<?php

namespace Sabre;

class TestUtil {

    /**
     * This function deletes all the contents of the temporary directory.
     *
     * @return void
     */
    static function clearTempDir() {

        self::deleteTree(SABRE_TEMPDIR, false);

    }


    private static function deleteTree($path, $deleteRoot = true) {

        foreach (scandir($path) as $node) {

            if ($node == '.' || $node == '..') continue;
            $myPath = $path . '/' . $node;
            if (is_file($myPath)) {
                unlink($myPath);
            } else {
                self::deleteTree($myPath);
            }

        }
        if ($deleteRoot) {
            rmdir($path);
        }

    }

    static function getMySQLDB() {

        try {
            $pdo = new \PDO(SABRE_MYSQLDSN, SABRE_MYSQLUSER, SABRE_MYSQLPASS);
            $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
            return $pdo;
        } catch (\PDOException $e) {
            return null;
        }

    }

    static function getSQLiteDB() {

        $pdo = new \PDO('sqlite:' . SABRE_TEMPDIR . '/pdobackend');
        $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
        return $pdo;

    }

    static function getPgSqlDB() {

        //try {
            $pdo = new \PDO(SABRE_PGSQLDSN);
            $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
            return $pdo;
        //} catch (\PDOException $e) {
        //    return null;
        //}

    }


}