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pixelfed/app/Services/NotificationService.php

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<?php
namespace App\Services;
use Cache, Redis;
use App\{
Notification,
Profile
};
use App\Transformer\Api\NotificationTransformer;
use League\Fractal;
use League\Fractal\Serializer\ArraySerializer;
use League\Fractal\Pagination\IlluminatePaginatorAdapter;
class NotificationService {
const CACHE_KEY = 'pf:services:notifications:ids:';
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public static function get($id, $start = 0, $stop = 400)
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{
$res = collect([]);
$key = self::CACHE_KEY . $id;
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$stop = $stop > 400 ? 400 : $stop;
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$ids = Redis::zrangebyscore($key, $start, $stop);
if(empty($ids)) {
$ids = self::coldGet($id, $start, $stop);
}
foreach($ids as $id) {
$res->push(self::getNotification($id));
}
return $res;
}
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public static function coldGet($id, $start = 0, $stop = 400)
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{
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$stop = $stop > 400 ? 400 : $stop;
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$ids = Notification::whereProfileId($id)
->latest()
->skip($start)
->take($stop)
->pluck('id');
foreach($ids as $key) {
self::set($id, $key);
}
return $ids;
}
public static function set($id, $val)
{
return Redis::zadd(self::CACHE_KEY . $id, $val, $val);
}
public static function del($id, $val)
{
return Redis::zrem(self::CACHE_KEY . $id, $val);
}
public static function add($id, $val)
{
return self::set($id, $val);
}
public static function rem($id, $val)
{
return self::del($id, $val);
}
public static function count($id)
{
return Redis::zcount(self::CACHE_KEY . $id, '-inf', '+inf');
}
public static function getNotification($id)
{
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return Cache::remember('service:notification:'.$id, now()->addMonths(3), function() use($id) {
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$n = Notification::with('item')->findOrFail($id);
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$fractal = new Fractal\Manager();
$fractal->setSerializer(new ArraySerializer());
$resource = new Fractal\Resource\Item($n, new NotificationTransformer());
return $fractal->createData($resource)->toArray();
});
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}
public static function setNotification(Notification $notification)
{
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return Cache::remember('service:notification:'.$notification->id, now()->addMonths(3), function() use($notification) {
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$fractal = new Fractal\Manager();
$fractal->setSerializer(new ArraySerializer());
$resource = new Fractal\Resource\Item($notification, new NotificationTransformer());
return $fractal->createData($resource)->toArray();
});
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}
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public static function warmCache($id, $stop = 400, $force = false)
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{
if(self::count($id) == 0 || $force == true) {
$ids = Notification::whereProfileId($id)
->latest()
->limit($stop)
->pluck('id');
foreach($ids as $key) {
self::set($id, $key);
}
return 1;
}
return 0;
}
}