src/Module/Conversation/Timeline.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2023, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Module\Conversation;
  23
  24 use Friendica\App;
  25 use Friendica\App\Mode;
  26 use Friendica\BaseModule;
  27 use Friendica\Content\Conversation\Collection\Timelines;
  28 use Friendica\Content\Conversation\Entity\Timeline as TimelineEntity;
  29 use Friendica\Core\Cache\Capability\ICanCache;
  30 use Friendica\Core\Cache\Enum\Duration;
  31 use Friendica\Core\Config\Capability\IManageConfigValues;
  32 use Friendica\Core\L10n;
  33 use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
  34 use Friendica\Core\Renderer;
  35 use Friendica\Core\Session\Capability\IHandleUserSessions;
  36 use Friendica\Model\Contact;
  37 use Friendica\Model\User;
  38 use Friendica\Database\Database;
  39 use Friendica\Database\DBA;
  40 use Friendica\Model\Item;
  41 use Friendica\Model\Post;
  42 use Friendica\Module\Response;
  43 use Friendica\Util\DateTimeFormat;
  44 use Friendica\Util\Profiler;
  45 use Psr\Log\LoggerInterface;
  46
  47 class Timeline extends BaseModule
  48 {
  49         /** @var string */
  50         protected $selectedTab;
  51         /** @var mixed */
  52         protected $minId;
  53         /** @var mixed */
  54         protected $maxId;
  55         /** @var string */
  56         protected $accountTypeString;
  57         /** @var int */
  58         protected $accountType;
  59         /** @var int */
  60         protected $itemUriId;
  61         /** @var int */
  62         protected $itemsPerPage;
  63         /** @var bool */
  64         protected $noSharer;
  65         /** @var bool */
  66         protected $force;
  67         /** @var bool */
  68         protected $update;
  69
  70         /** @var App\Mode $mode */
  71         protected $mode;
  72         /** @var IHandleUserSessions */
  73         protected $session;
  74         /** @var Database */
  75         protected $database;
  76         /** @var IManagePersonalConfigValues */
  77         protected $pConfig;
  78         /** @var IManageConfigValues The config */
  79         protected $config;
  80         /** @var ICanCache */
  81         protected $cache;
  82
  83         public function __construct(Mode $mode, IHandleUserSessions $session, Database $database, IManagePersonalConfigValues $pConfig, IManageConfigValues $config, ICanCache $cache, L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, array $server, array $parameters = [])
  84         {
  85                 parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
  86
  87                 $this->mode     = $mode;
  88                 $this->session  = $session;
  89                 $this->database = $database;
  90                 $this->pConfig  = $pConfig;
  91                 $this->config   = $config;
  92                 $this->cache    = $cache;
  93         }
  94
  95         /**
  96          * Computes module parameters from the request and local configuration
  97          *
  98          * @throws HTTPException\BadRequestException
  99          * @throws HTTPException\ForbiddenException
 100          */
 101         protected function parseRequest(array $request)
 102         {
 103                 $this->logger->debug('Got request', $request);
 104                 $this->selectedTab = $this->parameters['content'] ?? $request['channel'] ?? '';
 105
 106                 $this->accountTypeString = $request['accounttype'] ?? $this->parameters['accounttype'] ?? '';
 107                 $this->accountType       = User::getAccountTypeByString($this->accountTypeString);
 108
 109                 if ($this->mode->isMobile()) {
 110                         $this->itemsPerPage = $this->pConfig->get(
 111                                 $this->session->getLocalUserId(),
 112                                 'system',
 113                                 'itemspage_mobile_network',
 114                                 $this->config->get('system', 'itemspage_network_mobile')
 115                         );
 116                 } else {
 117                         $this->itemsPerPage = $this->pConfig->get(
 118                                 $this->session->getLocalUserId(),
 119                                 'system',
 120                                 'itemspage_network',
 121                                 $this->config->get('system', 'itemspage_network')
 122                         );
 123                 }
 124
 125                 if (!empty($request['item'])) {
 126                         $item            = Post::selectFirst(['parent', 'parent-uri-id'], ['id' => $request['item']]);
 127                         $this->itemUriId = $item['parent-uri-id'] ?? 0;
 128                 } else {
 129                         $this->itemUriId = 0;
 130                 }
 131
