import type { NodeType, WarnFunction } from 'core-types';
import type { TypeDefinitionNode } from 'graphql';
export type NameGeneratorTestFunction = (name: string) => boolean;
export type NameGeneratorFunction = (baseName: string, nameHint: string, test: NameGeneratorTestFunction) => string;
export type InternalNameGeneratorFunction = (baseName: string, nameHint: string) => string;
export interface CoreTypesToGraphqlOptions {
    warn?: WarnFunction;
    /**
     * The filename to be written to. This is a hint, no file will be written
     * by the conversion function.
     */
    filename?: string;
    /**
     * The name of the source file from which the core-types comes.
     */
    sourceFilename?: string;
    /**
     * The name of the package using this package.
     */
    userPackage?: string;
    /**
     * The url to the package using this package.
     */
    userPackageUrl?: string;
    /**
     * Optional custom type used for null
     */
    nullTypeName?: string | null;
    /**
     * A function for generating names. GraphQL doesn't support inline objects
     * or union types, so these must be constructed as separate types.
     */
    nameGenerator?: NameGeneratorFunction;
    /**
     * What to do when detecting an unsupported type
     *
     *  - `ignore`: Ignore (skip) type
     *  - `warn`: Ignore type, but warn (default)
     *  - `error`: Throw an error
     */
    unsupported?: 'ignore' | 'warn' | 'error';
    /**
     * Includes a header comment about the auto-generated file
     */
    includeComment?: boolean;
}
export interface GraphqlToCoreTypesOptions {
    warn?: WarnFunction;
    /**
     * What to do when detecting an unsupported type
     *
     *  - `ignore`: Ignore (skip) type (default)
     *  - `warn`: Ignore type, but warn
     *  - `error`: Throw an error
     */
    unsupported?: 'ignore' | 'warn' | 'error';
}
export interface NameMapItem {
    node: NodeType;
    gqlType?: TypeDefinitionNode;
}
export interface Context {
    options: Required<Omit<CoreTypesToGraphqlOptions, 'filename' | 'sourceFilename' | 'userPackage' | 'userPackageUrl'>>;
    nameMap: Map<string, NameMapItem>;
    nameGenerator: InternalNameGeneratorFunction;
}