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friendica-github/src/Module/Conversation/Timeline.php
Art4 ec0c3bf96e Refactor Conversation Timeline
2024-11-18 22:00:02 +00:00

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<?php
// Copyright (C) 2010-2024, the Friendica project
// SPDX-FileCopyrightText: 2010-2024 the Friendica project
//
// SPDX-License-Identifier: AGPL-3.0-or-later
namespace Friendica\Module\Conversation;
use Friendica\App\Arguments;
use Friendica\App\BaseURL;
use Friendica\App\Mode;
use Friendica\BaseModule;
use Friendica\Content\Conversation\Collection\Timelines;
use Friendica\Content\Conversation\Entity\Channel as ChannelEntity;
use Friendica\Content\Conversation\Entity\Community;
use Friendica\Content\Conversation\Entity\UserDefinedChannel as UserDefinedChannelEntity;
use Friendica\Content\Conversation\Repository\UserDefinedChannel;
use Friendica\Core\Cache\Capability\ICanCache;
use Friendica\Core\Cache\Enum\Duration;
use Friendica\Core\Config\Capability\IManageConfigValues;
use Friendica\Core\L10n;
use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
use Friendica\Core\Renderer;
use Friendica\Core\Session\Capability\IHandleUserSessions;
use Friendica\Model\Contact;
use Friendica\Model\User;
use Friendica\Database\Database;
use Friendica\Database\DBA;
use Friendica\Model\Item;
use Friendica\Model\Post;
use Friendica\Model\Post\Engagement;
use Friendica\Model\Post\SearchIndex;
use Friendica\Module\Response;
use Friendica\Network\HTTPException\BadRequestException;
use Friendica\Network\HTTPException\ForbiddenException;
use Friendica\Protocol\Activity;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Profiler;
use Psr\Log\LoggerInterface;
class Timeline extends BaseModule
{
/** @var string */
protected $selectedTab;
/** @var mixed */
protected $minId;
/** @var mixed */
protected $maxId;
/** @var string */
protected $accountTypeString;
/** @var int */
protected $accountType;
/** @var int */
protected $itemUriId;
/** @var int */
protected $itemsPerPage;
/** @var bool */
protected $noSharer;
/** @var bool */
protected $force;
/** @var bool */
protected $update;
/** @var bool */
protected $ping;
/** @var bool */
protected $raw;
/** @var string */
protected $order;
/** @var string */
protected $network;
/** @var Mode $mode */
protected $mode;
/** @var IHandleUserSessions */
protected $session;
/** @var Database */
protected $database;
/** @var IManagePersonalConfigValues */
protected $pConfig;
/** @var IManageConfigValues The config */
protected $config;
/** @var ICanCache */
protected $cache;
/** @var UserDefinedChannel */
protected $channelRepository;
public function __construct(UserDefinedChannel $channel, Mode $mode, IHandleUserSessions $session, Database $database, IManagePersonalConfigValues $pConfig, IManageConfigValues $config, ICanCache $cache, L10n $l10n, BaseURL $baseUrl, Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, array $server = [], array $parameters = [])
{
parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
$this->channelRepository = $channel;
$this->mode = $mode;
$this->session = $session;
$this->database = $database;
$this->pConfig = $pConfig;
$this->config = $config;
$this->cache = $cache;
}
/**
* Computes module parameters from the request and local configuration
*
* @throws BadRequestException
* @throws ForbiddenException
*/
protected function parseRequest(array $request)
{
$this->logger->debug('Got request', $request);
$this->selectedTab = $this->parameters['content'] ?? $request['channel'] ?? '';
$this->accountTypeString = $request['accounttype'] ?? $this->parameters['accounttype'] ?? '';
$this->accountType = User::getAccountTypeByString($this->accountTypeString);
if ($this->mode->isMobile()) {
$this->itemsPerPage = $this->pConfig->get(
$this->session->getLocalUserId(),
'system',
'itemspage_mobile_network',
$this->config->get('system', 'itemspage_network_mobile')
);
} else {
$this->itemsPerPage = $this->pConfig->get(
