<?php

/**
 * Description of ProductChange
 *
 * @author Ali2Woo Team
 */

namespace AliNext_Lite;;

class ProductChange
{
    private string $transient_key = 'a2wl_product_changes';

    /**
     * Save the product is not available. It overwites other changes for the product!
     */
    public function saveProductNotAvailable($product_id): void
    {
        if ($product_id) {
            $changes = $this->get_all();
            $changes[$product_id] = array(
                'not_available_product' => true,
                'is_price_changed' => false,
                'is_stock_changed' => false,
                'has_new_variants' => false
            );

            a2wl_set_transient($this->transient_key, $changes);
        }
    }

    /**
     * Save some product changes.
     * $data - array that describes the changes
     */
    public function save(
        $product_id,
        $is_price_changed,
        $is_stock_changed,
        $has_new_variants
    ): void {
        if ($product_id && ($is_price_changed || $is_stock_changed || $has_new_variants)) {
            $changes = $this->get_all();

            if (!is_array($changes)) {
                $changes = [];
            }

            if (!isset($changes[$product_id])) {
                $changes[$product_id] = array(
                    'not_available_product' => false
                );
            }

            $changes[$product_id]['is_price_changed'] = $is_price_changed;
            $changes[$product_id]['is_stock_changed'] = $is_stock_changed;
            $changes[$product_id]['has_new_variants'] = $has_new_variants;
            a2wl_set_transient($this->transient_key, $changes);
        }
    }

    public function get_all()
    {
        return a2wl_get_transient($this->transient_key);
    }

    public function clear_all(): void
    {
        a2wl_delete_transient($this->transient_key);
    }
}