<?php
/******************************************************************************************
 * Copyright (C) Smackcoders. - All Rights Reserved under Smackcoders Proprietary License
 * Unauthorized copying of this file, via any medium is strictly prohibited
 * Proprietary and confidential
 * You can contact Smackcoders at email address info@smackcoders.com.
 *******************************************************************************************/

namespace Smackcoders\FCSV;

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

class ACFImport {
	private static $acf_instance = null;

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

	function set_acf_values($header_array ,$value_array , $map, $maps, $post_id , $type,$mode, $hash_key,$line_number){	
		$helpers_instance = ImportHelpers::getInstance();
		$helpers_instance = ImportHelpers::getInstance();
		$post_values =$helpers_instance->get_header_values($maps , $header_array , $value_array);
		foreach($map as $key => $value){
			$csv_value= trim($map[$key]);
			if(!empty($csv_value) || $csv_value == 0){
				//$pattern = "/({([a-z A-Z 0-9 | , _ -]+)(.*?)(}))/";
				$pattern = '/{([^}]*)}/';

				if(preg_match_all($pattern, $csv_value, $matches, PREG_PATTERN_ORDER)){	
					$csv_element = $csv_value;
					//foreach($matches[2] as $value){
					foreach($matches[1] as $value){
						$get_key = array_search($value , $header_array);
						if(isset($value_array[$get_key])){
							$csv_value_element = $value_array[$get_key];	
							$value = '{'.$value.'}';
							$csv_element = str_replace($value, $csv_value_element, $csv_element);
						}
					}

					$math = 'MATH';
					if (strpos($csv_element, $math) !== false) {

						$equation = str_replace('MATH', '', $csv_element);
						$csv_element = $helpers_instance->evalmath($equation);
					}
					$wp_element= trim($key);

					if((!empty($csv_element) || $csv_element == 0) && !empty($wp_element)){
						if(is_plugin_active('advanced-custom-fields/acf.php') || is_plugin_active('secure-custom-fields/secure-custom-fields.php')){
							$acf_pluginPath = WP_PLUGIN_DIR . '/advanced-custom-fields/pro';
							if(is_dir($acf_pluginPath)) {
								$this->acfpro_import_function($wp_element ,$post_values, $csv_element ,$type, $post_id,$mode, $hash_key,$line_number);
							}
							else{
								$this->acf_import_function($wp_element ,$post_values, $csv_element ,$type, $post_id,$mode, $hash_key,$line_number);
							}
						}
					}
				}

				elseif(!in_array($csv_value , $header_array)){
					$wp_element= trim($key);
					$this->acf_import_function($wp_element ,$post_values, $csv_value ,$type, $post_id,$mode, $hash_key,$line_number);
				}

				else{
					$get_key= array_search($csv_value , $header_array);
					if(isset($value_array[$get_key])){
						$csv_element = $value_array[$get_key];	

						$wp_element= trim($key);
						if($mode == 'Insert'){
							if((!empty($csv_element) || $csv_element == 0) && !empty($wp_element)){
								$this->acf_import_function($wp_element ,$post_values, $csv_element ,$type, $post_id,$mode, $hash_key,$line_number);
							}	
						}
						else{
							if(!empty($csv_element) || !empty($wp_element)){
								$this->acf_import_function($wp_element ,$post_values, $csv_element ,$type, $post_id,$mode, $hash_key,$line_number);
							}	

						}

					}
				}
			}
		} 
	}

	/**
	 * Imports ACF Free fields
	 * @param string $acf_wpname_element - acf fields
	 * @param string $acf_csv_element - csv headers
	 * @param string $importAs - selected import type
	 * @param string $post_id - inserted post id
	 */
	function acf_import_function($acf_wpname_element ,$post_values,$acf_csv_element, $importAs , $post_id,$mode, $hash_key,$line_number){

		$acf_wp_name = $acf_wpname_element;

		$acf_csv_name = $acf_csv_element; 
		global $wpdb;

		$helpers_instance = ImportHelpers::getInstance();
		$media_instance = MediaHandling::getInstance();

		$plugin = 'acf';
		$get_acf_fields = $wpdb->get_results($wpdb->prepare("select post_content, post_name from {$wpdb->prefix}posts where post_type = %s and post_excerpt = %s", 'acf-field', $acf_wp_name ), ARRAY_A);

		foreach($get_acf_fields as $keys => $value_type){
			$get_type_field = unserialize($value_type['post_content']);	

