<?php
declare(strict_types=1);
namespace App\Tests;
use App\Ingest\ImageProcessor;
use PHPUnit\Framework\TestCase;

final class ImageProcessorTest extends TestCase
{
    private function tinyJpegBase64(): string {
        $im = imagecreatetruecolor(8, 8);
        ob_start(); imagejpeg($im); $bytes = ob_get_clean();
        return base64_encode($bytes);
    }
    public function testReencodeProducesJpeg(): void {
        $r = ImageProcessor::reencode($this->tinyJpegBase64());
        $this->assertTrue($r['ok']);
        $this->assertSame("\xFF\xD8", substr($r['bytes'], 0, 2)); // JPEG magic
        $this->assertSame(32, strlen($r['uuid']));
        $this->assertSame(64, strlen($r['hash']));
    }
    public function testRejectsNonImage(): void {
        $r = ImageProcessor::reencode(base64_encode("not an image <?php echo 1; ?>"));
        $this->assertFalse($r['ok']);
    }
    public function testRejectsBadBase64(): void {
        $this->assertFalse(ImageProcessor::reencode('%%%not-base64%%%')['ok']);
    }
}