<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Integrations\Divi\Release;

use LIT\MCP\Integrations\Divi\Release\DiviAdapters;
use LIT\MCP\Integrations\Divi\Release\DiviReference;
use PHPUnit\Framework\TestCase;

final class DiviReferenceTest extends TestCase
{
    public function testEveryMirrorHasAnExpectedFingerprintAndAReferenceSource(): void
    {
        $ids = array_map(static fn ($mirror): string => $mirror->id, DiviAdapters::mirrors());
        sort($ids);
        $expected = DiviReference::expected();

        self::assertSame($ids, array_keys($expected));
        foreach ($expected as $id => $hash) {
            self::assertMatchesRegularExpression('/^[0-9a-f]{64}$/', $hash, $id);
            self::assertNotNull(DiviReference::readSource($id, (string) DiviReference::sourceDir()), $id);
        }
    }

    public function testWritesAndReadsExpectedFingerprintsSorted(): void
    {
        $file = (string) tempnam(sys_get_temp_dir(), 'lit');

        try {
            DiviReference::writeExpected(['b' => str_repeat('b', 64), 'a' => str_repeat('a', 64)], $file);

            self::assertSame(['a' => str_repeat('a', 64), 'b' => str_repeat('b', 64)], DiviReference::expected($file));
            self::assertStringEndsWith("\n", (string) file_get_contents($file));
        } finally {
            unlink($file);
        }
    }

    public function testMissingOrBrokenFileMeansNoExpectations(): void
    {
        self::assertSame([], DiviReference::expected('/nonexistent/fingerprints.json'));
    }
}