<?php
error_reporting(0);
require_once('func/db_connect.php');
require_once('func/func.php');
$submit = $_POST['check'];
$username = $_POST['username'];
$password = $_POST['password'];
$repassword = $_POST['repassword'];
$email = $_POST['email'];
$secreatq = $_POST['secretq'];
$secreta = $_POST['secreta'];
$result = mysqli_query($conn, "SELECT username FROM user_info WHERE username='".$username."'");

function dieWith($message) {
    header('refresh: 3; url=index.php');
    exit($message);
}

if ($submit == 1) {

    if (mysqli_num_rows($result) != 0)
    {
        dieWith("Username already exists.");
    }
    if(strlen($username) == 0){
        dieWith("You can't leave the username field blank.");
    }
    if(strlen($username) < 3){
        dieWith("Your username is too short.");
    }
    if(strlen($username) > 15){
        dieWith("Your username is too long.");
    }
    if(strlen($password) == 0){
        dieWith("You can't leave the password field blank.");
    }
    if(strlen($password) < 3){
        dieWith("Your password is too short.");
    }
    if(strlen($password) > 50){
        dieWith("Your password is too long.");
    }
    if($repassword != $password){
        dieWith("Your passwords doesn't match.");
    }
    if(strlen($email) == 0){
        dieWith("You can't leave the e-mail field blank.");
    }
    if(strlen($email) < 3){
        dieWith("Your e-mail is invalid.");
    }
    if(strlen($email) > 100){
        dieWith("Your e-mail is invalid.");
    }
    if(strlen($secreatq) == 0){
        dieWith("Please enter your secret question.");
    }
    if(strlen($secreatq) < 3){
        dieWith("Your secret question is too short.");
    }
    if(strlen($secreatq) > 50){
        dieWith("Your secret question is to long.");
    }
    if(strlen($secreta) == 0){
        dieWith("Please enter your secret answer.");
    }
    if(strlen($secreta) < 3){
        dieWith("Your secret answer is too short.");
    }
    if(strlen($secreta) > 50){
        dieWith("Your secret answer is to long.");
    }

// Register user
    $sql = "INSERT INTO user_info (username, password, email, secret_question, secret_answer) VALUES ('$username', '$password', '$email','$secreatq','$secreta')";
    mysqli_query($conn, $sql);
    echo 'Congratulations, your username <strong>'.$username.'</strong> is successfully registered. You can now log in. <br />';
    echo 'Username: '.$username. '<br />';
    echo 'Password: '.$password. '<br />';
    echo 'E-Mail: '.$email. '<br />';
    echo 'Secret Question: '.$secreatq. '<br />';
    echo 'Secret Answer: '.$secreta. '<br />';
    dieWith("You will be redirected to the index page after 5 seconds.");
    header('refresh: 5; url=index.php');
}
?>