$this->session->getLocalUserId(),
'system',
'itemspage_network',
$this->config->get('system', 'itemspage_network')
);
}
if (!empty($request['item'])) {
$item = Post::selectFirst(['parent', 'parent-uri-id'], ['id' => $request['item']]);
$this->itemUriId = $item['parent-uri-id'] ?? 0;
} else {
$this->itemUriId = 0;
}
$this->order = 'created';
$this->minId = $request['min_id'] ?? null;
$this->maxId = $request['max_id'] ?? null;
$this->noSharer = !empty($request['no_sharer']);
$this->force = !empty($request['force']) && !empty($request['item']);
$this->update = !empty($request['force']) && !empty($request['first_received']) && !empty($request['first_created']) && !empty($request['first_uriid']) && !empty($request['first_commented']);
$this->raw = !empty($request['mode']) && ($request['mode'] == 'raw');
}
protected function setMaxMinByOrder(array $request)
{
switch ($this->order) {
case 'received':
$this->maxId = $request['last_received'] ?? $this->maxId;
$this->minId = $request['first_received'] ?? $this->minId;
break;
case 'created':
$this->maxId = $request['last_created'] ?? $this->maxId;
$this->minId = $request['first_created'] ?? $this->minId;
break;
case 'uri-id':
$this->maxId = $request['last_uriid'] ?? $this->maxId;
$this->minId = $request['first_uriid'] ?? $this->minId;
break;
default:
$this->order = 'commented';
$this->maxId = $request['last_commented'] ?? $this->maxId;
$this->minId = $request['first_commented'] ?? $this->minId;
}
}
protected function getNoSharerWidget(string $base): string
{
$path = $this->selectedTab;
$query_parameters = [];
if (!empty($this->accountTypeString)) {
$query_parameters['accounttype'] = $this->accountTypeString;
}
if (!empty($this->minId)) {
$query_parameters['min_id'] = $this->minId;
}
if (!empty($this->maxId)) {
$query_parameters['max_id'] = $this->maxId;
}
$path_all = $path . (!empty($query_parameters) ? '?' . http_build_query($query_parameters) : '');
$path_no_sharer = $path . '?' . http_build_query(array_merge($query_parameters, ['no_sharer' => true]));
return Renderer::replaceMacros(Renderer::getMarkupTemplate('widget/community_sharer.tpl'), [
'$title' => $this->l10n->t('Own Contacts'),
'$path_all' => $path_all,
'$path_no_sharer' => $path_no_sharer,
'$no_sharer' => $this->noSharer,
'$all' => $this->l10n->t('Include'),
'$no_sharer_label' => $this->l10n->t('Hide'),
'$base' => $base,
]);
}
protected function getTabArray(Timelines $timelines, string $prefix, string $parameter = ''): array
{
$tabs = [];
foreach ($timelines as $tab) {
if (is_null($tab->path) && !empty($parameter)) {
$path = $prefix . '?' . http_build_query([$parameter => $tab->code]);
} else {
$path = $tab->path ?? $prefix . '/' . $tab->code;
}
$tabs[$tab->code] = [
'code' => $tab->code,
'label' => $tab->label,
'url' => $path,
'sel' => $this->selectedTab == $tab->code ? 'active' : '',
'title' => $tab->description,
'id' => $prefix . '-' . $tab->code . '-tab',
'accesskey' => $tab->accessKey,
];
}
return $tabs;
}
public function getChannelItemsForAPI(string $channel, int $uid, int $limit, int $min = null, int $max = null): array
{
$this->itemsPerPage = $limit;
$this->itemUriId = 0;
$this->maxId = $max;
$this->minId = $min;
$this->noSharer = false;
$this->order = 'uri-id';
$this->ping = false;
$this->selectedTab = $channel;
return $this->getChannelItems([], $uid);
}
/**
* Database query for the channel page
*
* @return array
* @throws \Exception
*/
protected function getChannelItems(array $request, int $uid): array
{
$items = $this->getRawChannelItems($request, $uid);
$total = min(count($items), $this->itemsPerPage);
$contacts = $this->database->selectToArray('user-contact', ['cid'], ['channel-frequency' => Contact\User::FREQUENCY_REDUCED, 'cid' => array_column($items, 'owner-id')]);
$reduced = array_column($contacts, 'cid');
$maxpostperauthor = $this->config->get('channel', 'max_posts_per_author');
if ($maxpostperauthor != 0) {
$count = 1;
$owner_posts = [];
$selected_items = [];
