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Add TrendingHashtagService

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Daniel Supernault 2022-12-27 04:13:34 -07:00
parent 3f9e113cb7
commit 4fd12b063b
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<?php
namespace App\Services;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Redis;
use App\Hashtag;
use App\StatusHashtag;
class TrendingHashtagService
{
const CACHE_KEY = 'api:discover:v1.1:trending:hashtags';
public static function key($k = null)
{
return self::CACHE_KEY . $k;
}
public static function getBlockedHashtags()
{
return Cache::remember(self::key(':is_banned'), 1209600, function() {
return Hashtag::whereIsBanned(true)->pluck('id')->toArray();
});
}
public static function getNonTrendingHashtags()
{
return Cache::remember(self::key(':can_trend'), 1209600, function() {
return Hashtag::whereCanTrend(false)->pluck('id')->toArray();
});
}
public static function getNsfwHashtags()
{
return Cache::remember(self::key(':is_nsfw'), 1209600, function() {
return Hashtag::whereIsNsfw(true)->pluck('id')->toArray();
});
}
public static function getMinRecentId()
{
return Cache::remember(self::key('-min-id'), 86400, function() {
$minId = StatusHashtag::where('created_at', '>', now()->subMinutes(config('trending.hashtags.recency_mins')))->first();
if(!$minId) {
return 0;
}
return $minId->id;
});
}
public static function getTrending()
{
$minId = self::getMinRecentId();
$skipIds = array_merge(self::getBlockedHashtags(), self::getNonTrendingHashtags(), self::getNsfwHashtags());
return Cache::remember(self::CACHE_KEY, config('trending.hashtags.ttl'), function() use($minId, $skipIds) {
return StatusHashtag::select('hashtag_id', \DB::raw('count(*) as total'))
->whereNotIn('hashtag_id', $skipIds)
->where('id', '>', $minId)
->groupBy('hashtag_id')
->orderBy('total', 'desc')
->take(config('trending.hashtags.limit'))
->get()
->map(function($h) {
$hashtag = Hashtag::find($h->hashtag_id);
if(!$hashtag) {
return;
}
return [
'id' => $h->hashtag_id,
'total' => $h->total,
'name' => '#'.$hashtag->name,
'hashtag' => $hashtag->name,
'url' => $hashtag->url()
];
})
->filter()
->values();
});
}
public static function del($k)
{
return Cache::forget(self::key($k));
}
public static function refresh()
{
Cache::forget(self::key(':is_banned'));
Cache::forget(self::key(':is_nsfw'));
Cache::forget(self::key(':can_trend'));
Cache::forget(self::key('-min-id'));
Cache::forget(self::key());
}
}