<?php



$usernameErr = $emailErr = $firstErr = $lastErr = $zipErr = $cityErr = $streetErr = "";
$username = $email = $pass = $first = $last = $zip = $city = $street = "";






if ($_SERVER["REQUEST_METHOD"] == "POST"){
    $username = ($_POST["usernamesignup"]);
// check if username contains only whitespace, numbers and underline
    if (!preg_match("/^[a-zA-Z0-9]*_?[a-zA-Z0-9]*$/", $username)) {
        $usernameErr = "Only letters,numbers and underline allowed";

    }

    $pass = ($_POST["passwordsignup"]);
// password needs atleast one letter, one number and needs to be at least 8 characters and max 12 characters
    if (!preg_match("/^(?=.*\d)(?=.*[A-Za-z])[0-9A-Za-z!@#$%]{8,12}$/", $pass)) {
        $passErr = "Password needs atleast one letter, one number and needs to be at least 8 characters and max 12 characters";
    }

    if ($_POST["passwordsignup"]==$_POST["passwordsignup_confirm"]){
        $passwordfailed="";}
    else{
        $passwordfailed="Password is not the same as the first input"; }

    $first = ($_POST["firstnamesignup"]);
// check if name only contains letters and whitespace
    if (!preg_match("/^[a-zA-Z ]*$/", $first)) {
        $firstErr = "Only letters and white space allowed";
    }

    $last = ($_POST["lastnamesignup"]);
// check if name only contains letters and whitespace
    if (!preg_match("/^[a-zA-Z ]*$/", $last)) {
        $lastErr = "Only letters and white space allowed";
    }

    $street = ($_POST["streetsignup"]);
// check if name only contains letters and whitespace
    if (!preg_match("/^[a-zA-Z ]*$/", $street)) {
        $streetErr = "only letters and whitespace allowed";

    }

    $zip = ($_POST["zipcodesignup"]);

    if (!preg_match("/^[0-9]{4}\s[A-Z]{2}$/", $zip)) {
        $zipErr = "Error zip code needs to be like 9999 AA";
    }

    $city = ($_POST["citysignup"]);
// check if name only contains letters and whitespace
    if (!preg_match("/^[a-zA-Z ]*$/", $city)) {
        $cityErr = "only letters and whitespace allowed";

    }

}

function displayRegister()
{

    if (isset($_POST['submitRegister'])) {
        if (isset($usernameErr,$passErr,$passwordfailed,$firstErr,$lastErr,$streetErr,$zipErr,$cityErr)){

            ;}
        else{
            sendRegisterForm();}

    }



    ?>


    <form method="post" autocomplete="on" id="register">
        <h1> Sign up </h1>
        <table>



            <tr>
                <td>
                    <label for="usernamesignup" class="label" data-icon="u">Username</label>
                </td>
                <td>
                    <input id="usernamesignup" class="input" name="usernamesignup" required="required" type="text"
                           placeholder="Username"/>




                </td>
            </tr>
            <tr>
                <td><label for="emailsignup" class="label" data-icon="e">E-mail</label></td>
                <td><input id="emailsignup" class="input" name="emailsignup" required="required" type="email"
                           placeholder="example@mail.com"/></td>

            </tr>
            <tr>
                <td><label for="passwordsignup" class="label" data-icon="p">Your password</label></td>
                <td><input id="passwordsignup" class="input" name="passwordsignup" required="required" type="password"
                           placeholder="Password"/></td>

            </tr>
            <tr>
                <td><label for="passwordsignup_confirm" class="label" data-icon="p">Please confirm your password</label>
                </td>
                <td><input id="passwordsignup_confirm" class="input" name="passwordsignup_confirm" required="required"
                           type="password" placeholder="Password"/></td>

            </tr>
            <tr>
                <td><label for="firstnamesignup" class="label" data-icon="u">First name</label></td>
                <td><input id="firstnamesignup" class="input" name="firstnamesignup" required="required" type="text"
                           placeholder="First name"/></td>


            </tr>
            <tr>
                <td><label for="lastnamesignup" class="label" data-icon="u">Last name</label></td>
                <td><input id="lastnamesignup" class="input" name="lastnamesignup" required="required" type="text"
                           placeholder="Last name"/></td>


            </tr>
            <tr>
                <td><label for="phonesignup" class="label" data-icon="u">Phone number</label></td>
                <td><input id="phonesignup" class="input" name="phonesignup" type="number" placeholder="0123456789"/>
                </td>


            </tr>

            <tr>
                <td><label for="streetsignup" class="label" data-icon="u">Street</label></td>
                <td><input id="streetsignup" class="input" name="streetsignup" required="required" type="text"
                           placeholder="Street"/></td>


            </tr>
            <tr>
                <td><label for="streetnumbersignup" class="label" data-icon="u">Street number</label></td>
                <td><input id="streetnumbersignup" class="input" name="streetnumbersignup" required="required"
                           type="number" placeholder="Streetnumber"/></td>

            </tr>
            <tr>
                <td><label for="additionsignup" class="label" data-icon="u">Addition</label></td>
                <td><input id="additionsignup" class="input" name="additionsignup" type="text" placeholder="Addition"/>
                </td>

            </tr>
            <tr>
                <td><label for="zipcodesignup" class="label" data-icon="u">Zipcode</label></td>
                <td><input id="zipcodesignup" class="input" name="zipcodesignup" required="required" type="text"
                           placeholder="1234AB"/></td>


            </tr>
            <tr>
                <td><label for="citysignup" class="label" data-icon="u">City</label></td>
                <td><input id="citysignup" class="input" name="citysignup" required="required" type="text"
                           placeholder="City"/></td>

            </tr>
            <tr>
                <td><input type="submit" value="Sign up" name="submitRegister" class="button"/></td>
            </tr>
        </table>
    </form>
    <?php






}?>