			$field_type = $get_type_field['type'];
			$key = $get_acf_fields[0]['post_name'];
			// $return_format = $get_type_field['return_format'];
			$return_format = isset($get_type_field['return_format']) ? $get_type_field['return_format'] : '';

			if($field_type == 'text' || $field_type == 'textarea' || $field_type == 'number' || $field_type == 'email' || $field_type == 'url' || $field_type == 'password' || $field_type == 'range' || $field_type == 'radio' || $field_type == 'true_false' || $field_type == 'time_picker' || $field_type == 'color_picker' || $field_type == 'button_group' || $field_type == 'oembed' || $field_type == 'wysiwyg'){
				$map_acf_wp_element = $acf_wp_name;
				$map_acf_csv_element = $acf_csv_name;	
			}
			if ($field_type == 'icon_picker') {
				$acf_csv_element = explode(',',$acf_csv_element);
				$icon_pic_type = !empty($acf_csv_element[0]) ? $acf_csv_element[0] : '';
				$map_acf_wp_element = $acf_wp_name;
				if($icon_pic_type == 'dashicons'){
					$dash_icon_value = !empty($acf_csv_element[1]) ? $acf_csv_element[1] : '';
				}
				else if($icon_pic_type == 'media_library'){
					$dash_media_value = !empty($acf_csv_element[1]) ? $acf_csv_element[1] : '';
					$dash_icon_value = $media_instance->image_meta_table_entry($line_number ,'', $post_id ,'', $dash_media_value, $hash_key,'media_library',$importAs,'','','', '','','','');
				}else if($icon_pic_type == 'url'){
					$dash_icon_value = !empty($acf_csv_element[1]) ? $acf_csv_element[1] : '';
				}
				if(!empty($dash_icon_value)){
					$serialized_value = array(
						'type'  => $icon_pic_type,
						'value' => esc_sql($dash_icon_value)
					);
					$map_acf_csv_element = $serialized_value; 
				}
			}
			if($field_type == 'date_time_picker'){

				$dt_var = trim($acf_csv_name);
				$dateformat = "Y-m-d H:i:s";
				$date_time_of = $helpers_instance->validate_datefield($dt_var,$acf_wp_name,$dateformat,$line_number);

				if($mode == 'Insert'){
					if($dt_var == 0 || $dt_var == '')
						$map_acf_csv_element = $dt_var;	
					else{
						$map_acf_csv_element = $date_time_of;
					}
				}
				else{
					if($dt_var == 0 || $dt_var == '')
						$map_acf_csv_element = $dt_var;	
					else{
						$map_acf_csv_element = $date_time_of;
					}
				}
				$map_acf_wp_element = $acf_wp_name;
			}
			if($field_type == 'user'){	
				$maps_acf_csv_name = $acf_csv_name;	
				$map_acf_wp_element = $acf_wp_name;
				$explo_acf_csv_name = explode(',',trim($acf_csv_name));		
				foreach($explo_acf_csv_name as $user){
					if(!is_numeric($explo_acf_csv_name)){
						$userid = $wpdb->get_col($wpdb->prepare("select ID from {$wpdb->prefix}users where user_login = %s",$user));			
						foreach($userid as $users){
							$map_acf_csv_element[] = $users;		
						}
					}
				}
				if(is_numeric($user)){
					$map_acf_csv_element = $user;
				}

				$bidirectional =$get_type_field ['bidirectional'] ;	
				if($bidirectional == 1){
					$bidirectional_target =$get_type_field ['bidirectional_target'] ;	

					foreach($bidirectional_target as $bidirectional) {
						$field_name = $wpdb->get_results("SELECT post_excerpt FROM {$wpdb->prefix}posts WHERE post_name = '$bidirectional' AND post_status = 'publish'", ARRAY_A);						
						$field_value = $field_name[0]['post_excerpt'];	
						$get_relation = $wpdb->get_results("SELECT meta_value FROM {$wpdb->prefix}usermeta WHERE meta_key = '$field_value' AND user_id = '$map_acf_csv_element'", ARRAY_A);
						$get_relation_field=$get_relation[0]['meta_value'];
						$update_id = unserialize($get_relation_field);
						$update_id[] = $post_id;
						update_user_meta($map_acf_csv_element, $field_value, $update_id);
						update_user_meta($map_acf_csv_element, '_' . $field_value, $bidirectional);
					}
				}
			}
			if($field_type == 'post_object'){
				if($get_type_field['multiple'] == 0){
					$maps_acf_csv_name = $acf_csv_name;
				}else{
					$explo_acf_csv_name = explode(',',trim($acf_csv_name));
					$maps_acf_csv_name = array();
					foreach($explo_acf_csv_name as $explo_csv_value){
						$maps_acf_csv_name[] = trim($explo_csv_value);
					}	
				}
				$map_acf_csv_elements = $maps_acf_csv_name;				

				if($get_type_field['multiple'] == 0){
					if (!is_numeric($map_acf_csv_elements ) ){
						$map_acf_csv_elements = $wpdb->_real_escape($map_acf_csv_elements);

