feat: Enhance comment system with threading and reactions
- Add threaded comment support (up to 5 levels deep) - Implement comment reactions (like, heart, laugh, thinking, sad, angry) - Add @mention system with user notifications - Enable comment pinning for video owners - Support comment editing with edit indicator - Build moderation system (approve/reject/delete/flag) - Create cached reaction counts for performance - Document enhanced comment system Features: - Nested comment threads with depth limiting - Six reaction types per comment - Automatic mention detection and notifications - Pin important comments - Edit history tracking - Comprehensive moderation tools - Optimized with aggregated counts - Production-ready with proper indexing
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Krystie
@@ -0,0 +1,344 @@
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<?php
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/**
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* Enhanced Comments Manager
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* Threading, reactions, mentions, moderation
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*/
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class VCommentsEnhanced {
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private $db;
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private $logger;
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public function __construct() {
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global $class_database;
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$this->db = $class_database;
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$this->logger = new VLogger('comments');
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}
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/**
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* Post a comment with threading support
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*/
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public function postComment($video_id, $usr_id, $comment_text, $parent_comment_id = null) {
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$depth = 0;
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// Calculate depth if this is a reply
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if ($parent_comment_id) {
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$sql = "SELECT depth FROM db_comments WHERE comment_id = ?";
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$result = $this->db->execute($sql, [$parent_comment_id]);
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if ($result && $this->db->rowCount($result) > 0) {
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$row = $this->db->fetch($result);
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$depth = $row['depth'] + 1;
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// Limit nesting depth to prevent UI issues
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if ($depth > 5) {
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$depth = 5;
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}
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}
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}
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// Insert comment
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$sql = "INSERT INTO db_comments
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(video_id, usr_id, parent_comment_id, depth, comment, approved)
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VALUES (?, ?, ?, ?, ?, 1)";
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$this->db->execute($sql, [$video_id, $usr_id, $parent_comment_id, $depth, $comment_text]);
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$comment_id = $this->db->lastInsertId();
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// Extract and save mentions
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$this->extractMentions($comment_id, $comment_text);
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$this->logger->info("Comment posted: $comment_id by user $usr_id");
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return $comment_id;
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}
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/**
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* Extract @mentions from comment text
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*/
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private function extractMentions($comment_id, $text) {
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preg_match_all('/@(\w+)/', $text, $matches);
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if (empty($matches[1])) {
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return;
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}
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foreach (array_unique($matches[1]) as $username) {
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// Find user by username
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$sql = "SELECT usr_id FROM db_users WHERE usr_user = ?";
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$result = $this->db->execute($sql, [$username]);
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if ($result && $this->db->rowCount($result) > 0) {
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$row = $this->db->fetch($result);
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// Save mention
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$sql = "INSERT IGNORE INTO db_comment_mentions (comment_id, mentioned_user_id)
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VALUES (?, ?)";
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$this->db->execute($sql, [$comment_id, $row['usr_id']]);
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// Trigger notification (integrate with notification system)
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$this->notifyMention($comment_id, $row['usr_id']);
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}
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}
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}
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/**
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* Notify user they were mentioned
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*/
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private function notifyMention($comment_id, $mentioned_user_id) {
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// Get comment details
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$sql = "SELECT c.video_id, c.usr_id, u.usr_user, v.file_title
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FROM db_comments c
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JOIN db_users u ON c.usr_id = u.usr_id
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JOIN db_videofiles v ON c.video_id = v.video_id
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WHERE c.comment_id = ?";
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$result = $this->db->execute($sql, [$comment_id]);
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if ($result && $this->db->rowCount($result) > 0) {
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$row = $this->db->fetch($result);
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// Create notification (if NotificationManager exists)
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if (class_exists('NotificationManager')) {
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$notif = new NotificationManager();
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$notif->create(
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$mentioned_user_id,
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'mention',
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"{$row['usr_user']} mentioned you in a comment",
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"on \"{$row['file_title']}\"",
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"/watch?v={$row['video_id']}#comment-{$comment_id}"
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);
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}
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}
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}
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/**
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* Add reaction to comment
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*/
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public function addReaction($comment_id, $usr_id, $reaction_type = 'like') {
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$sql = "INSERT INTO db_comment_reactions (comment_id, usr_id, reaction_type)
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VALUES (?, ?, ?)
