<?php
require_once(DIR_LIB . "ChaveHash/Cipher.php");
/**
 * DatabaseManager Class
 *
 * Manage and exports the db attributes
 *
 * @author  Hugo Carvalho
 * @category    Database
 * @since       21-09-2015
 */

final class DatabaseManager{

    private $hostname;
    private $username;
    private $password;
    private $database;
    private $active_record = "true";
    private $active_group = "default";
    private $dbdriver = "mysqli";
    private $dbprefix = "";
    private $pconnect = false;
    private $db_debug = true;
    private $cache_on = TRUE;
    private $cachedir = "";
    private $char_set = "latin1";
    private $dbcollat = "latin1_swedish_ci";
    private $cipher;

    private static $instance;

    protected function __construct($hostname,$username,$database){

        $this->setCipher(Cipher::getInstance());

        $this->setHostname($hostname);
        $this->setUsername($username);
        $this->setDatabase($database);
    }

    public static function initDatabase($hostname = null,$username = null,$database = null){
        if(self::$instance === null){
            self::$instance = new self($hostname,$username,$database);
        }

        return self::$instance;
    }

    public function &exportConfigCI(){
        $config = get_object_vars($this);
        $config_ci = array();

        foreach($config as $i=>$c){
           $config_ci[$this->getActiveGroup()][$i] = $c;
        }

        unset($config_ci[$this->getActiveGroup()]['active_record']);
        unset($config_ci[$this->getActiveGroup()]['active_group']);

        return $config_ci;
    }

    /**
    * Gets and sets for all attributes
    */
}