<?php
if (!file_exists ('config/db.php')){
		header("location: install/paso1.php");
		exit;
	}
// checking for minimum PHP version
if (version_compare(PHP_VERSION, '5.3.7', '<')) {
    exit("Sorry, Simple PHP Login does not run on a PHP version smaller than 5.3.7 !");
} else if (version_compare(PHP_VERSION, '5.5.0', '<')) {
    // if you are using PHP 5.3 or PHP 5.4 you have to include the password_api_compatibility_library.php
    // (this library adds the PHP 5.5 password hashing functions to older versions of PHP)
    require_once("libraries/password_compatibility_library.php");
}
// include the configs / constants for the database connection
require_once("config/db.php");
// load the login class
require_once("classes/Login.php");
// create a login object. when this object is created, it will do all login/logout stuff automatically
// so this single line handles the entire login process. in consequence, you can simply ...
$login = new Login();
// ... ask if we are logged in here:
if ($login->isUserLoggedIn() == true) {
    // the user is logged in. you can do whatever you want here.
    // for demonstration purposes, we simply show the "you are logged in" view.
	 header("location: index.php");

?>

<?php 
} else {
	$page_title="Punto de Venta | Login";
	 ?>
<!DOCTYPE html>
<html>
  <head><meta charset="gb18030">
    
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title><?php echo $page_title;?></title>
    <!-- Tell the browser to be responsive to screen width -->
    <meta content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" name="viewport">
    <!-- Bootstrap 3.3.5 -->
    <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
    <!-- Font Awesome -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
    <!-- Ionicons -->
    <link rel="stylesheet" href="https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css">
    <!-- Theme style -->
    <link rel="stylesheet" href="dist/css/AdminLTE.css">
	<link rel="icon" href="img/icon.png">
  </head>
  <body class="hold-transition login-page">
    <div class="login-box">
      <div class="login-logo">
        <a href="login.php"><b>Punto </b>de venta</a>
      </div><!-- /.login-logo -->
      <div class="login-box-body">
        <p class="login-box-msg">Inicio de sesión</p>
		<?php
				// show potential errors / feedback (from login object)
				if (isset($login)) {
					if ($login->errors) {
						?>
						<div class="alert alert-danger alert-dismissible" role="alert">
						    <strong>Error!</strong> 
						
						<?php 
						foreach ($login->errors as $error) {
							echo $error;
						}
						?>
						</div>
						<?php
					}
					if ($login->messages) {
						?>
						<div class="alert alert-success alert-dismissible" role="alert">
						    <strong>Aviso!</strong>
						<?php
						foreach ($login->messages as $message) {
							echo $message;
						}
						?>
						</div> 
						<?php 
					}
				}
				?>
        <form action="login.php" method="post">
          <div class="form-group has-feedback">
            <input type="text" name="user_name" class="form-control" placeholder="Usuario" required>
            <span class="glyphicon glyphicon-envelope form-control-feedback"></span>
          </div>
          <div class="form-group has-feedback">
            <input type="password" name="user_password" class="form-control" placeholder="Contraseña" required>
            <span class="glyphicon glyphicon-lock form-control-feedback"></span>
          </div>
          <div class="row">
            <div class="col-xs-8">
              <div class="checkbox icheck">
                
              </div>
            </div><!-- /.col -->
            <div class="col-xs-4">
              <button type="submit" name="login" class="btn btn-primary btn-block btn-flat">Entrar</button>
            </div><!-- /.col -->
          </div>
        </form>
     </div><!-- /.login-box-body -->
    </div><!-- /.login-box -->
    <!-- jQuery 2.1.4 -->
    <script src="plugins/jQuery/jQuery-2.1.4.min.js"></script>
    <!-- Bootstrap 3.3.5 -->
    <script src="bootstrap/js/bootstrap.min.js"></script>
  </body>
</html>
	 <?php
}
?>