 132                 $this->minId = $request['min_id'] ?? null;
 133                 $this->maxId = $request['max_id'] ?? null;
 134
 135                 $this->noSharer = !empty($request['no_sharer']);
 136                 $this->force    = !empty($request['force']) && !empty($request['item']);
 137                 $this->update   = !empty($request['force']) && !empty($request['first_received']) && !empty($request['first_created']) && !empty($request['first_uriid']) && !empty($request['first_commented']);
 138         }
 139
 140         protected function getNoSharerWidget(string $base): string
 141         {
 142                 $path = $this->selectedTab;
 143                 if (!empty($this->accountTypeString)) {
 144                         $path .= '/' . $this->accountTypeString;
 145                 }
 146                 $query_parameters = [];
 147
 148                 if (!empty($this->minId)) {
 149                         $query_parameters['min_id'] = $this->minId;
 150                 }
 151                 if (!empty($this->maxId)) {
 152                         $query_parameters['max_id'] = $this->maxId;
 153                 }
 154
 155                 $path_all       = $path . (!empty($query_parameters) ? '?' . http_build_query($query_parameters) : '');
 156                 $path_no_sharer = $path . '?' . http_build_query(array_merge($query_parameters, ['no_sharer' => true]));
 157                 return Renderer::replaceMacros(Renderer::getMarkupTemplate('widget/community_sharer.tpl'), [
 158                         '$title'           => $this->l10n->t('Own Contacts'),
 159                         '$path_all'        => $path_all,
 160                         '$path_no_sharer'  => $path_no_sharer,
 161                         '$no_sharer'       => $this->noSharer,
 162                         '$all'             => $this->l10n->t('Include'),
 163                         '$no_sharer_label' => $this->l10n->t('Hide'),
 164                         '$base'            => $base,
 165                 ]);
 166         }
 167
 168         protected function getTabArray(Timelines $timelines, string $prefix, string $parameter = ''): array
 169         {
 170                 $tabs = [];
 171
 172                 foreach ($timelines as $tab) {
 173                         if (is_null($tab->path) && !empty($parameter)) {
 174                                 $path = $prefix . '?' . http_build_query([$parameter => $tab->code]);
 175                         } else {
 176                                 $path = $tab->path ?? $prefix . '/' . $tab->code;
 177                         }
 178                         $tabs[$tab->code] = [
 179                                 'label'     => $tab->label,
 180                                 'url'       => $path,
 181                                 'sel'       => $this->selectedTab == $tab->code ? 'active' : '',
 182                                 'title'     => $tab->description,
 183                                 'id'        => $prefix . '-' . $tab->code . '-tab',
 184                                 'accesskey' => $tab->accessKey,
 185                         ];
 186                 }
 187                 return $tabs;
 188         }
 189
 190         /**
 191          * Database query for the channel page
 192          *
 193          * @return array
 194          * @throws \Exception
 195          */
 196         protected function getChannelItems()
 197         {
 198                 $items = $this->getRawChannelItems();
 199
 200                 $contacts = $this->database->selectToArray('user-contact', ['cid'], ['channel-frequency' => Contact\User::FREQUENCY_REDUCED, 'cid' => array_column($items, 'owner-id')]);
 201                 $reduced  = array_column($contacts, 'cid');
 202
 203                 $maxpostperauthor = $this->config->get('channel', 'max_posts_per_author');
 204
 205                 if ($maxpostperauthor != 0) {
 206                         $count          = 1;
 207                         $owner_posts    = [];
 208                         $selected_items = [];
 209
 210                         while (count($selected_items) < $this->itemsPerPage && ++$count < 50 && count($items) > 0) {
 211                                 $maxposts = round((count($items) / $this->itemsPerPage) * $maxpostperauthor);
 212                                 $minId = $items[array_key_first($items)]['created'];
 213                                 $maxId = $items[array_key_last($items)]['created'];
 214
 215                                 foreach ($items as $item) {
 216                                         if (!in_array($item['owner-id'], $reduced)) {
 217                                                 continue;
 218                                         }
 219                                         $owner_posts[$item['owner-id']][$item['uri-id']] = (($item['comments'] * 100) + $item['activities']);
