<?php
    session_start();

    $username = "";
    $email    = "";
    $jidlopondeli="";
    $jidloutery="";
    $jidlostreda="";
    $jidloctvrtek="";
    $jidlopatek="";

    $errors = array();
    $_SESSION['success'] = "";

    $db = mysqli_connect('localhost', 'root', '', 'uzivatele');

    if (isset($_POST['reg_user'])) {
        $username = mysqli_real_escape_string($db, $_POST['username']);
        $email = mysqli_real_escape_string($db, $_POST['email']);
        $password_1 = mysqli_real_escape_string($db, $_POST['password_1']);
        $password_2 = mysqli_real_escape_string($db, $_POST['password_2']);

        if (empty($username)) { array_push($errors, "Zadejte uživatelské jméno"); }
        if (empty($email)) { array_push($errors, "Zadejte e-mail"); }
        if (empty($password_1)) { array_push($errors, "Zadejte heslo"); }

        if ($password_1 != $password_2) {
            array_push($errors, "Hesla se neshodují");
        }

        if (count($errors) == 0) {
            $password = md5($password_1);
            $query = "INSERT INTO users (username, email, password)
                      VALUES('$username', '$email', '$password')";
            mysqli_query($db, $query);

            $_SESSION['username'] = $username;
            $_SESSION['success'] = "Nyní jste přihlášen/a";
            header('location: index.php');
        }

    }

    if (isset($_POST['login_user'])) {
        $username = mysqli_real_escape_string($db, $_POST['username']);
        $password = mysqli_real_escape_string($db, $_POST['password']);

        if (empty($username)) {
            array_push($errors, "Zadejte uživatelské jméno");
        }
        if (empty($password)) {
            array_push($errors, "Zadejte heslo");
        }

        if (count($errors) == 0) {
            $password = md5($password);
            $query = "SELECT * FROM users WHERE username='$username' AND password='$password'";
            $results = mysqli_query($db, $query);

            if (mysqli_num_rows($results) == 1) {
                $_SESSION['username'] = $username;
                $_SESSION['success'] = "Nyní jste přihlášen/a";
                header('location: index.php');
            }else {
                array_push($errors, "Zadali jste špatné uživatelské jméno/heslo");
            }
        }

    }
    if (isset($_POST['potvrdit'])) {
        $jidlopondeli=$_POST['jidlopondeli'];
        $jidloutery=$_POST['jidloutery'];
        $jidlostreda=$_POST['jidlostreda'];
        $jidloctvrtek=$_POST['jidloctvrtek'];
        $jidlopatek=$_POST['jidlopatek'];




        echo $_SESSION['username'] . "<br>";
        echo $jidlopondeli;

        $prep = $db->prepare("INSERT INTO obed (username, jidlopondeli, jidloutery, jidlostreda, jidloctvrtek, jidlopatek) VALUES (?, ?, ?, ?, ?, ?)");
        $prep->bind_param('ssssss',  $_SESSION['username'], $jidlopondeli, $jidlopondeli, $jidlopondeli, $jidlopondeli, $jidlopondeli);
        $prep->execute();
        $prep->close();

    }

?>