import type { GraphQLSchema } from 'graphql';
import type { PromiseOrValue } from '@envelop/core';
import type { Logger } from '@graphql-hive/logger';
import type { createFetch } from '@whatwg-node/fetch';
import type { ServerAdapterInitialContext } from '@whatwg-node/server';
export type GraphQLSchemaWithContext<TContext> = GraphQLSchema & {
    _context?: TContext;
};
export interface GraphQLParams<TVariables = Record<string, any>, TExtensions = Record<string, any>> {
    operationName?: string;
    query?: string;
    variables?: TVariables;
    extensions?: TExtensions;
}
export type YogaConfigContext = {
    /**
     * The logger to use throughout Yoga and its plugins.
     *
     * Within a request, this is a request-scoped child logger carrying a `requestId` attribute,
     * so every log line produced while handling that request can be correlated together.
     */
    log: Logger;
};
export interface YogaInitialContext extends ServerAdapterInitialContext, YogaConfigContext {
    /**
     * GraphQL Parameters
     */
    params: GraphQLParams;
    /**
     * An object describing the HTTP request.
     */
    request: Request;
}
export type CORSOptions = {
    origin?: string[] | string;
    methods?: string[];
    allowedHeaders?: string[];
    exposedHeaders?: string[];
    credentials?: boolean;
    maxAge?: number;
} | false;
declare module 'graphql' {
    interface GraphQLHTTPErrorExtensions {
        spec?: boolean;
        status?: number;
        headers?: Record<string, string>;
    }
    interface GraphQLErrorExtensions {
        http?: GraphQLHTTPErrorExtensions;
    }
}
export type FetchAPI = ReturnType<typeof createFetch>;
export interface FetchEvent extends Event {
    request: Request;
    respondWith(response: PromiseOrValue<Response>): void;
}
export type YogaMaskedErrorOpts = {
    maskError: MaskError;
    errorMessage: string;
    isDev?: boolean;
};
export type MaskError = (error: unknown, message: string, isDev?: boolean, 
/**
 * The context of the request that caused the error, so a masked error (and any logging
 * around it) can be correlated with - and informed by - the request, e.g. its `log`ger,
 * headers or authenticated user. Passed by whichever caller has it: `handleError` (error.ts)
 * for the HTTP path, or envelop's `useMaskedErrors` itself for subscription/streaming errors
 * (it gets one from the context it's given at the point of the call). May be partial, or
 * unset entirely, for an error before a full context could be built.
 */
context?: Partial<YogaInitialContext> & YogaConfigContext) => Error;
export type MaybeArray<T> = T | T[];
export interface GraphQLHTTPExtensions {
    spec?: boolean;
    status?: number;
    headers?: Record<string, string>;
}