import { ZodObject, ZodRawShape } from "zod";
import { IZod2xLayerMetadata } from "../lib/zod_ext";
import { ASTNodes } from "./ast_types";
export interface IZod2AstOpt {
    /**
     * When true, it will throw an error if a bad data modeling practice is detected.
     * Default is true.
     */
    strict?: boolean;
    /**
     * Metadata used to provide additional information to the AST nodes about layers modeling of
     * the schema.
     */
    layer?: IZod2xLayerMetadata;
}
/**
 * This class creates AST nodes used to transpile Zod Schemas to other languages.
 * Simply create an instance and call build with a ZodObject to obtain a list with transpilerable
 * nodes.
 */
export declare class Zod2Ast {
    /**
     * Transpilerable nodes of current data model
     */
    private nodes;
    /**
     * Lazy schemas for further analysis
     */
    private lazyPointers;
    /**
     * Warnings generated during the AST creation to aware user about bad practices
     */
    private warnings;
    private opt;
    constructor(opt?: IZod2AstOpt);
    /**
     * Check if the layer of the item is compatible with the layer of the schema. If does and the
     * transpilerable item is in a different file, it returns the file name.
     *
     * @param itemName
     * @param layerMetadata
     * @returns
     */
    private _getTranspilerableFile;
    /**
     * Transpilerable items are treated as references in the AST
     * @param ref
     * @param refType
     * @param discriminantValue
     * @returns
     */
    private _createDefinition;
    /**
     * Extracts and formats the enumeration values from a given ZodEnum or ZodNativeEnum schema.
     * @param schema - A ZodEnum or ZodNativeEnum schema containing the enumeration values.
     * @returns A list of key-value pairs where the key is a formatted string and the value
     *          is either a string or a number.
     */
    private _getEnumValues;
    /**
     * Intersects the properties of two AST nodes and returns the combined properties.
     *
     * @param left - The left AST definition to intersect.
     * @param right - The right AST definition to intersect.
     * @returns An object containing the combined properties of the left and right AST nodes.
     */
    private _intersectAstNodes;
    /**
     * Merges multiple AST definitions into a single AST object containing combined properties.
     * - Equal properties mush have the same type and array dimension.
     * - If a property is optional in one definition and required in another, it will be considered
     *      optional in the merged object.
     * - If a property is nullable in one definition and non-nullable in another, it will be
     *      considered nullable in the merged object.
     *
     * @param options - An array of AST definitions to be merged.
     * @returns An object containing the merged properties.
     * @throws AstNodeError - If properties with different types or array dimensions are encountered.
     */
    private _unionAstNodes;
    private _getNames;
    private _getEnumAst;
    private _getObjectAst;
    private _getUnionAst;
    private _getIntersectionAst;
    /**
     * Build the AST node of provided Zod Schema
     * @param schema
     * @returns
     */
    private _zodToAST;
    /**
     * Create the AST identifying the nodes that can be transpiled.
     * @param schema
     * @returns Transpilerable nodes.
     */
    build<T extends ZodRawShape>(schema: ZodObject<T>): ASTNodes;
}