Limit POST data on fieldmanager repeating groups

fieldmanager-module-post-limits.js

'use strict';

jQuery(function ($) {
  var $form = $('form#post');
  if ($form.length && $('.fm-modules-wrapper').length) {
    $form.submit(function (e) {
      var $modules = $('.fm-modules-wrapper .fm-modules:not(.fmjs-proto)');
      if ($modules.length) {

        // Remove all protos to start.
        var potentialFields = $('.fm-modules-wrapper :input[name*="[proto]"]');

        // Go through all modules and remove the hidden/unused fields.
        $modules.each(function (i, el) {
          var $module = $(el),
              type = $('.fm-module_type select', $module).val();

          if ($module.length && type) {
            potentialFields = $.merge(potentialFields, $('> .fm-group-inner > .fm-wrapper[data-display-src="module_type"][data-display-value!="' + type + '"]', $module).find(':input'));
          }
        });

        // Re-enable disabled fields.
        if (potentialFields.length) {
          var disabledFields = [];

          potentialFields.each(function (i, el) {
            var $field = $(el);
            if (!$field.prop('disabled')) {
              $field.prop('disabled', true);
              disabledFields.push($field);
            }
          });

          setTimeout(function () {
            disabledFields.map(function ($field) {
              $field.prop('disabled', false);
            });
          }, 1000);
        }
      }
    });
  }
});