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ON DUPLICATE KEY UPDATE reaction_type = VALUES(reaction_type)";
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$this->db->execute($sql, [$comment_id, $usr_id, $reaction_type]);
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// Update counts
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$this->updateReactionCounts($comment_id);
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return true;
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}
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/**
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* Remove reaction from comment
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*/
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public function removeReaction($comment_id, $usr_id, $reaction_type) {
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$sql = "DELETE FROM db_comment_reactions
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WHERE comment_id = ? AND usr_id = ? AND reaction_type = ?";
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$this->db->execute($sql, [$comment_id, $usr_id, $reaction_type]);
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// Update counts
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$this->updateReactionCounts($comment_id);
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return true;
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}
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/**
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* Update reaction counts cache
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*/
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private function updateReactionCounts($comment_id) {
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$sql = "INSERT INTO db_comment_reaction_counts (comment_id, like_count, heart_count, laugh_count, thinking_count, sad_count, angry_count, total_count)
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SELECT
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comment_id,
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SUM(CASE WHEN reaction_type = 'like' THEN 1 ELSE 0 END),
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SUM(CASE WHEN reaction_type = 'heart' THEN 1 ELSE 0 END),
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SUM(CASE WHEN reaction_type = 'laugh' THEN 1 ELSE 0 END),
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SUM(CASE WHEN reaction_type = 'thinking' THEN 1 ELSE 0 END),
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SUM(CASE WHEN reaction_type = 'sad' THEN 1 ELSE 0 END),
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SUM(CASE WHEN reaction_type = 'angry' THEN 1 ELSE 0 END),
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COUNT(*)
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FROM db_comment_reactions
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WHERE comment_id = ?
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GROUP BY comment_id
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ON DUPLICATE KEY UPDATE
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like_count = VALUES(like_count),
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heart_count = VALUES(heart_count),
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laugh_count = VALUES(laugh_count),
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thinking_count = VALUES(thinking_count),
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sad_count = VALUES(sad_count),
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angry_count = VALUES(angry_count),
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total_count = VALUES(total_count)";
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$this->db->execute($sql, [$comment_id]);
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}
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/**
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* Get threaded comments for a video
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*/
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public function getThreadedComments($video_id, $limit = 50, $offset = 0, $sort = 'top') {
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$order_by = match($sort) {
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'top' => 'COALESCE(rc.total_count, 0) DESC, c.timestamp DESC',
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'newest' => 'c.timestamp DESC',
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'oldest' => 'c.timestamp ASC',
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default => 'c.timestamp DESC'
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};
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// Get top-level comments first
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$sql = "SELECT
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c.*,
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u.usr_user,
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u.avatar_url,
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u.usr_verified,
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COALESCE(rc.like_count, 0) as like_count,
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COALESCE(rc.heart_count, 0) as heart_count,
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COALESCE(rc.laugh_count, 0) as laugh_count,
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COALESCE(rc.total_count, 0) as total_reactions,
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(SELECT COUNT(*) FROM db_comments WHERE parent_comment_id = c.comment_id) as reply_count
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FROM db_comments c
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JOIN db_users u ON c.usr_id = u.usr_id
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LEFT JOIN db_comment_reaction_counts rc ON c.comment_id = rc.comment_id
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WHERE c.video_id = ?
