<?php
class Metier_Util_PdoLib
{
    /**
     *
     * @var \PDO
     */
    protected $conn = false;

    /**
     * Connection PDO
     * Note : Transition avant de faire les librairies Metier PSR-4
     * @param array $config
     *  'host'     => 'IP',
     *  'port'     => '3306',
     *  'dbname'   => 'db',
     *  'charset'  => 'utf8',
     *  'user'     => 'user',
     *  'password' => 'password',
     * @return boolean|PDO
     */
    public function __construct(array $config = array())
    {
        $user = null;
        $password = null;
        $options = array();

        // Get Application config from registry
        if (count($config) == 0) {
            $c = Zend_Registry::get('config');
            $params = $c->profil->db->metier->params;
            $dsn = "mysql:host=".$params->host.
                ";port=".(isset($params->port) ? $params->port : '3306').
                ";dbname=".$params->dbname.
                ";charset=utf8";
            $user = $params->username;
            $password = $params->password;
        }
        // Get config from params
        else {
            $dsn = "mysql:host=".$config['host'].
                ";port=".(isset($config['port']) ? $config['port'] : '3306').
                ";dbname=".$config['dbname'].
                ";charset=".(isset($config['charset']) ? $config['charset'] : 'utf8');
            if (array_key_exists('username', $config)) {
                $user = $config['username'];
            }
            if (array_key_exists('password', $config)) {
                $password = $config['password'];
            }
            if (array_key_exists('options', $config)) {
                $options = $config['options'];
            }
        }

        // Try to load PDO
        try {
            $this->conn = new PDO($dsn, $user, $password, $options);
            $this->conn->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
        } catch (PDOException $e) {
            echo $e->getMessage();
            $this->conn = false;
        }
    }

    /**
     * Get connection
     * @return PDO
     */
    public function getConnection()
    {
        return $this->conn;
    }
}