<?php

namespace UkrSolution\WpLabelsPrinting4\LabelDataMakers\Shortcodes\Woocommerce;

class VariationAllAttr extends ProductsShortcode
{
    const ORDER = 2100;
    const DOC_SECTION_NAME = 'For variations only:';
    const DOC_LINES = array(
        'Parent product ID:' => '[field=parent.ID]',
        'Parent product SKU:' => '[cf=parent._sku]',
        'Variation attributes:' => '[variation-all-attr separator=", "]',
    );

    public $display_name = "All Variation’s Attributes";

    public function getValue($post, $field)
    {
        $separator = isset($field['args']['separator']) ? $field['args']['separator'] : ', ';
        $showLabel = isset($field['args']['show-attr-name']) && 'true' === $field['args']['show-attr-name'];
        $product = wc_get_product($post->ID);

        if (empty($product)) {
            return '';
        }

        if (isset($post->orderItem)) {
            $allAttrsValues = array();
            foreach ($post->orderItem->get_all_formatted_meta_data('') as $metaData) {
                if (substr($metaData->key, 0, 1) !== '_') {
                    $attributeValue = $metaData->value;
                    if (0 === strpos($metaData->key, 'pa_')) {
                        $option_term = get_term_by('slug', $attributeValue, $metaData->key);
                        $attributeValue = $option_term && ! is_wp_error($option_term) ? str_replace(',', '\\,', $option_term->name) : str_replace(',', '\\,', $attributeValue);
                        $taxonomy = get_taxonomy($metaData->key);
                        $attributeLabel = !empty($taxonomy) ? $taxonomy->labels->singular_name : $metaData->key;
                    } else {
                        $attributeLabel = $metaData->key;
                    }
                    $allAttrsValues[] = ($showLabel ? $attributeLabel . ': ' : '') . $attributeValue;
                }
            }

            return implode($separator, array_filter($allAttrsValues));
        } elseif ('product_variation' === $post->post_type) {

            if (!method_exists($product, 'get_variation_attributes')) {
                return '';
            }

            $attrsInfo = $product->get_variation_attributes(false);
            array_walk($attrsInfo, function(&$attribute, $attribute_name) use ($showLabel) {
                if (0 === strpos($attribute_name, 'pa_')) {
                    $option_term = get_term_by('slug', $attribute, $attribute_name);
                    $attribute = $option_term && ! is_wp_error($option_term)
                        ? str_replace(',', '\\,', $option_term->name)
                        : str_replace(',', '\\,', $attribute);

                    $taxonomy = get_taxonomy($attribute_name);
                    $attributeLabel = !empty($taxonomy) ? $taxonomy->labels->singular_name : $attribute_name;
                } else {
                    $attributeLabel = $attribute_name;
                }

                if ($showLabel && !empty($attribute)) {
                    $attribute = $attributeLabel . ': ' . $attribute;
                }
            });

            return implode($separator, array_filter($attrsInfo));
        } else {
            return '';
        }
    }
}