forked from mirror/pixelfed
72 lines
1.7 KiB
PHP
72 lines
1.7 KiB
PHP
<?php
|
|
|
|
namespace App\Services;
|
|
|
|
use Illuminate\Support\Facades\Redis;
|
|
|
|
use App\{
|
|
Follower,
|
|
Profile
|
|
};
|
|
|
|
class FollowerService {
|
|
|
|
protected $profile;
|
|
public static $follower_prefix = 'px:profile:followers-v1.3:';
|
|
public static $following_prefix = 'px:profile:following-v1.3:';
|
|
|
|
public static function build()
|
|
{
|
|
return new self();
|
|
}
|
|
|
|
public function profile(Profile $profile)
|
|
{
|
|
$this->profile = $profile;
|
|
self::$follower_prefix .= $profile->id;
|
|
self::$following_prefix .= $profile->id;
|
|
return $this;
|
|
}
|
|
|
|
public function followers($limit = 100, $offset = 1)
|
|
{
|
|
if(Redis::zcard(self::$follower_prefix) == 0) {
|
|
$followers = $this->profile->followers()->pluck('profile_id');
|
|
$followers->map(function($i) {
|
|
Redis::zadd(self::$follower_prefix, $i, $i);
|
|
});
|
|
return Redis::zrevrange(self::$follower_prefix, $offset, $limit);
|
|
} else {
|
|
return Redis::zrevrange(self::$follower_prefix, $offset, $limit);
|
|
}
|
|
}
|
|
|
|
|
|
public function following($limit = 100, $offset = 1)
|
|
{
|
|
if(Redis::zcard(self::$following_prefix) == 0) {
|
|
$following = $this->profile->following()->pluck('following_id');
|
|
$following->map(function($i) {
|
|
Redis::zadd(self::$following_prefix, $i, $i);
|
|
});
|
|
return Redis::zrevrange(self::$following_prefix, $offset, $limit);
|
|
} else {
|
|
return Redis::zrevrange(self::$following_prefix, $offset, $limit);
|
|
}
|
|
}
|
|
|
|
public static function follows(string $actor, string $target)
|
|
{
|
|
$key = self::$follower_prefix . $target;
|
|
if(Redis::zcard($key) == 0) {
|
|
$p = Profile::findOrFail($target);
|
|
self::build()->profile($p)->followers(1);
|
|
self::build()->profile($p)->following(1);
|
|
return (bool) Redis::zrank($key, $actor);
|
|
} else {
|
|
return (bool) Redis::zrank($key, $actor);
|
|
}
|
|
}
|
|
|
|
}
|