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<?php namespace HashOver;
// Copyright (C) 2010-2018 Jacob Barkdull
// This file is part of HashOver.
//
// HashOver 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.
//
// HashOver 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 HashOver. If not, see <http://www.gnu.org/licenses/>.
class Thread
{
public $setup;
public $data;
public $commentList = array ();
public $threadCount = array ();
public $primaryCount = 1;
public $totalCount = 1;
public $primaryDeletedCount = 0;
public $collapsedDeletedCount = 0;
public $totalDeletedCount = 0;
public function __construct (Setup $setup)
{
$this->setup = $setup;
// Instantiate necessary class data format class
$data_class = 'HashOver\\Parse' . strtoupper ($setup->dataFormat);
$this->data = new $data_class ($setup);
}
// Queries a list of comments
public function queryComments ()
{
// Query a list of comments
$comment_list = $this->data->query ();
// Organize comments if comments could be queried
if ($comment_list !== false) {
$this->commentList = $comment_list;
$this->organizeComments ();
}
}
// Counts a comment
public function countComment ($comment)
{
// Count replies
if (strpos ($comment, '-') !== false) {
$file_parts = explode ('-', $comment);
$thread = basename ($comment, '-' . end ($file_parts));
if (isset ($this->threadCount[$thread])) {
$this->threadCount[$thread]++;
} else {
$this->threadCount[$thread] = 1;
}
} else {
// Count top level comments
$this->primaryCount++;
}
// Count replies
if (isset ($this->threadCount[$comment])) {
$this->threadCount[$comment]++;
} else {
$this->threadCount[$comment] = 1;
}
// Count all other comments
$this->totalCount++;
}
// Explode a string, cast substrings to integers
protected function intExplode ($delimiter, $string)
{
$parts = explode ($delimiter, $string);
$ints = array ();
for ($i = 0, $il = count ($parts); $i < $il; $i++) {
$ints[] = (int)($parts[$i]);
}
return $ints;
}
// Counts a deleted comment
public function countDeleted ($comment)
{
// Count deleted replies
if (strpos ($comment, '-') === false) {
$this->primaryDeletedCount++;
}
// Get count from comment key
$comment_parts = $this->intExplode ('-', $comment);
$comment_count = array_sum ($comment_parts);
// Count collapsed deleted comments
if ($comment_count > $this->setup->collapseLimit) {
$this->collapsedDeletedCount++;
}
// Count all other deleted comments
$this->totalDeletedCount++;
}
// Check for missing comments
protected function findMissingComments ($key)
{
// Get integers from key
$key_parts = $this->intExplode ('-', $key);
// Initial comment tree
$comment_tree = '';
// Run through each key
foreach ($key_parts as $key => $reply) {
// Check for comments counting backward from the current
for ($i = 1; $i <= $reply; $i++) {
// Current level to check for
if ($key > 0) {
$current = $comment_tree . '-' . $i;
} else {
$current = $i;
}
// Check for the comment in the list
if (!isset ($this->commentList[$current])) {
// If it doesn't exist, mark comment as missing
$this->commentList[$current] = 'missing';
// Count the missing comment
$this->countComment ($current);
$this->countDeleted ($current);
}
}
// Add current reply number to tree
if ($key > 0) {
$comment_tree .= '-' . $reply;
} else {
$comment_tree = $reply;
}
}
}
// Organize comments
public function organizeComments ()
{
foreach ($this->commentList as $key) {
// Check for missing comments
$this->findMissingComments ($key);
// Count comment
$this->countComment ($key);
}
// Sort comments by their keys alphabetically in ascending order
uksort ($this->commentList, 'strnatcasecmp');
}
// Read comments
public function read ($start = 0, $end = null)
{
$comments = array ();
$limit_count = 0;
$allowed_count = 0;
foreach ($this->commentList as $i => $key) {
// Skip until starting point is reached
if ($limit_count < $start) {
$limit_count++;
continue;
}
// Stop at end point
if ($end !== null and $allowed_count >= $end) {
break;
}
// Skip deleted comments
if ($key === 'missing') {
$comments[$i]['status'] = 'missing';
continue;
}
// Read comment
$comment = $this->data->read ($key);
// See if it read successfully
if ($comment !== false) {
// If so, add the comment to output
$comments[$i] = $comment;
// And count deleted status comments
if (!empty ($comment['status'])
and $comment['status'] === 'deleted')
{
$this->countDeleted ($key);
}
} else {
// If not, set comment status as a read error
$comments[$i]['status'] = 'read-error';
continue;
}
$allowed_count++;
}
return $comments;
}
// Queries a list of comment threads
public function queryThreads ()
{
return $this->data->queryThreads ();
}
}
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