 220                                 }
 221                                 foreach ($owner_posts as $posts) {
 222                                         if (count($posts) <= $maxposts) {
 223                                                 continue;
 224                                         }
 225                                         asort($posts);
 226                                         while (count($posts) > $maxposts) {
 227                                                 $uri_id = array_key_first($posts);
 228                                                 unset($posts[$uri_id]);
 229                                                 unset($items[$uri_id]);
 230                                         }
 231                                 }
 232                                 $selected_items = array_merge($selected_items, $items);
 233
 234                                 // If we're looking at a "previous page", the lookup continues forward in time because the list is
 235                                 // sorted in chronologically decreasing order
 236                                 if (!empty($this->minId)) {
 237                                         $this->minId = $minId;
 238                                 } else {
 239                                         // In any other case, the lookup continues backwards in time
 240                                         $this->maxId = $maxId;
 241                                 }
 242
 243                                 if (count($selected_items) < $this->itemsPerPage) {
 244                                         $items = $this->getRawChannelItems();
 245                                 }
 246                         }
 247                 } else {
 248                         $selected_items = $items;
 249                 }
 250
 251                 $condition = ['unseen' => true, 'uid' => $this->session->getLocalUserId(), 'parent-uri-id' => array_column($selected_items, 'uri-id')];
 252                 $this->setItemsSeenByCondition($condition);
 253
 254                 return $selected_items;
 255         }
 256
 257         /**
 258          * Database query for the channel page
 259          *
 260          * @return array
 261          * @throws \Exception
 262          */
 263         private function getRawChannelItems()
 264         {
 265                 $uid = $this->session->getLocalUserId();
 266
 267                 if ($this->selectedTab == TimelineEntity::WHATSHOT) {
 268                         if (!is_null($this->accountType)) {
 269                                 $condition = ["(`comments` > ? OR `activities` > ?) AND `contact-type` = ?", $this->getMedianComments($uid, 4), $this->getMedianActivities($uid, 4), $this->accountType];
 270                         } else {
 271                                 $condition = ["(`comments` > ? OR `activities` > ?) AND `contact-type` != ?", $this->getMedianComments($uid, 4), $this->getMedianActivities($uid, 4), Contact::TYPE_COMMUNITY];
 272                         }
 273                 } elseif ($this->selectedTab == TimelineEntity::FORYOU) {
 274                         $cid = Contact::getPublicIdByUserId($uid);
 275
 276                         $condition = [
 277                                 "(`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `relation-cid` = ? AND `relation-thread-score` > ?) OR
 278                                 ((`comments` >= ? OR `activities` >= ?) AND `owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `relation-cid` = ?)) OR
 279                                 (`owner-id` IN (SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND (`notify_new_posts` OR `channel-frequency` = ?))))",
 280                                 $cid, $this->getMedianRelationThreadScore($cid, 4), $this->getMedianComments($uid, 4), $this->getMedianActivities($uid, 4), $cid,
 281                                 $uid, Contact\User::FREQUENCY_ALWAYS
 282                         ];
 283                 } elseif ($this->selectedTab == TimelineEntity::FOLLOWERS) {
 284                         $condition = ["`owner-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` = ?)", $uid, Contact::FOLLOWER];
 285                 } elseif ($this->selectedTab == TimelineEntity::SHARERSOFSHARERS) {
 286                         $cid = Contact::getPublicIdByUserId($uid);
 287
 288                         // @todo Suggest posts from contacts that are followed most by our followers
 289                         $condition = [
 290                                 "`owner-id` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `last-interaction` > ?
 291                                 AND `relation-cid` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `relation-cid` = ? AND `relation-thread-score` >= ?)
