<?php
/**
 * WP Ultimate CSV Importer plugin file.
 *
 * Copyright (C) 2010-2020, Smackcoders Inc - info@smackcoders.com
 */

namespace Smackcoders\FCSV;

if ( ! defined( 'ABSPATH' ) )
    exit; // Exit if accessed directly

class TermsAndTaxonomies extends ExtensionHandler{
	private static $instance = null;

    public static function getInstance() {
		
		if (TermsAndTaxonomies::$instance == null) {
			TermsAndTaxonomies::$instance = new TermsAndTaxonomies;
		}
		return TermsAndTaxonomies::$instance;
    }

	/**
	* Provides Terms and Taxonomies fields for specific post type
	* @param string $data - selected import type
	* @return array - mapping fields
	*/
    public function processExtension($data) {
        $response = [];
		$import_type = $data;
		$import_type = $this->import_type_as($import_type);
		
        $term_taxonomies = array();
		$importas = $this->import_post_types($import_type);	
		$taxonomies = get_object_taxonomies( $importas, 'names' );
		
		$search_array = array('post_format','product_type','product_visibility','product_shipping_class');
		foreach($search_array as $search_values){
			if(in_array($search_values , $taxonomies)){
				$search_format = array_search($search_values , $taxonomies);
				unset($taxonomies[$search_format]);
			}
		}
			
		if(function_exists('wc_get_attribute_taxonomies')){
			$get_pro_attr = wc_get_attribute_taxonomies();
			
            foreach($get_pro_attr as $value){	
                $attr_name = $value->attribute_name;
				$attribute = 'pa_'.$attr_name;	
                if(in_array($attribute , $taxonomies));
                {	
					$search_attr = array_search($attribute , $taxonomies);
					if($taxonomies[$search_attr] != 'category' && $taxonomies[$search_attr] != 'product_cat' ){
						unset($taxonomies[$search_attr]);
					}
				}	
            }
        }else{
            #TODO
		}
		
		if(!empty($taxonomies)) {
			
			foreach ($taxonomies as $key => $value) {
				$get_taxonomy_label = get_taxonomy($value);
				#$taxonomy_label = $get_taxonomy_label->labels->singular_name;
				$taxonomy_label = $get_taxonomy_label->name;
				if($value == 'wpsc_product_category' || $value == 'product_cat'){
					$value = 'product_category';
				}elseif($value == 'category'){
					$value = 'post_category';
				}
				$term_taxonomies['TERMS'][$key]['label'] = $taxonomy_label;
				$term_taxonomies['TERMS'][$key]['name'] = $value;
			}
		}
		
		$terms_value = $this->convert_fields_to_array($term_taxonomies);
		$response['terms_and_taxonomies'] =  $terms_value ;
		return $response;		
    }

	/**
	* Terms and Taxonomies extension supported import types
	* @param string $import_type - selected import type
	* @return boolean
	*/
    public function extensionSupportedImportType($import_type ){
		if($import_type == 'nav_menu_item'){
			return false;
		}

		$import_type = $this->import_name_as($import_type);
			if($import_type =='Posts' || $import_type =='Pages' || $import_type =='CustomPosts' || $import_type =='WooCommerce') {	
				return true;
			}
			else{
				return false;
			}	
	}
}