formbricks.php

<?php

/*
 * Plugin Name:       Formbricks
 * Plugin URI:        https://github.com/formbricks/wordpress
 * Description:       Official WordPress Plugin for Formbricks | An Open Source Survey Platform
 * Version:           1.0.2
 * Author:            Formbricks
 * Author Email:      hola@formbricks.com
 * Author URI:        https://formbricks.com
 * License:           GPL v2
 * License URI:       ./LICENSE.txt
 */

// If this file is called directly, abort.
if (!defined('WPINC')) {
    die;
}

// Increase the nonce lifespan to 1 day (86400 seconds)
add_filter('csrf_token_lifespan', function () {
    return 86400;
});

/**
 * Currently plugin version.
 * Start at version 1.0.0 and use SemVer - https://semver.org
 * Rename this for your plugin and update it as you release new versions.
 */
define('FORMBRICKS_VERSION', '1.0.1');

/**
 * The code that runs during plugin activation.
 * This action is documented in includes/class-formbricks-activator.php
 */
function formbricks_activate_plugin()
{
    require_once plugin_dir_path(__FILE__) . 'includes/class-formbricks-activator.php';
    Formbricks_Activator::activate();
}

/**
 * The code that runs during plugin deactivation.
 * This action is documented in includes/class-formbricks-deactivator.php
 */
function formbricks_deactivate_plugin()
{
    require_once plugin_dir_path(__FILE__) . 'includes/class-formbricks-deactivator.php';
    Formbricks_Deactivator::deactivate();
}

register_activation_hook(__FILE__, 'formbricks_activate_plugin');
register_deactivation_hook(__FILE__, 'formbricks_deactivate_plugin');

/**
 * The core plugin class that is used to define internationalization,
 * admin-specific hooks, and public-facing site hooks.
 */
require plugin_dir_path(__FILE__) . 'includes/class-formbricks.php';

/**
 * Begins execution of the plugin.
 *
 * Since everything within the plugin is registered via hooks,
 * then kicking off the plugin from this point in the file does
 * not affect the page life cycle.
 *
 * @since    1.0.0
 */

function formbricks_run_plugin()
{

    $plugin = new Formbricks();
    $plugin->run();
}
formbricks_run_plugin();


function formbricks_admin_settings_page()
{

    add_menu_page(
        'Formbricks Settings',
        'Formbricks',
        'manage_options',
        'formbricks-settings',
        'formbricks_settings_page_content',
        plugin_dir_url(__FILE__) . 'public/formbricks.svg',
    );
}

function formbricks_settings_page_content()
{
    $nonce = wp_create_nonce('formbricks_settings_nonce');
    $form_submitted = isset($_POST['formbricks_settings_nonce_field']);

    if ($form_submitted && wp_verify_nonce(sanitize_text_field(wp_unslash($_POST['formbricks_settings_nonce_field'])), 'formbricks_settings_nonce')) {
        $environment_id = isset($_POST['formbricks_environment_id']) ? sanitize_text_field(wp_unslash($_POST['formbricks_environment_id'])) : '';
        $api_host = isset($_POST['formbricks_api_host']) ? esc_url_raw(wp_unslash($_POST['formbricks_api_host'])) : '';
        update_option('formbricks_environment_id', $environment_id);
        update_option('formbricks_api_host', $api_host);
        echo '<div id="formbricks-settings-saved" class="updated notice is-dismissible"><p>Settings saved successfully!</p></div>';
    } elseif ($form_submitted) {
        echo '<div id="formbricks-settings-error" class="error notice is-dismissible"><p>Error saving settings: Nonce verification failed. Please try again.</p></div>';
    }
    ?>
    <div class="wrap">
        <h2>Formbricks Settings</h2>

        <!-- Setup Checklist -->
        <div class="container">
            <h3>Setup Checklist</h3>
            <p>To run targeted surveys on your website, you need to complete the following steps:</p>

            <ul>
                <li>1. Free Formbricks Account (No Credit Card Needed) <a href="https://app.formbricks.com/auth/signup"
                        target="_blank">Signup here</a></li>
                <li>2. The <b>environment ID</b> of your account. You find it in your Formbricks account settings under
                    "Setup Checklist"</li>
                <li>3. The <b>API Host</b> When you use the Formbricks Cloud it is always "https://app.formbricks.com". Only
                    when you self-host Formbricks, it would be different</li>
                <li>4. Here is a <a href="https://formbricks.com/docs/getting-started/framework-guides#prerequisites"
                        target="_blank">detailed guide</a> on how to get started</li>
            </ul>
        </div>

