<?php

include_once('class_user.php');

    $userObject = new user();

if(!$userObject->checkLogin()){

include_once('class_inputValidation.php');

if(isset($_POST['userName']) && isset($_POST['userPassword'])){
    $validate = new inputValidation();

    $rules = array(
            'userName' => array('type' => 'text', 'name' => 'Username', 'required' => true,
                                    'trim' => true, 'min' => '3', 'max' => '30' ),
            'userPassword' => array('type' => 'text', 'name' => 'Password', 'required' => true,
                                    'trim' => true, 'min' => '3', 'max' => '30' )
            );

    $validate->addUserInput($_POST);

    $validate->addValidationRules($rules);

    $validate->startValidation();

}

if(!isset($_POST['userName']) && !isset($_POST['userPassword']) ||
    !empty($validate->inputErrors)){
?>

<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<p>User Name:
<input type="text" name="userName" size="10"
value="<?php echo $validate->inputValidated['userName']; ?>">
<span class="error">* <?php echo $validate->inputErrors['userName']; ?></span></p>
<p>Password:
<input type="password" name="userPassword" size="10"
value="<?php echo $validate->inputValidated['userPassword']; ?>">
<span class="error">* <?php echo $validate->inputErrors['userPassword']; ?></span></p>
<input type="submit" value="Login">
</form>

<?php
}
else{

include_once('class_sqlGenerator.php');
include_once('class_PDOConfig.php');

    $userObject->userName = $validate->inputValidated['userName'];
    $userObject->userPassword = $validate->inputValidated['userPassword'];
    $userObject->userEmail = $validate->inputValidated['userEmail'];

    $db = new PDOV('localhost', 'OOP', 'yoyo', 'OOP');

    $dbQuery = new sqlGenerator();

    $dbQuery->table = "`usersExample`";

    $data = array(
        '`userName`' => array(),
        '`userPassword`' => array(),
        '`userEmail`'   =>  array(),
        '`userID`'  =>  array());

    $queryType = array('sqlQuery' => array('type' => 'SELECT',
                                                    'whereCol' => '`userName`',
                                                    'whereVal' => $validate->inputValidated['userName']));

    $sql = $dbQuery->sqlGeneratorStart($data, $queryType);

    $stmt = $db->preparedQuery($sql);

    $dbObject = $stmt->fetchObjs('User');

    try{$userObject->verifyCredentials($dbObject);}
    catch(Exception $e){ echo "Error: " .$e->getMessage; }

    if($userObject->checkLogin()){

        echo "Welcome " .$userObject->userName. ", you are now logged in!";

    }
}
}

else{

echo "Hello Again!";

}
?>