<?php

declare(strict_types=1);

namespace Apoloz\VideoExtractor\Tests\Unit;

use Apoloz\VideoExtractor\Http\HttpClient;
use Apoloz\VideoExtractor\Tests\TestCase;
use Illuminate\Support\Facades\Http;

class HttpClientTest extends TestCase
{
    public function test_converts_cp1251_body_to_utf8_from_header(): void
    {
        // Cyrillic "Трамп" encoded as Windows-1251 bytes.
        $cp1251 = "\xd2\xf0\xe0\xec\xef";

        Http::fake([
            'example.com/*' => Http::response(
                $cp1251,
                200,
                ['Content-Type' => 'application/json; charset=windows-1251'],
            ),
        ]);

        $client = new HttpClient();
        $response = $client->get('https://example.com/test');

        self::assertSame('Трамп', $client->bodyUtf8($response));
    }

    public function test_force_charset_overrides_header_detection(): void
    {
        // "Алена" encoded as Windows-1251 bytes, but the server declares UTF-8.
        $cp1251 = "\xc0\xeb\xe5\xed\xe0";

        Http::fake([
            'example.com/*' => Http::response(
                $cp1251,
                200,
                ['Content-Type' => 'application/json; charset=utf-8'],
            ),
        ]);

        $client = new HttpClient();
        $response = $client->get('https://example.com/test');

        // Forcing cp1251 recovers correct Cyrillic regardless of the header.
        self::assertSame('Алена', $client->bodyUtf8($response, 'Windows-1251'));
    }

    public function test_leaves_utf8_body_untouched(): void
    {
        Http::fake([
            'example.com/*' => Http::response('Привет', 200, ['Content-Type' => 'application/json; charset=utf-8']),
        ]);

        $client = new HttpClient();
        $response = $client->get('https://example.com/test');

        self::assertSame('Привет', $client->bodyUtf8($response));
    }

    public function test_returns_body_verbatim_when_no_charset(): void
    {
        Http::fake([
            'example.com/*' => Http::response('plain ascii', 200, ['Content-Type' => 'text/html']),
        ]);

        $client = new HttpClient();
        $response = $client->get('https://example.com/test');

        self::assertSame('plain ascii', $client->bodyUtf8($response));
    }

    public function test_detects_challenge_redirect(): void
    {
        // VK answers 429 on the challenge URL itself; in Http::fake the
        // effective URI mirrors the request URL, so we hit it directly.
        Http::fake([
            'vk.com/challenge.html*' => Http::response('challenge', 429),
        ]);

        $client = new HttpClient();

        $this->expectException(\RuntimeException::class);
        $this->expectExceptionMessage('JS challenge');
        $client->get('https://vk.com/challenge.html?hash429=abc');
    }
}