MSG Strategy

<?php declare(strict_types = 1);


class MessageService
{
    protected SenderStrategy $senderStrategy;

    public function __construct(SenderStrategy $senderStrategy)
    {
        $this->senderStrategy = $senderStrategy;
    }

    public function send(string $message)
    {
        $this->senderStrategy->send($message);
    }
}

interface SenderStrategy
{
    public function send(string $message);
}

class EmailChannel implements SenderStrategy
{
    public function send(string $message)
    {
        $success = file_put_contents('email', $message);
        if ($success) print 'Email Message sent!'."\n";
    }
}

class SMSChannel implements SenderStrategy
{
    public function send(string $message)
    {
        $success = file_put_contents('sms', $message);
        if ($success) print 'SMS Message sent!'."\n";
    }
}

class PushNotificationChannel implements SenderStrategy
{
    public function send(string $message)
    {
        $success = file_put_contents('push_notification', $message);
        if ($success) print 'Push notification Message sent!'."\n";
    }
}

class CartaChannel implements SenderStrategy
{
    public function send(string $message)
    {
        $success = file_put_contents('carta', $message);
        if ($success) print 'Carta Message sent!'."\n";
    }
}

$user = (object) [
    'subscription_channels' => [
        SMSChannel::class,
        EmailChannel::class,
        PushNotificationChannel::class,
        CartaChannel::class,
    ] ,
];

$messagemDoSite = 'Olhe essa promoção'."\n";


foreach ($user->subscription_channels as $channel)
{
    $messageService = new MessageService(
        new $channel(),
    );

    $messageService->send($messagemDoSite);
}