import { BaseService } from "medusa-interfaces";
import { LineItem } from "../models/line-item";
import { Region } from "../models/region";
import { Address } from "../models/address";
import { ShippingMethod } from "../models/shipping-method";
import { Customer } from "../models/customer";
import { ProviderTaxLine, TaxServiceRate } from "../types/tax-service";
import { LineAllocationsMap } from "../types/totals";
/**
 * A shipping method and the tax rates that have been configured to apply to the
 * shipping method.
 */
export declare type ShippingTaxCalculationLine = {
    shipping_method: ShippingMethod;
    rates: TaxServiceRate[];
};
/**
 * A line item and the tax rates that have been configured to apply to the
 * product contained in the line item.
 */
export declare type ItemTaxCalculationLine = {
    item: LineItem;
    rates: TaxServiceRate[];
};
/**
 * Information relevant to a tax calculation, such as the shipping address where
 * the items are going.
 */
export declare type TaxCalculationContext = {
    shipping_address: Address | null;
    customer: Customer;
    region: Region;
    is_return: boolean;
    shipping_methods: ShippingMethod[];
    allocation_map: LineAllocationsMap;
};
/**
 * Interface to be implemented by tax provider plugins. The interface defines a
 * single method `getTaxLines` that returns numerical rates to apply to line
 * items and shipping methods.
 */
export interface ITaxService {
    /**
     * Retrieves the numerical tax lines for a calculation context.
     * @param itemLines - the line item calculation lines
     * @param itemLines - the shipping calculation lines
     * @param context - other details relevant to the tax determination
     * @return numerical tax rates that should apply to the provided calculation
     *   lines
     */
    getTaxLines(itemLines: ItemTaxCalculationLine[], shippingLines: ShippingTaxCalculationLine[], context: TaxCalculationContext): Promise<ProviderTaxLine[]>;
}
export declare abstract class AbstractTaxService extends BaseService implements ITaxService {
    protected static identifier: string;
    getIdentifier(): string;
    abstract getTaxLines(itemLines: ItemTaxCalculationLine[], shippingLines: ShippingTaxCalculationLine[], context: TaxCalculationContext): Promise<ProviderTaxLine[]>;
}