<?php

use App\Enums\ImageProvenanceStatus;
use App\Services\Image\ImageProvenanceInspector;

/**
 * Bildkennzeichnung A.5: echte Fixture-Dateien (tests/Fixtures/images,
 * erzeugt mit generate-fixtures.php), keine Fake-Bilder.
 */
function provenanceFixture(string $name): string
{
    return base_path('tests/Fixtures/images/'.$name);
}

test('a camera jpeg with classic iptc yields an unsigned credit suggestion and no ai suggestion', function () {
    $result = (new ImageProvenanceInspector)->inspect(provenanceFixture('camera-iptc.jpg'));

    expect($result->status)->toBe(ImageProvenanceStatus::UnsignedMetadata)
        ->and($result->creditSuggestion())->toBe('Musterfirma GmbH / Anna Beispiel')
        ->and($result->derived['credit_suggestion_source'])->toBe('credit')
        ->and($result->suggestedAiDeclaration())->toBeNull()
        ->and($result->enforcedAiDeclaration())->toBeNull()
        ->and($result->iptc['byline'])->toBe('Anna Beispiel')
        ->and($result->iptc['copyright_notice'])->toBe('© 2026 Musterfirma GmbH')
        ->and($result->fileSha256)->toBe(hash_file('sha256', provenanceFixture('camera-iptc.jpg')));
});

test('xmp trainedAlgorithmicMedia as full iptc uri suggests ai_generated but never locks in phase one', function () {
    $result = (new ImageProvenanceInspector)->inspect(provenanceFixture('xmp-ai-generated.jpg'));

    expect($result->status)->toBe(ImageProvenanceStatus::UnsignedMetadata)
        ->and($result->iptc['digital_source_type'])->toBe('trainedAlgorithmicMedia')
        ->and($result->suggestedAiDeclaration()?->value)->toBe('ai_generated')
        ->and($result->enforcedAiDeclaration())->toBeNull()
        ->and($result->creditSuggestion())->toBe('KI-Bild / Musterfirma');
});

test('algorithmicallyEnhanced only sets the enhancement hint and takes the creator list as credit', function () {
    $result = (new ImageProvenanceInspector)->inspect(provenanceFixture('xmp-enhanced.jpg'));

    expect($result->suggestedAiDeclaration())->toBeNull()
        ->and($result->derived['enhancement_hint'])->toBeTrue()
        ->and($result->creditSuggestion())->toBe('Max Mustermann')
        ->and($result->derived['credit_suggestion_source'])->toBe('creator');
});

test('a png without metadata is absent, not an error', function () {
    $result = (new ImageProvenanceInspector)->inspect(provenanceFixture('plain.png'));

    expect($result->status)->toBe(ImageProvenanceStatus::Absent)
        ->and($result->creditSuggestion())->toBeNull()
        ->and($result->error)->toBeNull();
});

test('webp xmp digitalCapture suggests original and falls back to the copyright notice for the credit', function () {
    $result = (new ImageProvenanceInspector)->inspect(provenanceFixture('webp-capture.webp'));

    expect($result->status)->toBe(ImageProvenanceStatus::UnsignedMetadata)
        ->and($result->suggestedAiDeclaration()?->value)->toBe('original')
        ->and($result->creditSuggestion())->toBe('© Beispiel AG')
        ->and($result->derived['credit_suggestion_source'])->toBe('copyright_notice');
});

test('an unreadable file reports error instead of pretending there is no metadata', function () {
    $result = (new ImageProvenanceInspector)->inspect(provenanceFixture('broken.jpg'));

    expect($result->status)->toBe(ImageProvenanceStatus::Error)
        ->and($result->error)->not->toBeNull()
        ->and($result->toArray()['error']['class'])->toBe('ImagickException');
});

test('the result serialises with status, tool and duration for the image row', function () {
    $array = (new ImageProvenanceInspector)->inspect(provenanceFixture('camera-iptc.jpg'))->toArray();

    expect($array)->toHaveKeys(['status', 'file_sha256', 'tool', 'duration_ms', 'iptc', 'exif', 'derived'])
        ->and($array['tool'])->toStartWith('imagick ');
});