forked from mirror/pixelfed
87 lines
2.6 KiB
PHP
87 lines
2.6 KiB
PHP
<?php
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namespace App\Services;
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use Illuminate\Support\Facades\Cache;
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use Illuminate\Support\Facades\Redis;
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use App\Hashtag;
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use App\StatusHashtag;
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use App\HashtagFollow;
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class HashtagService
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{
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const FOLLOW_KEY = 'pf:services:hashtag:following:v1:';
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const FOLLOW_PIDS_KEY = 'pf:services:hashtag-follows:v1:';
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public static function get($id)
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{
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return Cache::remember('services:hashtag:by_id:' . $id, 3600, function() use($id) {
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$tag = Hashtag::find($id);
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if(!$tag) {
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return [];
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}
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return [
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'name' => $tag->name,
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'slug' => $tag->slug,
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];
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});
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}
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public static function count($id)
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{
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return Cache::remember('services:hashtag:public-count:by_id:' . $id, 86400, function() use($id) {
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return StatusHashtag::whereHashtagId($id)->whereStatusVisibility('public')->count();
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});
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}
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public static function isFollowing($pid, $hid)
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{
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$res = Redis::zscore(self::FOLLOW_KEY . $hid, $pid);
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if($res) {
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return true;
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}
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$synced = Cache::get(self::FOLLOW_KEY . 'acct:' . $pid . ':synced');
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if(!$synced) {
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$tags = HashtagFollow::whereProfileId($pid)
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->get()
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->each(function($tag) use($pid) {
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self::follow($pid, $tag->hashtag_id);
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});
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Cache::set(self::FOLLOW_KEY . 'acct:' . $pid . ':synced', true, 1209600);
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return (bool) Redis::zscore(self::FOLLOW_KEY . $hid, $pid) >= 1;
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}
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return false;
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}
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public static function follow($pid, $hid)
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{
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Cache::forget(self::FOLLOW_PIDS_KEY . $hid);
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return Redis::zadd(self::FOLLOW_KEY . $hid, $pid, $pid);
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}
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public static function unfollow($pid, $hid)
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{
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Cache::forget(self::FOLLOW_PIDS_KEY . $hid);
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return Redis::zrem(self::FOLLOW_KEY . $hid, $pid);
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}
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public static function following($hid, $start = 0, $limit = 10)
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{
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$synced = Cache::get(self::FOLLOW_KEY . 'acct-following:' . $hid . ':synced');
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if(!$synced) {
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$tags = HashtagFollow::whereHashtagId($hid)
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->get()
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->each(function($tag) use($hid) {
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self::follow($tag->profile_id, $hid);
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});
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Cache::set(self::FOLLOW_KEY . 'acct-following:' . $hid . ':synced', true, 1209600);
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return Redis::zrevrange(self::FOLLOW_KEY . $hid, $start, $limit);
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}
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return Redis::zrevrange(self::FOLLOW_KEY . $hid, $start, $limit);
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}
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}
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