import { QueryService } from '@ptc-org/nestjs-query-core';
import { DTONamesOpts } from '../common';
import { QueryResolverMethodOpts, SubscriptionResolverMethodOpts } from '../decorators';
import { GraphQLPubSub } from '../subscription';
import { PagingStrategies, QueryArgsTypeOpts } from '../types';
export type NamedEndpoint = {
    /** Specify to override the name of the graphql query or mutation * */
    name?: string;
    /** Specify a description for the graphql query or mutation* */
    description?: string;
};
export interface ResolverOpts extends QueryResolverMethodOpts, DTONamesOpts {
    /**
     * Options for single record graphql endpoints
     */
    one?: QueryResolverMethodOpts & NamedEndpoint;
    /**
     * Options for multiple record graphql endpoints
     */
    many?: QueryResolverMethodOpts & NamedEndpoint;
}
export interface SubscriptionResolverOpts extends SubscriptionResolverMethodOpts, DTONamesOpts {
    one?: SubscriptionResolverMethodOpts & NamedEndpoint;
    many?: SubscriptionResolverMethodOpts & NamedEndpoint;
}
/** @internal */
export interface ServiceResolver<DTO, QS extends QueryService<DTO, unknown, unknown>> {
    service: QS;
    readonly pubSub?: GraphQLPubSub;
}
/** @internal */
export interface ResolverClass<DTO, QS extends QueryService<DTO, unknown, unknown>, Resolver extends ServiceResolver<DTO, QS>> {
    new (service: QS): Resolver;
}
/**
 * @internal
 * Base Resolver that takes in a service as a constructor argument.
 */
export declare class BaseServiceResolver<DTO, QS> {
    readonly service: QS;
    constructor(service: QS);
}
export type ExtractPagingStrategy<DTO, Opts extends QueryArgsTypeOpts<DTO>> = Opts['pagingStrategy'] extends PagingStrategies ? Opts['pagingStrategy'] : PagingStrategies.CURSOR;
export type MergePagingStrategyOpts<DTO, Opts extends QueryArgsTypeOpts<DTO>, S extends PagingStrategies> = Opts['pagingStrategy'] extends PagingStrategies ? Opts : S extends PagingStrategies ? Omit<Opts, 'pagingStrategy'> & {
    pagingStrategy: S;
} : Opts;