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File: /home/xedaptot/ai.naniguide.com/tests/Unit/UrlServiceTest.php
<?php

namespace Tests\Unit;

use App\Services\UrlService;
use App\Library\StringHelper;
use App\Model\TrackingDomain;
use Illuminate\Support\Facades\Route;
use Tests\TestCase;

class UrlServiceTest extends TestCase
{
    protected UrlService $service;

    protected function setUp(): void
    {
        parent::setUp();

        $this->service = new UrlService();

        // Set base URL
        config()->set('app.url', 'https://example.com');

        // @important: route("named route") does not respect config(app.url)
        //             it uses the actual request url or localhost (in console)
        // So, force it in test
        $this->app['url']->forceRootUrl(config('app.url'));
    }

    public function test_it_prepends_app_url_for_relative_img_src_case_insensitive()
    {
        $html = '<html><body><iMg SrC="/images/logo.png"></body></html>';

        $result = $this->service->transformHtmlUrls($html, 123);

        $this->assertStringContainsString('https://example.com/images/logo.png', $result);
    }

    public function test_it_does_not_modify_absolute_img_src()
    {
        $html = '<html><body><img src="https://cdn.example.org/image.png"></body></html>';

        $result = $this->service->transformHtmlUrls($html, 123);

        $this->assertStringContainsString('https://cdn.example.org/image.png', $result);
    }

    public function test_it_does_not_throw_exception_for_empty_src()
    {
        $html = '<html><body><img src=""></body></html>';
        $this->service->transformHtmlUrls($html, 123);
        $this->assertTrue(true);
    }

    public function test_it_throws_exception_for_invalid_app_url()
    {
        config()->set('app.url', 'invalid-url');

        $this->expectException(\Exception::class);
        $this->expectExceptionMessage('Invalid app.url setting');

        $this->service->getAppUrl();
    }

    public function test_it_makes_links_trackable_no_matter_capitalize_A_or_lowercase_a_insensitive()
    {
        $html = '<html><body><A href="https://target.com/page">Click</A></body></html>';
        $result = $this->service->transformHtmlUrls($html, 123);

        // The final link should now be a Laravel route URL with encoded params
        // Notice that & shall be converted to &amp; after DOM processing
        $this->assertStringContainsString(
            'http://example.com/p/click?url=aHR0cHM6Ly90YXJnZXQuY29tL3BhZ2U&amp;message_id=MTIz',
            $result
        );

        $html = '<html><body><a href="https://target.com/page">Click</a></body></html>';
        $result = $this->service->transformHtmlUrls($html, 123);
        $this->assertStringContainsString(
            'http://example.com/p/click?url=aHR0cHM6Ly90YXJnZXQuY29tL3BhZ2U&amp;message_id=MTIz',
            $result
        );
    }

    public function test_it_ignores_non_web_links()
    {
        $html = '<html><body><a href="mailto:[email protected]">Mail</a><a href="tel:+123456789">Call</a></body></html>';

        $result = $this->service->transformHtmlUrls($html, 123);

        $this->assertStringContainsString('mailto:[email protected]', $result);
        $this->assertStringContainsString('tel:+123456789', $result);
    }

    public function test_it_throws_for_invalid_href()
    {
        $this->expectException(\Exception::class);
        $html = '<html><body><a href="http:///broken-url">Click</a></body></html>';
        $this->service->transformHtmlUrls($html, 123);
    }

    public function test_it_generates_tracking_url()
    {
        $url = '/relative/path/example.jpg';
        $domain = $this->createMock(TrackingDomain::class);
        $domain->method('generateTrackingUrl')
            ->willReturnCallback(fn($url) => "https://track.example.com/t=".StringHelper::base64UrlEncode($url));
        $html = "<html><body><img src='{$url}'>Click</a></body></html>";
        $result = $this->service->transformHtmlUrls($html, 123, $domain);
        $this->assertStringContainsString('https://track.example.com/t=aHR0cHM6Ly9leGFtcGxlLmNvbS9yZWxhdGl2ZS9wYXRoL2V4YW1wbGUuanBn', $result);
    }
}