public function get_item_commission($product_id, $variation_id, $item, $order_id, $item_id = '') {
    global $WCMp;
    $order = wc_get_order($order_id);
    $amount = 0;
    $commission = array();
    $commission_rule = array();
    $product_value_total = 0;
    // Check order coupon created by vendor or not
    $order_counpon_author_is_vendor = false;
    if ($order->get_coupon_codes()) {
        foreach( $order->get_coupon_codes() as $coupon_code ) {
            $coupon = new WC_Coupon($coupon_code);
            $order_counpon_author_is_vendor = $coupon && is_user_wcmp_vendor( get_post_field ( 'post_author', $coupon->get_id() ) ) ? true : false;
        }
    }

    $line_discount = 0;
    if (isset($WCMp->vendor_caps->payment_cap['commission_include_coupon'])) {
        //$line_total = $order->get_item_total($item, false, false) * $item['qty'];
        $line_total = $order->get_item_subtotal($item, false, false) * $item['qty'];
        $line_discount = ($order->get_item_subtotal($item, false, false) - $order->get_item_total($item, false, false)) * $item['qty'];

        /*if (isset($WCMp->vendor_caps->payment_cap['admin_coupon_excluded']) && !$order_counpon_author_is_vendor) {
            $line_total = $order->get_item_subtotal($item, false, false) * $item['qty'];
        }*/
    } else {
        $line_total = $order->get_item_subtotal($item, false, false) * $item['qty'];
    }

    // Filter the item total before calculating item commission.
    $line_total = apply_filters('wcmp_get_commission_line_total', $line_total, $product_id, $variation_id, $item, $order_id, $item_id);

    if ($product_id) {
        $vendor_id = wc_get_order_item_meta($item_id, '_vendor_id', true);
        if ($vendor_id) {
            $vendor = get_wcmp_vendor($vendor_id);
        } else {
            $vendor = get_wcmp_product_vendors($product_id);
        }
        if ($vendor) {
            $commission = $this->get_commission_amount($product_id, $vendor->term_id, $variation_id, $item_id, $order);
            $commission = apply_filters('wcmp_get_commission_amount', $commission, $product_id, $vendor->term_id, $variation_id, $item_id, $order);
            if (!empty($commission)) {
                if ($WCMp->vendor_caps->payment_cap['commission_type'] == 'fixed_with_percentage') {
                    $amount = (float) $line_total * ( (float) $commission['commission_val'] / 100 ) + (float) $commission['commission_fixed'];
                } else if ($WCMp->vendor_caps->payment_cap['commission_type'] == 'fixed_with_percentage_qty') {
                    $amount = (float) $line_total * ( (float) $commission['commission_val'] / 100 ) + ((float) $commission['commission_fixed'] * $item['qty']);
                } else if ($WCMp->vendor_caps->payment_cap['commission_type'] == 'percent') {
                    $amount = (float) $line_total * ( (float) $commission['commission_val'] / 100 );
                } else if ($WCMp->vendor_caps->payment_cap['commission_type'] == 'fixed') {
                    $amount = (float) $commission['commission_val'] * $item['qty'];
                } elseif ($WCMp->vendor_caps->payment_cap['commission_type'] == 'commission_by_product_price') {
                    $amount = $this->wcmp_get_commission_as_per_product_price($product_id, $line_total, $item['qty'], $commission_rule);
                } elseif ($WCMp->vendor_caps->payment_cap['commission_type'] == 'commission_by_purchase_quantity') {
                    $amount = $this->wcmp_get_commission_rule_by_quantity_rule($product_id, $line_total, $item['qty'], $commission_rule);
                }
                if (isset($WCMp->vendor_caps->payment_cap['revenue_sharing_mode'])) {
                    if ($WCMp->vendor_caps->payment_cap['revenue_sharing_mode'] == 'admin') {
                        $amount = (float) $line_total - (float) $amount - (float) $line_discount;
                        if ($amount < 0) {
                            $amount = 0;
                        }
                    }
                }
                if ($variation_id == 0 || $variation_id == '') {
                    $product_id_for_value = $product_id;
                } else {
                    $product_id_for_value = $variation_id;
                }

                $product_value_total += $item->get_total();
                if ( apply_filters('wcmp_admin_pay_commission_more_than_order_amount', true) && $amount > $product_value_total) {
                    $amount = $product_value_total;
                }
                return apply_filters('vendor_commission_amount', $amount, $product_id, $variation_id, $item, $order_id, $item_id);
            }
        }
    }
    return apply_filters('vendor_commission_amount', $amount, $product_id, $variation_id, $item, $order_id, $item_id);
}