<?php
declare(strict_types=1);

namespace App\Tests\Unit;

use App\Enum\LabelType;
use App\Model\Isbn;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\TestCase;

final class IsbnTest extends TestCase {
	/**
	 * @return iterable<string, array{string, ?string}>
	 */
	public static function values(): iterable {
		yield 'ISBN-10' => ['0306406152', '9780306406157'];
		yield 'ISBN-10 with hyphens' => ['0-306-40615-2', '9780306406157'];
		yield 'ISBN-10 ending in X' => ['080442957X', '9780804429573'];
		yield 'lower-case X' => ['080442957x', '9780804429573'];
		yield 'ISBN-13' => ['9788373843455', '9788373843455'];
		yield 'ISBN-13 with hyphens' => ['978-83-7384-345-5', '9788373843455'];
		yield '979 prefix' => ['9791034900107', '9791034900107'];
		yield 'bad ISBN-10 check digit' => ['0306406153', null];
		yield 'bad ISBN-13 check digit' => ['9788373843456', null];
		yield 'not a book prefix' => ['9770406063008', null];
		yield 'wrong length' => ['12345', null];
		yield 'text' => ['not a number', null];
	}

	#[DataProvider('values')]
	public function testConversion(string $value, ?string $expected): void {
		self::assertSame($expected, Isbn::toIsbn13($value));
	}

	public function testOnlyIsbn13PassesLabelValidation(): void {
		self::assertTrue(LabelType::ISBN->isValid('9780306406157'));
		self::assertFalse(LabelType::ISBN->isValid('0306406152'));
	}
}