\QrPaymentTest.php
 */


abstract class QrPaymentTest extends TestCase
{
    /** @var Payments */
    private $gopay;

    protected function setUp(): void
    {
        $this->gopay = TestUtils::setup();
    }

    /**
     * Helper: creates a base payment and returns its ID.
     */
    private function createPaymentAndGetId(): string
    {
        $basePayment = CreatePaymentTest::createBasePayment();
        $response = $this->gopay->createPayment($basePayment);
        $responseBody = $response->json;

        assertNotEmpty($responseBody);
        assertArrayNotHasKey('errors', $responseBody);
        assertNotNull($responseBody['id']);

        return (string) $responseBody['id'];
    }

    /**
     * Creates a payment and fetches QR payment info with default format (png).
     */
    public function testGetQrPaymentDefaultFormat()
    {
        $paymentId = $this->createPaymentAndGetId();
        echo "\nCreated payment ID: {$paymentId}\n";

        $response = $this->gopay->getQrPayment($paymentId);
        $responseBody = $response->json;

        echo "QR Payment response:\n";
        echo print_r($responseBody, true);

        assertNotEmpty($responseBody);
        assertArrayNotHasKey('errors', $responseBody);

        // Response must contain amount and currency
        assertArrayHasKey('amount', $responseBody);
        assertArrayHasKey('currency', $responseBody);

        // Response must contain qr_code block with at least one QR type
        assertArrayHasKey('qr_code', $responseBody);
        $qrCode = $responseBody['qr_code'];
        assertNotEmpty($qrCode);

        // At least one of the known QR code types must be present
        $knownTypes = ['spayd', 'paybysquare', 'sepa', 'mnb_qr'];
        $foundAny = false;
        foreach ($knownTypes as $type) {
            if (!empty($qrCode[$type])) {
                $foundAny = true;
                echo "QR type '{$type}' is present (base64 length: " . strlen($qrCode[$type]) . ")\n";
            }
        }
        $this->assertTrue($foundAny, 'Response qr_code must contain at least one QR code type (spayd, paybysquare, sepa, mnb_qr)');

        echo "HTTP status: {$response->statusCode}\n";
    }

    /**
     * Creates a payment and fetches QR payment info explicitly requesting PNG format.
     */
    public function testGetQrPaymentPngFormat()
    {
        $paymentId = $this->createPaymentAndGetId();
        echo "\nCreated payment ID: {$paymentId}\n";

        $response = $this->gopay->getQrPayment($paymentId, 'png');
        $responseBody = $response->json;

        echo "QR Payment (png) response:\n";
        echo print_r($responseBody, true);

        assertNotEmpty($responseBody);
        assertArrayNotHasKey('errors', $responseBody);
        assertArrayHasKey('qr_code', $responseBody);

        echo "HTTP status: {$response->statusCode}\n";
    }

    /**
     * Creates a payment and fetches QR payment info requesting SVG format.
     */
    public function testGetQrPaymentSvgFormat()
    {
        $paymentId = $this->createPaymentAndGetId();
        echo "\nCreated payment ID: {$paymentId}\n";

        $response = $this->gopay->getQrPayment($paymentId, 'svg');
        $responseBody = $response->json;

        echo "QR Payment (svg) response:\n";
        echo print_r($responseBody, true);

        assertNotEmpty($responseBody);
        assertArrayNotHasKey('errors', $responseBody);
        assertArrayHasKey('qr_code', $responseBody);

        echo "HTTP status: {$response->statusCode}\n";
    }

    /**
     * Verifies that the recipient info is returned in the response.
     */
    public function testGetQrPaymentContainsRecipient()
    {
        $paymentId = $this->createPaymentAndGetId();

        $response = $this->gopay->getQrPayment($paymentId);
        $responseBody = $response->json;

        assertNotEmpty($responseBody);
        assertArrayNotHasKey('errors', $responseBody);

        // Recipient block should be present
        assertArrayHasKey('recipient', $responseBody);
        $recipient = $responseBody['recipient'];
        assertNotEmpty($recipient);

        echo "\nRecipient info:\n";
        echo print_r($recipient, true);
    }
}