while (count($selected_items) < $total && ++$count < 50 && count($items) > 0) {
$maxposts = round((count($items) / $total) * $maxpostperauthor);
$minId = $items[array_key_first($items)][$this->order];
$maxId = $items[array_key_last($items)][$this->order];
foreach ($items as $item) {
if (!in_array($item['owner-id'], $reduced)) {
continue;
}
$owner_posts[$item['owner-id']][$item['uri-id']] = (($item['comments'] * 100) + $item['activities']);
}
foreach ($owner_posts as $posts) {
if (count($posts) <= $maxposts) {
continue;
}
asort($posts);
while (count($posts) > $maxposts) {
$uri_id = array_key_first($posts);
unset($posts[$uri_id]);
unset($items[$uri_id]);
}
}
$selected_items = array_merge($selected_items, $items);
// If we're looking at a "previous page", the lookup continues forward in time because the list is
// sorted in chronologically decreasing order
if (!empty($this->minId)) {
$this->minId = $minId;
} else {
// In any other case, the lookup continues backwards in time
$this->maxId = $maxId;
}
if (count($selected_items) < $total) {
$items = $this->getRawChannelItems($request, $uid);
}
}
} else {
$selected_items = $items;
}
$condition = ['unseen' => true, 'uid' => $uid, 'parent-uri-id' => array_column($selected_items, 'uri-id')];
$this->setItemsSeenByCondition($condition);
return $selected_items;
}
/**
* Database query for the channel page
*
* @return array
* @throws \Exception
*/
private function getRawChannelItems(array $request, int $uid): array
{
$table = 'post-engagement';
$condition = [];
if ($this->selectedTab == ChannelEntity::WHATSHOT) {
if (!is_null($this->accountType)) {
$condition = ["(`comments` > ? OR `activities` > ?) AND `contact-type` = ?", $this->getMedianComments($uid, 4), $this->getMedianActivities($uid, 4), $this->accountType];
} else {
$condition = ["(`comments` > ? OR `activities` > ?) AND `contact-type` != ?", $this->getMedianComments($uid, 4), $this->getMedianActivities($uid, 4), Contact::TYPE_COMMUNITY];
}
} elseif ($this->selectedTab == ChannelEntity::FORYOU) {
$cid = Contact::getPublicIdByUserId($uid);
$condition = [
"(`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `relation-cid` = ? AND `relation-thread-score` > ?) OR
((`comments` >= ? OR `activities` >= ?) AND `owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `relation-cid` = ?)) OR
(`owner-id` IN (SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND (`notify_new_posts` OR `channel-frequency` = ?))))",
$cid, $this->getMedianRelationThreadScore($cid, 4), $this->getMedianComments($uid, 4), $this->getMedianActivities($uid, 4), $cid,
$uid, Contact\User::FREQUENCY_ALWAYS
];
} elseif ($this->selectedTab == ChannelEntity::DISCOVER) {
$cid = Contact::getPublicIdByUserId($uid);
$condition = [
"`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `relation-cid` = ? AND NOT `follows`) AND
(`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `relation-cid` = ? AND NOT `follows` AND `relation-thread-score` > ?) OR
`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `cid` = ? AND `relation-thread-score` > ?) OR
((`comments` >= ? OR `activities` >= ?) AND
(`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `cid` = ? AND `relation-thread-score` > ?)) OR
(`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `relation-cid` = ? AND `relation-thread-score` > ?))))",
$cid, $cid, $this->getMedianRelationThreadScore($cid, 4), $cid, $this->getMedianRelationThreadScore($cid, 4),
$this->getMedianComments($uid, 4), $this->getMedianActivities($uid, 4), $cid, 0, $cid, 0
];
} elseif ($this->selectedTab == ChannelEntity::FOLLOWERS) {
$condition = ["`owner-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` = ?)", $uid, Contact::FOLLOWER];
} elseif ($this->selectedTab == ChannelEntity::SHARERSOFSHARERS) {
$cid = Contact::getPublicIdByUserId($uid);
// @todo Suggest posts from contacts that are followed most by our followers
$condition = [
"`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `last-interaction` > ?
