/**
 * Em desenvolvimento.
 * Objeto para gerenciar uma
 *conexão ao banco de dados Mysql
 * @author Igor
 */
class db {
    private $dsn;
    private $username;
    private $password;
    private $db;
    private $conn;

    private $arrConnAttr;//Array of connection attributes. Ex: ["PDO::ATTR_ERRMODE", "PDO::ERRMODE_EXCEPTION"]
    private $pathErroLog;//Path to save the erro log files. Ex:$_SERVER['DOCUMENT_ROOT'] . "/myDirRootProject/LogError"
    private $arrCatchConnResult;//Path to save the erro log files. Ex:$_SERVER['DOCUMENT_ROOT'] . "/myDirRootProject/LogError"
    private $die;//If we set $setValues["die"]=NULL, during the object initialization, errors will not stop the process.

    public $sql;






    public function __construct(array $setValues=NULL) {

         xdebug_break();
         $arrInitDefault["dsn"]="localhost";
         $arrInitDefault["username"]= "root";
         $arrInitDefault["password"]="";
         $arrInitDefault["db"]="drset2014";



         $arrInitDefault["arrConnAttr"]= ["PDO::ATTR_ERRMODE"," PDO::ERRMODE_EXCEPTION"];

         $arrInitDefault["pathErroLog"]= dirname(__FILE__)."/Log/Error";//Default path to dir. Note: error pathLog can be "/Log/Error/UserName" or "/Log/Error/UserId", etc
         $arrInitDefault["die"]=  TRUE;

         $arrInitDefault["sql"]=  FALSE;


         if(!is_null($setValues)){
              $arrInitDefault=  array_merge($arrInitDefault,$setValues);
          }

          //After merge, initialaze private variables with result merged $arrValues
          $this->dsn = $arrInitDefault["dsn"];
          $this->username = $arrInitDefault["username"];
          $this->password = $arrInitDefault["password"];
          $this->db = $arrInitDefault["db"];


          $this->arrConnAttr = implode(",", $arrInitDefault["arrConnAttr"]);
          $this->pathErroLog=$arrInitDefault["pathErroLog"];
          $this->die=$arrInitDefault["die"];
          xdebug_break();
         //This try and catch  is only to estabilish the connection during the initialization
         try {

                  $this->conn = new PDO("mysql:host=$this->dsn; dbname=$this->db", "$this->username", "$this->password");//Now private $conn is a PDO object

                  $this->conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);//Setting Attributes to the PDO object ($this->conn)
         }// End of try
         catch(PDOException $e){//If had some error. The PDO object ($this->conn) could not be created. Throw an error.
                 $this->arrCatchConnResult =  $this->saveLogError($e->getMessage());//Save a message in the log file and throw a message
                 $msg= $this->arrCatchConnResult["strToHTML"];
                 $this->conn = null;
                 if($this->die){
                       die($msg);
                 }
           }
    }




    public function saveLogError($msg=NULL,$sql=NULL) {
       $year = date("Y");
       $month = date("M");
       $day = date("d");
       $dt = date("d.M.Y_H.i.s");

       $pathErroLog=  $this->pathErroLog."/".$year."/".$month."/".$day."/";
       if (!is_dir($pathErroLog)) {
          mkdir($pathErroLog,0777,true);
       }//If is not a dir, create it.

       $sqlErrorStringTXT="";
       if(!is_null($sql)){
        $sqlErrorStringTXT = "Sql: $sql";
        $sqlErrorStringHTML = "<kbd>Sql</kbd>: $sql";
       }

///////////////  Maybe should be good save errors in database too.

$strToTxt=<<<EOF
>>>>>  Mensagem de erro:  <<<<< \n
Date:     $dt \n
Msg:     $msg \n
$sqlErrorStringTXT \n
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
EOF;

//Save error message to the file
$f=$pathErroLog."$dt.txt";
$myfile = fopen($f, "w") or die("Unable to open file!");
fwrite($myfile, $strToTxt);
fclose($myfile);

//Create a string to be displayed in the broser
$strToHTML=<<<EOF
<div class="alert alert-danger" role="alert">
Date:     $dt <br/>
Msg:     <span class="label label-danger">$msg</span><br/>
$sqlErrorStringHTML<br/>
</div>
EOF;

$arrCatchConnResult["status"]=0;
$arrCatchConnResult["strToTxt"]=$strToTxt;
$arrCatchConnResult["strToHTML"]=$strToHTML;

return $arrCatchConnResult;

}//End of saveLogError()
    public function db_Map() {

 }
    public function get_values() {
              try {
                     $stmt = $this->conn->prepare($this->sql);
                     $stmt->execute();
                     while ($field = $stmt->fetch(PDO::FETCH_ASSOC)) {
                      $arrResult[]=$field;
                    }
                    return $arrResult;
              }
              catch (PDOException $e) {
                    $this->arrCatchConnResult =  $this->saveLogError($e->getMessage(),  $this->sql);//Save a message in the log file and set a message
                    $msg= $this->arrCatchConnResult["strToHTML"];
                    $this->conn = null;
                    if($this->die){
                          die($msg);
                    }
              }
         }

}//End of class db