<?php namespace App\Services; use Illuminate\Support\Facades\Cache; use Illuminate\Support\Facades\Redis; use App\Follower; use App\Status; use App\Models\UserDomainBlock; class HomeTimelineService { const CACHE_KEY = 'pf:services:timeline:home:'; const FOLLOWER_FEED_POST_LIMIT = 10; public static function get($id, $start = 0, $stop = 10) { if($stop > 100) { $stop = 100; } return Redis::zrevrange(self::CACHE_KEY . $id, $start, $stop); } public static function getRankedMaxId($id, $start = null, $limit = 10) { if(!$start) { return []; } return array_keys(Redis::zrevrangebyscore(self::CACHE_KEY . $id, $start, '-inf', [ 'withscores' => true, 'limit' => [1, $limit - 1] ])); } public static function getRankedMinId($id, $end = null, $limit = 10) { if(!$end) { return []; } return array_keys(Redis::zrevrangebyscore(self::CACHE_KEY . $id, '+inf', $end, [ 'withscores' => true, 'limit' => [0, $limit] ])); } public static function add($id, $val) { if(self::count($id) >= 400) { Redis::zpopmin(self::CACHE_KEY . $id); } return Redis::zadd(self::CACHE_KEY .$id, $val, $val); } public static function rem($id, $val) { return Redis::zrem(self::CACHE_KEY . $id, $val); } public static function count($id) { return Redis::zcard(self::CACHE_KEY . $id); } public static function warmCache($id, $force = false, $limit = 100, $returnIds = false) { if(self::count($id) == 0 || $force == true) { Redis::del(self::CACHE_KEY . $id); $following = Cache::remember('profile:following:'.$id, 1209600, function() use($id) { $following = Follower::whereProfileId($id)->pluck('following_id'); return $following->push($id)->toArray(); }); $minId = SnowflakeService::byDate(now()->subMonths(6)); $filters = UserFilterService::filters($id); if($filters && count($filters)) { $following = array_diff($following, $filters); } $domainBlocks = UserDomainBlock::whereProfileId($id)->pluck('domain')->toArray(); $ids = Status::where('id', '>', $minId) ->whereIn('profile_id', $following) ->whereNull(['in_reply_to_id', 'reblog_of_id']) ->whereIn('type', ['photo', 'photo:album', 'video', 'video:album', 'photo:video:album']) ->whereIn('visibility',['public', 'unlisted', 'private']) ->orderByDesc('id') ->limit($limit) ->pluck('id'); foreach($ids as $pid) { $status = StatusService::get($pid, false); if(!$status || !isset($status['account'], $status['url'])) { continue; } if($domainBlocks && count($domainBlocks)) { $domain = strtolower(parse_url($status['url'], PHP_URL_HOST)); if(in_array($domain, $domainBlocks)) { continue; } } self::add($id, $pid); } return $returnIds ? $ids : 1; } return 0; } }