AND `relation-cid` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `relation-cid` = ? AND `relation-thread-score` >= ?)
AND NOT `cid` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `relation-cid` = ?))",
DateTimeFormat::utc('now - ' . $this->config->get('channel', 'sharer_interaction_days') . ' day'), $cid, $this->getMedianRelationThreadScore($cid, 4), $cid
];
} elseif ($this->selectedTab == ChannelEntity::QUIETSHARERS) {
$cid = Contact::getPublicIdByUserId($uid);
$condition = [
"`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `relation-cid` = ? AND `post-score` <= ?)",
$cid, $this->getMedianPostScore($cid, 2)
];
} elseif ($this->selectedTab == ChannelEntity::IMAGE) {
$condition = ["`media-type` & ?", 1];
} elseif ($this->selectedTab == ChannelEntity::VIDEO) {
$condition = ["`media-type` & ?", 2];
} elseif ($this->selectedTab == ChannelEntity::AUDIO) {
$condition = ["`media-type` & ?", 4];
} elseif ($this->selectedTab == ChannelEntity::LANGUAGE) {
$condition = ["`language` = ?", User::getLanguageCode($uid)];
} elseif (is_numeric($this->selectedTab) && !empty($channel = $this->channelRepository->selectById($this->selectedTab, $uid))) {
$condition = $this->getUserChannelConditions($channel, $uid);
if (in_array($channel->circle, [-3, -4, -5])) {
$table = SearchIndex::getSearchView();
$condition = DBA::mergeConditions($condition, ['uid' => $uid]);
$orders = ['-3' => 'created', '-4' => 'received', '-5' => 'commented'];
$this->order = $orders[$channel->circle];
}
}
$this->setMaxMinByOrder($request);
if (!empty($this->network)) {
$condition = DBA::mergeConditions($condition, ['network' => $this->network]);
}
if (($this->selectedTab != ChannelEntity::LANGUAGE) && !is_numeric($this->selectedTab)) {
$condition = $this->addLanguageCondition($uid, $condition);
}
$condition = DBA::mergeConditions($condition, ["(NOT `restricted` OR EXISTS(SELECT `id` FROM `post-user` WHERE `uid` = ? AND `uri-id` = `$table`.`uri-id`))", $uid]);
$condition = DBA::mergeConditions($condition, ["NOT EXISTS(SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND `cid` = `$table`.`owner-id` AND (`ignored` OR `blocked` OR `collapsed` OR `is-blocked` OR `channel-frequency` = ?))", $uid, Contact\User::FREQUENCY_NEVER]);
if (($this->selectedTab != ChannelEntity::WHATSHOT) && !is_null($this->accountType)) {
$condition = DBA::mergeConditions($condition, ['contact-type' => $this->accountType]);
}
$params = ['order' => [$this->order => true], 'limit' => $this->itemsPerPage];
if (!empty($this->itemUriId)) {
$condition = DBA::mergeConditions($condition, ['uri-id' => $this->itemUriId]);
} else {
if ($this->noSharer) {
$condition = DBA::mergeConditions($condition, ["NOT `uri-id` IN (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uid` = ? AND `post-user`.`uri-id` = `$table`.`uri-id`)", $this->session->getLocalUserId()]);
}
if (isset($this->maxId)) {
$condition = DBA::mergeConditions($condition, ["`$this->order` < ?", $this->maxId]);
}
if (isset($this->minId)) {
$condition = DBA::mergeConditions($condition, ["`$this->order` > ?", $this->minId]);
// Previous page case: we want the items closest to min_id but for that we need to reverse the query order
if (!isset($this->maxId)) {
$params['order'][$this->order] = false;
}
}
}
$items = [];
$fields = ['uri-id', 'owner-id', 'comments', 'activities'];
$fields[] = $this->order;
