Basic user management

app/Domains/MessageSystem/Actions/SendMessage/SendMessageCommand.php

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+<?php
+
+namespace App\Domains\MessageSystem\Actions\SendMessage;
+
+use App\Enumerations\MessageType;
+use Illuminate\Support\Facades\Mail;
+
+class SendMessageCommand {
+    private SendMessageRequest $request;
+
+    public function __construct(SendMessageRequest $request) {
+        $this->request = $request;
+    }
+
+    public function send() : SendMessageResponse {
+        $response =  new SendMessageResponse();
+
+        foreach ($this->request->messageTypes as $messageType) {
+            switch (true) {
+                case $messageType->value === MessageType::EMAIL->value:
+                    $this->sendAsEmail();
+                    break;
+
+                case $messageType->value === MessageType::INTERNAL->value:
+                    $this->sendAsInternalMessage();
+                    break;
+            }
+        }
+
+        return $response;
+    }
+
+    private function sendAsEmail() {
+        foreach ($this->request->recipient->getEmailAddresses() as $emailAddress) {
+            Mail::html($this->request->message, function ($message) use ($emailAddress) {
+                $message
+                    ->to($emailAddress->getValue(), $this->request->recipient->getName())
+                    ->subject($this->request->subject);
+            });
+        }
+    }
+
+    private function sendAsInternalMessage() {
+    }
+}

app/Domains/MessageSystem/Actions/SendMessage/SendMessageRequest.php

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+<?php
+
+namespace App\Domains\MessageSystem\Actions\SendMessage;
+
+use App\Enumerations\MessageType;
+use App\Models\User;
+use App\ValueObjects\EmailAddress;
+use App\ValueObjects\MessageRecipient;
+
+class SendMessageRequest {
+    public string $message;
+    public string $subject;
+
+    public MessageRecipient $recipient;
+
+    /** @var MessageType[] */
+    public array $messageTypes;
+
+    public function __construct(
+        string $message,
+        string $subject,
+        MessageRecipient $recipient,
+        array $messageTypes
+    ) {
+        $this->message = $message;
+        $this->recipient = $recipient;
+        $this->subject = $subject;
+        $this->messageTypes = $messageTypes;
+    }
+}

app/Domains/MessageSystem/Actions/SendMessage/SendMessageResponse.php

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+<?php
+
+namespace App\Domains\MessageSystem\Actions\SendMessage;
+
+class SendMessageResponse {
+
+}