import { DocumentNode, ExecutionResult, GraphQLSchema } from 'graphql';
import type { Plugin } from 'graphql-yoga';
import { ExecutableOperationPlan } from '@graphql-mesh/fusion-execution';
import { Transport, TransportBaseContext, TransportEntry, TransportExecutorFactoryFn, TransportExecutorFactoryOpts } from '@graphql-mesh/transport-common';
import { ExecutionRequest, Executor, IResolvers } from '@graphql-tools/utils';
export { Transport, TransportEntry, TransportExecutorFactoryFn, TransportExecutorFactoryOpts };
export declare function getSubgraphTransportMapFromFusiongraph(fusiongraph: GraphQLSchema): Record<string, TransportEntry>;
export declare const getMemoizedExecutionPlanForOperation: (fusiongraph: GraphQLSchema, document: DocumentNode, operationName?: string, _random?: number) => ExecutableOperationPlan;
export type TransportsOption = {
    [TTransportKind in string]: Transport<TTransportKind>;
} | (<TTransportKind extends string>(transportKind: TTransportKind) => Promise<Transport<TTransportKind>> | Transport<TTransportKind>);
interface GetExecutorForFusiongraphOpts extends TransportBaseContext {
    fusiongraph: GraphQLSchema;
    transports?: TransportsOption;
    plugins?: FusiongraphPlugin[];
}
export declare function defaultTransportsOption(transportKind: string): Promise<any>;
export declare function createTransportGetter(transports: TransportsOption): <TTransportKind extends string>(transportKind: TTransportKind) => Transport<TTransportKind> | Promise<Transport<TTransportKind>>;
export declare function getTransportExecutor(transportGetter: ReturnType<typeof createTransportGetter>, transportContext: TransportExecutorFactoryOpts): Executor | Promise<Executor>;
export declare function getExecutorForFusiongraph({ fusiongraph, transports, plugins, ...transportBaseContext }: GetExecutorForFusiongraphOpts): {
    fusiongraphExecutor: (execReq: ExecutionRequest) => {
        data: any;
        errors: import("graphql").GraphQLError[];
        extensions: {
            executionPlan: {
                resolverOperationNodes: import("@graphql-mesh/fusion-execution").SerializedResolverOperationNode[];
                resolverDependencyFieldMap: {
                    [k: string]: import("@graphql-mesh/fusion-execution").SerializedResolverOperationNode[];
                };
            };
            outputVariables: {
                [k: string]: any;
            };
        };
    } | Promise<{
        data: any;
        errors: import("graphql").GraphQLError[];
        extensions: {
            executionPlan: {
                resolverOperationNodes: import("@graphql-mesh/fusion-execution").SerializedResolverOperationNode[];
                resolverDependencyFieldMap: {
                    [k: string]: import("@graphql-mesh/fusion-execution").SerializedResolverOperationNode[];
                };
            };
            outputVariables: {
                [k: string]: any;
            };
        };
    }> | AsyncIterableIterator<{
        data: any;
        errors: import("graphql").GraphQLError[];
        extensions: {
            executionPlan: {
                resolverOperationNodes: import("@graphql-mesh/fusion-execution").SerializedResolverOperationNode[];
                resolverDependencyFieldMap: {
                    [k: string]: import("@graphql-mesh/fusion-execution").SerializedResolverOperationNode[];
                };
            };
            outputVariables: {
                [k: string]: any;
            };
        };
    }> | {
        data: any;
    };
    transportEntryMap: Record<string, TransportEntry>;
    onSubgraphExecute: (subgraphName: string, document: DocumentNode, variables: any, context: any) => import("@graphql-tools/utils").MaybePromise<import("@graphql-tools/utils").MaybeAsyncIterable<import("@graphql-tools/utils").ExecutionResult<any, any>>>;
};
export interface PlanCache {
    get(documentStr: string): Promise<ExecutableOperationPlan> | ExecutableOperationPlan;
    set(documentStr: string, plan: ExecutableOperationPlan): Promise<any> | any;
}
export interface YogaFusiongraphPluginOptions<TServerContext, TUserContext> {
    getFusiongraph(baseCtx: TransportBaseContext): GraphQLSchema | DocumentNode | string | Promise<GraphQLSchema | string | DocumentNode>;
    transports?: TransportsOption;
    planCache?: PlanCache;
    polling?: number;
    additionalResolvers?: IResolvers<unknown, TServerContext & TUserContext> | IResolvers<unknown, TServerContext & TUserContext>[];
    transportBaseContext?: TransportBaseContext;
}
export declare function useFusiongraph<TServerContext, TUserContext>({ getFusiongraph, transports, additionalResolvers, polling, transportBaseContext, }: YogaFusiongraphPluginOptions<TServerContext, TUserContext>): Plugin<{}, TServerContext, TUserContext> & {
    invalidateUnifiedGraph(): void;
};
export interface FusiongraphPlugin {
    onSubgraphExecute?: OnSubgraphExecuteHook;
}
export type OnSubgraphExecuteHook = (payload: OnFusiongraphExecutePayload) => Promise<OnSubgraphExecuteDoneHook> | OnSubgraphExecuteDoneHook;
export interface OnFusiongraphExecutePayload {
    fusiongraph: GraphQLSchema;
    subgraphName: string;
    transportKind: string;
    transportLocation: string;
    transportHeaders: Record<string, string>;
    transportOptions: any;
    executionRequest: ExecutionRequest;
    executor: Executor;
    setExecutor(executor: Executor): void;
}
export interface OnSubgraphExecuteDonePayload {
    result: ExecutionResult;
    setResult(result: ExecutionResult): void;
}
export type OnSubgraphExecuteDoneHook = (payload: OnSubgraphExecuteDonePayload) => Promise<void> | void;