<?php
declare(strict_types=1);

namespace Phred\Tests\Feature;

use PHPUnit\Framework\TestCase;
use Phred\Http\Kernel;
use Nyholm\Psr7\ServerRequest;

class M13FeaturesTest extends TestCase
{
    public function test_openapi_json_route(): void
    {
        // Ensure file exists for test
        if (!is_dir('public')) {
            mkdir('public', 0777, true);
        }
        file_put_contents('public/openapi.json', json_encode(['openapi' => '3.0.0']));

        $kernel = new Kernel();
        $request = new ServerRequest('GET', '/_phred/openapi'); // Use extension-less path
        $response = $kernel->handle($request);

        $this->assertEquals(200, $response->getStatusCode());
        $this->assertEquals('application/json', $response->getHeaderLine('Content-Type'));
        $body = json_decode((string) $response->getBody(), true);
        $this->assertEquals('3.0.0', $body['openapi']);
    }

    public function test_openapi_ui_route(): void
    {
        $kernel = new Kernel();
        $request = new ServerRequest('GET', '/_phred/docs');
        $response = $kernel->handle($request);

        $this->assertEquals(200, $response->getStatusCode());
        $this->assertEquals('text/html', $response->getHeaderLine('Content-Type'));
        $body = (string) $response->getBody();
        $this->assertStringContainsString('<redoc', $body);
        $this->assertStringContainsString('openapi.json', $body);
    }

    public function test_cli_generate_openapi(): void
    {
        if (file_exists('public/openapi.json')) {
            unlink('public/openapi.json');
        }

        $output = [];
        $result = 0;
        exec('php bin/phred generate:openapi', $output, $result);

        $this->assertEquals(0, $result);
        $this->assertFileExists('public/openapi.json');

        $json = json_decode(file_get_contents('public/openapi.json'), true);
        $this->assertEquals('Phred API', $json['info']['title']);
        $this->assertArrayHasKey('/_phred/health', $json['paths']);
    }
}