<?php

declare(strict_types=1);

namespace Blax\WebRtc\Tests;

use Blax\WebRtc\Recording\FileRecordingStore;
use PHPUnit\Framework\TestCase;

final class FileRecordingStoreTest extends TestCase
{
    private string $dir;

    protected function setUp(): void
    {
        $this->dir = sys_get_temp_dir().'/blax-webrtc-rec-'.bin2hex(random_bytes(4));
    }

    protected function tearDown(): void
    {
        if (! is_dir($this->dir)) {
            return;
        }
        foreach (glob($this->dir.'/*/*') ?: [] as $file) {
            @unlink($file);
        }
        foreach (glob($this->dir.'/*') ?: [] as $sub) {
            @rmdir($sub);
        }
        @rmdir($this->dir);
    }

    public function test_appends_chunks_and_finalizes_the_full_audio(): void
    {
        $store = new FileRecordingStore($this->dir, 'webm');

        $store->append('presence-lobby', 'peer1', 'CHUNK-A');
        $store->append('presence-lobby', 'peer1', 'CHUNK-B');
        $path = $store->finalize('presence-lobby', 'peer1');

        $this->assertNotNull($path);
        $this->assertFileExists($path);
        $this->assertStringEndsWith('.webm', $path);
        $this->assertSame('CHUNK-ACHUNK-B', file_get_contents($path));
    }

    public function test_finalize_without_any_data_returns_null(): void
    {
        $this->assertNull((new FileRecordingStore($this->dir))->finalize('r', 'p'));
    }

    public function test_room_and_peer_names_are_sanitized_into_a_contained_path(): void
    {
        $store = new FileRecordingStore($this->dir);

        $store->append('room/../x', 'peer id!', 'X');
        $path = $store->finalize('room/../x', 'peer id!');

        $this->assertNotNull($path);
        $this->assertStringStartsWith($this->dir, $path); // can't escape the recording dir
        $this->assertFileExists($path);
    }
}