        <!-- Configuration -->
        <div class="container">
            <form method="post" action="options.php">
                <?php wp_nonce_field('formbricks_settings_nonce', 'formbricks_settings_nonce_field'); ?>
                <?php settings_fields('formbricks_settings_group'); ?>
                <?php do_settings_sections('formbricks-settings'); ?>
                <h3>Configuration</h3>

                <div>
                    <div>
                        <b>Environment ID</b>
                        <p>You can find your environment ID in your Formbricks account under "Setup Checklist". It looks
                            like: clmyq4k....</p>
                        <input type="text" name="formbricks_environment_id" id="formbricks_environment_id"
                            value="<?php echo esc_attr(get_option('formbricks_environment_id')); ?>" />
                    </div>
                    <div style="margin-top: 20px;">
                        <b>API Host</b>
                        <p>When you use the Formbricks Cloud it is always "https://app.formbricks.com". Only when you
                            self-host Formbricks, it would be different</p>
                        <input type="text" name="formbricks_api_host" id="formbricks_api_host"
                            value="<?php echo esc_attr(get_option('formbricks_api_host')); ?>" />
                    </div>
                    <div style="margin-top: 20px;">
                        <div style="display: flex; align-items: center; gap: 10px;">
                            <button type="button" id="formbricks-test-ping" class="test-button">Check Connection</button>
                            <button type="submit" id="formbricks-save-changes" class="save-button" disabled>Save
                                Changes</button>
                        </div>
                        <p id="formbricks-ping-result"></p>
                    </div>
                </div>
            </form>
        </div>

        <!-- Enable Formbricks -->
        <div class="container">
            <form method="post" action="options.php">
                <?php wp_nonce_field('formbricks_toggle_nonce', 'formbricks_toggle_nonce_field'); ?>
                <?php settings_fields('formbricks_toggle_group'); ?>
                <?php do_settings_sections('formbricks-toggle'); ?>
                <h3>Enable Formbricks</h3>
                <!-- Show Formbricks is enabled or not -->
                <p>
                    <b>Formbricks is currently: </b>
                    <?php
                    $globalToggle = get_option('formbricks_global_toggle');
                    if ($globalToggle == 'on') {
                        echo '<span style="color: green;">Enabled ✅</span>';
                    } else {
                        echo '<span style="color: red;">Disabled ❌</span>';
                    }
                    ?>
                </p>
                <label class="toggle-switch">
                    <input type="checkbox" name="formbricks_global_toggle" <?php checked(get_option('formbricks_global_toggle'), 'on'); ?> />
                    <span class="slider"></span>
                </label>
                <div style="margin-top: 20px;">
                    <input type="submit" class="save-button" value="Save Changes" />
                </div>
                <div style="margin-top: 20px;">
                    <b>What now?</b>
                    <p>
                        Create a survey on Formbricks to display on your website. <a
                            href="https://formbricks.com/docs/integrations/wordpress" target="_blank">Here is a step by step
                            guide</a>
                    </p>
                    <p>
                        Help needed? <a href="https://formbricks.com/discord" target="_blank">Join our Discord Community</a>
                    </p>
                </div>
            </form>
        </div>
    </div>
    <?php
}

function formbricks_register_toggle_settings()
{
    register_setting('formbricks_toggle_group', 'formbricks_global_toggle', function ($option) {
        if (isset($_POST['formbricks_toggle_nonce_field']) && wp_verify_nonce(sanitize_text_field(wp_unslash($_POST['formbricks_toggle_nonce_field'])), 'formbricks_toggle_nonce')) {
            return $option;
        } else {
            add_settings_error('formbricks_global_toggle', 'formbricks_toggle_nonce_error', 'Error saving settings: Nonce verification failed. Please try again.');
            return get_option('formbricks_global_toggle');
        }
    });
}


function formbricks_register_settings()
{
    register_setting('formbricks_settings_group', 'formbricks_environment_id', 'sanitize_text_field');
    register_setting('formbricks_settings_group', 'formbricks_api_host', 'esc_url_raw');
}

add_action('admin_menu', 'formbricks_admin_settings_page');
add_action('admin_init', 'formbricks_register_settings');
add_action('admin_init', 'formbricks_register_toggle_settings');


