File includes/class-woocommerce-izettle-products.php | WooCommerce iZettle 1.x Code Reference

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<?php
/**
 * The class that handles all functionality related to products.
 *
 * @link       https://www.onlineforce.net
 * @since      1.0.0
 *
 * @package    Woocommerce_Izettle
 * @subpackage Woocommerce_Izettle/includes
 */

namespace Onlineforce\Woocommerce_Izettle;

use Onlineforce\Izettle_Bindings\Izettle_Product;
use Onlineforce\Izettle_Bindings\Izettle_Product_Variant;
use \Onlineforce\Izettle_Bindings\Izettle_Request;
use \Onlineforce\Woocommerce_Izettle\Woocommerce_Izettle_Inventory;
use \Onlineforce\Izettle_Bindings\UUID;
use \Onlineforce\Woocommerce_Izettle\Woocommerce_Izettle_Products_Queue;
use \Onlineforce\Woocommerce_Izettle\Woocommerce_Izettle_Images;

/**
 * The class that handles all functionality related to products.
 *
 * @since      1.0.0
 * @package    Woocommerce_Izettle
 * @subpackage Woocommerce_Izettle/includes
 * @author     Onlineforce Sweden AB <support@onlineforce.net>
 */
class Woocommerce_Izettle_Products {

    private static function set_mapping( $wc_product_id, $product_uuid, $variant_uuid ) {
        global $wpdb;

        $wpdb->replace(
            "{$wpdb->prefix}woocommerce_izettle_products",
            array(
                'product_uuid' => $product_uuid,
                'variant_uuid' => $variant_uuid,
                'woocommerce_id' => $wc_product_id,
            ),
            array(
                '%s',
                '%s',
                '%d',
            )
        ); // DB call ok; no-cache ok.
    }

    public static function get_mapping( $wc_product_id ) {
        global $wpdb;
        $uuids = $wpdb->get_results(
            $wpdb->prepare(
                "   SELECT product_uuid, variant_uuid
                FROM {$wpdb->prefix}woocommerce_izettle_products
                WHERE woocommerce_id = %d
            ",
                (int) $wc_product_id
            )
        ); // DB call ok; no-cache ok.

        if ( empty( $uuids ) ) {
            return false;
        }

        return $uuids[0];
    }

    private static function get_product_uuid( $wc_product_id ) {
        $mapping = self::get_mapping( $wc_product_id );

        if ( $mapping ) {
            return $mapping->product_uuid;
        }

        return false;
    }

    private static function get_variant_uuid( $wc_product_id ) {
        $mapping = self::get_mapping( $wc_product_id );

        if ( $mapping ) {
            return $mapping->variant_uuid;
        }

        return false;
    }

    public static function generate_barcode( $wc_product_id ) {
        if ( get_post_meta( $wc_product_id, '_woocommerce_izettle_ean', true ) ) {
            return false;
        }

        $generator = new \Picqer\Barcode\BarcodeGeneratorIzettle();
        $new_barcode = 00 . 0000000 . hexdec( substr( md5( $wc_product_id ), 0, 7 ) );
        $new_barcode = $generator->getCode( $new_barcode, $generator::TYPE_EAN_13 );
        update_post_meta( $wc_product_id, '_woocommerce_izettle_ean', $new_barcode );
    }

    private static function get_barcode( $wc_product_id ) {
        return get_post_meta( $wc_product_id, '_woocommerce_izettle_ean', true );
    }

    public static function get_barcode_html( $wc_product_id ) {
        $generator = new \Picqer\Barcode\BarcodeGeneratorIzettle();
        $barcode = $generator->getBarcode(
            self::get_barcode( $wc_product_id ),
            $generator::TYPE_EAN_13
        );
        return $barcode;
    }

    public static function is_synced( $wc_product_id ) {
        global $wpdb;