 292                                 AND NOT `cid` IN (SELECT `cid` FROM `contact-relation` WHERE `follows` AND `relation-cid` = ?))",
 293                                 DateTimeFormat::utc('now - ' . $this->config->get('channel', 'sharer_interaction_days') . ' day'), $cid, $this->getMedianRelationThreadScore($cid, 4), $cid
 294                         ];
 295                 } elseif ($this->selectedTab == TimelineEntity::IMAGE) {
 296                         $condition = ["`media-type` & ?", 1];
 297                 } elseif ($this->selectedTab == TimelineEntity::VIDEO) {
 298                         $condition = ["`media-type` & ?", 2];
 299                 } elseif ($this->selectedTab == TimelineEntity::AUDIO) {
 300                         $condition = ["`media-type` & ?", 4];
 301                 } elseif ($this->selectedTab == TimelineEntity::LANGUAGE) {
 302                         $condition = ["JSON_EXTRACT(JSON_KEYS(language), '$[0]') = ?", $this->l10n->convertCodeForLanguageDetection(User::getLanguageCode($uid))];
 303                 }
 304
 305                 if ($this->selectedTab != TimelineEntity::LANGUAGE) {
 306                         $condition = $this->addLanguageCondition($uid, $condition);
 307                 }
 308
 309                 $condition = DBA::mergeConditions($condition, ["(NOT `restricted` OR EXISTS(SELECT `id` FROM `post-user` WHERE `uid` = ? AND `uri-id` = `post-engagement`.`uri-id`))", $uid]);
 310
 311                 $condition = DBA::mergeConditions($condition, ["NOT EXISTS(SELECT `cid` FROM `user-contact` WHERE `uid` = ? AND `cid` = `post-engagement`.`owner-id` AND (`ignored` OR `blocked` OR `collapsed` OR `is-blocked` OR `channel-frequency` = ?))", $uid, Contact\User::FREQUENCY_NEVER]);
 312
 313                 if (($this->selectedTab != TimelineEntity::WHATSHOT) && !is_null($this->accountType)) {
 314                         $condition = DBA::mergeConditions($condition, ['contact-type' => $this->accountType]);
 315                 }
 316
 317                 $params = ['order' => ['created' => true], 'limit' => $this->itemsPerPage];
 318
 319                 if (!empty($this->itemUriId)) {
 320                         $condition = DBA::mergeConditions($condition, ['uri-id' => $this->itemUriId]);
 321                 } else {
 322                         if ($this->noSharer) {
 323                                 $condition = DBA::mergeConditions($condition, ["NOT `uri-id` IN (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uid` = ? AND `post-user`.`uri-id` = `post-engagement`.`uri-id`)", $this->session->getLocalUserId()]);
 324                         }
 325
 326                         if (isset($this->maxId)) {
 327                                 $condition = DBA::mergeConditions($condition, ["`created` < ?", $this->maxId]);
 328                         }
 329
 330                         if (isset($this->minId)) {
 331                                 $condition = DBA::mergeConditions($condition, ["`created` > ?", $this->minId]);
 332
 333                                 // Previous page case: we want the items closest to min_id but for that we need to reverse the query order
 334                                 if (!isset($this->maxId)) {
 335                                         $params['order']['created'] = false;
 336                                 }
 337                         }
 338                 }
 339
 340                 $items = [];
 341                 $result = $this->database->select('post-engagement', ['uri-id', 'created', 'owner-id', 'comments', 'activities'], $condition, $params);
 342                 while ($item = $this->database->fetch($result)) {
 343                         $items[$item['uri-id']] = $item;
 344                 }
 345                 $this->database->close($result);
 346
 347                 if (empty($items)) {
 348                         return [];
 349                 }
 350
 351                 // Previous page case: once we get the relevant items closest to min_id, we need to restore the expected display order
 352                 if (empty($this->itemUriId) && isset($this->minId) && !isset($this->maxId)) {
 353                         $items = array_reverse($items, true);
 354                 }
 355
 356                 $condition = ['unseen' => true, 'uid' => $uid, 'parent-uri-id' => array_column($items, 'uri-id')];
 357                 $this->setItemsSeenByCondition($condition);
 358
 359                 return $items;
 360         }
 361
 362         private function addLanguageCondition(int $uid, array $condition): array
 363         {
 364                 $conditions = [];
 365                 $languages  = $this->pConfig->get($uid, 'channel', 'languages', [User::getLanguageCode($uid)]);