$result = $this->database->select($table, $fields, $condition, $params);
if ($this->database->errorNo()) {
throw new \Exception($this->database->errorMessage(), $this->database->errorNo());
}
while ($item = $this->database->fetch($result)) {
$items[$item['uri-id']] = $item;
}
$this->database->close($result);
if (empty($items)) {
return [];
}
// Previous page case: once we get the relevant items closest to min_id, we need to restore the expected display order
if (empty($this->itemUriId) && isset($this->minId) && !isset($this->maxId)) {
$items = array_reverse($items, true);
}
$condition = ['unseen' => true, 'uid' => $uid, 'parent-uri-id' => array_column($items, 'uri-id')];
$this->setItemsSeenByCondition($condition);
return $items;
}
private function getUserChannelConditions(UserDefinedChannelEntity $channel, int $uid): array
{
$condition = [];
if (!empty($channel->circle)) {
if ($channel->circle == -1) {
$condition = ["`owner-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` IN (?, ?))", $uid, Contact::SHARING, Contact::FRIEND];
} elseif ($channel->circle == -2) {
$condition = ["`owner-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` = ?)", $uid, Contact::FOLLOWER];
} elseif ($channel->circle > 0) {
$condition = DBA::mergeConditions($condition, ["`owner-id` IN (SELECT `pid` FROM `group_member` INNER JOIN `account-user-view` ON `group_member`.`contact-id` = `account-user-view`.`id` WHERE `gid` = ? AND `account-user-view`.`uid` = ?)", $channel->circle, $uid]);
}
}
if (!empty($channel->fullTextSearch)) {
if (!empty($channel->includeTags)) {
$additional = $this->addIncludeTags($channel->includeTags);
} else {
$additional = '';
}
if (!empty($channel->excludeTags)) {
foreach (explode(',', mb_strtolower($channel->excludeTags)) as $tag) {
$additional .= ' -tag:' . $tag;
}
}
if (!empty($channel->mediaType)) {
$additional .= $this->addMediaTerms($channel->mediaType);
}
$additional .= $this->addLanguageSearchTerms($uid, $channel->languages);
if ($additional) {
$searchterms = '+(' . trim($channel->fullTextSearch) . ')' . $additional;
} else {
$searchterms = $channel->fullTextSearch;
}
$condition = DBA::mergeConditions($condition, ["MATCH (`searchtext`) AGAINST (? IN BOOLEAN MODE)", Engagement::escapeKeywords($searchterms)]);
} else {
if (!empty($channel->includeTags)) {
$search = explode(',', mb_strtolower($channel->includeTags));
$placeholders = substr(str_repeat("?, ", count($search)), 0, -2);
$condition = DBA::mergeConditions($condition, array_merge(["`uri-id` IN (SELECT `uri-id` FROM `post-tag` INNER JOIN `tag` ON `tag`.`id` = `post-tag`.`tid` WHERE `post-tag`.`type` = 1 AND `name` IN (" . $placeholders . "))"], $search));
}
if (!empty($channel->excludeTags)) {
$search = explode(',', mb_strtolower($channel->excludeTags));
$placeholders = substr(str_repeat("?, ", count($search)), 0, -2);
$condition = DBA::mergeConditions($condition, array_merge(["NOT `uri-id` IN (SELECT `uri-id` FROM `post-tag` INNER JOIN `tag` ON `tag`.`id` = `post-tag`.`tid` WHERE `post-tag`.`type` = 1 AND `name` IN (" . $placeholders . "))"], $search));
}
if (!empty($channel->mediaType)) {
$condition = DBA::mergeConditions($condition, ["`media-type` & ?", $channel->mediaType]);
}
// For "addLanguageCondition" to work, the condition must not be empty
$condition = $this->addLanguageCondition($uid, $condition ?: ["true"], $channel->languages);