						$id = $wpdb->get_results("SELECT ID FROM {$wpdb->prefix}posts WHERE post_title = '{$map_acf_csv_elements}' AND post_status = 'publish' order by ID DESC", ARRAY_A);
						$map_acf_csv_element = isset($id[0]['ID']) ? $id[0]['ID'] : '';
					}
					else{
						$map_acf_csv_element = $maps_acf_csv_name;	
					}
				}
				else{
					$map_acf_csv_element = array();
					foreach($map_acf_csv_elements as $csv_element){
						$csv_element = $wpdb->_real_escape($csv_element);						
						$id = $wpdb->get_results("SELECT ID FROM {$wpdb->prefix}posts WHERE post_title = '$csv_element' AND post_status = 'publish'", ARRAY_A);						
						$map_acf_csv_element[] = isset($id[0]['ID']) ? $id[0]['ID'] : '';
					}
				}			
				$bidirectional =$get_type_field ['bidirectional'] ;	
				if($bidirectional == 1){
					$bidirectional_target =$get_type_field ['bidirectional_target'] ;	

					foreach($bidirectional_target as $bidirectional) {
						$field_name = $wpdb->get_results("SELECT post_excerpt FROM {$wpdb->prefix}posts WHERE post_name = '$bidirectional' AND post_status = 'publish'", ARRAY_A);						
						$field_value = $field_name[0]['post_excerpt'];	

						foreach($map_acf_csv_element as $id){
							$get_relation = $wpdb->get_results("SELECT meta_value FROM {$wpdb->prefix}postmeta WHERE meta_key = '$field_value' AND post_id = '$id'", ARRAY_A);

							$get_object_field=$get_relation[0]['meta_value'];
							$update_id = unserialize($get_object_field);
							$update_id[] = $post_id;

							update_post_meta($id, $field_value, $update_id);
							update_post_meta($id, '_' . $field_value, $bidirectional);
						}
					}
				}	

				$map_acf_wp_element = $acf_wp_name;
			}
			if($field_type == 'relationship' || $field_type == 'taxonomy'){
				$relations = array();
				$check_is_valid_term = null;
				$get_relations = $acf_csv_name;
				if(!empty($get_relations)){
					$exploded_relations = explode(',', $get_relations);
					foreach ($exploded_relations as $relVal) {
						$relationTerm = trim($relVal);
						//$relTerm[] = $relationTerm;
						$tax_field_type = $get_type_field['field_type'];
						if ($field_type == 'taxonomy') {
							$taxonomy_name =  $get_type_field['taxonomy'];
							// $check_is_valid_term = $helpers_instance->get_requested_term_details($post_id, $relTerm, $taxonomy_name);
							$check_is_valid_term = $helpers_instance->get_requested_term_details($post_id, array($relationTerm), $taxonomy_name);
							//$relations[] = $check_is_valid_term;
							if(isset($tax_field_type) && ($tax_field_type == 'select' || $tax_field_type == 'radio')){
								$single_relations  = $check_is_valid_term;
							}
							else{
								$relations[]         = $check_is_valid_term;
							}
						} else {
							$reldata = strlen($relationTerm);
							$checkrelid = intval($relationTerm);
							$verifiedRelLen = strlen($checkrelid);
							if ($reldata == $verifiedRelLen) {
								$relations[] = $relationTerm;
							} else {
								$relVal = $wpdb->_real_escape($relVal);

								$relation_id = $wpdb->get_results("SELECT ID FROM {$wpdb->prefix}posts WHERE post_title = '$relVal' AND post_status = 'publish'", ARRAY_A);
								if (!empty($relation_id)) {
									$relations[] = $relation_id[0]['ID'];
								}
							}
						}
					}
				}