 366                 $languages  = $this->l10n->convertForLanguageDetection($languages);
 367                 foreach ($languages as $language) {
 368                         $conditions[] = "JSON_EXTRACT(JSON_KEYS(language), '$[0]') = ?";
 369                         $condition[]  = $language;
 370                 }
 371                 if (!empty($conditions)) {
 372                         $condition[0] .= " AND (`language` IS NULL OR " . implode(' OR ', $conditions) . ")";
 373                 }
 374                 return $condition;
 375         }
 376
 377         private function getMedianComments(int $uid, int $divider): int
 378         {
 379                 $languages = $this->pConfig->get($uid, 'channel', 'languages', [User::getLanguageCode($uid)]);
 380                 $cache_key = 'Channel:getMedianComments:' . $divider . ':' . implode(':', $languages);
 381                 $comments  = $this->cache->get($cache_key);
 382                 if (!empty($comments)) {
 383                         return $comments;
 384                 }
 385
 386                 $condition = ["`contact-type` != ? AND `comments` > ? AND NOT `restricted`", Contact::TYPE_COMMUNITY, 0];
 387                 $condition = $this->addLanguageCondition($uid, $condition);
 388
 389                 $limit    = $this->database->count('post-engagement', $condition) / $divider;
 390                 $post     = $this->database->selectToArray('post-engagement', ['comments'], $condition, ['order' => ['comments' => true], 'limit' => [$limit, 1]]);
 391                 $comments = $post[0]['comments'] ?? 0;
 392                 if (empty($comments)) {
 393                         return 0;
 394                 }
 395
 396                 $this->cache->set($cache_key, $comments, Duration::HALF_HOUR);
 397                 $this->logger->debug('Calculated median comments', ['divider' => $divider, 'languages' => $languages, 'median' => $comments]);
 398                 return $comments;
 399         }
 400
 401         private function getMedianActivities(int $uid, int $divider): int
 402         {
 403                 $languages  = $this->pConfig->get($uid, 'channel', 'languages', [User::getLanguageCode($uid)]);
 404                 $cache_key  = 'Channel:getMedianActivities:' . $divider . ':' . implode(':', $languages);
 405                 $activities = $this->cache->get($cache_key);
 406                 if (!empty($activities)) {
 407                         return $activities;
 408                 }
 409
 410                 $condition = ["`contact-type` != ? AND `activities` > ? AND NOT `restricted`", Contact::TYPE_COMMUNITY, 0];
 411                 $condition = $this->addLanguageCondition($uid, $condition);
 412
 413                 $limit      = $this->database->count('post-engagement', $condition) / $divider;
 414                 $post       = $this->database->selectToArray('post-engagement', ['activities'], $condition, ['order' => ['activities' => true], 'limit' => [$limit, 1]]);
 415                 $activities = $post[0]['activities'] ?? 0;
 416                 if (empty($activities)) {
 417                         return 0;
 418                 }
 419
 420                 $this->cache->set($cache_key, $activities, Duration::HALF_HOUR);
 421                 $this->logger->debug('Calculated median activities', ['divider' => $divider, 'languages' => $languages, 'median' => $activities]);
 422                 return $activities;
 423         }
 424
 425         private function getMedianRelationThreadScore(int $cid, int $divider): int
 426         {
 427                 $cache_key = 'Channel:getThreadScore:' . $cid . ':' . $divider;
 428                 $score     = $this->cache->get($cache_key);
 429                 if (!empty($score)) {
 430                         return $score;
 431                 }
 432
 433                 $condition = ["`relation-cid` = ? AND `relation-thread-score` > ?", $cid, 0];
 434
 435                 $limit    = $this->database->count('contact-relation', $condition) / $divider;
 436                 $relation = $this->database->selectToArray('contact-relation', ['relation-thread-score'], $condition, ['order' => ['relation-thread-score' => true], 'limit' => [$limit, 1]]);
 437                 $score    = $relation[0]['relation-thread-score'] ?? 0;
 438                 if (empty($score)) {
 439                         return 0;
 440                 }
 441
 442                 $this->cache->set($cache_key, $score, Duration::HALF_HOUR);
 443                 $this->logger->debug('Calculated median score', ['cid' => $cid, 'divider' => $divider, 'median' => $score]);
 444                 return $score;
 445         }
 446
 447         /**
 448          * Computes the displayed items.
