<?php
declare(strict_types=1);

namespace Phred\Tests;

use Nyholm\Psr7\ServerRequest;
use PHPUnit\Framework\TestCase;

final class ErrorHandlingTest extends TestCase
{
    public function testRestProblemDetailsOnException(): void
    {
        $root = dirname(__DIR__);
        /** @var object $app */
        $app = require $root . '/bootstrap/app.php';
        $this->assertInstanceOf(\Phred\Http\Kernel::class, $app);

        // Default format is REST (unless ACCEPT requests JSON:API)
        $request = new ServerRequest('GET', '/_phred/error');
        $response = $app->handle($request);

        $this->assertSame(500, $response->getStatusCode());
        $this->assertSame('application/problem+json', $response->getHeaderLine('Content-Type'));
        $data = json_decode((string) $response->getBody(), true);
        $this->assertIsArray($data);
        $this->assertArrayHasKey('type', $data);
        $this->assertArrayHasKey('title', $data);
        $this->assertArrayHasKey('status', $data);
        $this->assertArrayHasKey('detail', $data);
        $this->assertSame(500, $data['status']);
        $this->assertSame('RuntimeException', $data['title']);
        $this->assertStringContainsString('Boom', (string) $data['detail']);
    }

    public function testJsonApiErrorDocumentOnException(): void
    {
        $root = dirname(__DIR__);
        /** @var object $app */
        $app = require $root . '/bootstrap/app.php';
        $this->assertInstanceOf(\Phred\Http\Kernel::class, $app);

        $request = (new ServerRequest('GET', '/_phred/error'))
            ->withHeader('Accept', 'application/vnd.api+json');
        $response = $app->handle($request);

        $this->assertSame(500, $response->getStatusCode());
        $this->assertSame('application/vnd.api+json', $response->getHeaderLine('Content-Type'));
        $data = json_decode((string) $response->getBody(), true);
        $this->assertIsArray($data);
        $this->assertArrayHasKey('errors', $data);
        $this->assertIsArray($data['errors']);
        $this->assertNotEmpty($data['errors']);
        $err = $data['errors'][0];
        $this->assertSame('500', $err['status']);
        $this->assertSame('RuntimeException', $err['title']);
        $this->assertStringContainsString('Boom', (string) $err['detail']);
    }

    public function testWhoopsHtmlInDebugMode(): void
    {
        // Enable debug for this test
        putenv('APP_DEBUG=true');

        $root = dirname(__DIR__);
        /** @var object $app */
        $app = require $root . '/bootstrap/app.php';
        $this->assertInstanceOf(\Phred\Http\Kernel::class, $app);

        $request = (new ServerRequest('GET', '/_phred/error'))
            ->withHeader('Accept', 'text/html');
        $response = $app->handle($request);

        $this->assertSame(500, $response->getStatusCode());
        $this->assertStringContainsString('text/html', $response->getHeaderLine('Content-Type'));
        $html = (string) $response->getBody();
        $this->assertNotSame('', $html);
        $this->assertStringContainsString('Whoops', $html);
    }
}