pixelfed/app/Services/NotificationService.php

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<?php
namespace App\Services;
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use Cache;
use Illuminate\Support\Facades\Redis;
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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:';
const MASTODON_TYPES = [
'follow',
'follow_request',
'mention',
'reblog',
'favourite',
'poll',
'status'
];
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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) {
$n = self::getNotification($id);
if($n != null) {
$res->push($n);
}
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}
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 $ids;
}
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public static function getMax($id = false, $start = 0, $limit = 10)
{
$ids = self::getRankedMaxId($id, $start, $limit);
if(empty($ids)) {
return [];
}
$res = collect([]);
foreach($ids as $id) {
$n = self::getNotification($id);
if($n != null) {
$res->push($n);
}
}
return $res->toArray();
}
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public static function getMin($id = false, $start = 0, $limit = 10)
{
$ids = self::getRankedMinId($id, $start, $limit);
if(empty($ids)) {
return [];
}
$res = collect([]);
foreach($ids as $id) {
$n = self::getNotification($id);
if($n != null) {
$res->push($n);
}
}
return $res->toArray();
}
public static function getMaxMastodon($id = false, $start = 0, $limit = 10)
{
$ids = self::getRankedMaxId($id, $start, $limit);
if(empty($ids)) {
return [];
}
$res = collect([]);
foreach($ids as $id) {
$n = self::getNotification($id);
if($n != null && in_array($n['type'], self::MASTODON_TYPES)) {
$n['account'] = AccountService::getMastodon($n['account']['id']);
if(isset($n['relationship'])) {
unset($n['relationship']);
}
if(isset($n['status'])) {
$n['status'] = StatusService::getMastodon($n['status']['id'], false);
}
$res->push($n);
}
}
return $res->toArray();
}
public static function getMinMastodon($id = false, $start = 0, $limit = 10)
{
$ids = self::getRankedMinId($id, $start, $limit);
if(empty($ids)) {
return [];
}
$res = collect([]);
foreach($ids as $id) {
$n = self::getNotification($id);
if($n != null && in_array($n['type'], self::MASTODON_TYPES)) {
$n['account'] = AccountService::getMastodon($n['account']['id']);
if(isset($n['relationship'])) {
unset($n['relationship']);
}
if(isset($n['status'])) {
$n['status'] = StatusService::getMastodon($n['status']['id'], false);
}
$res->push($n);
}
}
return $res->toArray();
}
public static function getRankedMaxId($id = false, $start = null, $limit = 10)
{
if(!$start || !$id) {
return [];
}
return array_keys(Redis::zrevrangebyscore(self::CACHE_KEY.$id, $start, '-inf', [
'withscores' => true,
'limit' => [1, $limit]
]));
}
public static function getRankedMinId($id = false, $end = null, $limit = 10)
{
if(!$end || !$id) {
return [];
}
return array_keys(Redis::zrevrangebyscore(self::CACHE_KEY.$id, '+inf', $end, [
'withscores' => true,
'limit' => [0, $limit]
]));
}
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public static function set($id, $val)
{
return Redis::zadd(self::CACHE_KEY . $id, $val, $val);
}
public static function del($id, $val)
{
Cache::forget('service:notification:' . $val);
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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)
{
return Cache::remember('service:notification:'.$id, now()->addDays(3), function() use($id) {
$n = Notification::with('item')->find($id);
if(!$n) {
return null;
}
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$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 $notification)
{
return Cache::remember('service:notification:'.$notification->id, now()->addDays(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;
}
}