Send Brrr push notifications for new webmentions

Dispatches a queued job to POST to a configured Brrr webhook whenever
a brand-new webmention is saved, so replies/likes/reposts show up as
push notifications instead of requiring a manual check of the site.

.env.example

@@ -78,6 +78,8 @@ SESSION_SAME_SITE=strict
 
 LOG_SLACK_WEBHOOK_URL=
 
+BRRR_WEBHOOK_URL=
+
 FLARE_KEY=
 
 IGNITION_OPEN_AI_KEY=

app/Jobs/NotifyBrrrOfWebMention.php

@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Jobs;
+
+use App\Models\WebMention;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Support\Facades\Http;
+
+class NotifyBrrrOfWebMention implements ShouldQueue
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    /**
+     * Create a new job instance.
+     */
+    public function __construct(
+        protected WebMention $webMention
+    ) {}
+
+    /**
+     * Execute the job.
+     */
+    public function handle(): void
+    {
+        $webhookUrl = config('services.brrr.webhook_url');
+
+        if (blank($webhookUrl)) {
+            return;
+        }
+
+        Http::post($webhookUrl, [
+            'title' => $this->title(),
+            'message' => "From {$this->webMention->source}",
+            'open_url' => $this->webMention->target,
+        ]);
+    }
+
+    /**
+     * Build a notification title based on the webmention type.
+     */
+    private function title(): string
+    {
+        return match ($this->webMention->type) {
+            'in-reply-to' => 'New reply',
+            'like-of' => 'New like',
+            'repost-of' => 'New repost',
+            default => 'New webmention',
+        };
+    }
+}

app/Jobs/ProcessWebMention.php

@@ -96,6 +96,7 @@ class ProcessWebMention implements ShouldQueue
         $webmention->type = $type;
         $webmention->mf2 = json_encode($microformats);
         $webmention->save();
+        dispatch(new NotifyBrrrOfWebMention($webmention));
     }
 
     /**

config/services.php

@@ -39,4 +39,8 @@ return [
         'token' => env('CLOUDCONVERT_API_TOKEN'),
     ],
 
+    'brrr' => [
+        'webhook_url' => env('BRRR_WEBHOOK_URL'),
+    ],
+
 ];

tests/Unit/Jobs/NotifyBrrrOfWebMentionJobTest.php

@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\Jobs;
+
+use App\Jobs\NotifyBrrrOfWebMention;
+use App\Models\WebMention;
+use Illuminate\Http\Client\Request;
+use Illuminate\Support\Facades\Http;
+use PHPUnit\Framework\Attributes\Test;
+use Tests\TestCase;
+
+class NotifyBrrrOfWebMentionJobTest extends TestCase
+{
+    #[Test]
+    public function it_posts_a_reply_notification_to_the_brrr_webhook(): void
+    {
+        config(['services.brrr.webhook_url' => 'https://api.brrr.now/v1/br_usr_test']);
+        Http::fake();
+
+        $webMention = WebMention::factory()->make([
+            'source' => 'https://example.org/reply/1',
+            'target' => 'https://jonnybarnes.uk/notes/1',
+            'type' => 'in-reply-to',
+        ]);
+
+        $job = new NotifyBrrrOfWebMention($webMention);
+        $job->handle();
+
+        Http::assertSent(function (Request $request) {
+            return $request->url() === 'https://api.brrr.now/v1/br_usr_test'
+                && $request['title'] === 'New reply'
+                && $request['message'] === 'From https://example.org/reply/1'
+                && $request['open_url'] === 'https://jonnybarnes.uk/notes/1';
+        });
+    }
+
+    #[Test]
+    public function it_titles_notifications_by_webmention_type(): void
+    {
+        config(['services.brrr.webhook_url' => 'https://api.brrr.now/v1/br_usr_test']);
+        Http::fake();
+
+        foreach ([
+            'in-reply-to' => 'New reply',
+            'like-of' => 'New like',
+            'repost-of' => 'New repost',
+            'something-else' => 'New webmention',
+        ] as $type => $expectedTitle) {
+            $webMention = WebMention::factory()->make(['type' => $type]);
+
+            (new NotifyBrrrOfWebMention($webMention))->handle();
+
+            Http::assertSent(fn (Request $request) => $request['title'] === $expectedTitle);
+        }
+    }
+
+    #[Test]
+    public function it_does_nothing_when_no_webhook_url_is_configured(): void
+    {
+        config(['services.brrr.webhook_url' => null]);
+        Http::fake();
+
+        $webMention = WebMention::factory()->make();
+
+        (new NotifyBrrrOfWebMention($webMention))->handle();
+
+        Http::assertNothingSent();
+    }
+}

tests/Unit/Jobs/ProcessWebMentionJobTest.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Tests\Unit\Jobs;
 
 use App\Exceptions\RemoteContentNotFoundException;
+use App\Jobs\NotifyBrrrOfWebMention;
 use App\Jobs\ProcessWebMention;
 use App\Jobs\SaveProfileImage;
 use App\Models\Note;
@@ -71,6 +72,7 @@ class ProcessWebMentionJobTest extends TestCase
         $job->handle($parser);
 
         Queue::assertPushed(SaveProfileImage::class);
+        Queue::assertPushed(NotifyBrrrOfWebMention::class);
         $this->assertDatabaseHas('webmentions', [
             'source' => $source,
             'type' => 'like-of',
@@ -104,6 +106,7 @@ class ProcessWebMentionJobTest extends TestCase
         $job->handle($parser);
 
         Queue::assertPushed(SaveProfileImage::class);
+        Queue::assertNotPushed(NotifyBrrrOfWebMention::class);
         $this->assertDatabaseHas('webmentions', [
             'source' => $source,
             'type' => 'in-reply-to',
@@ -206,6 +209,7 @@ class ProcessWebMentionJobTest extends TestCase
         $job = new ProcessWebMention($note, $source);
         $job->handle($parser);
 
+        Queue::assertPushed(NotifyBrrrOfWebMention::class);
         $this->assertGreaterThan(255, strlen($source));
         $this->assertDatabaseHas('webmentions', [
             'source' => $source,