<?php
/*
 * Cryto Learn is more free software. It is licensed under the WTFPL, which
 * allows you to do pretty much anything with it, without having to
 * ask permission. Commercial use is allowed, and no attribution is
 * required. We do politely request that you share your modifications
 * to benefit other developers, but you are under no enforced
 * obligation to do so :)
 * 
 * Please read the accompanying LICENSE document for the full WTFPL
 * licensing text.
 */

if(!isset($_APP)) { die("Unauthorized."); }

if(empty($_POST['q']))
{
	die(json_encode(array(
		"error" => "No search query specified."
	)));
}
else
{
	$query = $_POST['q'];
	$terms = explode(" ", $query);
	
	$db_query_terms = array();
	
	foreach($terms as $term)
	{
		$db_query_terms[] = "`Title` LIKE ?";
		$db_query_arguments[] = "%{$term}%";
	}
	
	$db_query = implode(" AND ", $db_query_terms);
	array_unshift($db_query_arguments, '');
	unset($db_query_arguments[0]);
	
	try {
		$results_topics = Topic::CreateFromQuery("SELECT * FROM topics WHERE {$db_query}", $db_query_arguments);

		$return_objects = array();
	
		foreach($results_topics as $topic)
		{
			$return_objects[] =  $topic->AsDataset();
		}
		
		$sPageContents = json_encode($return_objects);
	} catch (NotFoundException $error) {
		$sPageContents = json_encode([]);
	}
}