import { GraphQLFieldResolver, GraphQLSchema } from 'graphql';
import protobufjs, { AnyNestedObject, IParseOptions } from 'protobufjs';
import { GetMeshSourcePayload, Logger, MeshHandler, MeshHandlerOptions, YamlConfig } from '@graphql-mesh/types';
import { ChannelCredentials, loadPackageDefinition } from '@grpc/grpc-js';
import { ServiceClient } from '@grpc/grpc-js/build/src/make-client.js';
import './patchLongJs.js';
interface LoadOptions extends IParseOptions {
    includeDirs?: string[];
}
export default class GrpcHandler implements MeshHandler {
    private config;
    private baseDir;
    private schemaWithAnnotationsProxy;
    private logger;
    private pubsub;
    private fetchFn;
    private importFn;
    constructor({ config, baseDir, store, logger, pubsub, importFn, }: MeshHandlerOptions<YamlConfig.GrpcHandler>);
    processReflection(creds: ChannelCredentials): Promise<Promise<protobufjs.Root>[]>;
    processDescriptorFile(): Promise<protobufjs.Root>;
    processProtoFile(): Promise<protobufjs.Root>;
    getDescriptorSets(creds: ChannelCredentials): Promise<{
        name: string;
        rootJson: protobufjs.INamespace;
    }[]>;
    getCredentials(): Promise<ChannelCredentials>;
    walkToFindTypePath(rootJson: protobufjs.INamespace, pathWithName: string[], baseTypePath: string[]): string[];
    getGrpcObject({ rootJson, loadOptions, rootLogger, }: {
        rootJson: protobufjs.INamespace;
        loadOptions: LoadOptions;
        rootLogger: Logger;
    }): import("@grpc/grpc-js").GrpcObject;
    private grpcObjectByserviceClientByObjPath;
    getServiceClient({ grpcObject, objPath, creds, }: {
        grpcObject: ReturnType<typeof loadPackageDefinition>;
        objPath: string;
        creds: ChannelCredentials;
    }): ServiceClient;
    getFieldResolver({ client, methodName, isResponseStream, }: {
        client: ServiceClient;
        methodName: string;
        isResponseStream: boolean;
    }): GraphQLFieldResolver<any, any>;
    getConnectivityStateResolver({ client, }: {
        client: ServiceClient;
    }): GraphQLFieldResolver<any, any>;
    processDirectives({ schema, creds }: {
        schema: GraphQLSchema;
        creds: ChannelCredentials;
    }): void;
    visit({ nested, name, currentPath, rootJsonName, rootJson, rootLogger: logger, loadOptions, }: {
        nested: AnyNestedObject;
        name: string;
        currentPath: string[];
        rootJsonName: string;
        rootJson: protobufjs.INamespace;
        rootLogger: Logger;
        loadOptions?: LoadOptions;
    }): void;
    private schemaComposer;
    private getCachedNonExecutableSchema;
    getMeshSource({ fetchFn }: GetMeshSourcePayload): Promise<{
        schema: GraphQLSchema;
    }>;
}
export {};