}
if (!is_null($channel->minSize)) {
$condition = DBA::mergeConditions($condition, ["`size` >= ?", $channel->minSize]);
}
if (!is_null($channel->maxSize)) {
$condition = DBA::mergeConditions($condition, ["`size` <= ?", $channel->maxSize]);
}
return $condition;
}
private function addIncludeTags(string $includeTags): string
{
$tagterms = '';
foreach (explode(',', mb_strtolower($includeTags)) as $tag) {
$tagterms .= ' tag:' . $tag;
}
if ($tagterms) {
return ' +(' . trim($tagterms) . ')';
} else {
return '';
}
}
private function addMediaTerms(int $mediaType): string
{
$mediaterms = '';
if ($mediaType & 1) {
$mediaterms .= ' media:image';
}
if ($mediaType & 2) {
$mediaterms .= ' media:video';
}
if ($mediaType & 4) {
$mediaterms .= ' media:audio';
}
if ($mediaterms) {
return ' +(' . trim($mediaterms) . ')';
} else {
return '';
}
}
private function addLanguageSearchTerms(int $uid, $languages = null): string
{
$langterms = '';
foreach ($languages ?: User::getWantedLanguages($uid) as $language) {
$langterms .= ' language:' . $language;
}
if ($langterms) {
return ' +(' . trim($langterms) . ')';
} else {
return '';
}
}
private function addLanguageCondition(int $uid, array $condition, $languages = null): array
{
$conditions = [];
foreach ($languages ?: User::getWantedLanguages($uid) as $language) {
$conditions[] = "`language` = ?";
$condition[] = $language;
}
if (!empty($conditions)) {
$condition[0] .= " AND (" . implode(' OR ', $conditions) . ")";
}
return $condition;
}
private function getMedianComments(int $uid, int $divider): int
{
$languages = User::getWantedLanguages($uid);
$cache_key = 'Channel:getMedianComments:' . $divider . ':' . implode(':', $languages);
$comments = $this->cache->get($cache_key);
if (!empty($comments)) {
return $comments;
}
$condition = ["`contact-type` != ? AND `comments` > ? AND NOT `restricted`", Contact::TYPE_COMMUNITY, 0];
$condition = $this->addLanguageCondition($uid, $condition);
$limit = $this->database->count('post-engagement', $condition) / $divider;
$post = $this->database->selectToArray('post-engagement', ['comments'], $condition, ['order' => ['comments' => true], 'limit' => [$limit, 1]]);
$comments = $post[0]['comments'] ?? 0;
if (empty($comments)) {
return 0;
}
$this->cache->set($cache_key, $comments, Duration::HALF_HOUR);
$this->logger->debug('Calculated median comments', ['divider' => $divider, 'languages' => $languages, 'median' => $comments]);
return $comments;
}
private function getMedianActivities(int $uid, int $divider): int
{
$languages = User::getWantedLanguages($uid);
$cache_key = 'Channel:getMedianActivities:' . $divider . ':' . implode(':', $languages);
$activities = $this->cache->get($cache_key);
if (!empty($activities)) {
return $activities;
}
$condition = ["`contact-type` != ? AND `activities` > ? AND NOT `restricted`", Contact::TYPE_COMMUNITY, 0];
$condition = $this->addLanguageCondition($uid, $condition);
$limit = $this->database->count('post-engagement', $condition) / $divider;
$post = $this->database->selectToArray('post-engagement', ['activities'], $condition, ['order' => ['activities' => true], 'limit' => [$limit, 1]]);
$activities = $post[0]['activities'] ?? 0;
if (empty($activities)) {
return 0;
}
$this->cache->set($cache_key, $activities, Duration::HALF_HOUR);
