edlp_d8/sites/all/modules/figli/edlp_ajax/edlp_ajax.module

<?php

# @Author: Bachir Soussi Chiadmi <bach>
# @Email:  bachir@figureslibres.io
# @Filename: edlp_ajax.module
# @License: GPL-V3

/**
 * Implements hook_theme().
 */
function edlp_ajax_theme($existing, $type, $theme, $path) {
  // @see https://www.drupal.org/docs/8/theming/twig/create-custom-twig-templates-from-custom-module
  return array(
    'edlp_ajax' => array(
      'file' => 'includes/edlp_ajax.inc',
      'variables' => array(
        'entity_type' => 'node',
        'entity' => NULL,
        'view_mode' => 'default'
      ),
    ),
  );
}

/**
 * Implements hook_theme_suggestions_HOOK().
 */
function edlp_ajax_theme_suggestions_edlp_ajax(array $vars) {
  // dpm($vars);
  $suggestions = [];
  // $node = $variables['elements']['#node'];
  $sanitized_view_mode = strtr($vars['view_mode'], '.', '_');
  //
  $suggestions[] = 'edlp_ajax__' . $vars['entity_type'];
  $suggestions[] = 'edlp_ajax__' . $vars['entity_type'] . '__' . $sanitized_view_mode;
  // $suggestions[] = 'node__' . $node->bundle() . '__' . $sanitized_view_mode;
  $suggestions[] = 'edlp_ajax__' . $vars['entity_type'] . '__' . $vars['entity']->id();
  $suggestions[] = 'edlp_ajax__' . $vars['entity_type'] . '__' . $vars['entity']->id() . '__' . $sanitized_view_mode;

  return $suggestions;
}