        $wc_product = wc_get_product( $wc_product_id );

        if ( ! $wc_product ) {
            return false;
        }

        // If product is variable, product is synced if all variants are synced.
        if ( 'variable' === $wc_product->get_type() ) {
            $variants_synced = true;
            foreach ( $wc_product->get_children() as $wc_variant_id ) {
                if ( ! self::is_synced( $wc_variant_id ) ) {
                    $variants_synced = false;
                }
            }
            return $variants_synced;
        }

        return ! empty(
            $wpdb->get_var(
                $wpdb->prepare(
                    "   SELECT variant_uuid
                FROM {$wpdb->prefix}woocommerce_izettle_products
                WHERE woocommerce_id = %d
            ",
                    (int) $wc_product_id
                )
            )
        ) ? true : false;
    }

    public static function get_product_from_uuids( $product_uuid, $variant_uuid ) {
        global $wpdb;
        return $wpdb->get_var(
            $wpdb->prepare(
                "   SELECT woocommerce_id
                FROM {$wpdb->prefix}woocommerce_izettle_products
                WHERE product_uuid = %s
                AND variant_uuid = %s
            ",
                array( $product_uuid, $variant_uuid )
            )
        );
    }

    /**
     * Generate product_uuid and variant_uuid(s) for WC product.
     * If the product already has uuid's, do nothing and return false.
     *
     * @param      <type> $wc_product_id  The wc product identifier.
     */
    private static function generate_uuids() {
        $tmp_product_uuid = UUID::generate(
            UUID::UUID_TIME, UUID::FMT_STRING, rand()
        );

        $tmp_variant_uuid = UUID::generate(
            UUID::UUID_TIME, UUID::FMT_STRING, rand()
        );

        $uuids = new \stdClass();
        $uuids->product_uuid = $tmp_product_uuid;
        $uuids->variant_uuid = $tmp_variant_uuid;

        return $uuids;
    }

    /**
     * Create or update product in iZettle.
     *
     * @param      int|string $wc_product_id   WooCommerce product ID.
     */
    public static function sync_product( $wc_product_id ) {
        $already_synced = self::is_synced( $wc_product_id );

        if ( $already_synced ) {
            $result = self::update_product( $wc_product_id );
        } else {
            $result = self::create_product( $wc_product_id );
        }

        // Update inventory.
        if ( wc_get_product( $wc_product_id )->get_manage_stock() ) {
            foreach ( $result->get_variants() as $variant ) {
                $wc_id = self::get_product_from_uuids(
                    $result->get_uuid(),
                    $variant->get_uuid()
                );

                Woocommerce_Izettle_Inventory::update_inventory_in_izettle(
                    $wc_id,
                    wc_get_product( $wc_id )->get_stock_quantity()
                );
            }
        }

        return $result;
    }

    public static function sync_all_products() {
        $wc_query = new \WP_Query(
            array(
                'posts_per_page' => -1,
                'post_type' => 'product',
                'post_status' => 'publish',
            )
        );

        if ( ! $wc_query->have_posts() ) {
            throw new \Exception(
                'Failed to bulk sync products to iZettle: No Woo products found.'
            );
        }

        $results = array();

        // $queue = new Woocommerce_Izettle_Products_Queue();
        foreach ( $wc_query->posts as $post ) {
            // $queue->push_to_queue( $post->ID );
            $results[] = self::sync_product( $post->ID );
        }

        return $results;

        // $queue->save()->dispatch();
    }

    public static function create_product( $wc_product_id ) {
        $wc_product = wc_get_product( $wc_product_id );

        if ( ! $wc_product ) {
            throw new \Exception( "Could not find any WooCommerce product with ID {$wc_product_id}" );
        }

        $product_uuid = self::generate_uuids()->product_uuid;

        update_post_meta(
            $wc_product_id,
            '_woocommerce_izettle_product_uuid',
            $product_uuid
        );

        $izettle_product = new Izettle_Product(
            $wc_product,
            $product_uuid
        );