$this->logger->debug('Calculated median activities', ['divider' => $divider, 'languages' => $languages, 'median' => $activities]);
return $activities;
}
private function getMedianRelationThreadScore(int $cid, int $divider): int
{
$cache_key = 'Channel:getThreadScore:' . $cid . ':' . $divider;
$score = $this->cache->get($cache_key);
if (!empty($score)) {
return $score;
}
$condition = ["`relation-cid` = ? AND `relation-thread-score` > ?", $cid, 0];
$limit = $this->database->count('contact-relation', $condition) / $divider;
$relation = $this->database->selectToArray('contact-relation', ['relation-thread-score'], $condition, ['order' => ['relation-thread-score' => true], 'limit' => [$limit, 1]]);
$score = $relation[0]['relation-thread-score'] ?? 0;
if (empty($score)) {
return 0;
}
$this->cache->set($cache_key, $score, Duration::HALF_HOUR);
$this->logger->debug('Calculated median score', ['cid' => $cid, 'divider' => $divider, 'median' => $score]);
return $score;
}
private function getMedianPostScore(int $cid, int $divider): int
{
$cache_key = 'Channel:getPostScore:' . $cid . ':' . $divider;
$score = $this->cache->get($cache_key);
if (!empty($score)) {
return $score;
}
$condition = ["`relation-cid` = ? AND `post-score` > ?", $cid, 0];
$limit = $this->database->count('contact-relation', $condition) / $divider;
$relation = $this->database->selectToArray('contact-relation', ['post-score'], $condition, ['order' => ['post-score' => true], 'limit' => [$limit, 1]]);
$score = $relation[0]['post-score'] ?? 0;
if (empty($score)) {
return 0;
}
$this->cache->set($cache_key, $score, Duration::HALF_HOUR);
$this->logger->debug('Calculated median score', ['cid' => $cid, 'divider' => $divider, 'median' => $score]);
return $score;
}
/**
* Computes the displayed items.
*
* Community pages have a restriction on how many successive posts by the same author can show on any given page,
* so we may have to retrieve more content beyond the first query
*
* @return array
* @throws \Exception
*/
protected function getCommunityItems()
{
$items = $this->selectItems();
$key = '';
if ($this->selectedTab == Community::LOCAL) {
$maxpostperauthor = (int)$this->config->get('system', 'max_author_posts_community_page');
$key = 'author-id';
} elseif ($this->selectedTab == Community::GLOBAL) {
$maxpostperauthor = (int)$this->config->get('system', 'max_server_posts_community_page');
$key = 'author-gsid';
} else {
$this->setItemsSeenByCondition([
'unseen' => true,
'uid' => $this->session->getLocalUserId(),
'parent-uri-id' => array_column($items, 'uri-id')
]);
return $items;
}
$count = 1;
$author_posts = [];
$selected_items = [];
while (count($selected_items) < $this->itemsPerPage && ++$count < 50 && count($items) > 0) {
$maxposts = round((count($items) / $this->itemsPerPage) * $maxpostperauthor);
$minId = $items[array_key_first($items)]['received'];
$maxId = $items[array_key_last($items)]['received'];
foreach ($items as $item) {
$author_posts[$item[$key]][$item['uri-id']] = $item['received'];
}
foreach ($author_posts as $posts) {
if (count($posts) <= $maxposts) {
continue;
}
asort($posts);
while (count($posts) > $maxposts) {
$uri_id = array_key_first($posts);
unset($posts[$uri_id]);
unset($items[$uri_id]);
}
}
$selected_items = array_merge($selected_items, $items);
// If we're looking at a "previous page", the lookup continues forward in time because the list is
