manf_get_template.php

<?php
function wcik_add_page_template ($templates) {
    $templates['archive-manufacturer.php'] = 'Manufacturer';
    return $templates;
    }
add_filter ('theme_page_templates', 'wcik_add_page_template');


function wcik_archive_page_template ($template) {
   
  if (is_page_template('archive-manufacturer.php')){
        
      $template = plugin_dir_path( __FILE__ ) . 'templates/manufacturer/archive-manufacturer.php';
      } 
        
       
    return $template;
    }
add_filter ('page_template', 'wcik_archive_page_template');

function wcik_single_page_template($single_template) {
     global $post;

     if ($post->post_type == 'manufacturer') {
          $single_template = plugin_dir_path( __FILE__ ) . 'templates/manufacturer/single-manufacturer.php';
     }
     return $single_template;
}
add_filter( 'single_template', 'wcik_single_page_template' );


}