new-bigly-chat/libs/comment.php

<?php
    require("../libs/markdown.php");
	function comments($typer, $idr) {
	    $ref = 1732684297;
 		global $username;
		global $db;
		$page = array_key_exists('page',$_GET) ? ($_GET['page']) : 0;
		if ($username) {
			form("Broadcast your thoughts...", '', array(
				array('key' => 'Your message', 'type' => 'textarea', 'name' => 'post', 'default' => ''),
				array('key' => '','type' => 'hidden','name' => 'type', 'default' => $typer),
				array('key' => '','type' => 'hidden','name' => 'id', 'default' => $idr), 
		    	array('key' => 'Attachments', 'type' => 'file', 'name' => 'file', 'default' => '')
			),'/index.php');
		}

		$qs = parse_url($_SERVER['REQUEST_URI']);

		if (is_null($qs)) $qs = array('query' => '?');
		$qsq = $qs['query'];

		$qss = array();
		
		parse_str($qsq,$qss);

		$qss['page'] = $page + 1;
		$qs_next = http_build_query($qss);
		$qss['page'] = $page - 1;
		$qs_prev = http_build_query($qss);
		?>

		<div>
		<?php if ($page > 0) { ?>
			<a class="form-button" href="?<?php echo $qs_prev ?>">Previous</a>
		<?php } ?>
		<a class="form-button" href="?<?php echo $qs_next ?>">Next</a>
		</div>

		<?php
			$posts = array();

			$theId = $idr;

			while (true) {
				$stmt = $db->prepare("SELECT * FROM comment WHERE id = ? ORDER BY date DESC");
				$stmt->execute([
					$theId
				]);	
				$posts1 = $stmt->fetchAll(PDO::FETCH_DEFAULT);
				if (is_null($posts1) || count($posts1) < 1) break;
				$theId = $posts1[0]['targetid'];
				$posts = array_merge($posts1,$posts);
			}

			$stmt = $db->prepare("SELECT * FROM comment WHERE targetType = ? AND targetId = ? ORDER BY date DESC LIMIT ? OFFSET ?");
			$stmt->execute([
				$typer,
				$idr,
				10,
				$page * 10
			]);
			
			$posts2 = $stmt->fetchAll(PDO::FETCH_DEFAULT);

			$edge = count($posts);
			$posts = array_merge($posts,$posts2);

			foreach ($posts as $key => $post) { 
				if ($key == $edge) { ?>
					<h2>Replies</h2>
				<?php } ?>
				<div class='comment'>
					<div class='avatar'>
						<img src='/pfp/<?php echo $post['username'] ?>.png' class='avatar-img'>
						<div>
							<div><b>
									<a class='link' href='/user.php?id=<?php echo $post['username'] ?>'>
										<?php echo $post['username'] ?>
									</a>
								</b></div>
							<div><b>
									<a class='link' href='/comment.php?id=<?php echo $post['id'] ?>'>
										<?php echo date(DATE_RFC2822,$post['date'] + $ref) ?>
									</a>
								</b></div>
						</div>
					</div>
					<pre><?php echo markdown(htmlspecialchars($post['content'])) ?></pre>
				</div>
			<?php }
	}		
?>