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AND c.parent_comment_id IS NULL
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AND c.approved = 1
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ORDER BY c.is_pinned DESC, {$order_by}
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LIMIT ? OFFSET ?";
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$result = $this->db->execute($sql, [$video_id, $limit, $offset]);
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if (!$result) {
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return [];
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}
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$comments = [];
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while ($row = $this->db->fetch($result)) {
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$row['replies'] = $this->getReplies($row['comment_id'], 3); // Get first 3 replies
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$comments[] = $row;
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}
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return $comments;
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}
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/**
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* Get replies to a comment
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*/
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public function getReplies($parent_comment_id, $limit = 10) {
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$sql = "SELECT
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c.*,
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u.usr_user,
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u.avatar_url,
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u.usr_verified,
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COALESCE(rc.like_count, 0) as like_count,
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COALESCE(rc.total_count, 0) as total_reactions
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FROM db_comments c
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JOIN db_users u ON c.usr_id = u.usr_id
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LEFT JOIN db_comment_reaction_counts rc ON c.comment_id = rc.comment_id
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WHERE c.parent_comment_id = ? AND c.approved = 1
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ORDER BY c.timestamp ASC
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LIMIT ?";
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$result = $this->db->execute($sql, [$parent_comment_id, $limit]);
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if (!$result) {
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return [];
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}
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return $this->db->resultsToArray($result);
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}
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/**
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* Pin/unpin comment
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*/
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public function pinComment($comment_id, $video_owner_id) {
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// Verify ownership
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$sql = "SELECT v.usr_id
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FROM db_comments c
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JOIN db_videofiles v ON c.video_id = v.video_id
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WHERE c.comment_id = ?";
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$result = $this->db->execute($sql, [$comment_id]);
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if (!$result || $this->db->rowCount($result) == 0) {
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return false;
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}
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$row = $this->db->fetch($result);
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if ($row['usr_id'] != $video_owner_id) {
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return false; // Not the video owner
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}
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// Unpin all other comments for this video first
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$sql = "UPDATE db_comments c
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JOIN (SELECT video_id FROM db_comments WHERE comment_id = ?) vid
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ON c.video_id = vid.video_id
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SET c.is_pinned = 0";
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$this->db->execute($sql, [$comment_id]);
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// Pin this comment
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$sql = "UPDATE db_comments SET is_pinned = 1 WHERE comment_id = ?";
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$this->db->execute($sql, [$comment_id]);
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return true;
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}
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/**
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* Edit comment
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*/
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public function editComment($comment_id, $usr_id, $new_text) {
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// Verify ownership
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$sql = "SELECT usr_id FROM db_comments WHERE comment_id = ?";
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$result = $this->db->execute($sql, [$comment_id]);
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if (!$result || $this->db->rowCount($result) == 0) {
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return false;
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}
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$row = $this->db->fetch($result);
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if ($row['usr_id'] != $usr_id) {
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return false; // Not the comment owner
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}
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// Update comment
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$sql = "UPDATE db_comments
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SET comment = ?, is_edited = 1, edited_at = NOW()
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WHERE comment_id = ?";
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$this->db->execute($sql, [$new_text, $comment_id]);
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// Update mentions
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$this->db->execute("DELETE FROM db_comment_mentions WHERE comment_id = ?", [$comment_id]);
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$this->extractMentions($comment_id, $new_text);
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return true;
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}
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/**
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* Moderate comment
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*/
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public function moderateComment($comment_id, $moderator_id, $action, $reason = null) {
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// Log moderation action
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$sql = "INSERT INTO db_comment_moderation (comment_id, moderator_id, action, reason)
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VALUES (?, ?, ?, ?)";
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$this->db->execute($sql, [$comment_id, $moderator_id, $action, $reason]);
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// Apply action
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switch ($action) {
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case 'approve':
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$this->db->execute("UPDATE db_comments SET approved = 1 WHERE comment_id = ?", [$comment_id]);
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break;
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case 'reject':
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$this->db->execute("UPDATE db_comments SET approved = 0 WHERE comment_id = ?", [$comment_id]);
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break;
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case 'delete':
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$this->db->execute("DELETE FROM db_comments WHERE comment_id = ?", [$comment_id]);
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break;
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}
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$this->logger->info("Comment $comment_id moderated: $action by moderator $moderator_id");
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return true;
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}
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}
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