80 lines
3.0 KiB
PHP
80 lines
3.0 KiB
PHP
<?php
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namespace App\Console\Commands;
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use App\Models\Device;
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use App\Models\Entity;
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use App\Services\NotificationService;
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use Illuminate\Console\Command;
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use Illuminate\Support\Facades\Cache;
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/**
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* Sweeps for alert conditions (device offline, low battery) and e-mails the SMTP add-on when a NEW
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* one appears. A per-condition cache flag dedups, so you get one mail when it happens — not one
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* every sweep — and the flag clears once the condition resolves (with hysteresis for batteries).
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*/
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class NotificationsSweepCommand extends Command
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{
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protected $signature = 'notifications:sweep';
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protected $description = 'E-mail on new alert conditions (device offline, low battery).';
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public function handle(NotificationService $notifier): int
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{
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// Nothing to do unless SMTP is configured.
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if ($notifier->config() === null) {
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return self::SUCCESS;
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}
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$this->sweepOffline($notifier);
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$this->sweepBatteries($notifier);
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return self::SUCCESS;
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}
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private function sweepOffline(NotificationService $notifier): void
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{
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foreach (Device::where('status', 'active')->where('demo', false)->get() as $device) {
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$key = "notified:offline:{$device->id}";
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if (! $device->isOnline()) {
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if (! Cache::has($key) && $notifier->notify('device_offline',
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__('notifications.device_offline_subject', ['name' => $device->name]),
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__('notifications.device_offline_body', ['name' => $device->name]))) {
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// Flag stays until the condition RESOLVES (cleared below) — one mail per
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// continuous outage, not one every 24h. The long TTL is just a leak guard.
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Cache::put($key, true, now()->addMonth());
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}
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} else {
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Cache::forget($key);
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}
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}
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}
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private function sweepBatteries(NotificationService $notifier): void
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{
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$batteries = Entity::where('type', 'battery')->with('device', 'state')->get();
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foreach ($batteries as $entity) {
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if ($entity->device === null || $entity->device->demo) {
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continue;
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}
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// Missing reading defaults to 100 (no alert); a genuine 0% is a dead battery and MUST
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// alert — so the threshold is simply < 20 (a real 0 included).
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$pct = (int) data_get($entity->state, 'state.percent', 100);
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$key = "notified:battery:{$entity->id}";
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if ($pct < 20) {
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if (! Cache::has($key) && $notifier->notify('low_battery',
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__('notifications.low_battery_subject', ['name' => $entity->device->name]),
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__('notifications.low_battery_body', ['name' => $entity->device->name, 'percent' => $pct]))) {
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Cache::put($key, true, now()->addMonth());
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}
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} elseif ($pct >= 25) {
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Cache::forget($key); // hysteresis so it doesn't flap around the threshold
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}
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}
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}
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}
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