<?php
require_once 'DB.class.php';
require_once 'Pagination.class.php';
require_once 'Reply.class.php';

class Comments {
	
	private $id;
	private $level;
	private $lap = 0;
	private $supercomments_per_page;
	private $moderation;
	private $conn;
	
	function __construct( $post_id ,$level, $supercomments, $moderation, $db_config ) {
		
		$this->id = (isset($post_id)) ? $post_id : "0";
		$this->level = (isset($level)) ? $level : "-1";
		$this->supercomments_per_page = (isset($supercomments)) ? $supercomments : "20";
		$this->moderation = (isset($moderation)) ? $moderation : false;
		$db = new DB($db_config);
		$this->conn = $db->connect();
		
	}
	
		private function get_gravatar( $email ) {
		
		$default = "";
		$size = "65";
		return "thumb.png";
		
	}

	public function getComments() {

		$reply = new Reply();
		(isset($_POST['comment_post_ID'])) ? $validation = $reply->validation($this->moderation) : $validation = "";
		
		$htmlComments = "";
		
		$accepted = "";
		if ($this->moderation)
			$accepted = " AND accepted = true";
		
		$pager = new Pagination($this->conn, "SELECT * FROM comments WHERE parent_id = 0 AND post_id = ".$this->id.$accepted, $this->supercomments_per_page, 5, "");
		$rs = $pager->paginate();
		
		if ($rs == true) {
			while($row = mysql_fetch_assoc($rs))
				$htmlComments .= $this->hierarchy(0,$row,$this->lap);
		} else
			$nofound = '<br/><div class="notification error"><div>No comments yet! Be the first:</div></div>';

		return (isset($nofound) ? $nofound : '').$validation.$pager->renderFullNav().'
		<div class="comments block">
			<div class="comments">'
			.$htmlComments.
			'</div>
		</div>
		'.$pager->renderFullNav().$reply->form($this->id, (isset($_GET['replytocom'])) ? $_GET['replytocom'] : "");
		
	}
	
	/*
	This private function checks whether there are any comment whose parent_id is the same as its.
	If there's any such comment, it again executes the same function.
	*/
	private function hierarchy( $hl, $row, $laps ) {
		
		$htmlComments = '
		<div class="comment '.(($hl == 0) ? 'item' : 'reply').'" id="comment-'.$row['id'].'">
			<div class="info">
				<strong><a href="#" class="url">'.$row['author'].'</a></strong><em>'.date('F j, Y', strtotime($row['created_at'])).'</em>
				'.(($this->level != $laps) ? '<a class="comment-reply" href="'.((isset($_GET['page'])) ? "?page=".$_GET['page']."&replytocom=".$row['id']."#respond" : "?replytocom=".$row['id']."#respond" ).'" onclick=\'return addComment.moveForm("comment-'.$row['id'].'", "'.$row['id'].'", "respond", "'.$this->id.'")\'>Reply</a>' : '').'
			</div>
			<div class="text">
				<div class="r">
					<div class="tl">
						<div class="tr">
							<div class="bl">
								<div class="br">
									<p>
										'.nl2br($row['comment']).'
									</p>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>
			';
		
		$laps++;
		
		$accepted = "";
		if ($this->moderation)
			$accepted = " AND accepted = true";
		
		$sql = "SELECT * FROM comments WHERE parent_id = ".$row['id']." AND post_id = ".$this->id.$accepted;
		$rows = mysql_query($sql);
		if (mysql_num_rows($rows) > 0) {
			
			if ($hl == 0)
				$htmlComments .= '<div class="children">';
			else
				$htmlComments .= '<div class="grandchildren">';
			while ($row = mysql_fetch_assoc($rows)) {
				if ($hl == 0)
					$htmlComments .= $this->hierarchy(1,$row,$laps);
				else
					$htmlComments .= $this->hierarchy(2,$row,$laps).((($hl == 2) and ($laps < 3)) ? '</div>' : '');
			}
			if (($hl == 2) and ($laps >= 3))
				$htmlComments .=  "</div>";
			if ($hl != 2)
				$htmlComments .=  "</div>";
				
		}
		$htmlComments .=  "</div>";
		return $htmlComments;
		
	}
	
	
}
?>