// Enqueue JavaScript on the frontend
function formbricks_enqueue_script()
{
    if (!is_admin()) {
        $globalToggle = get_option('formbricks_global_toggle');

        if ($globalToggle == 'on') {
            $environmentId = get_option('formbricks_environment_id');
            $apiHost = get_option('formbricks_api_host');

            if (!empty($environmentId) && !empty($apiHost)) {
                wp_enqueue_script(
                    'formbricks',
                    $apiHost . '/js/formbricks.umd.cjs',
                    array('jquery'),
                    '3.0.1',
                    array(
                        'strategy' => 'defer',
                        'in_footer' => true,
                    )
                );

                wp_enqueue_script(
                    'formbricks-init',
                    plugin_dir_url(__FILE__) . 'public/js/index.js',
                    array('jquery', 'formbricks'),
                    FORMBRICKS_VERSION,
                    array(
                        'strategy' => 'defer',
                        'in_footer' => true,
                    )
                );

                wp_localize_script(
                    'formbricks',
                    'formbricksPluginSettings',
                    array(
                        'environmentId' => $environmentId,
                        'apiHost' => $apiHost,
                    )
                );
            }
        }
    }
}

add_action('wp_enqueue_scripts', 'formbricks_enqueue_script');

// Enqueue Scripts and Styles
function formbricks_enqueue_admin_scripts($hook) {
    if ('toplevel_page_formbricks-settings' !== $hook) {
        return;
    }

    // Enqueue jQuery
    wp_enqueue_script('jquery');

    // Enqueue admin script
    wp_enqueue_script(
        'formbricks-admin',
        plugin_dir_url(__FILE__) . 'admin/js/formbricks-admin.js',
        array('jquery'),
        FORMBRICKS_VERSION,
        true
    );

    // Add settings fade out script
    wp_add_inline_script(
        'formbricks-admin',
        'jQuery(document).ready(function ($) { 
            setTimeout(function () { 
                $("#formbricks-settings-saved").fadeOut("slow"); 
            }, 5000); 
        });'
    );

    wp_add_inline_script(
        'formbricks-admin',
        'jQuery(document).ready(function ($) {
            function handlePingResponse(response) {
                var isValidResponse = response && (response.data || response.product || response.environmentId);
                $("#formbricks-ping-result").html(isValidResponse ?
                    "<span style=\"color: green;\">Test Request Success! Click the Save Changes Button</span>" :
                    "<span style=\"color: red;\">Error: Could not validate environment ID!</span>"
                );
                $("#formbricks-save-changes").prop("disabled", !isValidResponse);
            }

            function handlePingError(xhr) {
                var errorMessage = "Test Request Failed! ";
                if (xhr.status === 404) {
                    errorMessage += "Environment ID not found.";
                } else if (xhr.status === 0) {
                    errorMessage += "Could not connect to API host. Check the URL and try again.";
                } else {
                    errorMessage += "Make sure both field values are correct! (Status: " + xhr.status + ")";
                }
                $("#formbricks-ping-result").html("<span style=\"color: red;\">" + errorMessage + "</span>");
                $("#formbricks-save-changes").prop("disabled", true);
            }

            $("#formbricks-test-ping").on("click", function () {
                var environmentId = $("#formbricks_environment_id").val();
                var apiHost = $("#formbricks_api_host").val();
                apiHost = apiHost.replace(/\/$/, "");

                $("#formbricks-ping-result").html("<span style=\"color: blue;\">Testing connection...</span>");

                if (environmentId && apiHost) {
                    $.ajax({
                        url: apiHost + "/api/v1/client/" + environmentId + "/environment",
                        type: "GET",
                        dataType: "json",
                        success: function (response) {
                            handlePingResponse(response);
                        },
                        error: function (xhr, status, error) {
                            handlePingError(xhr);
                        }
                    });
                } else {
                    $("#formbricks-ping-result").html("<span style=\"color: red;\">Please fill in both fields!</span>");
                    $("#formbricks-save-changes").prop("disabled", true);
                }
            });

            $("#formbricks-save-changes").on("click", function () {
                var apiHost = $("#formbricks_api_host").val();
                $("#formbricks_api_host").val(apiHost.replace(/\/$/, ""));
            });
        });'
    );
}

add_action('admin_enqueue_scripts', 'formbricks_enqueue_admin_scripts');