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sakura/libraries/Comments.php

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<?php
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/**
* Holds the holds the comment handler class.
*
* @package Sakura
*/
namespace Sakura;
/**
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* Handles and serves comments on pages.
*
* @package Sakura
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* @author Julian van de Groep <me@flash.moe>
*/
class Comments
{
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/**
* The array containing the comments.
*
* @var array
*/
public $comments = [];
/**
* The comment category.
*
* @var string
*/
public $category;
/**
* The amount of comments.
* @var int
*/
public $count = 0;
/**
* Constructor.
*
* @param mixed $category The category that comments should be fetched from.
*/
public function __construct($category)
{
// Set category
$this->category = $category;
// Get the comments and assign them to $comments
$comments = Database::fetch(
'comments',
true,
[
'comment_category' => [$this->category, '='],
'comment_reply_to' => ['0', '='],
],
['comment_id', true]
);
// Feed them into the sorter
$this->comments = $this->sortComments($comments);
}
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/**
* Sort the comments.
*
* @param array $comments Array containing comments.
*
* @return array Array containing the sorted comments.
*/
public function sortComments($comments)
{
// Create storage array
$layer = [];
// Sort comments
foreach ($comments as $comment) {
// Attach the poster
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$comment['comment_poster'] = User::construct($comment['comment_poster']);
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$comment['comment_text'] = Utils::parseEmotes(Utils::cleanString($comment['comment_text']));
// Get likes and dislikes
$votes = $this->getVotes($comment['comment_id']);
$comment['comment_likes'] = 0;
$comment['comment_dislikes'] = 0;
// Store amount in their respective variables
foreach ($votes as $vote) {
if ($vote['vote_state']) {
$comment['comment_likes'] += 1;
} else {
$comment['comment_dislikes'] += 1;
}
}
// Add post to posts array
$layer[$comment['comment_id']] = $comment;
// Up the comment count
$this->count += 1;
// Attempt to get replies from the database
$replies = Database::fetch('comments', true, [
'comment_category' => [$this->category, '='],
'comment_reply_to' => [$comment['comment_id'], '='],
]);
// Check if this was a reply to something
if ($replies) {
// Save the replies
$layer[$comment['comment_id']]['comment_replies'] = $this->sortComments($replies);
}
}
return $layer;
}
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/**
* Get a single comment.
*
* @param int $cid ID of the comment.
*
* @return array The comment.
*/
public function getComment($cid)
{
// Get from database
return Database::fetch('comments', false, [
'comment_id' => [$cid, '='],
]);
}
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/**
* Get the votes for a comment.
*
* @param int $cid ID of the comment.
*
* @return array The votes.
*/
public function getVotes($cid)
{
// Get from database
return Database::fetch('comment_votes', true, [
'vote_comment' => [$cid, '='],
]);
}
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/**
* Creating a new comment.
*
* @param int $uid ID of the user creating the comment.
* @param int $reply ID of the comment that is being replied to.
* @param string $content Contents of the comment.
*
* @return array Response identifier.
*/
public function makeComment($uid, $reply, $content)
{
// Check if the comment is long enough
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if (strlen($content) < Config::get('comment_min_length')) {
return [0, 'TOO_SHORT'];
}
// Check if the comment isn't too long
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if (strlen($content) > Config::get('comment_max_length')) {
return [0, 'TOO_LONG'];
}
// Insert into database
Database::insert('comments', [
'comment_category' => $this->category,
'comment_timestamp' => time(),
'comment_poster' => $uid,
'comment_reply_to' => (int) $reply,
'comment_text' => $content,
]);
// Return success
return [1, 'SUCCESS'];
}
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/**
* Making a vote.
*
* @param int $uid User making this vote.
* @param int $cid ID of the comment that is being voted on.
* @param int $mode Positive or negative vote.
*
* @return bool Always returns true.
*/
public function makeVote($uid, $cid, $mode)
{
// Attempt to get previous vote
$vote = Database::fetch('comment_votes', false, [
'vote_user' => [$uid, '='],
'vote_comment' => [$cid, '='],
]);
// Check if anything was returned
if ($vote) {
// Check if the vote that's being casted is the same
if ($vote['vote_state'] == $mode) {
// Delete the vote
Database::delete('comment_votes', [
'vote_user' => [$uid, '='],
'vote_comment' => [$cid, '='],
]);
} else {
// Otherwise update the vote
Database::update('comment_votes', [
[
'vote_state' => $mode,
],
[
'vote_user' => [$uid, '='],
'vote_comment' => [$cid, '='],
],
]);
}
} else {
// Create a vote
Database::insert('comment_votes', [
'vote_user' => $uid,
'vote_comment' => $cid,
'vote_state' => $mode,
]);
}
return true;
}
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/**
* Remove a comment
*
* @param int $cid ID of the comment to remove.
*
* @return mixed No idea what this returns but it doesn't really matter anyway, the comment is dead.
*/
public function removeComment($cid)
{
// Remove from database
return Database::delete('comments', [
'comment_id' => [$cid, '='],
]);
}
}