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name : RefundHandler.php
<?php

namespace WeDevs\Dokan\Order;

use WeDevs\Dokan\Analytics\Reports\OrderType;
use WeDevs\Dokan\Commission\OrderCommission;
use WeDevs\Dokan\Contracts\Hookable;
use WeDevs\Dokan\Cache;

class RefundHandler implements Hookable {
    /**
     * Register necessary WordPress hooks.
     *
     * @return void
     */
    public function register_hooks(): void {
        // @todo Enable the bellow action after refactoring the Pro Refund class.
        add_action( 'woocommerce_order_refunded', [ $this, 'handle_refund' ], 10, 2 );
        add_filter( 'dokan_refund_should_insert_into_vendor_balance', [ $this, 'exclude_cod_payment' ], 10, 3 );
        add_filter( 'dokan_vendor_earning_in_refund', [ $this, 'get_vendor_earning_in_refund' ], 10, 2 );
        add_action( 'dokan_refund_adjust_vendor_balance', [ $this, 'insert_into_balance_table' ], 10, 3 );
//        add_action( 'dokan_refund_adjust_dokan_orders', [ $this, 'update_order_amounts' ], 10, 3 );
        add_action( 'dokan_refund_after_dokan_orders_updated', [ $this, 'clear_order_caches' ], 10, 3 );
    }

    /**
     * Handle refund logic for Dokan orders.
     *
     * @since 4.0.0
     *
     * @param int $order_id  The ID of the original order.
     * @param int $refund_id The ID of the refund.
     *
     * @return void
     */
    public function handle_refund( int $order_id, int $refund_id ): void {
        // Refund will be handle by the pro if exists.
        if ( dokan()->is_pro_exists() ) {
            return;
        }

        $order_type_detector = new OrderType();
        $refund_order = wc_get_order( $refund_id );
        $order  = wc_get_order( $order_id );

        if ( $order_type_detector->get_type( $refund_order ) === OrderType::DOKAN_PARENT_ORDER_REFUND ) {
            return;
        }

        $vendor_refund = apply_filters( 'dokan_vendor_earning_in_refund', $refund_order, $order );

        do_action( 'dokan_refund_adjust_vendor_balance', $vendor_refund, $refund_order, $order );

        do_action( 'dokan_refund_adjust_dokan_orders', $vendor_refund, $refund_order, $order );
    }

    /**
     * Get the vendor earning amount in the refund.
     *
     * @param \WC_Order_Refund $refund_order
     * @param \WC_Order $order
     *
     * @return float
     */
    public function get_vendor_earning_in_refund( $refund_order, $order ): float {
        if ( $order->get_meta( 'has_sub_order' ) ) {
            return 0;
        }

		$commission = dokan_get_container()->get( OrderCommission::class );

        $commission->set_order( $order );
        $commission->calculate();

        $refund_commission = $commission->calculate_for_refund( $refund_order );
        $vendor_refund     = $refund_commission->get_vendor_net_earning();

        $vendor_refund += $this->get_tax_refund( $refund_order, $order );
        $vendor_refund += $this->get_shipping_refund( $refund_order, $order );

        return floatval( $vendor_refund );
    }

    /**
     * Check the COD payment settings.
     *
     * @param bool $ret
     * @param \WC_Order_Refund $refund_order
     * @param \WC_Order $order
     * @return bool
     */
    public function exclude_cod_payment( $ret, $refund_order, $order ) {
        // return if $order is not an instance of WC_Order
        if ( ! $order ) {
            return $ret;
        }

        // if cod is not payment method return
        if ( 'cod' !== $order->get_payment_method() ) {
            return $ret;
        }

        /**
         * If `exclude_cod_payment` is enabled, don't include the fund in vendor's refund balance.
         */
        $exclude_cod_payment = 'on' === dokan_get_option( 'exclude_cod_payment', 'dokan_withdraw', 'off' );

        if ( $exclude_cod_payment ) {
            return false;
        }

        return $ret;
    }

    /**
     * Get the refunded tax amount for the vendor.
     *
     * @since 4.0.0
     *
     * @param \WC_Order_Refund $refund_order The refund object.
     * @param \WC_Order        $order  The original order object.
     *
     * @return float
     */
    protected function get_tax_refund( \WC_Order_Refund $refund_order, \WC_Order $order ): float {
        $tax_refund          = 0;
        $shipping_tax_refund = 0;

        foreach ( $refund_order->get_items( 'tax' ) as $tax_item ) {
            $tax_data = $tax_item->get_data();
            $tax_refund += floatval( $tax_data['tax_total'] );
            $shipping_tax_refund += floatval( $tax_data['shipping_tax_total'] );
        }

