<?php
class Db {
	private static $instance;
	private $dbh;

	private function __construct() {
		try {
			$this->dbh = new PDO('sqlite:' . SCRATCH_DB);
		} catch (Exception $e) {
			die("Unable to initialize database driver (SQLite): $e");
		}
		//$this->dbh->busyTimeout(30*1000);
		$this->dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
		$this->dbh->query('PRAGMA journal_mode = wal;');
	}

	public static function get() {
		if (self::$instance == null)
			self::$instance = new self();

		return self::$instance->dbh;
	}

};

?>