<?php

namespace MintyPHP\Module\Notifications\Providers;

use MintyPHP\App\AppContainer;
use MintyPHP\App\Module\Contracts\SessionProvider;
use MintyPHP\Http\SessionStoreInterface;
use MintyPHP\Module\Notifications\Service\NotificationService;

final class NotificationsSessionProvider implements SessionProvider
{
    private const SESSION_KEY = 'module.notifications.unread_count';

    public function populate(array $user, AppContainer $container): void
    {
        $userId = (int) ($user['id'] ?? 0);
        if ($userId <= 0) {
            unset($_SESSION[self::SESSION_KEY]);
            return;
        }

        $sessionStore = $container->get(SessionStoreInterface::class);
        $service = $container->get(NotificationService::class);
        if (!$sessionStore instanceof SessionStoreInterface || !$service instanceof NotificationService) {
            return;
        }

        $sessionStore->set(self::SESSION_KEY, $service->unreadCount($userId));
    }

    public function clear(): void
    {
        unset($_SESSION[self::SESSION_KEY]);
    }
}