<?php
function displayRegister(){
    if(isset($_POST['submitRegister'])){
        sendRegisterForm();
    }


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


    ?>


    <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" />
    <?php
    if (empty($_POST["usernamesignup"])) {
        $usernameErr = "First Name is required";
        echo $usernameErr;
    } else {
        $username = test_input($_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";

        }
    }

        ?>


        </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>
        <?php
        if (empty($_POST["passwordsignup"])) {
            $passErr = "password is required";
        } else {
            $pass = test_input($_POST["passwordsignup"]);
            // password needs atleast one letter, one number and needs to be at least 8 characters and max 12 characters
            if (!preg_match("/^[a-zA-Z ]*$/", $pass)) {
                $passErr = "Password needs atleast one letter, one number and needs to be at least 8 characters and max 12 characters";
            }
        }
            ?>
            </tr>
            <tr>
                <td><label for="passwordsignup_confirm" class="label" data-icon="p">Please confirm your password</label></td>
                <td><input id="passwordsignup_confirm" class="input" name="passwordsignup_confirm" required="required" type="password" placeholder="Password"/></td>
                <?php
                if ($_POST["passwordsignup"]==$_POST["passwordsignup_confirm"]){
                    $passwordsucces="";}
                else{
                    $passwordfailed="Password is not the same as the first input"; }





                ?>
            </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>
            <?php
            if (empty($_POST["firstnamesignup"])) {
                $firstErr = "First Name is required";
            } else {
                $first = test_input($_POST["firstnamesignup"]);
                // check if name only contains letters and whitespace
                if (!preg_match("/^[a-zA-Z ]*$/", $first)) {
                    $firstErr = "Only letters and white space allowed";
                }
            }
                ?>
                </tr>
                <tr>
                <td><label for="lastnamesignup" class="label" data-icon="u">Last name</label></td>
                <td><input id="lastnamesignup" class="input" name="lastnamesignup" required="required" type="text" placeholder="Last name" /></td>
                <?php
                if (empty($_POST["lastnamesignup"])) {
                    $lastErr = "Last Name is required";
                } else {
                    $last = test_input($_POST["lastnamesignup"]);
                    // check if name only contains letters and whitespace
                    if (!preg_match("/^[a-zA-Z ]*$/", $last)) {
                        $lastErr = "Only letters and white space allowed";
                    }
                }
                    ?>

                    </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>
                    <?php
                    if (empty($_POST["streetnumbersignup"])) {
                        $streetErr = "streetname is required";
                    } else {
                        $street = test_input($_POST["streetnumbersignup"]);
                        // check if name only contains letters and whitespace
                        if (!preg_match("/^[a-zA-Z ]*$/", $street)) {
                            $streetErr = "only letters and whitespace allowed";
                        }
                    }
                        ?>

                        </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>
                        <?php
                        if (empty($_POST["zipcodesignup"])) {
                            $zipErr = "zipcode is required";
                        } else {
                            $zip = test_input($_POST["zipcodesignup"]);

                            if (!preg_match("/^[0-9]{4}\s[A-Z]{2}$/", $zip)) {
                                $zipErr = "Error zip code needs to be like 9999 AA";
                            }
                        }
                            ?>
                            </tr>
                            <tr>
                            <td><label for="citysignup" class="label" data-icon="u">City</label></td>
                            <td><input id="citysignup" class="input" name="citysignup" required="required" type="text" placeholder="City" /></td>
                            <?php
                            if (empty($_POST["citysignup"])) {
                                $cityErr = "cityname is required";
                            } else {
                                $city = test_input($_POST["citysignup"]);
                                // check if name only contains letters and whitespace
                                if (!preg_match("/^[a-zA-Z ]*$/", $city)) {
                                    $cityErr = "only letters and whitespace allowed";
                                }
                            }
                                ?>
                                </tr>
                                <tr>
                                    <td><input type="submit" value="Sign up" name="submitRegister" class="button"/></td>
                                </tr>
                                </table>
                                </form>
                                <?php echo  $username;
                                echo $email;
                                echo $pass;
                                echo $first;
                                echo $last;
                                echo $zip;
                                echo $city;
                                echo $street; } ?>