        // Add variants.
        $is_variable = 'variable' === $wc_product->get_type();
        if ( $is_variable ) {
            foreach ( $wc_product->get_children() as $wc_variant_id ) {
                $wc_variant = wc_get_product( $wc_variant_id );
                $izettle_variant = new Izettle_Product_Variant(
                    $wc_variant,
                    self::generate_uuids()->variant_uuid,
                    $izettle_product
                );
                $izettle_product->add_variant( $izettle_variant );
                self::set_mapping(
                    $wc_variant_id,
                    $product_uuid,
                    $izettle_variant->get_uuid()
                );
            }
        } // If this is not a WC variable product, the "variant" is the wc_product.
        else {
            $izettle_variant = new \Onlineforce\Izettle_Bindings\Izettle_Product_Variant(
                $wc_product,
                self::generate_uuids()->variant_uuid,
                $izettle_product
            );
            $izettle_product->add_variant( $izettle_variant );
            self::set_mapping( $wc_product_id, $product_uuid, $izettle_variant->get_uuid() );
        }

        $response = Izettle_Request::request(
            'POST',
            'https://products.izettle.com',
            '/organizations/self/products',
            $izettle_product
        );

        // Check if product already exists in iZettle, if so, update instead.
        if ( isset( $response->body->developerMessage )
             && -1 !== strpos( 'already exists', $response->body->developerMessage ) ) {
            return self::update_product( $wc_product_id );
        }

        if ( '201' === $response->headers['Status-Code'] ) {
            return $izettle_product;
        } else {
            throw new \Exception(
                "Failed to create product in iZettle: {$response->headers['Status']}"
            );
        }
    }

    public static function update_product( $wc_product_id ) {
        $wc_product = wc_get_product( $wc_product_id );

        if ( ! $wc_product ) {
            throw new \Exception( "Could not find any WooCommerce product with ID {$wc_product_id}" );
        }

        /*
        if ( 'variable' === $wc_product->get_type() ) {
            foreach ( $wc_product->get_children() as $wc_variant_id ) {
                self::update_product( $wc_variant_id );
            }
            return;
        }*/

        if ( 'variation' === $wc_product->get_type() ) {
            $uuids = self::get_mapping( $wc_product->get_parent_id() );

            $product_uuid = get_post_meta(
                $wc_product->get_parent_id(),
                '_woocommerce_izettle_product_uuid',
                true
            );
        } else {
            $uuids = self::get_mapping( $wc_product_id );
            $product_uuid = get_post_meta(
                $wc_product_id,
                '_woocommerce_izettle_product_uuid',
                true
            );
        }

        $izettle_product = new Izettle_Product(
            $wc_product,
            $product_uuid
        );

        // Add variants.
        $is_variable = 'variable' === $wc_product->get_type();
        if ( $is_variable ) {
            foreach ( $wc_product->get_children() as $wc_variant_id ) {
                $wc_variant = wc_get_product( $wc_variant_id );
                $izettle_variant = new Izettle_Product_Variant(
                    $wc_variant,
                    self::get_variant_uuid( $wc_variant_id ),
                    $izettle_product
                );
                $izettle_product->add_variant( $izettle_variant );
            }
        } // If this is not a WC variable product, the "variant" is the wc_product.
        else {
            $izettle_variant = new Izettle_Product_Variant(
                $wc_product,
                $uuids->variant_uuid,
                $izettle_product
            );
            $izettle_product->add_variant( $izettle_variant );
        }

        $response = Izettle_Request::request(
            'PUT',
            'https://products.izettle.com',
            "/organizations/self/products/{$product_uuid}",
            $izettle_product
        );

        foreach ( $izettle_product->get_variants() as $variant ) {
            Izettle_Request::request(
                'PUT',
                'https://products.izettle.com',
                "/organizations/self/products/{$product_uuid}/variants/{$variant->get_uuid()}",
                $variant
            );
        }

        if ( '404' === $response->headers['Status-Code'] ) {
            Izettle_Request::request(
                'POST',
                'https://products.izettle.com',
                '/organizations/self/products',
                $izettle_product
            );

            return $izettle_product;
        }

        if ( '204' === $response->headers['Status-Code'] ) {
            return $izettle_product;
        } else {
            throw new \Exception(
                "Failed to update product in iZettle: {$response->headers['Status']}"
            );
        }
    }
}

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