ladill-hosting/app/Services/Hosting/HostingExpiryAlertService.php

<?php

namespace App\Services\Hosting;

use App\Models\HostingAccount;
use App\Notifications\HostingExpiringNotification;

/** Sends one-time hosting plan expiry reminders. */
class HostingExpiryAlertService
{
    /** @return list<int> */
    public function milestones(): array
    {
        return array_values(array_map(
            'intval',
            (array) config('notifications.hosting_expiry_milestones', [30, 14, 7, 3, 1])
        ));
    }

    public function checkAll(): int
    {
        $sent = 0;

        HostingAccount::query()
            ->where('status', HostingAccount::STATUS_ACTIVE)
            ->whereNotNull('expires_at')
            ->where('expires_at', '>', now())
            ->with('user')
            ->each(function (HostingAccount $account) use (&$sent): void {
                if ($this->checkAccount($account)) {
                    $sent++;
                }
            });

        return $sent;
    }

    public function checkAccount(HostingAccount $account): bool
    {
        if (! $account->expires_at || ! $account->user || $account->expires_at->isPast()) {
            return false;
        }

        $daysRemaining = $this->daysUntilExpiry($account);
        if (! in_array($daysRemaining, $this->milestones(), true)) {
            return false;
        }

        $metadata = is_array($account->metadata) ? $account->metadata : [];
        $sent = array_map('intval', (array) ($metadata['expiry_alerts_sent'] ?? []));
        if (in_array($daysRemaining, $sent, true)) {
            return false;
        }

        $account->user->notify(new HostingExpiringNotification($account, $daysRemaining));

        $metadata['expiry_alerts_sent'] = array_values(array_unique([...$sent, $daysRemaining]));
        $account->update(['metadata' => $metadata]);

        return true;
    }

    public function resetAlerts(HostingAccount $account): void
    {
        $metadata = is_array($account->metadata) ? $account->metadata : [];
        unset($metadata['expiry_alerts_sent']);
        $account->update(['metadata' => $metadata]);
    }

    private function daysUntilExpiry(HostingAccount $account): int
    {
        return (int) now()->startOfDay()->diffInDays(
            $account->expires_at->copy()->startOfDay(),
            false
        );
    }
}