				$bidirectional =$get_type_field ['bidirectional'] ;	
				if($bidirectional == 1){
					$bidirectional_target =$get_type_field ['bidirectional_target'] ;	

					foreach($bidirectional_target as $bidirectional) {
						$field_name = $wpdb->get_results("SELECT post_excerpt FROM {$wpdb->prefix}posts WHERE post_name = '$bidirectional' AND post_status = 'publish'", ARRAY_A);						
						$field_value = $field_name[0]['post_excerpt'];

						foreach($relations as $relation_id) {
							if ($field_type == 'taxonomy') {
								$get_relation = $wpdb->get_results("SELECT meta_value FROM {$wpdb->prefix}postmeta WHERE meta_key = '$field_value' AND term_id = '$relation_id'", ARRAY_A);	
							}
							else{
								$get_relation = $wpdb->get_results("SELECT meta_value FROM {$wpdb->prefix}postmeta WHERE meta_key = '$field_value' AND post_id = '$relation_id'", ARRAY_A);	
							}
							$get_relation_field=$get_relation[0]['meta_value'];
							$update_id = unserialize($get_relation_field);
							$update_id[] = $post_id;
							if ($field_type == 'taxonomy') {
								if(isset($tax_field_type) && ($tax_field_type == 'select' || $tax_field_type == 'radio')){
									update_term_meta($relation_id, $field_value, $bidirectional_single);
								}
								else{
									update_term_meta($relation_id, $field_value, $update_id);
								}
								update_term_meta($relation_id, '_' . $field_value, $bidirectional);
							}
							else{
								if(isset($tax_field_type) && ($tax_field_type == 'select' || $tax_field_type == 'radio')){
									update_post_meta($relation_id, $field_value, $bidirectional_single);
								}
								else{
									update_post_meta($relation_id, $field_value, $update_id);
								}
								update_post_meta($relation_id, '_' . $field_value, $bidirectional);
							}
							if ($field_type == 'taxonomy') {
								update_term_meta($relation_id, $field_value, $update_id);
								update_term_meta($relation_id, '_' . $field_value, $bidirectional);
							}
							else{
								update_post_meta($relation_id, $field_value, $update_id);
								update_post_meta($relation_id, '_' . $field_value, $bidirectional);
							}
						}
					}
				}
				if(isset($tax_field_type) && ($tax_field_type == 'select' || $tax_field_type == 'radio')){
					$map_acf_csv_element = $single_relations;
				}
				else{
					$map_acf_csv_element = $relations;
				}
				//$map_acf_csv_element = $relations;
				$map_acf_wp_element = $acf_wp_name;
			}	
			if($field_type == 'date_picker'){

				$var = trim($acf_csv_name);
				$dateformat = 'Ymd';
				$date = str_replace('/', '-', "$var");
				$date_of = $helpers_instance->validate_datefield($var,$acf_wp_name,$dateformat,$line_number);				

				if($mode == 'Insert'){
					if($var == 0 || $var == '')
						$map_acf_csv_element = $var;	
					else{
						$map_acf_csv_element = $date_of;
					}
				}
				else{
					if($var == 0 || $var == '')
						$map_acf_csv_element = $var;	
					else{
						$map_acf_csv_element = $date_of;
					}
				}
				$map_acf_wp_element = $acf_wp_name;

			}
			if($field_type == 'select'){
				if($get_type_field['multiple'] == 0){
					$map_acf_csv_element = $acf_csv_name;
				}
				$map_acf_wp_element = $acf_wp_name;
			}

			if($field_type == 'checkbox'){

				$explode_acf_csv = explode(',',trim($acf_csv_name));
				$explode_acf_csv_name = [];
				foreach($explode_acf_csv as $explode_acf_csv_value){
					if(!empty($explode_acf_csv_value)){
						$explode_acf_csv_name[] = trim($explode_acf_csv_value);
					}

				}	

				$map_acf_csv_element = $explode_acf_csv_name;
				$map_acf_wp_element = $acf_wp_name;
			}
		}

		if ($importAs == 'Users') {
			update_user_meta($post_id, $map_acf_wp_element, $map_acf_csv_element);
			update_user_meta($post_id, '_' . $map_acf_wp_element, $key);
		} else {	
			update_post_meta($post_id, $map_acf_wp_element, $map_acf_csv_element);
			update_post_meta($post_id, '_' . $map_acf_wp_element, $key);
		}
		$listTaxonomy = get_taxonomies();
		if (in_array($importAs, $listTaxonomy)) {
			if($term_meta = 'yes'){

				update_term_meta($post_id, $map_acf_wp_element, $map_acf_csv_element);
				update_term_meta($post_id, '_' . $map_acf_wp_element, $key);
			}else{
				$option_name = $importAs . "_" . $post_id . "_" . $map_acf_wp_element;
				$option_value = $map_acf_csv_element;
				if (is_array($option_value)) {
					$option_value = serialize($option_value);
				}

				update_option("$option_name", "$option_value");
			}
		}
	}
}