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Copy pathCommentTree.php
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153 lines (126 loc) · 3.57 KB
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<?php
namespace BookStack\Activity\Tools;
use BookStack\Activity\Models\Comment;
use BookStack\Entities\Models\Page;
use BookStack\Permissions\Permission;
class CommentTree
{
/**
* The built nested tree structure array.
* @var CommentTreeNode[]
*/
protected array $tree;
/**
* A linear array of loaded comments.
* @var Comment[]
*/
protected array $comments;
public function __construct(
protected Page $page
) {
$this->comments = $this->loadComments();
$this->tree = $this->createTree($this->comments);
}
public function enabled(): bool
{
return !setting('app-disable-comments');
}
public function empty(): bool
{
return count($this->getActive()) === 0;
}
public function count(): int
{
return count($this->comments);
}
public function getActive(): array
{
return array_values(array_filter($this->tree, fn (CommentTreeNode $node) => !$node->comment->archived));
}
public function activeThreadCount(): int
{
return count($this->getActive());
}
public function getArchived(): array
{
return array_values(array_filter($this->tree, fn (CommentTreeNode $node) => $node->comment->archived));
}
public function archivedThreadCount(): int
{
return count($this->getArchived());
}
public function getCommentNodeForId(int $commentId): ?CommentTreeNode
{
foreach ($this->tree as $node) {
if ($node->comment->id === $commentId) {
return $node;
}
}
return null;
}
public function canUpdateAny(): bool
{
foreach ($this->comments as $comment) {
if (userCan(Permission::CommentUpdate, $comment)) {
return true;
}
}
return false;
}
public function loadVisibleHtml(): void
{
foreach ($this->comments as $comment) {
$comment->setAttribute('html', $comment->safeHtml());
$comment->makeVisible('html');
}
}
/**
* @param Comment[] $comments
* @return CommentTreeNode[]
*/
protected function createTree(array $comments): array
{
$byId = [];
foreach ($comments as $comment) {
$byId[$comment->local_id] = $comment;
}
$childMap = [];
foreach ($comments as $comment) {
$parent = $comment->parent_id;
if (is_null($parent) || !isset($byId[$parent])) {
$parent = 0;
}
if (!isset($childMap[$parent])) {
$childMap[$parent] = [];
}
$childMap[$parent][] = $comment->local_id;
}
$tree = [];
foreach ($childMap[0] ?? [] as $childId) {
$tree[] = $this->createTreeNodeForId($childId, 0, $byId, $childMap);
}
return $tree;
}
protected function createTreeNodeForId(int $id, int $depth, array &$byId, array &$childMap): CommentTreeNode
{
$childIds = $childMap[$id] ?? [];
$children = [];
foreach ($childIds as $childId) {
$children[] = $this->createTreeNodeForId($childId, $depth + 1, $byId, $childMap);
}
return new CommentTreeNode($byId[$id], $depth, $children);
}
/**
* @return Comment[]
*/
protected function loadComments(): array
{
if (!$this->enabled()) {
return [];
}
return $this->page->comments()
->with('createdBy')
->get()
->all();
}
}