// sorted in chronologically decreasing order
if (!empty($this->minId)) {
$this->minId = $minId;
} else {
// In any other case, the lookup continues backwards in time
$this->maxId = $maxId;
}
if (count($selected_items) < $this->itemsPerPage) {
$items = $this->selectItems();
}
}
$condition = ['unseen' => true, 'uid' => $this->session->getLocalUserId(), 'parent-uri-id' => array_column($selected_items, 'uri-id')];
$this->setItemsSeenByCondition($condition);
return $selected_items;
}
/**
* Database query for the community page
*
* @return array
* @throws \Exception
* @TODO Move to repository/factory
*/
private function selectItems()
{
$this->order = 'received';
if ($this->selectedTab == Community::LOCAL) {
$condition = ["`wall` AND `origin` AND `private` = ?", Item::PUBLIC];
} elseif ($this->selectedTab == 'global') {
$condition = ["`uid` = ? AND `private` = ?", 0, Item::PUBLIC];
} else {
return [];
}
if (!is_null($this->accountType)) {
$condition = DBA::mergeConditions($condition, ['owner-contact-type' => $this->accountType]);
}
$params = ['order' => ['received' => true], 'limit' => $this->itemsPerPage];
if (!empty($this->itemUriId)) {
$condition = DBA::mergeConditions($condition, ['uri-id' => $this->itemUriId]);
} else {
if ($this->session->getLocalUserId() && $this->noSharer) {
$condition = DBA::mergeConditions($condition, ["NOT `uri-id` IN (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uid` = ? AND `post-user`.`uri-id` = `post-thread-user-view`.`uri-id`)", $this->session->getLocalUserId()]);
}
if (isset($this->maxId)) {
$condition = DBA::mergeConditions($condition, ["`received` < ?", $this->maxId]);
}
if (isset($this->minId)) {
$condition = DBA::mergeConditions($condition, ["`received` > ?", $this->minId]);
// Previous page case: we want the items closest to min_id but for that we need to reverse the query order
if (!isset($this->maxId)) {
$params['order']['received'] = false;
}
}
}
$items = [];
if ($this->selectedTab == Community::LOCAL) {
$result = Post::selectOriginThread(['uri-id', 'received', 'author-id', 'author-gsid'], $condition, $params);
} else {
$result = Post::selectThreadForUser($this->session->getLocalUserId() ?: 0, ['uri-id', 'received', 'author-id', 'author-gsid'], $condition, $params);
}
while ($item = $this->database->fetch($result)) {
$item['comments'] = 0;
$items[$item['uri-id']] = $item;
}
$this->database->close($result);
if (empty($items)) {
return [];
}
$uriids = array_keys($items);
foreach (Post\Counts::get(['parent-uri-id' => $uriids, 'verb' => Activity::POST]) as $count) {
$items[$count['parent-uri-id']]['comments'] += $count['count'];
}
// Previous page case: once we get the relevant items closest to min_id, we need to restore the expected display order
if (empty($this->itemUriId) && isset($this->minId) && !isset($this->maxId)) {
$items = array_reverse($items);
}
return $items;
}
/**
* Sets items as seen
*
* @param array $condition The array with the SQL condition
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
protected function setItemsSeenByCondition(array $condition)
{
if (empty($condition) || $this->ping) {
return;
}
$unseen = Post::exists($condition);
if ($unseen) {
/// @todo handle huge "unseen" updates in the background to avoid timeout errors
Item::update(['unseen' => false], $condition);
}
}
}
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