1<?php
2
3namespace TableRoller\Table;
4
5class Manager
6{
7	static private $embedCalls = 0;
8
9	public function __construct(
10		private \helper_plugin_sqlite $db
11	){}
12
13	private static array $tables;
14
15	public function rollOn(string $name): string
16	{
17		$table = $this->getTable($name);
18		$result = $table->rollOnce();
19		return preg_replace_callback('/{{roll on:\s*([A-Za-z0-9_]+)\s*}}/i', [$this, 'embedResult'], $result);
20	}
21
22	private function embedResult($matches): string
23	{
24		self::$embedCalls++;
25		if (self::$embedCalls < 20) {
26			$table = $this->getTable($matches[1]);
27			$result = $table->rollOnce();
28			return preg_replace_callback('/{{roll on:\s*([A-Za-z0-9_]+)\s*}}/i', [$this, 'embedResult'], $result);
29		}
30
31		return "Too many recursive calls";
32	}
33
34	private function getTable(string $name): TableInterface
35	{
36		if (!isset(self::$tables[$name])) {
37			$result = $this->db->query('SELECT * FROM rtables WHERE id=? LIMIT 1', $name);
38			$row = $this->db->res_fetch_assoc($result);
39			if ($row['rows']) {
40				self::$tables[$name] = new DokuwikiJsonTable($row['rows']);
41			} else {
42				self::$tables[$name] = new BaseTable();
43			}
44		}
45
46		return self::$tables[$name];
47	}
48}
49