File "FBCategories.php"
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Charset: utf-8
<?php
// phpcs:ignoreFile
/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved
*
* This source code is licensed under the license found in the
* LICENSE file in the root directory of this source tree.
*
* @package FacebookCommerce
*/
namespace WooCommerce\Facebook\Products;
defined( 'ABSPATH' ) || exit;
/**
* The main product feed handler.
*
* This will eventually replace \WC_Facebook_Product_Feed as we refactor and move its functionality here.
*
* @since 1.11.0
*/
class FBCategories {
/**
* Fetches the attribute from a category using attribute key.
*
* @param string $category_id Id of the category for which attribute we want to fetch.
* @param string $target_attribute_key The key of the attribute.
*
* @return null|array Attribute.
*/
private function get_attribute( $category_id, $target_attribute_key ) {
$attributes = $this->get_attributes( $category_id );
if ( ! is_array( $attributes ) ) {
return null;
}
foreach ( $attributes as $attribute ) {
if ( $target_attribute_key === $attribute['key'] ) {
return $attribute;
}
}
return null;
}
/**
* Checks if $value is correct for a given category attribute.
*
* @param string $category_id Id of the category for which attribute we want to check the value.
* @param string $attribute_key The key of the attribute.
* @param string $value Value of the attribute.
*
* @return boolean Is this a valid value for the attribute.
*/
public function is_valid_value_for_attribute( $category_id, $attribute_key, $value ) {
$attribute = $this->get_attribute( $category_id, $attribute_key );
if ( is_null( $attribute ) ) {
return false;
}
// TODO: can perform more validations here.
switch ( $attribute['type'] ) {
case 'enum':
return in_array( $value, $attribute['enum_values'] );
case 'boolean':
return in_array( $value, array( 'yes', 'no' ) );
default:
return true;
}
}
/**
* Fetches given category.
*
* @param string $category_id Id of the category we want to fetch.
*
* @return null|array Null if category was not found or the category array.
*/
public function get_category( $category_id ) {
if ( $this->is_category( $category_id ) ) {
return GoogleProductTaxonomy::TAXONOMY[ $category_id ];
} else {
return null;
}
}
/**
* Checks if category is root category - it has no parents.
*
* @param string $category_id Id of the category for which attribute we want to check the value.
*
* @return null|boolean Null if category was not found or boolean that determines if this is a root category or not.
*/
public function is_root_category( $category_id ) {
if ( ! $this->is_category( $category_id ) ) {
return null;
}
$category = $this->get_category( $category_id );
return empty( $category['parent'] );
}
/**
* Get the attributes data array for a specific category.
*
* @param string $category_id Id of the category for which we want to fetch attributes.
*
* @return null|array Null if no attributes were found or category is invalid, otherwise array of attributes.
*/
public function get_attributes( $category_id ) {
if ( ! $this->is_category( $category_id ) ) {
return null;
}
$all_attributes_data = $this->get_raw_attributes_data();
if ( ! isset( $all_attributes_data[ $category_id ] ) ) {
return null;
}
$category = $all_attributes_data[ $category_id ];
if ( ! isset( $category['attributes'] ) || ! is_array( $category['attributes'] ) ) {
return null;
}
$return_attributes = array();
foreach ( $category['attributes'] as $attribute_hash ) {
// Get attribute array from the stored hash version
$return_attributes[] = $this->get_attribute_field_by_hash( $attribute_hash );
}
return $return_attributes;
}
/**
* Get the attributes data array for a specific category but if they are not found fallback to the parent categories attributes.
*
* @param string $category_id Id of the category for which we want to fetch attributes.
*
* @return null|array Null if no attributes were found or category is invalid, otherwise array of attributes.
*/
public function get_attributes_with_fallback_to_parent_category( $category_id ) {
if ( ! $this->is_category( $category_id ) ) {
return null;
}
$attributes = $this->get_attributes( $category_id );
if ( $attributes ) {
return $attributes;
}
facebook_for_woocommerce()->log( sprintf( 'Google Product Category to Facebook attributes mapping for category with id: %s not found', $category_id ) );
// Category has no attributes entry - it should be added but for now check parent category.
if ( $this->is_root_category( $category_id ) ) {
return null;
}
$parent_category_id = GoogleProductTaxonomy::TAXONOMY[ $category_id ]['parent'];
$parent_category_attributes = $this->get_attributes( $parent_category_id );
if ( $parent_category_attributes ) {
return $parent_category_attributes;
}
// We could check further as we have 3 levels of product categories.
// This would meant that we have a big problem with mapping - let this fail and log the problem.
facebook_for_woocommerce()->log( sprintf( 'Google Product Category to Facebook attributes mapping for parent category with id: %s not found', $parent_category_id ) );
return null;
}
/**
* Checks if given category id is valid.
*
* @param string $category_id Id of the category which we check.
*
* @return boolean Is the id a valid category id.
*/
public function is_category( $category_id ) {
return isset( GoogleProductTaxonomy::TAXONOMY[ $category_id ] );
}
/**
* Get all categories.
*
* @return array All categories data.
*/
public function get_categories() {
return GoogleProductTaxonomy::TAXONOMY;
}
/**
* Get category attribute field by it's hash.
*
* @param string $hash
*
* @return array|null
*/
protected function get_attribute_field_by_hash( $hash ) {
$fields_data = $this->get_raw_attributes_fields_data();
if ( isset( $fields_data[ $hash ] ) ) {
return $fields_data[ $hash ];
} else {
return null;
}
}
/**
* Get the raw category attributes data from the JSON file.
*
* @return array
*/
protected function get_raw_attributes_data() {
static $data = null;
if ( null === $data ) {
$contents = file_get_contents( facebook_for_woocommerce()->get_plugin_path() . '/data/google_category_to_attribute_mapping.json' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
if ( $contents ) {
$data = json_decode( $contents, true );
} else {
$data = array();
facebook_for_woocommerce()->log( 'Error reading category attributes JSON data.' );
}
}
return $data;
}
/**
* Get the raw category attributes fields data from the JSON file.
*
* @retrun array
*/
protected function get_raw_attributes_fields_data() {
static $data = null;
if ( null === $data ) {
$contents = file_get_contents( facebook_for_woocommerce()->get_plugin_path() . '/data/google_category_to_attribute_mapping_fields.json' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
if ( $contents ) {
$data = json_decode( $contents, true );
} else {
$data = array();
facebook_for_woocommerce()->log( 'Error reading category attributes fields JSON data.' );
}
}
return $data;
}
}