 449          *
 450          * Community pages have a restriction on how many successive posts by the same author can show on any given page,
 451          * so we may have to retrieve more content beyond the first query
 452          *
 453          * @return array
 454          * @throws \Exception
 455          */
 456         protected function getCommunityItems()
 457         {
 458                 $items = $this->selectItems();
 459
 460                 $maxpostperauthor = (int) $this->config->get('system', 'max_author_posts_community_page');
 461                 if ($maxpostperauthor != 0 && $this->selectedTab == 'local') {
 462                         $count          = 1;
 463                         $previousauthor = '';
 464                         $numposts       = 0;
 465                         $selected_items = [];
 466
 467                         while (count($selected_items) < $this->itemsPerPage && ++$count < 50 && count($items) > 0) {
 468                                 foreach ($items as $item) {
 469                                         if ($previousauthor == $item["author-link"]) {
 470                                                 ++$numposts;
 471                                         } else {
 472                                                 $numposts = 0;
 473                                         }
 474                                         $previousauthor = $item["author-link"];
 475
 476                                         if (($numposts < $maxpostperauthor) && (count($selected_items) < $this->itemsPerPage)) {
 477                                                 $selected_items[] = $item;
 478                                         }
 479                                 }
 480
 481                                 // If we're looking at a "previous page", the lookup continues forward in time because the list is
 482                                 // sorted in chronologically decreasing order
 483                                 if (isset($this->minId)) {
 484                                         $this->minId = $items[0]['received'];
 485                                 } else {
 486                                         // In any other case, the lookup continues backwards in time
 487                                         $this->maxId = $items[count($items) - 1]['received'];
 488                                 }
 489
 490                                 $items = $this->selectItems();
 491                         }
 492                 } else {
 493                         $selected_items = $items;
 494                 }
 495
 496                 $condition = ['unseen' => true, 'uid' => $this->session->getLocalUserId(), 'parent-uri-id' => array_column($selected_items, 'uri-id')];
 497                 $this->setItemsSeenByCondition($condition);
 498
 499                 return $selected_items;
 500         }
 501
 502         /**
 503          * Database query for the community page
 504          *
 505          * @return array
 506          * @throws \Exception
 507          * @TODO Move to repository/factory
 508          */
 509         private function selectItems()
 510         {
 511                 if ($this->selectedTab == 'local') {
 512                         $condition = ["`wall` AND `origin` AND `private` = ?", Item::PUBLIC];
 513                 } elseif ($this->selectedTab == 'global') {
 514                         $condition = ["`uid` = ? AND `private` = ?", 0, Item::PUBLIC];
 515                 } else {
 516                         return [];
 517                 }
 518
 519                 if (!is_null($this->accountType)) {
 520                         $condition = DBA::mergeConditions($condition, ['owner-contact-type' => $this->accountType]);
 521                 }
 522
 523                 $params = ['order' => ['received' => true], 'limit' => $this->itemsPerPage];
 524
 525                 if (!empty($this->itemUriId)) {
 526                         $condition = DBA::mergeConditions($condition, ['uri-id' => $this->itemUriId]);
 527                 } else {
 528                         if ($this->session->getLocalUserId() && $this->noSharer) {
 529                                 $condition = DBA::mergeConditions($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`)", $this->session->getLocalUserId()]);
 530                         }
 531
 532                         if (isset($this->maxId)) {
 533                                 $condition = DBA::mergeConditions($condition, ["`received` < ?", $this->maxId]);
 534                         }
 535
 536                         if (isset($this->minId)) {
 537                                 $condition = DBA::mergeConditions($condition, ["`received` > ?", $this->minId]);
 538
 539                                 // Previous page case: we want the items closest to min_id but for that we need to reverse the query order
 540                                 if (!isset($this->maxId)) {
 541                                         $params['order']['received'] = false;
 542                                 }
 543                         }
 544                 }
 545
 546                 $r = Post::selectThreadForUser($this->session->getLocalUserId() ?: 0, ['uri-id', 'received', 'author-link'], $condition, $params);
 547
 548                 $items = Post::toArray($r);
 549                 if (empty($items)) {
 550                         return [];
 551                 }
 552
 553                 // Previous page case: once we get the relevant items closest to min_id, we need to restore the expected display order
 554                 if (empty($this->itemUriId) && isset($this->minId) && !isset($this->maxId)) {
 555                         $items = array_reverse($items);
 556                 }
 557
 558                 return $items;
 559         }
 560
 561         /**
 562          * Sets items as seen
 563          *
 564          * @param array $condition The array with the SQL condition
 565          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 566          */
 567         protected function setItemsSeenByCondition(array $condition)
 568         {
 569                 if (empty($condition)) {
 570                         return;
 571                 }
 572
 573                 $unseen = Post::exists($condition);
 574
 575                 if ($unseen) {
 576                         /// @todo handle huge "unseen" updates in the background to avoid timeout errors
 577                         Item::update(['unseen' => false], $condition);
 578                 }
 579         }
 580 }