Dokan Cart Update 2

function dokan_get_lot_discount_for_vendor( $vendor_id ) {

    $is_enable_op_discount       = dokan_get_option( 'discount_edit', 'dokan_selling' );
    $is_product_discount_enabled = isset( $is_enable_op_discount['product-discount'] ) && $is_enable_op_discount['product-discount'] == 'product-discount';
    $discount_total              = 0;

    if ( ! $is_product_discount_enabled ) {
        return $discount_total;
    }

    foreach ( WC()->cart->get_cart() as $item ) {

        $product_id       = $item['data']->get_id();
        $product          = wc_get_product( $product_id );
        $product_discount = $product->get_meta( '_is_lot_discount', true );
        $price_item = $product->get_meta('_price',true);
        if ( $product_discount !== 'yes' ) {
            continue;
        }

        $vendor = dokan_get_vendor_by_product( $product_id );

        if ( $vendor_id !== $vendor->get_id() ) {
            continue;
        }

        $line_total              = $item['line_total'];
        $item_quantity           = $item['quantity'];
        $lot_discount_percentage = (float) $product->get_meta( '_lot_discount_amount', true );
        $lot_discount_quantity   = absint( $product->get_meta( '_lot_discount_quantity', true ) );

        //edited code
        $lot_discount_percentage_two = (float) $product->get_meta( '_lot_discount_amount_two', true );
        $lot_discount_quantity_two   = absint( $product->get_meta( '_lot_discount_quantity_two', true ) );

        $lot_discount_percentage_three = (float) $product->get_meta( '_lot_discount_amount_three', true );
        $lot_discount_quantity_three   = absint( $product->get_meta( '_lot_discount_quantity_three', true ) );

        $discount_status = get_post_meta($product_id,'_discount_status',true);


        if($lot_discount_quantity != '0'){
            if ( $row_item_quantity >= $lot_discount_quantity) {

                if($lot_discount_quantity_two != '0'){
                    if($row_item_quantity < $lot_discount_quantity_two){

                        if($discount_status == 'percentage'){
                            $discount_total += ( $line_total * $lot_discount_percentage / 100 );
                        }

                    }else if($row_item_quantity >= $lot_discount_quantity_two){

                        if($lot_discount_quantity_three != '0'){

                            if($row_item_quantity < $lot_discount_quantity_three){

                                if($discount_status == 'percentage'){
                                    if($discount_status_two == 'percentage'){
                                        $discount_total += ( $line_total * $lot_discount_percentage_two / 100 );
                                    }
                                }

                            }else{

                                if($discount_status_three == 'percentage'){
                                    $discount_total += ( $line_total * $lot_discount_percentage_three / 100 );
                                }

                            }
                        }else{

                            if($discount_status_two == 'percentage'){
                                $discount_total += ( $line_total * $lot_discount_percentage_two / 100 );
                            }
                        }
                    }
                }else{
                    if($discount_status == 'percentage'){
                        $discount_total += ( $line_total * $lot_discount_percentage / 100 );
                    }
                }
            }
        }

        // if ( $item_quantity >= $lot_discount_quantity && $item_quantity < $lot_discount_quantity_two && $item_quantity < $lot_discount_quantity_three) {
        //     if($discount_status == 'percentage'){
        //         $discount_total += ( $line_total * $lot_discount_percentage / 100 );
        //     }
        // }else if($item_quantity > $lot_discount_quantity_two && $item_quantity >= $lot_discount_quantity_two && $item_quantity < $lot_discount_quantity_three ){
        //     if($discount_status_two == 'percentage'){
        //         $discount_total += ( $line_total * $lot_discount_percentage_two / 100 );
        //     }
        // }else if($item_quantity >= $lot_discount_quantity_three && $item_quantity > $lot_discount_quantity_two && $item_quantity > $lot_discount_quantity){

        //     if($discount_status_three == 'percentage'){
        //         $discount_total += ( $line_total * $lot_discount_percentage_three / 100 );
        //     }
        // }
    }

    return $discount_total;
}