<?php
// Include config file
require_once "include/config.php";

// Define variables and initialize with empty values
$title = $text = "";
$title_err = $text_err = "";

// Processing form data when form is submitted
if($_SERVER["REQUEST_METHOD"] == "POST"){
    // Validate Title
    $input_title = trim($_POST["titel"]);
    if(empty($input_title)){
        $title_err = "Please enter your title.";
    } elseif(!filter_var($input_title, FILTER_VALIDATE_REGEXP, array("options"=>array("regexp"=>"/^[a-zA-Z\s]+$/")))){
        $title_err = "Please enter a valid title.";
    } else{
        $title = $input_title;
    }

    // Validate text
    $input_text = trim($_POST["tekst"]);
    if(empty($input_text)){
        $text_err = "Please enter your text.";
    } else{
        $text = $input_text;
    }


    // Check input errors before inserting in database
    if(empty($title_err) && empty($text_err)){
        // Prepare an insert statement
        $sql = "INSERT INTO blog (titel, tekst) VALUES (?, ?)";

        if($stmt = mysqli_prepare($link, $sql)){
            // Bind variables to the prepared statement as parameters
            mysqli_stmt_bind_param($stmt, "string", $param_title, $param_text);

            // Set parameters
            $param_title = $title;
            $param_text = $text;

            // Attempt to execute the prepared statement
            if(mysqli_stmt_execute($stmt)){
                // Records created successfully. Redirect to landing page
                header("location: index.php");
                exit();
            } else{
                echo "Something went wrong. Please try again later.";
            }
        }

        // Close statement
        mysqli_stmt_close($stmt);
    }

    // Close connection
    mysqli_close($link);
}
    ?>
        <?php
        include 'include/header.php';
        ?>

                                <h2>Blog aanmaken</h2>
                            <p>Vul de gegevens in om de blog aan te maken.</p>
                            <form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">

                                <div class="form-group <?php echo (!empty($title_err)) ? 'has-error' : ''; ?>">
                                    <label>Titel</label>
                                    <input type="text" name="titel" class="form-control" value="<?php echo $title; ?>">
                                    <span class="help-block"><?php echo $title_err;?></span>
                                </div>

                                <div class="form-group <?php echo (!empty($text_err)) ? 'has-error' : ''; ?>">
                                    <label>Tekst</label>
                                    <textarea name="tekst" ><?php echo $text; ?></textarea>
                                    <span class="help-block"><?php echo $text_err;?></span>
                                </div>

                                <input type="submit" class="btn btn-primary" value="Submit">
                                <a href="index.php" class="btn btn-default">Cancel</a>
                            </form>

    </body>
</html>