gnu-social/plugins/TreeNotes/TreeNotes.php

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<?php
declare(strict_types = 1);
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
namespace Plugin\TreeNotes;
use App\Core\Modules\Plugin;
use App\Entity\Note;
use Symfony\Component\HttpFoundation\Request;
class TreeNotes extends Plugin
{
/**
* Formatting notes without taking a direct reply out of context
* Show whole conversation in conversation related routes
*
* @param array $notes_in
* @param array $notes_out
* @param \Symfony\Component\HttpFoundation\Request $request
*
* @return void
*/
public function onFormatNoteList(array $notes_in, array &$notes_out, Request $request)
{
if (str_starts_with($request->get('_route'), 'conversation')) {
$parents = $this->conversationFormat($notes_in);
$notes_out = $this->conversationFormatTree($parents, $notes_in);
} else {
$notes_out = $this->feedFormatTree($notes_in);
}
}
private function feedFormatTree(array $notes): array
{
$tree = [];
$notes = array_reverse($notes);
foreach ($notes as $note) {
if (!is_null($children = $note->getReplies())) {
$notes = array_filter($notes, fn (Note $n) => !in_array($n, $children));
$tree[] = [
'note' => $note,
'replies' => array_map(
function ($n) {
return ['note' => $n, 'replies' => []];
},
$children
),
];
} else {
$tree[] = ['note' => $note, 'replies' => []];
}
}
return array_reverse($tree);
}
private function conversationFormat(array $notes_in)
{
return array_filter($notes_in, static fn (Note $note) => \is_null($note->getReplyTo()));
}
private function conversationFormatTree(array $parents, array $notes)
{
$subtree = [];
foreach ($parents as $p) {
$subtree[] = $this->conversationFormatSubTree($p, $notes);
}
return $subtree;
}
private function conversationFormatSubTree(Note $parent, array $notes)
{
$children = array_filter($notes, fn (Note $note) => $note->getReplyTo() === $parent->getId());
return ['note' => $parent, 'replies' => $this->conversationFormatTree($children, $notes)];
}
}