<?php

declare(strict_types=1);

use Domain\Models\ValueObjects\PictureMetadata;

describe('PictureMetadata Value Object', function () {
    test('it can be instantiated with null values', function () {
        // GIVEN & WHEN
        $metadata = new PictureMetadata();

        // THEN
        expect($metadata->alt)->toBeNull()
            ->and($metadata->title)->toBeNull();
    });

    test('it can be instantiated with valid alt and title', function () {
        // GIVEN
        $alt   = 'Belle image de chat';
        $title = 'Un chat qui joue';

        // WHEN
        $metadata = new PictureMetadata(alt: $alt, title: $title);

        // THEN
        expect($metadata->alt)->toBe($alt)
            ->and($metadata->title)->toBe($title);
    });

    test('it throws when alt is empty string', function () {
        // GIVEN
        $invalidAlt = '   ';

        // WHEN & THEN
        expect(fn () => new PictureMetadata(alt: $invalidAlt))
            ->toThrow(\InvalidArgumentException::class, 'Picture alt cannot be empty when provided.');
    });

    test('it throws when alt is shorter than 4 characters', function () {
        // GIVEN
        $shortAlt = 'abc';

        // WHEN & THEN
        expect(fn () => new PictureMetadata(alt: $shortAlt))
            ->toThrow(\InvalidArgumentException::class, 'Picture alt must be at least 4 characters.');
    });

    test('it throws when alt exceeds 75 characters', function () {
        // GIVEN
        $longAlt = str_repeat('a', 76);

        // WHEN & THEN
        expect(fn () => new PictureMetadata(alt: $longAlt))
            ->toThrow(\InvalidArgumentException::class, 'Picture alt cannot exceed 75 characters.');
    });

    test('it throws when title is empty string', function () {
        // GIVEN
        $invalidTitle = '   ';

        // WHEN & THEN
        expect(fn () => new PictureMetadata(title: $invalidTitle))
            ->toThrow(\InvalidArgumentException::class, 'Picture title cannot be empty when provided.');
    });

    test('it throws when title is shorter than 4 characters', function () {
        // GIVEN
        $shortTitle = 'xyz';

        // WHEN & THEN
        expect(fn () => new PictureMetadata(title: $shortTitle))
            ->toThrow(\InvalidArgumentException::class, 'Picture title must be at least 4 characters.');
    });

    test('it throws when title exceeds 75 characters', function () {
        // GIVEN
        $longTitle = str_repeat('b', 76);

        // WHEN & THEN
        expect(fn () => new PictureMetadata(title: $longTitle))
            ->toThrow(\InvalidArgumentException::class, 'Picture title cannot exceed 75 characters.');
    });
});