import { ComplexQueryExpression } from '../api/ComplexQueryLang.js';
import { ComplexQueryOptions, ASTNode, AST, Walker } from '../ComplexQuery.js';
import '@arcgis/core/geometry/Geometry';

/**
 * Options extended by a 'geometryField'.
 */
type ComplexQueryToSolrQLOptions = ComplexQueryOptions & {
    /** This option allows overwriting the name 'geometry' with a custom field name */
    geometryField?: string;
};
/**
 * Type of a transformer function.
 *
 * @param node Current ast node.
 * @param queryOptions The query options.
 * @param subResults Result of child transformers.
 *
 * @returns Transformed ast node.
 */
type Transformer = (node: ASTNode, queryOptions?: ComplexQueryToSolrQLOptions, subResults?: string[]) => string;
/**
 * Type of a custom transformer function.
 *
 * @param this The custom this context.
 * @param node The current ast node.
 * @param queryOptions The used query options.
 * @param subResults Result of child transformers.
 * @returns Transformation result.
 */
type CustomTransformer = (this: {
    /** Allows access to default transformers */
    _super: Record<string, Transformer>;
    /** A helper utility to escape string values */
    _escape: (v: any, keepWildCardChars?: boolean) => string;
    /** A helper utility to convert a value into a string */
    _valueToString: (v: any) => string;
}, node: ASTNode, queryOptions?: ComplexQueryToSolrQLOptions, subResults?: string[]) => string;
/**
 * Allows overload of transformers used to create solr filter expressions.
 * This allows customizing e.g. of $suggest operator.
 * @param customTransformers the custom transformer function.
 * @returns an object with customized toSolrQL and astToSolrQL functions.
 */
declare function overload(customTransformers: Record<string, CustomTransformer>): {
    /**
     * Encodes query to solr filter, it is using the custom transformers.
     */
    toSolrQL: (query?: ComplexQueryExpression, options?: ComplexQueryToSolrQLOptions) => string;
    /**
     * Encodes ast/walker to solr filter, it is using the custom transformers.
     */
    astToSolrQL: (astOrWalker: AST | Walker) => string;
};
/**
 * Transforms a complex query into a solr filter expression.
 * @param query complex query.
 * @param options transformation options.
 * @returns a solr filter expression.
 */
declare const toSolrQL: (query?: ComplexQueryExpression | undefined, options?: ComplexQueryToSolrQLOptions | undefined) => string;
/**
 * Transforms AST or Walker of complex query into a solr filter expression.
 * @param astOrWalker AST or Walker to transform
 * @returns a solr filter expression.
 */
declare const astToSolrQL: (astOrWalker: Walker | AST) => string;
declare const _operatorMapping: Record<string, Transformer>;

export { _operatorMapping, astToSolrQL, overload, toSolrQL };
export type { ComplexQueryToSolrQLOptions, CustomTransformer, Transformer };