import { IResolvers, IResolverValidationOptions } from '@graphql-tools/utils';
import { Type } from '@nestjs/common';
import { ModuleMetadata } from '@nestjs/common/interfaces';
import { GraphQLSchema } from 'graphql';
import { GraphQLDriver } from '.';
import { DefinitionsGeneratorOptions } from '../graphql-ast.explorer';
import { BuildSchemaOptions } from './build-schema-options.interface';
import { AutoSchemaFileValue } from './schema-file-config.interface';
export type Enhancer = 'guards' | 'interceptors' | 'filters';
/**
 * "GraphQLModule" options object.
 */
export interface GqlModuleOptions<TDriver extends GraphQLDriver = any> {
    /**
     * Path to mount GraphQL API
     */
    path?: string;
    /**
     * Type definitions
     */
    typeDefs?: string | string[];
    /**
     * Paths to files that contain GraphQL definitions
     */
    typePaths?: string[];
    /**
     * GraphQL server adapter
     */
    driver?: Type<TDriver>;
    /**
     * An array of modules to scan when searching for resolvers
     */
    include?: Function[];
    /**
     * Directive resolvers
     */
    directiveResolvers?: any;
    /**
     * Optional GraphQL schema (to be used or to be merged)
     */
    schema?: GraphQLSchema;
    /**
     * Extra resolvers to be registered.
     */
    resolvers?: IResolvers | Array<IResolvers>;
    /**
     * TypeScript definitions generator options
     */
    definitions?: {
        path?: string;
        outputAs?: 'class' | 'interface';
    } & DefinitionsGeneratorOptions;
    /**
     * If enabled, GraphQL schema will be generated automatically
     */
    autoSchemaFile?: AutoSchemaFileValue;
    /**
     * Sort the schema lexicographically
     */
    sortSchema?: boolean;
    /**
     * Options to be passed to the schema generator
     * Only applicable if "autoSchemaFile" = true
     */
    buildSchemaOptions?: BuildSchemaOptions;
    /**
     * Prepends the global prefix to the url
     *
     * @see [faq/global-prefix](Global Prefix)
     */
    useGlobalPrefix?: boolean;
    /**
     * Enable/disable enhancers for @ResolveField()
     */
    fieldResolverEnhancers?: Enhancer[];
    /**
     * Resolver validation options.
     */
    resolverValidationOptions?: IResolverValidationOptions;
    /**
     * Inherit missing resolvers from their interface types defined in the resolvers object.
     */
    inheritResolversFromInterfaces?: boolean;
    /**
     * Function to be applied to the schema letting you register custom transformations.
     */
    transformSchema?: (schema: GraphQLSchema) => GraphQLSchema | Promise<GraphQLSchema>;
    /**
     * Apply `transformSchema` to the `autoSchemaFile`
     */
    transformAutoSchemaFile?: boolean;
    /**
     * Context function
     */
    context?: any;
    /**
     * Extra static metadata to be loaded into the specification
     */
    metadata?: () => Promise<Record<string, any>>;
}
export interface GqlOptionsFactory<T extends Record<string, any> = GqlModuleOptions> {
    createGqlOptions(): Promise<Omit<T, 'driver'>> | Omit<T, 'driver'>;
}
export interface GqlModuleAsyncOptions<TOptions extends Record<string, any> = GqlModuleOptions, TFactory = GqlOptionsFactory<TOptions>> extends Pick<ModuleMetadata, 'imports'> {
    /**
     * GraphQL server driver
     */
    driver?: TOptions['driver'];
    useExisting?: Type<TFactory>;
    useClass?: Type<TFactory>;
    useFactory?: (...args: any[]) => Promise<Omit<TOptions, 'driver'>> | Omit<TOptions, 'driver'>;
    inject?: any[];
}
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