<?php
if ( ! defined( 'ABSPATH' ) ) exit;

function accua_form_Load($class) {
  if (substr($class,0,10) === 'AccuaForm_') {
    $class = substr($class, 10);
    $file = ACCUA_FORMS_DIR . DIRECTORY_SEPARATOR . 'classes' . DIRECTORY_SEPARATOR . str_replace("_", DIRECTORY_SEPARATOR, $class) . ".php";
    if(is_file($file)) {
      include_once $file;
    }
  }
}
spl_autoload_register("accua_form_Load");

require_once('PFBC/Form.php');
require_once('AccuaForm.php');

define('ACCUA_FORM_API_PLUGIN_TEXTDOMAIN_PATH', dirname( plugin_basename( __FILE__ ) ) . '/languages/');

add_action('wp_enqueue_scripts', 'accua_form_enqueue_scripts_and_styles');
add_action('admin_enqueue_scripts', 'accua_form_enqueue_scripts_and_styles');
add_action('login_enqueue_scripts', 'accua_form_enqueue_scripts_and_styles');
function accua_form_enqueue_scripts_and_styles(){
  static $first = TRUE;
  if ($first) {
    wp_enqueue_script('jquery');
    
    // In admin context, use WordPress's wp-color-picker (has all dependencies available)
    if (is_admin()) {
      wp_enqueue_style('wp-color-picker');
      wp_enqueue_script('wp-color-picker');
    }
    // On frontend, we use HTML5 native color input (no JS dependencies needed)
    // This is WCAG 2.2 AA compliant, keyboard accessible, and works in all modern browsers
    
    wp_enqueue_style('accua-forms-api-base', plugins_url('assets/css/frontend.css', ACCUA_FORMS_FILE), array(), ACCUA_FORMS_CSS_VERSION);
    
    // Accessible file upload with drag & drop (WCAG 2.2 AA compliant)
    wp_enqueue_script(
      'accua-file-upload',
      plugins_url('assets/js/frontend/file-upload.js', ACCUA_FORMS_FILE),
      array(), // No dependencies - vanilla JS
      ACCUA_FORMS_JS_VERSION,
      true // Load in footer
    );
    
    // Localized strings for file upload
    wp_localize_script('accua-file-upload', 'accuaFileUploadL10n', array(
      'fileTooLarge'  => __('File exceeds maximum allowed size', 'contact-forms'),
      'invalidType'   => __('File type not allowed', 'contact-forms'),
      'fileAdded'     => __('File added', 'contact-forms'),
      'filesAdded'    => __('files added', 'contact-forms'),
      'fileRemoved'   => __('File removed', 'contact-forms'),
      'errors'        => __('Errors', 'contact-forms'),
      'removeFile'    => __('Remove', 'contact-forms'),
    ));
    
    // libphonenumber-js for phone validation (min bundle, ~175KB)
    wp_enqueue_script(
      'libphonenumber',
      plugins_url('assets/js/frontend/libphonenumber-min.js', ACCUA_FORMS_FILE),
      array(), // No dependencies
      '1.12.5', // libphonenumber-js version
      true // Load in footer
    );
    
    // Phone validation for telephone fields (WCAG 2.2 AA compliant)
    // Uses libphonenumber-js for proper international phone validation
    wp_enqueue_script(
      'accua-phone-validation',
      plugins_url('assets/js/frontend/phone-validation.js', ACCUA_FORMS_FILE),
      array('jquery', 'libphonenumber'),
      ACCUA_FORMS_JS_VERSION,
      true // Load in footer
    );
    
    // Localized strings for phone validation
    wp_localize_script('accua-phone-validation', 'accuaPhoneL10n', array(
      'phoneError' => __('Please enter a valid phone number (e.g. +39 333 1234567)', 'contact-forms'),
    ));
    
    // Post select - AJAX searchable dropdown for post-select fields (WCAG 2.2 AA compliant)
    wp_enqueue_script(
      'accua-post-select',
      plugins_url('assets/js/frontend/post-select.js', ACCUA_FORMS_FILE),
      array(), // No dependencies - vanilla JS
      ACCUA_FORMS_JS_VERSION,
      true // Load in footer
    );
    
    // Localized strings for post select
    wp_localize_script('accua-post-select', 'accuaPostSelectI18n', array(
      'select'    => __('Select...', 'contact-forms'),
      'search'    => __('Search...', 'contact-forms'),
      'loading'   => __('Loading...', 'contact-forms'),
      'noResults' => __('No results found', 'contact-forms'),
      'loadMore'  => __('Loading more...', 'contact-forms'),
    ));
    
    /**
     * Action fired after Contact Forms enqueues its scripts and styles.
     * External plugins can use this to enqueue their own field-specific assets.
     */
    do_action( 'accua_forms_enqueue_scripts' );

    $first = FALSE;
  }
}

// Runs at init priority 5 so that:
// 1. Translations are safe to use (after_setup_theme has fired before init).
// 2. SMTP plugins (WP Mail SMTP etc.) have already registered their phpmailer_init hooks
//    at plugins_loaded priority ≤ 10, so emails sent here still go through SMTP.
add_action('init', 'accua_form_init', 5);
function accua_form_init(){
  if (!defined('DOING_CRON')) {
    AccuaForm::isValid();
  }
}

add_action('wp_ajax_accua_form_submit', 'accua_form_ajax_submit_handler');
add_action('wp_ajax_nopriv_accua_form_submit', 'accua_form_ajax_submit_handler');
function accua_form_ajax_submit_handler(){
  header('Content-Type: text/html; charset='.get_option('blog_charset'));
  header('Cache-Control: no-transform');

  echo '<html><head></head><body><pre id="accua-form-ajax-response">';

  $result = AccuaForm::ajaxSubmit();
  
  // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- JSON encoded data for JavaScript consumption
  print _accua_forms_json_encode($result);

  echo '</pre><div id="accua-form-ajax-response-loaded"></div>';

  // phpcs:disable PluginCheck.CodeAnalysis.Heredoc.NotAllowed -- Heredoc for inline JavaScript
  echo <<<EOJS
<script type="text/javascript">
<!--
try {
  window.parent.postMessage(document.getElementById("accua-form-ajax-response").innerHTML, '*');
} catch (err) {
}
// -->
</script>
EOJS;
  // phpcs:enable PluginCheck.CodeAnalysis.Heredoc.NotAllowed

  echo '</body></html>';
  die('');
}