#116 - integration with slack (#129)

* wip

* wip

* wip

* wip

* fix

* wip

* wip

* fix

* fix

* cs fix

* #116 - fix

* #116 - changed home-office icon

* Apply suggestions from code review

Co-authored-by: Krzysztof Rewak <krzysztof.rewak@gmail.com>

* #116 - cr fix

* #116 - cs fix

* #116 - cs fix

* Apply suggestions from code review

Co-authored-by: Ewelina Lasowy <56546832+EwelinaLasowy@users.noreply.github.com>

* #5 - bump codestyle

Co-authored-by: EwelinaLasowy <ewelina.lasowy@blumilk.pl>
Co-authored-by: Krzysztof Rewak <krzysztof.rewak@gmail.com>
Co-authored-by: Ewelina Lasowy <56546832+EwelinaLasowy@users.noreply.github.com>

app/Infrastructure/Slack/Handlers/Help.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Toby\Infrastructure\Slack\Handlers;
+
+use Spatie\SlashCommand\Request;
+use Spatie\SlashCommand\Response;
+use Toby\Infrastructure\Slack\Elements\Attachment;
+use Toby\Infrastructure\Slack\Traits\ListsHandlers;
+
+class Help extends SignatureHandler
+{
+    use ListsHandlers;
+
+    protected $signature = "toby pomoc";
+    protected $description = "Wyświetl wszystkie dostępne polecenia";
+
+    public function handle(Request $request): Response
+    {
+        $handlers = $this->findAvailableHandlers();
+
+        $attachmentFields = $this->mapHandlersToAttachments($handlers);
+
+        return $this->respondToSlack("Dostępne polecenia:")
+            ->withAttachment(
+                Attachment::create()
+                    ->setColor("good")
+                    ->useMarkdown()
+                    ->setFields($attachmentFields),
+            );
+    }
+}