<?php
include_once("connection.php");
$blog_id = $_POST['blog_id'];
$commentQuery = "SELECT * FROM `comment` WHERE `parent_id` = '0' AND `blog_id` = $blog_id ";
$commentsResult = mysqli_query($conn, $commentQuery) or die("database error:". mysqli_error($conn));
$commentHTML = '';
while($comment = mysqli_fetch_assoc($commentsResult)){
	$commentHTML .= '<li class="comment">
						<div class="comment-body">
							<div class="comment-author vcard"> <img class="avatar photo" src="images/testimonials/pic1.jpg" alt=""> <cite class="fn">'.$comment["sender_name"].'</cite> <span class="says">says:</span> </div>
							<div class="comment-meta"> <a href="#">'.$comment["data_time"].'</a> </div>
							<p>'.$comment["comment"].'</p>
							<div class="reply"> <a  class="reply1" id="'.$comment["id"].'">Reply</a> </div>
						</div>
					</li>';
	$commentHTML .= getCommentReply($conn, $comment["id"] , $blog_id );
}
echo $commentHTML;

function getCommentReply($conn, $parentId = 0, $marginLeft = 0) {
    $blog_id = $_POST['blog_id'];
	$commentHTML = '';
	$commentQuery = "SELECT * FROM `comment` WHERE `parent_id`= $parentId AND `blog_id`=$blog_id";	
	$commentsResult = mysqli_query($conn, $commentQuery);
	$commentsCount = mysqli_num_rows($commentsResult);
	if($parentId == 0) {
		$marginLeft = 0;
	} else {
		$marginLeft = $marginLeft + 48;
	}
	if($commentsCount > 0) {
		while($comment = mysqli_fetch_assoc($commentsResult)){  
			$commentHTML .= '<ol class="children" style="list-style:none">
								<li class="comment odd parent">
									<div class="comment-body">
										<div class="comment-author vcard"> <img class="avatar photo" src="images/testimonials/pic3.jpg" alt=""> <cite class="fn">'.$comment["sender_name"].'</cite> <span class="says">says:</span> </div>
										<div class="comment-meta"> <a href="#">'.$comment["data_time"].'</a> </div>
										<p>'.$comment["comment"].'</p>
										<div class="reply"> <a  class="reply1" id="'.$comment["id"].'">Reply</a> </div>
									</div>
								</li>
							</ol>';
			$commentHTML .= getCommentReply($conn, $comment["id"], $marginLeft);
		}
	}
	return $commentHTML;
}
?>