        $vendor_tax_refund = 0;

        if ( 'seller' === dokan()->fees->get_tax_fee_recipient( $order ) ) {
            $vendor_tax_refund += $tax_refund;
        }

        if ( 'seller' === dokan()->fees->get_shipping_tax_fee_recipient( $order ) ) {
            $vendor_tax_refund += $shipping_tax_refund;
        }

        return abs( $vendor_tax_refund );
    }

    /**
     * Get the refunded shipping amount for the vendor.
     *
     * @since 4.0.0
     *
     * @param \WC_Order_Refund $refund_order The refund object.
     * @param \WC_Order        $order  The original order object.
     *
     * @return float
     */
    protected function get_shipping_refund( \WC_Order_Refund $refund_order, \WC_Order $order ): float {
        $shipping_refund = 0;

        if ( 'seller' !== dokan()->fees->get_shipping_fee_recipient( $order->get_id() ) ) {
            return 0;
        }

        foreach ( $refund_order->get_items( 'shipping' ) as $item ) {
            $shipping_refund += $item->get_total();
        }

        return abs( $shipping_refund );
    }

    /**
     * Insert a refund record into the Dokan vendor balance table.
     *
     * @since 4.0.0
     *
     * @param float       $vendor_refund The amount to refund the vendor.
     * @param \WC_Order_Refund   $order         The original order object.
     * @param \WC_Order   $order         The original order object.
     *
     * @return void
     */
    public function insert_into_balance_table( $vendor_refund_amount, $refund_order, $order ) {
        global $wpdb;

        $seller_id = dokan_get_seller_id_by_order( $order );

        if ( ! $seller_id ) {
            dokan_log(
                sprintf(
                    // translators: 1: Order ID, 2: Refund ID, 3: Refund Amount
                    __( 'Dokan refund adjustment error: Seller not found, Order ID: %1$d, Refund ID: %2$d, Refund Amount: %3$f ', 'dokan-lite' ),
                    $order->get_id(),
                    $refund_order->get_id, $vendor_refund_amount
                )
            );

            return;
        }

        $vendor_refund_amount = apply_filters( 'dokan_vendor_refund_amount_before_insert', $vendor_refund_amount, $order, $refund_order );

        if ( ! apply_filters( 'dokan_refund_should_insert_into_vendor_balance', $vendor_refund_amount > 0, $refund_order, $order ) ) {
			return;
        }

        $refund_reason = $refund_order->get_reason();

        if ( $refund_reason ) {
            $refund_reason = __( 'Refunded by Dokan', 'dokan-lite' );
        }

        $wpdb->insert(
            $wpdb->dokan_vendor_balance,
            [
                'vendor_id'     => $seller_id,
                'trn_id'        => $order->get_id(),
                'trn_type'      => 'dokan_refund',
                'perticulars'   => $refund_reason,
                'debit'         => 0,
                'credit'        => $vendor_refund_amount,
                'status'        => 'approved',
                'trn_date'      => current_time( 'mysql' ),
                'balance_date'  => current_time( 'mysql' ),
            ],
            [ '%d', '%d', '%s', '%s', '%f', '%f', '%s', '%s', '%s' ]
        );
    }

    /**
	 * Update order table with new refund amount
	 *
     * @param float $vendor_refund
	 * @param \WC_Order_Refund $refund_order
	 * @param \WC_Order $order
	 */
	public function update_order_amounts( $vendor_refund, $refund_order, $order ) {
		global $wpdb;

		$order_data = $wpdb->get_row(
            $wpdb->prepare(
                "SELECT * FROM $wpdb->dokan_orders WHERE order_id = %d",
                $order->get_id()
            )
		);

		if ( isset( $order_data->order_total, $order_data->net_amount ) ) {
			$new_total_amount = $order_data->order_total - abs( $refund_order->get_total() );
			$new_net_amount = $order_data->net_amount - $vendor_refund;

			// Prevent negative net amount
			$new_net_amount = ( $new_net_amount < 0 ) ? 0.00 : $new_net_amount;

			$wpdb->update(
                $wpdb->dokan_orders,
                [
					'order_total' => $new_total_amount,
					'net_amount' => $new_net_amount,
                ],
                [
					'order_id' => $order->get_id(),
                ],
                [
					'%f',
					'%f',
                ],
                [
					'%d',
                ]
			);
		}

        do_action( 'dokan_refund_after_dokan_orders_updated', $vendor_refund, $refund_order, $order );
	}

	/**
	 * Clear order related caches
	 *
	 * @param float $vendor_refund
     * @param \WC_Order_Refund $refund_order
     * @param \WC_Order $order
	 */
	public function clear_order_caches( $vendor_refund, $refund_order, $order ) {
        $order_id = $order->get_id();
		// Clear seller earning cache
		$cache_key = "get_earning_from_order_table_{$order_id}_seller";
		Cache::delete( $cache_key );

		// Clear admin earning cache
		$cache_key = "get_earning_from_order_table_{$order_id}_admin";
		Cache::delete( $cache_key );
	}
}
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